From: Amiri Barksdale at Home Date: Sat, 10 Apr 2010 19:43:40 +0000 (-0700) Subject: Beginning of docs. Making headway. Next is subroutine docs X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=commitdiff_plain;h=146ec12072b06ff504e6b0b4004a98374d602cb8;p=dbsrgits%2FDBIx-Class-ResultSource-MultipleTableInheritance.git Beginning of docs. Making headway. Next is subroutine docs --- diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..059b87d --- /dev/null +++ b/.gitignore @@ -0,0 +1,2 @@ +blib +*.sw? diff --git a/META.yml b/META.yml new file mode 100644 index 0000000..0882657 --- /dev/null +++ b/META.yml @@ -0,0 +1,31 @@ +--- +abstract: ~ +author: + - 'Matt S. Trout, ' +build_requires: + ExtUtils::MakeMaker: 6.42 +configure_requires: + ExtUtils::MakeMaker: 6.42 +distribution_type: module +generated_by: 'Module::Install version 0.95' +license: perl +meta-spec: + url: http://module-build.sourceforge.net/META-spec-v1.4.html + version: 1.4 +name: DBIx-Class-ResultSource-MultipleTableInheritance +no_index: + directory: + - inc + - t +requires: + Carp::Clan: 0 + DBIx::Class: 0 + Method::Signatures::Simple: 0 + String::TT: 0 + aliased: 0 + namespace::autoclean: 0 + parent: 0 + signatures: 0 +resources: + license: http://dev.perl.org/licenses/ +version: 0.01 diff --git a/MTITest-0.1-PostgreSQL.sql b/MTITest-0.1-PostgreSQL.sql new file mode 100644 index 0000000..e7f13e2 --- /dev/null +++ b/MTITest-0.1-PostgreSQL.sql @@ -0,0 +1,174 @@ +-- +-- Created by SQL::Translator::Producer::PostgreSQL +-- Created on Sat Apr 10 11:29:16 2010 +-- +-- +-- Table: just_a_table +-- +DROP TABLE "just_a_table" CASCADE; +CREATE TABLE "just_a_table" ( + "id" serial NOT NULL, + "name" character varying(255) NOT NULL, + PRIMARY KEY ("id") +); + +-- +-- Table: mixin +-- +DROP TABLE "mixin" CASCADE; +CREATE TABLE "mixin" ( + "id" serial NOT NULL, + "words" text NOT NULL, + PRIMARY KEY ("id") +); + +-- +-- Table: _bar +-- +DROP TABLE "_bar" CASCADE; +CREATE TABLE "_bar" ( + "id" integer NOT NULL, + "b" integer NOT NULL, + PRIMARY KEY ("id") +); +CREATE INDEX "_bar_idx_b" on "_bar" ("b"); + +-- +-- Table: _foo +-- +DROP TABLE "_foo" CASCADE; +CREATE TABLE "_foo" ( + "id" serial NOT NULL, + "a" integer, + PRIMARY KEY ("id") +); +CREATE INDEX "_foo_idx_a" on "_foo" ("a"); + +-- +-- View: "foo" +-- +DROP VIEW "foo"; +CREATE VIEW "foo" ( "id", "a" ) AS + SELECT _foo.id, a FROM _foo; + +CREATE OR REPLACE FUNCTION foo_insert + (_a INTEGER) + RETURNS VOID AS $function$ + BEGIN + INSERT INTO _foo ( a) VALUES ( _a ); + END; +$function$ LANGUAGE plpgsql; + + +CREATE OR REPLACE FUNCTION foo_update + (_id INTEGER, _a INTEGER) + RETURNS VOID AS $function$ + BEGIN + UPDATE _foo SET a = _a WHERE ( id = _id ); + END; +$function$ LANGUAGE plpgsql; + + +CREATE OR REPLACE FUNCTION foo_delete + (_id INTEGER) + RETURNS VOID AS $function$ + BEGIN + DELETE FROM _foo WHERE ( id = _id ); + END; +$function$ LANGUAGE plpgsql; + + +CREATE RULE _foo_insert_rule AS + ON INSERT TO foo + DO INSTEAD ( + SELECT foo_insert(NEW.a) + ); + + +CREATE RULE _foo_update_rule AS + ON UPDATE TO foo + DO INSTEAD ( + SELECT foo_update(OLD.id, NEW.a) + ); + + +CREATE RULE _foo_delete_rule AS + ON DELETE TO foo + DO INSTEAD ( + SELECT foo_delete(OLD.id) + ); + +; + +-- +-- View: "bar" +-- +DROP VIEW "bar"; +CREATE VIEW "bar" ( "id", "a", "words", "b" ) AS + SELECT _bar.id, b, words, a FROM _bar _bar JOIN mixin mixin ON mixin.id = _bar.id JOIN foo foo ON foo.id = _bar.id; + +CREATE OR REPLACE FUNCTION bar_insert + (_b INTEGER, _words TEXT, _a INTEGER) + RETURNS VOID AS $function$ + BEGIN + INSERT INTO foo ( a) VALUES ( _a ); + INSERT INTO _bar ( b, id) VALUES ( _b, currval('_foo_id_seq') ); + INSERT INTO mixin ( id, words) VALUES ( currval('_foo_id_seq'), _words ); + END; +$function$ LANGUAGE plpgsql; + + +CREATE OR REPLACE FUNCTION bar_update + (_id INTEGER, _b INTEGER, _words TEXT, _a INTEGER) + RETURNS VOID AS $function$ + BEGIN + UPDATE _bar SET b = _b WHERE ( id = _id ); + UPDATE mixin SET words = _words WHERE ( id = _id ); + UPDATE foo SET a = _a WHERE ( id = _id ); + END; +$function$ LANGUAGE plpgsql; + + +CREATE OR REPLACE FUNCTION bar_delete + (_id INTEGER) + RETURNS VOID AS $function$ + BEGIN + DELETE FROM _bar WHERE ( id = _id ); + DELETE FROM mixin WHERE ( id = _id ); + DELETE FROM foo WHERE ( id = _id ); + END; +$function$ LANGUAGE plpgsql; + + +CREATE RULE _bar_insert_rule AS + ON INSERT TO bar + DO INSTEAD ( + SELECT bar_insert(NEW.b, NEW.words, NEW.a) + ); + + +CREATE RULE _bar_update_rule AS + ON UPDATE TO bar + DO INSTEAD ( + SELECT bar_update(OLD.id, NEW.b, NEW.words, NEW.a) + ); + + +CREATE RULE _bar_delete_rule AS + ON DELETE TO bar + DO INSTEAD ( + SELECT bar_delete(OLD.id) + ); + +; + +-- +-- Foreign Key Definitions +-- + +ALTER TABLE "_bar" ADD FOREIGN KEY ("b") + REFERENCES "just_a_table" ("id") ON DELETE CASCADE ON UPDATE CASCADE DEFERRABLE; + +ALTER TABLE "_foo" ADD FOREIGN KEY ("a") + REFERENCES "_bar" ("id") ON DELETE CASCADE ON UPDATE CASCADE DEFERRABLE; + diff --git a/Makefile b/Makefile new file mode 100644 index 0000000..e10da01 --- /dev/null +++ b/Makefile @@ -0,0 +1,836 @@ +# This Makefile is for the DBIx::Class::ResultSource::MultipleTableInheritance extension to perl. +# +# It was generated automatically by MakeMaker version +# 6.56 (Revision: 65600) from the contents of +# Makefile.PL. Don't edit this file, edit Makefile.PL instead. +# +# ANY CHANGES MADE HERE WILL BE LOST! +# +# MakeMaker ARGV: () +# + +# MakeMaker Parameters: + +# AUTHOR => q[Matt S. Trout, ] +# BUILD_REQUIRES => { ExtUtils::MakeMaker=>q[6.42] } +# DIR => [] +# DISTNAME => q[DBIx-Class-ResultSource-MultipleTableInheritance] +# LICENSE => q[perl] +# NAME => q[DBIx::Class::ResultSource::MultipleTableInheritance] +# NO_META => q[1] +# PREREQ_PM => { String::TT=>q[0], namespace::autoclean=>q[0], parent=>q[0], Method::Signatures::Simple=>q[0], ExtUtils::MakeMaker=>q[6.42], aliased=>q[0], signatures=>q[0], Carp::Clan=>q[0], DBIx::Class=>q[0] } +# VERSION => q[0.01] +# dist => { PREOP=>q[$(PERL) -I. "-MModule::Install::Admin" -e "dist_preop(q($(DISTVNAME)))"] } +# realclean => { FILES=>q[MYMETA.yml] } +# test => { TESTS=>q[t/01load.t t/02view_def.t] } + +# --- MakeMaker post_initialize section: + + +# --- MakeMaker const_config section: + +# These definitions are from config.sh (via /home/amiri/local/lib/perl5/5.10.1/x86_64-linux-thread-multi/Config.pm). +# They may have been overridden via Makefile.PL or on the command line. +AR = ar +CC = cc +CCCDLFLAGS = -fPIC +CCDLFLAGS = -Wl,-E +DLEXT = so +DLSRC = dl_dlopen.xs +EXE_EXT = +FULL_AR = /usr/bin/ar +LD = cc +LDDLFLAGS = -shared -O2 -L/usr/local/lib -fstack-protector +LDFLAGS = -fstack-protector -L/usr/local/lib +LIBC = /lib/libc-2.10.1.so +LIB_EXT = .a +OBJ_EXT = .o +OSNAME = linux +OSVERS = 2.6.31-20-generic +RANLIB = : +SITELIBEXP = /home/amiri/local/lib/perl5/site_perl/5.10.1 +SITEARCHEXP = /home/amiri/local/lib/perl5/site_perl/5.10.1/x86_64-linux-thread-multi +SO = so +VENDORARCHEXP = +VENDORLIBEXP = + + +# --- MakeMaker constants section: +AR_STATIC_ARGS = cr +DIRFILESEP = / +DFSEP = $(DIRFILESEP) +NAME = DBIx::Class::ResultSource::MultipleTableInheritance +NAME_SYM = DBIx_Class_ResultSource_MultipleTableInheritance +VERSION = 0.01 +VERSION_MACRO = VERSION +VERSION_SYM = 0_01 +DEFINE_VERSION = -D$(VERSION_MACRO)=\"$(VERSION)\" +XS_VERSION = 0.01 +XS_VERSION_MACRO = XS_VERSION +XS_DEFINE_VERSION = -D$(XS_VERSION_MACRO)=\"$(XS_VERSION)\" +INST_ARCHLIB = blib/arch +INST_SCRIPT = blib/script +INST_BIN = blib/bin +INST_LIB = blib/lib +INST_MAN1DIR = blib/man1 +INST_MAN3DIR = blib/man3 +MAN1EXT = 1 +MAN3EXT = 3 +INSTALLDIRS = site +INSTALL_BASE = /home/amiri/opensourceprojects/mti +DESTDIR = +PREFIX = $(INSTALL_BASE) +INSTALLPRIVLIB = $(INSTALL_BASE)/lib/perl5 +DESTINSTALLPRIVLIB = $(DESTDIR)$(INSTALLPRIVLIB) +INSTALLSITELIB = $(INSTALL_BASE)/lib/perl5 +DESTINSTALLSITELIB = $(DESTDIR)$(INSTALLSITELIB) +INSTALLVENDORLIB = $(INSTALL_BASE)/lib/perl5 +DESTINSTALLVENDORLIB = $(DESTDIR)$(INSTALLVENDORLIB) +INSTALLARCHLIB = $(INSTALL_BASE)/lib/perl5/x86_64-linux-thread-multi +DESTINSTALLARCHLIB = $(DESTDIR)$(INSTALLARCHLIB) +INSTALLSITEARCH = $(INSTALL_BASE)/lib/perl5/x86_64-linux-thread-multi +DESTINSTALLSITEARCH = $(DESTDIR)$(INSTALLSITEARCH) +INSTALLVENDORARCH = $(INSTALL_BASE)/lib/perl5/x86_64-linux-thread-multi +DESTINSTALLVENDORARCH = $(DESTDIR)$(INSTALLVENDORARCH) +INSTALLBIN = $(INSTALL_BASE)/bin +DESTINSTALLBIN = $(DESTDIR)$(INSTALLBIN) +INSTALLSITEBIN = $(INSTALL_BASE)/bin +DESTINSTALLSITEBIN = $(DESTDIR)$(INSTALLSITEBIN) +INSTALLVENDORBIN = $(INSTALL_BASE)/bin +DESTINSTALLVENDORBIN = $(DESTDIR)$(INSTALLVENDORBIN) +INSTALLSCRIPT = $(INSTALL_BASE)/bin +DESTINSTALLSCRIPT = $(DESTDIR)$(INSTALLSCRIPT) +INSTALLSITESCRIPT = $(INSTALL_BASE)/bin +DESTINSTALLSITESCRIPT = $(DESTDIR)$(INSTALLSITESCRIPT) +INSTALLVENDORSCRIPT = $(INSTALL_BASE)/bin +DESTINSTALLVENDORSCRIPT = $(DESTDIR)$(INSTALLVENDORSCRIPT) +INSTALLMAN1DIR = $(INSTALL_BASE)/man/man1 +DESTINSTALLMAN1DIR = $(DESTDIR)$(INSTALLMAN1DIR) +INSTALLSITEMAN1DIR = $(INSTALL_BASE)/man/man1 +DESTINSTALLSITEMAN1DIR = $(DESTDIR)$(INSTALLSITEMAN1DIR) +INSTALLVENDORMAN1DIR = $(INSTALL_BASE)/man/man1 +DESTINSTALLVENDORMAN1DIR = $(DESTDIR)$(INSTALLVENDORMAN1DIR) +INSTALLMAN3DIR = $(INSTALL_BASE)/man/man3 +DESTINSTALLMAN3DIR = $(DESTDIR)$(INSTALLMAN3DIR) +INSTALLSITEMAN3DIR = $(INSTALL_BASE)/man/man3 +DESTINSTALLSITEMAN3DIR = $(DESTDIR)$(INSTALLSITEMAN3DIR) +INSTALLVENDORMAN3DIR = $(INSTALL_BASE)/man/man3 +DESTINSTALLVENDORMAN3DIR = $(DESTDIR)$(INSTALLVENDORMAN3DIR) +PERL_LIB = +PERL_ARCHLIB = /home/amiri/local/lib/perl5/5.10.1/x86_64-linux-thread-multi +LIBPERL_A = libperl.a +FIRST_MAKEFILE = Makefile +MAKEFILE_OLD = Makefile.old +MAKE_APERL_FILE = Makefile.aperl +PERLMAINCC = $(CC) +PERL_INC = /home/amiri/local/lib/perl5/5.10.1/x86_64-linux-thread-multi/CORE +PERL = /home/amiri/local/bin/perl "-Iinc" +FULLPERL = /home/amiri/local/bin/perl "-Iinc" +ABSPERL = $(PERL) +PERLRUN = $(PERL) +FULLPERLRUN = $(FULLPERL) +ABSPERLRUN = $(ABSPERL) +PERLRUNINST = $(PERLRUN) "-I$(INST_ARCHLIB)" "-Iinc" "-I$(INST_LIB)" +FULLPERLRUNINST = $(FULLPERLRUN) "-I$(INST_ARCHLIB)" "-Iinc" "-I$(INST_LIB)" +ABSPERLRUNINST = $(ABSPERLRUN) "-I$(INST_ARCHLIB)" "-Iinc" "-I$(INST_LIB)" +PERL_CORE = 0 +PERM_DIR = 755 +PERM_RW = 644 +PERM_RWX = 755 + +MAKEMAKER = /home/amiri/local/lib/perl5/5.10.1/ExtUtils/MakeMaker.pm +MM_VERSION = 6.56 +MM_REVISION = 65600 + +# FULLEXT = Pathname for extension directory (eg Foo/Bar/Oracle). +# BASEEXT = Basename part of FULLEXT. May be just equal FULLEXT. (eg Oracle) +# PARENT_NAME = NAME without BASEEXT and no trailing :: (eg Foo::Bar) +# DLBASE = Basename part of dynamic library. May be just equal BASEEXT. +MAKE = make +FULLEXT = DBIx/Class/ResultSource/MultipleTableInheritance +BASEEXT = MultipleTableInheritance +PARENT_NAME = DBIx::Class::ResultSource +DLBASE = $(BASEEXT) +VERSION_FROM = +OBJECT = +LDFROM = $(OBJECT) +LINKTYPE = dynamic +BOOTDEP = + +# Handy lists of source code files: +XS_FILES = +C_FILES = +O_FILES = +H_FILES = +MAN1PODS = +MAN3PODS = lib/DBIx/Class/ResultSource/MultipleTableInheritance.pm + +# Where is the Config information that we are using/depend on +CONFIGDEP = $(PERL_ARCHLIB)$(DFSEP)Config.pm $(PERL_INC)$(DFSEP)config.h + +# Where to build things +INST_LIBDIR = $(INST_LIB)/DBIx/Class/ResultSource +INST_ARCHLIBDIR = $(INST_ARCHLIB)/DBIx/Class/ResultSource + +INST_AUTODIR = $(INST_LIB)/auto/$(FULLEXT) +INST_ARCHAUTODIR = $(INST_ARCHLIB)/auto/$(FULLEXT) + +INST_STATIC = +INST_DYNAMIC = +INST_BOOT = + +# Extra linker info +EXPORT_LIST = +PERL_ARCHIVE = +PERL_ARCHIVE_AFTER = + + +TO_INST_PM = lib/DBIx/Class/ResultSource/MultipleTableInheritance.pm \ + sql-test.pl + +PM_TO_BLIB = lib/DBIx/Class/ResultSource/MultipleTableInheritance.pm \ + blib/lib/DBIx/Class/ResultSource/MultipleTableInheritance.pm \ + sql-test.pl \ + $(INST_LIB)/DBIx/Class/ResultSource/sql-test.pl + + +# --- MakeMaker platform_constants section: +MM_Unix_VERSION = 6.56 +PERL_MALLOC_DEF = -DPERL_EXTMALLOC_DEF -Dmalloc=Perl_malloc -Dfree=Perl_mfree -Drealloc=Perl_realloc -Dcalloc=Perl_calloc + + +# --- MakeMaker tool_autosplit section: +# Usage: $(AUTOSPLITFILE) FileToSplit AutoDirToSplitInto +AUTOSPLITFILE = $(ABSPERLRUN) -e 'use AutoSplit; autosplit($$ARGV[0], $$ARGV[1], 0, 1, 1)' -- + + + +# --- MakeMaker tool_xsubpp section: + + +# --- MakeMaker tools_other section: +SHELL = /bin/sh +CHMOD = chmod +CP = cp +MV = mv +NOOP = $(TRUE) +NOECHO = @ +RM_F = rm -f +RM_RF = rm -rf +TEST_F = test -f +TOUCH = touch +UMASK_NULL = umask 0 +DEV_NULL = > /dev/null 2>&1 +MKPATH = $(ABSPERLRUN) -MExtUtils::Command -e 'mkpath' -- +EQUALIZE_TIMESTAMP = $(ABSPERLRUN) -MExtUtils::Command -e 'eqtime' -- +FALSE = false +TRUE = true +ECHO = echo +ECHO_N = echo -n +UNINST = 0 +VERBINST = 0 +MOD_INSTALL = $(ABSPERLRUN) -MExtUtils::Install -e 'install([ from_to => {@ARGV}, verbose => '\''$(VERBINST)'\'', uninstall_shadows => '\''$(UNINST)'\'', dir_mode => '\''$(PERM_DIR)'\'' ]);' -- +DOC_INSTALL = $(ABSPERLRUN) -MExtUtils::Command::MM -e 'perllocal_install' -- +UNINSTALL = $(ABSPERLRUN) -MExtUtils::Command::MM -e 'uninstall' -- +WARN_IF_OLD_PACKLIST = $(ABSPERLRUN) -MExtUtils::Command::MM -e 'warn_if_old_packlist' -- +MACROSTART = +MACROEND = +USEMAKEFILE = -f +FIXIN = $(ABSPERLRUN) -MExtUtils::MY -e 'MY->fixin(shift)' -- + + +# --- MakeMaker makemakerdflt section: +makemakerdflt : all + $(NOECHO) $(NOOP) + + +# --- MakeMaker dist section: +TAR = tar +TARFLAGS = cvf +ZIP = zip +ZIPFLAGS = -r +COMPRESS = gzip --best +SUFFIX = .gz +SHAR = shar +PREOP = $(PERL) -I. 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We don't delete +# the Makefile here so a later make realclean still has a makefile to use. + +clean :: clean_subdirs + - $(RM_F) \ + *$(LIB_EXT) core \ + core.[0-9] $(INST_ARCHAUTODIR)/extralibs.all \ + core.[0-9][0-9] $(BASEEXT).bso \ + pm_to_blib.ts core.[0-9][0-9][0-9][0-9] \ + $(BASEEXT).x $(BOOTSTRAP) \ + perl$(EXE_EXT) tmon.out \ + *$(OBJ_EXT) pm_to_blib \ + $(INST_ARCHAUTODIR)/extralibs.ld blibdirs.ts \ + core.[0-9][0-9][0-9][0-9][0-9] *perl.core \ + core.*perl.*.? $(MAKE_APERL_FILE) \ + perl $(BASEEXT).def \ + core.[0-9][0-9][0-9] mon.out \ + lib$(BASEEXT).def perlmain.c \ + perl.exe so_locations \ + $(BASEEXT).exp + - $(RM_RF) \ + blib + - $(MV) $(FIRST_MAKEFILE) $(MAKEFILE_OLD) $(DEV_NULL) + + +# --- MakeMaker realclean_subdirs section: +realclean_subdirs : + $(NOECHO) $(NOOP) + + +# --- MakeMaker realclean section: +# Delete temporary files (via clean) and also delete dist files +realclean purge :: clean realclean_subdirs + - $(RM_F) \ + $(MAKEFILE_OLD) $(FIRST_MAKEFILE) + - $(RM_RF) \ + MYMETA.yml $(DISTVNAME) + + +# --- MakeMaker metafile section: +metafile : + $(NOECHO) $(NOOP) + + +# --- MakeMaker signature section: +signature : + cpansign -s + + +# --- MakeMaker dist_basics section: +distclean :: realclean distcheck + $(NOECHO) $(NOOP) + +distcheck : + $(PERLRUN) "-MExtUtils::Manifest=fullcheck" -e fullcheck + +skipcheck : + $(PERLRUN) "-MExtUtils::Manifest=skipcheck" -e skipcheck + +manifest : + $(PERLRUN) "-MExtUtils::Manifest=mkmanifest" -e mkmanifest + +veryclean : realclean + $(RM_F) *~ */*~ *.orig */*.orig *.bak */*.bak *.old */*.old + + + +# --- MakeMaker dist_core section: + +dist : $(DIST_DEFAULT) $(FIRST_MAKEFILE) + $(NOECHO) $(ABSPERLRUN) -l -e 'print '\''Warning: Makefile possibly out of date with $(VERSION_FROM)'\''' \ + -e ' if -e '\''$(VERSION_FROM)'\'' and -M '\''$(VERSION_FROM)'\'' < -M '\''$(FIRST_MAKEFILE)'\'';' -- + +tardist : $(DISTVNAME).tar$(SUFFIX) + $(NOECHO) $(NOOP) + +uutardist : $(DISTVNAME).tar$(SUFFIX) + uuencode 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to $?" + $(NOECHO) $(ECHO) "Cleaning current config before rebuilding Makefile..." + -$(NOECHO) $(RM_F) $(MAKEFILE_OLD) + -$(NOECHO) $(MV) $(FIRST_MAKEFILE) $(MAKEFILE_OLD) + - $(MAKE) $(USEMAKEFILE) $(MAKEFILE_OLD) clean $(DEV_NULL) + $(PERLRUN) Makefile.PL + $(NOECHO) $(ECHO) "==> Your Makefile has been rebuilt. <==" + $(NOECHO) $(ECHO) "==> Please rerun the $(MAKE) command. <==" + $(FALSE) + + + +# --- MakeMaker staticmake section: + +# --- MakeMaker makeaperl section --- +MAP_TARGET = perl +FULLPERL = /home/amiri/local/bin/perl + +$(MAP_TARGET) :: static $(MAKE_APERL_FILE) + $(MAKE) $(USEMAKEFILE) $(MAKE_APERL_FILE) $@ + +$(MAKE_APERL_FILE) : $(FIRST_MAKEFILE) pm_to_blib + $(NOECHO) $(ECHO) Writing \"$(MAKE_APERL_FILE)\" for this $(MAP_TARGET) + $(NOECHO) $(PERLRUNINST) \ + Makefile.PL DIR= \ + MAKEFILE=$(MAKE_APERL_FILE) LINKTYPE=static \ + MAKEAPERL=1 NORECURS=1 CCCDLFLAGS= + + +# --- MakeMaker test section: + +TEST_VERBOSE=0 +TEST_TYPE=test_$(LINKTYPE) +TEST_FILE = test.pl +TEST_FILES = t/01load.t t/02view_def.t +TESTDB_SW = -d + +testdb :: testdb_$(LINKTYPE) + +test :: $(TEST_TYPE) subdirs-test + +subdirs-test :: + $(NOECHO) $(NOOP) + + +test_dynamic :: pure_all + PERL_DL_NONLAZY=1 $(FULLPERLRUN) "-MExtUtils::Command::MM" "-e" "test_harness($(TEST_VERBOSE), 'inc', '$(INST_LIB)', '$(INST_ARCHLIB)')" $(TEST_FILES) + +testdb_dynamic :: pure_all + PERL_DL_NONLAZY=1 $(FULLPERLRUN) $(TESTDB_SW) "-Iinc" "-I$(INST_LIB)" "-I$(INST_ARCHLIB)" $(TEST_FILE) + +test_ : test_dynamic + +test_static :: test_dynamic +testdb_static :: testdb_dynamic + + +# --- MakeMaker ppd section: +# Creates a PPD (Perl Package Description) for a binary distribution. +ppd : + $(NOECHO) $(ECHO) '' > $(DISTNAME).ppd + $(NOECHO) $(ECHO) ' ' >> $(DISTNAME).ppd + $(NOECHO) $(ECHO) ' Matt S. Trout, <mst@shadowcatsystems.co.uk>' >> $(DISTNAME).ppd + $(NOECHO) $(ECHO) ' ' >> $(DISTNAME).ppd + $(NOECHO) $(ECHO) ' ' >> $(DISTNAME).ppd + $(NOECHO) $(ECHO) ' ' >> $(DISTNAME).ppd + $(NOECHO) $(ECHO) ' ' >> $(DISTNAME).ppd + $(NOECHO) $(ECHO) ' ' >> $(DISTNAME).ppd + $(NOECHO) $(ECHO) ' ' >> $(DISTNAME).ppd + $(NOECHO) $(ECHO) ' ' >> $(DISTNAME).ppd + $(NOECHO) $(ECHO) ' ' >> $(DISTNAME).ppd + $(NOECHO) $(ECHO) ' ' >> $(DISTNAME).ppd + $(NOECHO) $(ECHO) ' ' >> $(DISTNAME).ppd + $(NOECHO) $(ECHO) ' ' >> $(DISTNAME).ppd + $(NOECHO) $(ECHO) ' ' >> $(DISTNAME).ppd + $(NOECHO) $(ECHO) '' >> $(DISTNAME).ppd + + +# --- MakeMaker pm_to_blib section: + +pm_to_blib : $(FIRST_MAKEFILE) $(TO_INST_PM) + $(NOECHO) $(ABSPERLRUN) -MExtUtils::Install -e 'pm_to_blib({@ARGV}, '\''$(INST_LIB)/auto'\'', q[$(PM_FILTER)], '\''$(PERM_DIR)'\'')' -- \ + lib/DBIx/Class/ResultSource/MultipleTableInheritance.pm blib/lib/DBIx/Class/ResultSource/MultipleTableInheritance.pm \ + sql-test.pl $(INST_LIB)/DBIx/Class/ResultSource/sql-test.pl + $(NOECHO) $(TOUCH) pm_to_blib + + +# --- MakeMaker selfdocument section: + + +# --- MakeMaker postamble section: + + +# End. +# Postamble by Module::Install 0.95 +# --- Module::Install::Admin::Makefile section: + +realclean purge :: + $(RM_F) $(DISTVNAME).tar$(SUFFIX) + $(RM_F) MANIFEST.bak _build + $(PERL) "-Ilib" "-MModule::Install::Admin" -e "remove_meta()" + $(RM_RF) inc + +reset :: purge + +upload :: test dist + cpan-upload -verbose $(DISTVNAME).tar$(SUFFIX) + +grok :: + perldoc Module::Install + +distsign :: + cpansign -s + +# --- Module::Install::AutoInstall section: + +config :: installdeps + $(NOECHO) $(NOOP) + +checkdeps :: + $(PERL) Makefile.PL --checkdeps + +installdeps :: + $(NOECHO) $(NOOP) + diff --git a/Makefile.PL b/Makefile.PL index 26ac685..2419d3f 100644 --- a/Makefile.PL +++ b/Makefile.PL @@ -2,14 +2,22 @@ use strict; use warnings; use inc::Module::Install; +if ($Module::Install::AUTHOR) { + system('pod2text lib/DBIx/Class/ResultSource/MultipleTableInheritance.pm > README'); + system('pod2html lib/DBIx/Class/ResultSource/MultipleTableInheritance.pm > README.html'); +} + name 'DBIx-Class-ResultSource-MultipleTableInheritance'; +all_from 'lib/DBIx/Class/ResultSource/MultipleTableInheritance.pm'; -requires 'parent'; -requires 'String::TT'; +requires 'Carp::Clan'; +requires 'DBIx::Class'; requires 'Method::Signatures::Simple'; +requires 'String::TT'; requires 'aliased'; requires 'namespace::autoclean'; -requires 'Carp::Clan'; -requires 'DBIx::Class'; +requires 'parent'; +requires 'signatures'; +auto_install; WriteAll; diff --git a/README b/README new file mode 100644 index 0000000..8f0d469 --- /dev/null +++ b/README @@ -0,0 +1,204 @@ +NAME + DBIx::Class::ResultSource::MultipleTableInheritance -- Use multiple + tables to define your classes + +SYNOPSIS + { + package MyApp::Schema::Result::Coffee; + + __PACKAGE__->table_class('DBIx::Class::ResultSource::MultipleTableInheritance'); + __PACKAGE__->table('coffee'); + __PACKAGE__->add_columns( + "id", + { + data_type => "integer", + default_value => "nextval('coffee_seq'::regclass)", + is_auto_increment => 1, + is_foreign_key => 1, + is_nullable => 0, + size => 4, + }, + "flavor", + { + data_type => "text", + default_value => "good", + }, + ); + + __PACKAGE__->set_primary_key("id"); + + 1; + } + + { + package MyApp::Schema::Result::Sumatra; + + use parent 'Coffee'; + + __PACKAGE__->table('sumatra'); + + __PACKAGE__->add_columns( + "aroma", + { + data_type => "text", + default_value => undef, + is_nullable => 0, + }, + ); + + 1; + } + + ... + + my $schema = MyApp::Schema->connect($dsn); + + my $cup = $schema->resultset('Sumatra')->new; + + print STDERR Dumper $cup->columns; + + $VAR1 = 'id'; + $VAR2 = 'flavor'; + $VAR3 = 'aroma'; + + Inherit from this package and you can make a resultset class from a + view, but that's more than a little bit misleading: the result is + writable and updateable--transparently. + + This is accomplished through the use of stored functions that map + changes written to the view to changes to the underlying concrete + tables. + +WHY? + In many applications, many classes are subclasses of others. Let's say + you have this schema: + + # Conceptual domain model + + class User { + has id, + has name, + has password + } + + class Investor { + has id, + has name, + has password, + has dollars + } + + That's redundant. Hold on a sec... + + class User { + has id, + has name, + has password + } + + class Investor isa User { + has dollars + } + + Good idea, but how to put this into code? + + One far-too common and absolutely horrendous solution is to have a + "checkbox" in your database: a nullable "investor" column, which entails + a nullable "dollars" column, in the user table. + + create table "user" ( + "id" integer not null primary key autoincrement, + "name" text not null, + "password" text not null, + "investor" tinyint(1), + "dollars" integer + ); + + Let's not discuss that further. + + A second, better, solution is to break out the two tables into user and + investor: + + create table "user" ( + "id" integer not null primary key autoincrement, + "name" text not null, + "password" text not null + ); + + create table "investor" ( + "id" integer not null references user("id"), + "dollars" integer + ); + + So that investor's PK is just an FK to the user. We can clearly see the + class hierarchy here, in which investor is a subclass of user. In + DBIx::Class applications, this second strategy looks like: + + my $user_rs = $schema->resultset('User'); + my $new_user = $user_rs->create( + name => $args->{name}, + password => $args->{password}, + ); + + ... + + my $new_investor = $schema->resultset('Investor')->create( + id => $new_user->id, + dollars => $args->{dollars}, + ); + + One can cope well with the second strategy, and it seems to be the most + popular smart choice. + +HOW? + There is a third strategy implemented here. Make the database do more of + the work. It'll save us some typing and it'll make for more expressive + code. What if we could do this: + + my $new_investor = $schema->resultset('Investor')->create( + name => $args->{name}, + password => $args->{password}, + dollars => $args->{dollars}, + ); + + And have it Just Work? The user ( {name => $args->{name}, password => + $args->{password} } ) should be created transparently, and the use of + either user or investor in your code should require no special handling. + Deleting and updating $new_investor should also delete or update the + user row. + + It does. User and investor are both views, their concrete tables + abstracted away behind a set of rules and triggers. You would expect the + above DBIC create statement to look like this in SQL: + + INSERT INTO investor ("name","password","dollars") VALUES (...); + + But using MTI, it is really this: + + INSERT INTO _user_table ("username","password") VALUES (...); + INSERT INTO _investor_table ("id","dollars") VALUES (currval('_user_table_id_seq',...) ); + + For deletes, the triggers fire in reverse, to preserve referential + integrity (foreign key constraints). For instance: + + my $investor = $schema->resultset('Investor')->find({id => $args->{id}}); + $investor->delete; + + Becomes: + + DELETE FROM _investor_table WHERE ("id" = ?); + DELETE FROM _user_table WHERE ("id" = ?); + +AUTHOR + Matt S. Trout, + + CONTRIBUTORS + Docs: Amiri Barksdale, + +LICENSE + This library is free software; you can redistribute it and/or modify it + under the same terms as Perl itself. + +SEE ALSO + DBIx::Class DBIx::Class::ResultSource + diff --git a/README.html b/README.html new file mode 100644 index 0000000..a25e75b --- /dev/null +++ b/README.html @@ -0,0 +1,229 @@ + + + + +DBIx::Class::ResultSource::MultipleTableInheritance -- Use multiple tables to define your classes + + + + + + + + +
+

+ + + +
+
+ + +

+

+
+

NAME

+

DBIx::Class::ResultSource::MultipleTableInheritance -- Use multiple tables to define your classes

+

+

+
+

SYNOPSIS

+
+    {
+        package MyApp::Schema::Result::Coffee;
+
+        __PACKAGE__->table_class('DBIx::Class::ResultSource::MultipleTableInheritance');
+        __PACKAGE__->table('coffee');
+        __PACKAGE__->add_columns(
+          "id",
+          {
+            data_type => "integer",
+            default_value => "nextval('coffee_seq'::regclass)",
+            is_auto_increment => 1,
+            is_foreign_key => 1,
+            is_nullable => 0,
+            size => 4,
+          },
+          "flavor",
+          {
+            data_type => "text",
+            default_value => "good",
+          },
+        );
+
+        __PACKAGE__->set_primary_key("id");
+
+        1;
+    }
+
+    {
+        package MyApp::Schema::Result::Sumatra;
+
+        use parent 'Coffee';
+
+        __PACKAGE__->table('sumatra');
+
+        __PACKAGE__->add_columns(
+          "aroma",
+          {
+            data_type => "text",
+            default_value => undef,
+            is_nullable => 0,
+          },
+        );
+
+        1;
+    }
+    
+    ...
+
+    my $schema = MyApp::Schema->connect($dsn);
+
+    my $cup = $schema->resultset('Sumatra')->new;
+
+    print STDERR Dumper $cup->columns;
+
+        $VAR1 = 'id';
+        $VAR2 = 'flavor';
+        $VAR3 = 'aroma';
+

Inherit from this package and you can make a resultset class from a view, but that's more than a little bit misleading: the result is writable and updateable--transparently.

+

This is accomplished through the use of stored functions that map changes written to the view to changes to the underlying concrete tables.

+

+

+
+

WHY?

+

In many applications, many classes are subclasses of others. Let's say you have this schema:

+
+    # Conceptual domain model
+    
+    class User {
+            has id,
+            has name,
+            has password
+    }
+
+    class Investor {
+        has id,
+        has name,
+        has password,
+        has dollars
+    }
+

That's redundant. Hold on a sec...

+
+    class User {
+            has id,
+            has name,
+            has password
+    }
+
+    class Investor isa User {
+        has dollars
+    }
+

Good idea, but how to put this into code?

+

One far-too common and absolutely horrendous solution is to have a "checkbox" in your database: a nullable "investor" column, which entails a nullable "dollars" column, in the user table.

+
+    create table "user" (
+        "id" integer not null primary key autoincrement,
+        "name" text not null,
+        "password" text not null,
+        "investor" tinyint(1),
+        "dollars" integer
+    );
+

Let's not discuss that further.

+

A second, better, solution is to break out the two tables into user and investor:

+
+    create table "user" (
+        "id" integer not null primary key autoincrement,
+        "name" text not null,
+        "password" text not null
+    );
+        
+    create table "investor" (
+        "id" integer not null references user("id"),
+        "dollars" integer
+    );
+

So that investor's PK is just an FK to the user. We can clearly see the class hierarchy here, in which investor is a subclass of user. In DBIx::Class applications, this second strategy looks like:

+
+
+    my $user_rs = $schema->resultset('User');
+    my $new_user = $user_rs->create(
+        name => $args->{name},
+        password => $args->{password},
+    );
+
+    ...
+
+    my $new_investor = $schema->resultset('Investor')->create(
+        id => $new_user->id,
+        dollars => $args->{dollars},
+    );
+

One can cope well with the second strategy, and it seems to be the most popular smart choice.

+

+

+
+

HOW?

+

There is a third strategy implemented here. Make the database do more of the work. It'll save us some typing and it'll make for more expressive code. What if we could do this:

+
+    my $new_investor = $schema->resultset('Investor')->create(
+        name => $args->{name},
+        password => $args->{password},
+        dollars => $args->{dollars},
+    );
+    
+And have it Just Work? The user ( {name => $args->{name}, password => $args->{password} } ) should be created transparently, and the use of either user or investor in your code should require no special handling. Deleting and updating $new_investor should also delete or update the user row.
+

It does. User and investor are both views, their concrete tables abstracted away behind a set of rules and triggers. You would expect the above DBIC create statement to look like this in SQL:

+
+    INSERT INTO investor ("name","password","dollars") VALUES (...);
+

But using MTI, it is really this:

+
+    INSERT INTO _user_table ("username","password") VALUES (...);
+    INSERT INTO _investor_table ("id","dollars") VALUES (currval('_user_table_id_seq',...) );
+

For deletes, the triggers fire in reverse, to preserve referential integrity (foreign key constraints). For instance:

+
+   my $investor = $schema->resultset('Investor')->find({id => $args->{id}});
+   $investor->delete;
+

Becomes:

+
+    DELETE FROM _investor_table WHERE ("id" = ?);
+    DELETE FROM _user_table WHERE ("id" = ?);
+

+

+

+
+

AUTHOR

+

Matt S. Trout, <mst@shadowcatsystems.co.uk>

+

+

+

CONTRIBUTORS

+

Docs: Amiri Barksdale, <amiri@metalabel.com>

+

+

+
+

LICENSE

+

This library is free software; you can redistribute it and/or modify +it under the same terms as Perl itself.

+

+

+
+

SEE ALSO

+

the DBIx::Class manpage +the DBIx::Class::ResultSource manpage

+ + + + diff --git a/inc/Module/AutoInstall.pm b/inc/Module/AutoInstall.pm new file mode 100644 index 0000000..32c2cf3 --- /dev/null +++ b/inc/Module/AutoInstall.pm @@ -0,0 +1,818 @@ +#line 1 +package Module::AutoInstall; + +use strict; +use Cwd (); +use ExtUtils::MakeMaker (); + +use vars qw{$VERSION}; +BEGIN { + $VERSION = '1.03'; +} + +# special map on pre-defined feature sets +my %FeatureMap = ( + '' => 'Core Features', # XXX: deprecated + '-core' => 'Core Features', +); + +# various lexical flags +my ( @Missing, @Existing, %DisabledTests, $UnderCPAN, $HasCPANPLUS ); +my ( + $Config, $CheckOnly, $SkipInstall, $AcceptDefault, $TestOnly, $AllDeps +); +my ( $PostambleActions, $PostambleUsed ); + +# See if it's a testing or non-interactive session +_accept_default( $ENV{AUTOMATED_TESTING} or ! -t STDIN ); +_init(); + +sub _accept_default { + $AcceptDefault = shift; +} + +sub missing_modules { + return @Missing; +} + +sub do_install { + __PACKAGE__->install( + [ + $Config + ? ( UNIVERSAL::isa( $Config, 'HASH' ) ? %{$Config} : @{$Config} ) + : () + ], + @Missing, + ); +} + +# initialize various flags, and/or perform install +sub _init { + foreach my $arg ( + @ARGV, + split( + /[\s\t]+/, + $ENV{PERL_AUTOINSTALL} || $ENV{PERL_EXTUTILS_AUTOINSTALL} || '' + ) + ) + { + if ( $arg =~ /^--config=(.*)$/ ) { + $Config = [ split( ',', $1 ) ]; + } + elsif ( $arg =~ /^--installdeps=(.*)$/ ) { + __PACKAGE__->install( $Config, @Missing = split( /,/, $1 ) ); + exit 0; + } + elsif ( $arg =~ /^--default(?:deps)?$/ ) { + $AcceptDefault = 1; + } + elsif ( $arg =~ /^--check(?:deps)?$/ ) { + $CheckOnly = 1; + } + elsif ( $arg =~ /^--skip(?:deps)?$/ ) { + $SkipInstall = 1; + } + elsif ( $arg =~ /^--test(?:only)?$/ ) { + $TestOnly = 1; + } + elsif ( $arg =~ /^--all(?:deps)?$/ ) { + $AllDeps = 1; + } + } +} + +# overrides MakeMaker's prompt() to automatically accept the default choice +sub _prompt { + goto &ExtUtils::MakeMaker::prompt unless $AcceptDefault; + + my ( $prompt, $default ) = @_; + my $y = ( $default =~ /^[Yy]/ ); + + print $prompt, ' [', ( $y ? 'Y' : 'y' ), '/', ( $y ? 'n' : 'N' ), '] '; + print "$default\n"; + return $default; +} + +# the workhorse +sub import { + my $class = shift; + my @args = @_ or return; + my $core_all; + + print "*** $class version " . $class->VERSION . "\n"; + print "*** Checking for Perl dependencies...\n"; + + my $cwd = Cwd::cwd(); + + $Config = []; + + my $maxlen = length( + ( + sort { length($b) <=> length($a) } + grep { /^[^\-]/ } + map { + ref($_) + ? ( ( ref($_) eq 'HASH' ) ? keys(%$_) : @{$_} ) + : '' + } + map { +{@args}->{$_} } + grep { /^[^\-]/ or /^-core$/i } keys %{ +{@args} } + )[0] + ); + + # We want to know if we're under CPAN early to avoid prompting, but + # if we aren't going to try and install anything anyway then skip the + # check entirely since we don't want to have to load (and configure) + # an old CPAN just for a cosmetic message + + $UnderCPAN = _check_lock(1) unless $SkipInstall; + + while ( my ( $feature, $modules ) = splice( @args, 0, 2 ) ) { + my ( @required, @tests, @skiptests ); + my $default = 1; + my $conflict = 0; + + if ( $feature =~ m/^-(\w+)$/ ) { + my $option = lc($1); + + # check for a newer version of myself + _update_to( $modules, @_ ) and return if $option eq 'version'; + + # sets CPAN configuration options + $Config = $modules if $option eq 'config'; + + # promote every features to core status + $core_all = ( $modules =~ /^all$/i ) and next + if $option eq 'core'; + + next unless $option eq 'core'; + } + + print "[" . ( $FeatureMap{ lc($feature) } || $feature ) . "]\n"; + + $modules = [ %{$modules} ] if UNIVERSAL::isa( $modules, 'HASH' ); + + unshift @$modules, -default => &{ shift(@$modules) } + if ( ref( $modules->[0] ) eq 'CODE' ); # XXX: bugward combatability + + while ( my ( $mod, $arg ) = splice( @$modules, 0, 2 ) ) { + if ( $mod =~ m/^-(\w+)$/ ) { + my $option = lc($1); + + $default = $arg if ( $option eq 'default' ); + $conflict = $arg if ( $option eq 'conflict' ); + @tests = @{$arg} if ( $option eq 'tests' ); + @skiptests = @{$arg} if ( $option eq 'skiptests' ); + + next; + } + + printf( "- %-${maxlen}s ...", $mod ); + + if ( $arg and $arg =~ /^\D/ ) { + unshift @$modules, $arg; + $arg = 0; + } + + # XXX: check for conflicts and uninstalls(!) them. + my $cur = _load($mod); + if (_version_cmp ($cur, $arg) >= 0) + { + print "loaded. ($cur" . ( $arg ? " >= $arg" : '' ) . ")\n"; + push @Existing, $mod => $arg; + $DisabledTests{$_} = 1 for map { glob($_) } @skiptests; + } + else { + if (not defined $cur) # indeed missing + { + print "missing." . ( $arg ? " (would need $arg)" : '' ) . "\n"; + } + else + { + # no need to check $arg as _version_cmp ($cur, undef) would satisfy >= above + print "too old. ($cur < $arg)\n"; + } + + push @required, $mod => $arg; + } + } + + next unless @required; + + my $mandatory = ( $feature eq '-core' or $core_all ); + + if ( + !$SkipInstall + and ( + $CheckOnly + or ($mandatory and $UnderCPAN) + or $AllDeps + or _prompt( + qq{==> Auto-install the } + . ( @required / 2 ) + . ( $mandatory ? ' mandatory' : ' optional' ) + . qq{ module(s) from CPAN?}, + $default ? 'y' : 'n', + ) =~ /^[Yy]/ + ) + ) + { + push( @Missing, @required ); + $DisabledTests{$_} = 1 for map { glob($_) } @skiptests; + } + + elsif ( !$SkipInstall + and $default + and $mandatory + and + _prompt( qq{==> The module(s) are mandatory! Really skip?}, 'n', ) + =~ /^[Nn]/ ) + { + push( @Missing, @required ); + $DisabledTests{$_} = 1 for map { glob($_) } @skiptests; + } + + else { + $DisabledTests{$_} = 1 for map { glob($_) } @tests; + } + } + + if ( @Missing and not( $CheckOnly or $UnderCPAN ) ) { + require Config; + print +"*** Dependencies will be installed the next time you type '$Config::Config{make}'.\n"; + + # make an educated guess of whether we'll need root permission. + print " (You may need to do that as the 'root' user.)\n" + if eval '$>'; + } + print "*** $class configuration finished.\n"; + + chdir $cwd; + + # import to main:: + no strict 'refs'; + *{'main::WriteMakefile'} = \&Write if caller(0) eq 'main'; +} + +sub _running_under { + my $thing = shift; + print <<"END_MESSAGE"; +*** Since we're running under ${thing}, I'll just let it take care + of the dependency's installation later. +END_MESSAGE + return 1; +} + +# Check to see if we are currently running under CPAN.pm and/or CPANPLUS; +# if we are, then we simply let it taking care of our dependencies +sub _check_lock { + return unless @Missing or @_; + + my $cpan_env = $ENV{PERL5_CPAN_IS_RUNNING}; + + if ($ENV{PERL5_CPANPLUS_IS_RUNNING}) { + return _running_under($cpan_env ? 'CPAN' : 'CPANPLUS'); + } + + require CPAN; + + if ($CPAN::VERSION > '1.89') { + if ($cpan_env) { + return _running_under('CPAN'); + } + return; # CPAN.pm new enough, don't need to check further + } + + # last ditch attempt, this -will- configure CPAN, very sorry + + _load_cpan(1); # force initialize even though it's already loaded + + # Find the CPAN lock-file + my $lock = MM->catfile( $CPAN::Config->{cpan_home}, ".lock" ); + return unless -f $lock; + + # Check the lock + local *LOCK; + return unless open(LOCK, $lock); + + if ( + ( $^O eq 'MSWin32' ? _under_cpan() : == getppid() ) + and ( $CPAN::Config->{prerequisites_policy} || '' ) ne 'ignore' + ) { + print <<'END_MESSAGE'; + +*** Since we're running under CPAN, I'll just let it take care + of the dependency's installation later. +END_MESSAGE + return 1; + } + + close LOCK; + return; +} + +sub install { + my $class = shift; + + my $i; # used below to strip leading '-' from config keys + my @config = ( map { s/^-// if ++$i; $_ } @{ +shift } ); + + my ( @modules, @installed ); + while ( my ( $pkg, $ver ) = splice( @_, 0, 2 ) ) { + + # grep out those already installed + if ( _version_cmp( _load($pkg), $ver ) >= 0 ) { + push @installed, $pkg; + } + else { + push @modules, $pkg, $ver; + } + } + + return @installed unless @modules; # nothing to do + return @installed if _check_lock(); # defer to the CPAN shell + + print "*** Installing dependencies...\n"; + + return unless _connected_to('cpan.org'); + + my %args = @config; + my %failed; + local *FAILED; + if ( $args{do_once} and open( FAILED, '.#autoinstall.failed' ) ) { + while () { chomp; $failed{$_}++ } + close FAILED; + + my @newmod; + while ( my ( $k, $v ) = splice( @modules, 0, 2 ) ) { + push @newmod, ( $k => $v ) unless $failed{$k}; + } + @modules = @newmod; + } + + if ( _has_cpanplus() and not $ENV{PERL_AUTOINSTALL_PREFER_CPAN} ) { + _install_cpanplus( \@modules, \@config ); + } else { + _install_cpan( \@modules, \@config ); + } + + print "*** $class installation finished.\n"; + + # see if we have successfully installed them + while ( my ( $pkg, $ver ) = splice( @modules, 0, 2 ) ) { + if ( _version_cmp( _load($pkg), $ver ) >= 0 ) { + push @installed, $pkg; + } + elsif ( $args{do_once} and open( FAILED, '>> .#autoinstall.failed' ) ) { + print FAILED "$pkg\n"; + } + } + + close FAILED if $args{do_once}; + + return @installed; +} + +sub _install_cpanplus { + my @modules = @{ +shift }; + my @config = _cpanplus_config( @{ +shift } ); + my $installed = 0; + + require CPANPLUS::Backend; + my $cp = CPANPLUS::Backend->new; + my $conf = $cp->configure_object; + + return unless $conf->can('conf') # 0.05x+ with "sudo" support + or _can_write($conf->_get_build('base')); # 0.04x + + # if we're root, set UNINST=1 to avoid trouble unless user asked for it. + my $makeflags = $conf->get_conf('makeflags') || ''; + if ( UNIVERSAL::isa( $makeflags, 'HASH' ) ) { + # 0.03+ uses a hashref here + $makeflags->{UNINST} = 1 unless exists $makeflags->{UNINST}; + + } else { + # 0.02 and below uses a scalar + $makeflags = join( ' ', split( ' ', $makeflags ), 'UNINST=1' ) + if ( $makeflags !~ /\bUNINST\b/ and eval qq{ $> eq '0' } ); + + } + $conf->set_conf( makeflags => $makeflags ); + $conf->set_conf( prereqs => 1 ); + + + + while ( my ( $key, $val ) = splice( @config, 0, 2 ) ) { + $conf->set_conf( $key, $val ); + } + + my $modtree = $cp->module_tree; + while ( my ( $pkg, $ver ) = splice( @modules, 0, 2 ) ) { + print "*** Installing $pkg...\n"; + + MY::preinstall( $pkg, $ver ) or next if defined &MY::preinstall; + + my $success; + my $obj = $modtree->{$pkg}; + + if ( $obj and _version_cmp( $obj->{version}, $ver ) >= 0 ) { + my $pathname = $pkg; + $pathname =~ s/::/\\W/; + + foreach my $inc ( grep { m/$pathname.pm/i } keys(%INC) ) { + delete $INC{$inc}; + } + + my $rv = $cp->install( modules => [ $obj->{module} ] ); + + if ( $rv and ( $rv->{ $obj->{module} } or $rv->{ok} ) ) { + print "*** $pkg successfully installed.\n"; + $success = 1; + } else { + print "*** $pkg installation cancelled.\n"; + $success = 0; + } + + $installed += $success; + } else { + print << "."; +*** Could not find a version $ver or above for $pkg; skipping. +. + } + + MY::postinstall( $pkg, $ver, $success ) if defined &MY::postinstall; + } + + return $installed; +} + +sub _cpanplus_config { + my @config = (); + while ( @_ ) { + my ($key, $value) = (shift(), shift()); + if ( $key eq 'prerequisites_policy' ) { + if ( $value eq 'follow' ) { + $value = CPANPLUS::Internals::Constants::PREREQ_INSTALL(); + } elsif ( $value eq 'ask' ) { + $value = CPANPLUS::Internals::Constants::PREREQ_ASK(); + } elsif ( $value eq 'ignore' ) { + $value = CPANPLUS::Internals::Constants::PREREQ_IGNORE(); + } else { + die "*** Cannot convert option $key = '$value' to CPANPLUS version.\n"; + } + } else { + die "*** Cannot convert option $key to CPANPLUS version.\n"; + } + } + return @config; +} + +sub _install_cpan { + my @modules = @{ +shift }; + my @config = @{ +shift }; + my $installed = 0; + my %args; + + _load_cpan(); + require Config; + + if (CPAN->VERSION < 1.80) { + # no "sudo" support, probe for writableness + return unless _can_write( MM->catfile( $CPAN::Config->{cpan_home}, 'sources' ) ) + and _can_write( $Config::Config{sitelib} ); + } + + # if we're root, set UNINST=1 to avoid trouble unless user asked for it. + my $makeflags = $CPAN::Config->{make_install_arg} || ''; + $CPAN::Config->{make_install_arg} = + join( ' ', split( ' ', $makeflags ), 'UNINST=1' ) + if ( $makeflags !~ /\bUNINST\b/ and eval qq{ $> eq '0' } ); + + # don't show start-up info + $CPAN::Config->{inhibit_startup_message} = 1; + + # set additional options + while ( my ( $opt, $arg ) = splice( @config, 0, 2 ) ) { + ( $args{$opt} = $arg, next ) + if $opt =~ /^force$/; # pseudo-option + $CPAN::Config->{$opt} = $arg; + } + + local $CPAN::Config->{prerequisites_policy} = 'follow'; + + while ( my ( $pkg, $ver ) = splice( @modules, 0, 2 ) ) { + MY::preinstall( $pkg, $ver ) or next if defined &MY::preinstall; + + print "*** Installing $pkg...\n"; + + my $obj = CPAN::Shell->expand( Module => $pkg ); + my $success = 0; + + if ( $obj and _version_cmp( $obj->cpan_version, $ver ) >= 0 ) { + my $pathname = $pkg; + $pathname =~ s/::/\\W/; + + foreach my $inc ( grep { m/$pathname.pm/i } keys(%INC) ) { + delete $INC{$inc}; + } + + my $rv = $args{force} ? CPAN::Shell->force( install => $pkg ) + : CPAN::Shell->install($pkg); + $rv ||= eval { + $CPAN::META->instance( 'CPAN::Distribution', $obj->cpan_file, ) + ->{install} + if $CPAN::META; + }; + + if ( $rv eq 'YES' ) { + print "*** $pkg successfully installed.\n"; + $success = 1; + } + else { + print "*** $pkg installation failed.\n"; + $success = 0; + } + + $installed += $success; + } + else { + print << "."; +*** Could not find a version $ver or above for $pkg; skipping. +. + } + + MY::postinstall( $pkg, $ver, $success ) if defined &MY::postinstall; + } + + return $installed; +} + +sub _has_cpanplus { + return ( + $HasCPANPLUS = ( + $INC{'CPANPLUS/Config.pm'} + or _load('CPANPLUS::Shell::Default') + ) + ); +} + +# make guesses on whether we're under the CPAN installation directory +sub _under_cpan { + require Cwd; + require File::Spec; + + my $cwd = File::Spec->canonpath( Cwd::cwd() ); + my $cpan = File::Spec->canonpath( $CPAN::Config->{cpan_home} ); + + return ( index( $cwd, $cpan ) > -1 ); +} + +sub _update_to { + my $class = __PACKAGE__; + my $ver = shift; + + return + if _version_cmp( _load($class), $ver ) >= 0; # no need to upgrade + + if ( + _prompt( "==> A newer version of $class ($ver) is required. Install?", + 'y' ) =~ /^[Nn]/ + ) + { + die "*** Please install $class $ver manually.\n"; + } + + print << "."; +*** Trying to fetch it from CPAN... +. + + # install ourselves + _load($class) and return $class->import(@_) + if $class->install( [], $class, $ver ); + + print << '.'; exit 1; + +*** Cannot bootstrap myself. :-( Installation terminated. +. +} + +# check if we're connected to some host, using inet_aton +sub _connected_to { + my $site = shift; + + return ( + ( _load('Socket') and Socket::inet_aton($site) ) or _prompt( + qq( +*** Your host cannot resolve the domain name '$site', which + probably means the Internet connections are unavailable. +==> Should we try to install the required module(s) anyway?), 'n' + ) =~ /^[Yy]/ + ); +} + +# check if a directory is writable; may create it on demand +sub _can_write { + my $path = shift; + mkdir( $path, 0755 ) unless -e $path; + + return 1 if -w $path; + + print << "."; +*** You are not allowed to write to the directory '$path'; + the installation may fail due to insufficient permissions. +. + + if ( + eval '$>' and lc(`sudo -V`) =~ /version/ and _prompt( + qq( +==> Should we try to re-execute the autoinstall process with 'sudo'?), + ((-t STDIN) ? 'y' : 'n') + ) =~ /^[Yy]/ + ) + { + + # try to bootstrap ourselves from sudo + print << "."; +*** Trying to re-execute the autoinstall process with 'sudo'... +. + my $missing = join( ',', @Missing ); + my $config = join( ',', + UNIVERSAL::isa( $Config, 'HASH' ) ? %{$Config} : @{$Config} ) + if $Config; + + return + unless system( 'sudo', $^X, $0, "--config=$config", + "--installdeps=$missing" ); + + print << "."; +*** The 'sudo' command exited with error! Resuming... +. + } + + return _prompt( + qq( +==> Should we try to install the required module(s) anyway?), 'n' + ) =~ /^[Yy]/; +} + +# load a module and return the version it reports +sub _load { + my $mod = pop; # class/instance doesn't matter + my $file = $mod; + + $file =~ s|::|/|g; + $file .= '.pm'; + + local $@; + return eval { require $file; $mod->VERSION } || ( $@ ? undef: 0 ); +} + +# Load CPAN.pm and it's configuration +sub _load_cpan { + return if $CPAN::VERSION and $CPAN::Config and not @_; + require CPAN; + + # CPAN-1.82+ adds CPAN::Config::AUTOLOAD to redirect to + # CPAN::HandleConfig->load. CPAN reports that the redirection + # is deprecated in a warning printed at the user. + + # CPAN-1.81 expects CPAN::HandleConfig->load, does not have + # $CPAN::HandleConfig::VERSION but cannot handle + # CPAN::Config->load + + # Which "versions expect CPAN::Config->load? + + if ( $CPAN::HandleConfig::VERSION + || CPAN::HandleConfig->can('load') + ) { + # Newer versions of CPAN have a HandleConfig module + CPAN::HandleConfig->load; + } else { + # Older versions had the load method in Config directly + CPAN::Config->load; + } +} + +# compare two versions, either use Sort::Versions or plain comparison +# return values same as <=> +sub _version_cmp { + my ( $cur, $min ) = @_; + return -1 unless defined $cur; # if 0 keep comparing + return 1 unless $min; + + $cur =~ s/\s+$//; + + # check for version numbers that are not in decimal format + if ( ref($cur) or ref($min) or $cur =~ /v|\..*\./ or $min =~ /v|\..*\./ ) { + if ( ( $version::VERSION or defined( _load('version') )) and + version->can('new') + ) { + + # use version.pm if it is installed. + return version->new($cur) <=> version->new($min); + } + elsif ( $Sort::Versions::VERSION or defined( _load('Sort::Versions') ) ) + { + + # use Sort::Versions as the sorting algorithm for a.b.c versions + return Sort::Versions::versioncmp( $cur, $min ); + } + + warn "Cannot reliably compare non-decimal formatted versions.\n" + . "Please install version.pm or Sort::Versions.\n"; + } + + # plain comparison + local $^W = 0; # shuts off 'not numeric' bugs + return $cur <=> $min; +} + +# nothing; this usage is deprecated. +sub main::PREREQ_PM { return {}; } + +sub _make_args { + my %args = @_; + + $args{PREREQ_PM} = { %{ $args{PREREQ_PM} || {} }, @Existing, @Missing } + if $UnderCPAN or $TestOnly; + + if ( $args{EXE_FILES} and -e 'MANIFEST' ) { + require ExtUtils::Manifest; + my $manifest = ExtUtils::Manifest::maniread('MANIFEST'); + + $args{EXE_FILES} = + [ grep { exists $manifest->{$_} } @{ $args{EXE_FILES} } ]; + } + + $args{test}{TESTS} ||= 't/*.t'; + $args{test}{TESTS} = join( ' ', + grep { !exists( $DisabledTests{$_} ) } + map { glob($_) } split( /\s+/, $args{test}{TESTS} ) ); + + my $missing = join( ',', @Missing ); + my $config = + join( ',', UNIVERSAL::isa( $Config, 'HASH' ) ? %{$Config} : @{$Config} ) + if $Config; + + $PostambleActions = ( + ($missing and not $UnderCPAN) + ? "\$(PERL) $0 --config=$config --installdeps=$missing" + : "\$(NOECHO) \$(NOOP)" + ); + + return %args; +} + +# a wrapper to ExtUtils::MakeMaker::WriteMakefile +sub Write { + require Carp; + Carp::croak "WriteMakefile: Need even number of args" if @_ % 2; + + if ($CheckOnly) { + print << "."; +*** Makefile not written in check-only mode. +. + return; + } + + my %args = _make_args(@_); + + no strict 'refs'; + + $PostambleUsed = 0; + local *MY::postamble = \&postamble unless defined &MY::postamble; + ExtUtils::MakeMaker::WriteMakefile(%args); + + print << "." unless $PostambleUsed; +*** WARNING: Makefile written with customized MY::postamble() without + including contents from Module::AutoInstall::postamble() -- + auto installation features disabled. Please contact the author. +. + + return 1; +} + +sub postamble { + $PostambleUsed = 1; + + return <<"END_MAKE"; + +config :: installdeps +\t\$(NOECHO) \$(NOOP) + +checkdeps :: +\t\$(PERL) $0 --checkdeps + +installdeps :: +\t$PostambleActions + +END_MAKE + +} + +1; + +__END__ + +#line 1069 diff --git a/inc/Module/Install.pm b/inc/Module/Install.pm new file mode 100644 index 0000000..bc055a9 --- /dev/null +++ b/inc/Module/Install.pm @@ -0,0 +1,441 @@ +#line 1 +package Module::Install; + +# For any maintainers: +# The load order for Module::Install is a bit magic. +# It goes something like this... +# +# IF ( host has Module::Install installed, creating author mode ) { +# 1. Makefile.PL calls "use inc::Module::Install" +# 2. $INC{inc/Module/Install.pm} set to installed version of inc::Module::Install +# 3. The installed version of inc::Module::Install loads +# 4. inc::Module::Install calls "require Module::Install" +# 5. The ./inc/ version of Module::Install loads +# } ELSE { +# 1. Makefile.PL calls "use inc::Module::Install" +# 2. $INC{inc/Module/Install.pm} set to ./inc/ version of Module::Install +# 3. The ./inc/ version of Module::Install loads +# } + +use 5.005; +use strict 'vars'; +use Cwd (); +use File::Find (); +use File::Path (); +use FindBin; + +use vars qw{$VERSION $MAIN}; +BEGIN { + # All Module::Install core packages now require synchronised versions. + # This will be used to ensure we don't accidentally load old or + # different versions of modules. + # This is not enforced yet, but will be some time in the next few + # releases once we can make sure it won't clash with custom + # Module::Install extensions. + $VERSION = '0.95'; + + # Storage for the pseudo-singleton + $MAIN = undef; + + *inc::Module::Install::VERSION = *VERSION; + @inc::Module::Install::ISA = __PACKAGE__; + +} + +sub import { + my $class = shift; + my $self = $class->new(@_); + my $who = $self->_caller; + + #------------------------------------------------------------- + # all of the following checks should be included in import(), + # to allow "eval 'require Module::Install; 1' to test + # installation of Module::Install. (RT #51267) + #------------------------------------------------------------- + + # Whether or not inc::Module::Install is actually loaded, the + # $INC{inc/Module/Install.pm} is what will still get set as long as + # the caller loaded module this in the documented manner. + # If not set, the caller may NOT have loaded the bundled version, and thus + # they may not have a MI version that works with the Makefile.PL. This would + # result in false errors or unexpected behaviour. And we don't want that. + my $file = join( '/', 'inc', split /::/, __PACKAGE__ ) . '.pm'; + unless ( $INC{$file} ) { die <<"END_DIE" } + +Please invoke ${\__PACKAGE__} with: + + use inc::${\__PACKAGE__}; + +not: + + use ${\__PACKAGE__}; + +END_DIE + + # This reportedly fixes a rare Win32 UTC file time issue, but + # as this is a non-cross-platform XS module not in the core, + # we shouldn't really depend on it. See RT #24194 for detail. + # (Also, this module only supports Perl 5.6 and above). + eval "use Win32::UTCFileTime" if $^O eq 'MSWin32' && $] >= 5.006; + + # If the script that is loading Module::Install is from the future, + # then make will detect this and cause it to re-run over and over + # again. This is bad. Rather than taking action to touch it (which + # is unreliable on some platforms and requires write permissions) + # for now we should catch this and refuse to run. + if ( -f $0 ) { + my $s = (stat($0))[9]; + + # If the modification time is only slightly in the future, + # sleep briefly to remove the problem. + my $a = $s - time; + if ( $a > 0 and $a < 5 ) { sleep 5 } + + # Too far in the future, throw an error. + my $t = time; + if ( $s > $t ) { die <<"END_DIE" } + +Your installer $0 has a modification time in the future ($s > $t). + +This is known to create infinite loops in make. + +Please correct this, then run $0 again. + +END_DIE + } + + + # Build.PL was formerly supported, but no longer is due to excessive + # difficulty in implementing every single feature twice. + if ( $0 =~ /Build.PL$/i ) { die <<"END_DIE" } + +Module::Install no longer supports Build.PL. + +It was impossible to maintain duel backends, and has been deprecated. + +Please remove all Build.PL files and only use the Makefile.PL installer. + +END_DIE + + #------------------------------------------------------------- + + # To save some more typing in Module::Install installers, every... + # use inc::Module::Install + # ...also acts as an implicit use strict. + $^H |= strict::bits(qw(refs subs vars)); + + #------------------------------------------------------------- + + unless ( -f $self->{file} ) { + require "$self->{path}/$self->{dispatch}.pm"; + File::Path::mkpath("$self->{prefix}/$self->{author}"); + $self->{admin} = "$self->{name}::$self->{dispatch}"->new( _top => $self ); + $self->{admin}->init; + @_ = ($class, _self => $self); + goto &{"$self->{name}::import"}; + } + + *{"${who}::AUTOLOAD"} = $self->autoload; + $self->preload; + + # Unregister loader and worker packages so subdirs can use them again + delete $INC{"$self->{file}"}; + delete $INC{"$self->{path}.pm"}; + + # Save to the singleton + $MAIN = $self; + + return 1; +} + +sub autoload { + my $self = shift; + my $who = $self->_caller; + my $cwd = Cwd::cwd(); + my $sym = "${who}::AUTOLOAD"; + $sym->{$cwd} = sub { + my $pwd = Cwd::cwd(); + if ( my $code = $sym->{$pwd} ) { + # Delegate back to parent dirs + goto &$code unless $cwd eq $pwd; + } + $$sym =~ /([^:]+)$/ or die "Cannot autoload $who - $sym"; + my $method = $1; + if ( uc($method) eq $method ) { + # Do nothing + return; + } elsif ( $method =~ /^_/ and $self->can($method) ) { + # Dispatch to the root M:I class + return $self->$method(@_); + } + + # Dispatch to the appropriate plugin + unshift @_, ( $self, $1 ); + goto &{$self->can('call')}; + }; +} + +sub preload { + my $self = shift; + unless ( $self->{extensions} ) { + $self->load_extensions( + "$self->{prefix}/$self->{path}", $self + ); + } + + my @exts = @{$self->{extensions}}; + unless ( @exts ) { + @exts = $self->{admin}->load_all_extensions; + } + + my %seen; + foreach my $obj ( @exts ) { + while (my ($method, $glob) = each %{ref($obj) . '::'}) { + next unless $obj->can($method); + next if $method =~ /^_/; + next if $method eq uc($method); + $seen{$method}++; + } + } + + my $who = $self->_caller; + foreach my $name ( sort keys %seen ) { + *{"${who}::$name"} = sub { + ${"${who}::AUTOLOAD"} = "${who}::$name"; + goto &{"${who}::AUTOLOAD"}; + }; + } +} + +sub new { + my ($class, %args) = @_; + + # ignore the prefix on extension modules built from top level. + my $base_path = Cwd::abs_path($FindBin::Bin); + unless ( Cwd::abs_path(Cwd::cwd()) eq $base_path ) { + delete $args{prefix}; + } + + return $args{_self} if $args{_self}; + + $args{dispatch} ||= 'Admin'; + $args{prefix} ||= 'inc'; + $args{author} ||= ($^O eq 'VMS' ? '_author' : '.author'); + $args{bundle} ||= 'inc/BUNDLES'; + $args{base} ||= $base_path; + $class =~ s/^\Q$args{prefix}\E:://; + $args{name} ||= $class; + $args{version} ||= $class->VERSION; + unless ( $args{path} ) { + $args{path} = $args{name}; + $args{path} =~ s!::!/!g; + } + $args{file} ||= "$args{base}/$args{prefix}/$args{path}.pm"; + $args{wrote} = 0; + + bless( \%args, $class ); +} + +sub call { + my ($self, $method) = @_; + my $obj = $self->load($method) or return; + splice(@_, 0, 2, $obj); + goto &{$obj->can($method)}; +} + +sub load { + my ($self, $method) = @_; + + $self->load_extensions( + "$self->{prefix}/$self->{path}", $self + ) unless $self->{extensions}; + + foreach my $obj (@{$self->{extensions}}) { + return $obj if $obj->can($method); + } + + my $admin = $self->{admin} or die <<"END_DIE"; +The '$method' method does not exist in the '$self->{prefix}' path! +Please remove the '$self->{prefix}' directory and run $0 again to load it. +END_DIE + + my $obj = $admin->load($method, 1); + push @{$self->{extensions}}, $obj; + + $obj; +} + +sub load_extensions { + my ($self, $path, $top) = @_; + + unless ( grep { ! ref $_ and lc $_ eq lc $self->{prefix} } @INC ) { + unshift @INC, $self->{prefix}; + } + + foreach my $rv ( $self->find_extensions($path) ) { + my ($file, $pkg) = @{$rv}; + next if $self->{pathnames}{$pkg}; + + local $@; + my $new = eval { require $file; $pkg->can('new') }; + unless ( $new ) { + warn $@ if $@; + next; + } + $self->{pathnames}{$pkg} = delete $INC{$file}; + push @{$self->{extensions}}, &{$new}($pkg, _top => $top ); + } + + $self->{extensions} ||= []; +} + +sub find_extensions { + my ($self, $path) = @_; + + my @found; + File::Find::find( sub { + my $file = $File::Find::name; + return unless $file =~ m!^\Q$path\E/(.+)\.pm\Z!is; + my $subpath = $1; + return if lc($subpath) eq lc($self->{dispatch}); + + $file = "$self->{path}/$subpath.pm"; + my $pkg = "$self->{name}::$subpath"; + $pkg =~ s!/!::!g; + + # If we have a mixed-case package name, assume case has been preserved + # correctly. Otherwise, root through the file to locate the case-preserved + # version of the package name. + if ( $subpath eq lc($subpath) || $subpath eq uc($subpath) ) { + my $content = Module::Install::_read($subpath . '.pm'); + my $in_pod = 0; + foreach ( split //, $content ) { + $in_pod = 1 if /^=\w/; + $in_pod = 0 if /^=cut/; + next if ($in_pod || /^=cut/); # skip pod text + next if /^\s*#/; # and comments + if ( m/^\s*package\s+($pkg)\s*;/i ) { + $pkg = $1; + last; + } + } + } + + push @found, [ $file, $pkg ]; + }, $path ) if -d $path; + + @found; +} + + + + + +##################################################################### +# Common Utility Functions + +sub _caller { + my $depth = 0; + my $call = caller($depth); + while ( $call eq __PACKAGE__ ) { + $depth++; + $call = caller($depth); + } + return $call; +} + +# Done in evals to avoid confusing Perl::MinimumVersion +eval( $] >= 5.006 ? <<'END_NEW' : <<'END_OLD' ); die $@ if $@; +sub _read { + local *FH; + open( FH, '<', $_[0] ) or die "open($_[0]): $!"; + my $string = do { local $/; }; + close FH or die "close($_[0]): $!"; + return $string; +} +END_NEW +sub _read { + local *FH; + open( FH, "< $_[0]" ) or die "open($_[0]): $!"; + my $string = do { local $/; }; + close FH or die "close($_[0]): $!"; + return $string; +} +END_OLD + +sub _readperl { + my $string = Module::Install::_read($_[0]); + $string =~ s/(?:\015{1,2}\012|\015|\012)/\n/sg; + $string =~ s/(\n)\n*__(?:DATA|END)__\b.*\z/$1/s; + $string =~ s/\n\n=\w+.+?\n\n=cut\b.+?\n+/\n\n/sg; + return $string; +} + +sub _readpod { + my $string = Module::Install::_read($_[0]); + $string =~ s/(?:\015{1,2}\012|\015|\012)/\n/sg; + return $string if $_[0] =~ /\.pod\z/; + $string =~ s/(^|\n=cut\b.+?\n+)[^=\s].+?\n(\n=\w+|\z)/$1$2/sg; + $string =~ s/\n*=pod\b[^\n]*\n+/\n\n/sg; + $string =~ s/\n*=cut\b[^\n]*\n+/\n\n/sg; + $string =~ s/^\n+//s; + return $string; +} + +# Done in evals to avoid confusing Perl::MinimumVersion +eval( $] >= 5.006 ? <<'END_NEW' : <<'END_OLD' ); die $@ if $@; +sub _write { + local *FH; + open( FH, '>', $_[0] ) or die "open($_[0]): $!"; + foreach ( 1 .. $#_ ) { + print FH $_[$_] or die "print($_[0]): $!"; + } + close FH or die "close($_[0]): $!"; +} +END_NEW +sub _write { + local *FH; + open( FH, "> $_[0]" ) or die "open($_[0]): $!"; + foreach ( 1 .. $#_ ) { + print FH $_[$_] or die "print($_[0]): $!"; + } + close FH or die "close($_[0]): $!"; +} +END_OLD + +# _version is for processing module versions (eg, 1.03_05) not +# Perl versions (eg, 5.8.1). +sub _version ($) { + my $s = shift || 0; + my $d =()= $s =~ /(\.)/g; + if ( $d >= 2 ) { + # Normalise multipart versions + $s =~ s/(\.)(\d{1,3})/sprintf("$1%03d",$2)/eg; + } + $s =~ s/^(\d+)\.?//; + my $l = $1 || 0; + my @v = map { + $_ . '0' x (3 - length $_) + } $s =~ /(\d{1,3})\D?/g; + $l = $l . '.' . join '', @v if @v; + return $l + 0; +} + +sub _cmp ($$) { + _version($_[0]) <=> _version($_[1]); +} + +# Cloned from Params::Util::_CLASS +sub _CLASS ($) { + ( + defined $_[0] + and + ! ref $_[0] + and + $_[0] =~ m/^[^\W\d]\w*(?:::\w+)*\z/s + ) ? $_[0] : undef; +} + +1; + +# Copyright 2008 - 2010 Adam Kennedy. diff --git a/inc/Module/Install/AutoInstall.pm b/inc/Module/Install/AutoInstall.pm new file mode 100644 index 0000000..7d8ce35 --- /dev/null +++ b/inc/Module/Install/AutoInstall.pm @@ -0,0 +1,61 @@ +#line 1 +package Module::Install::AutoInstall; + +use strict; +use Module::Install::Base (); + +use vars qw{$VERSION @ISA $ISCORE}; +BEGIN { + $VERSION = '0.95'; + @ISA = 'Module::Install::Base'; + $ISCORE = 1; +} + +sub AutoInstall { $_[0] } + +sub run { + my $self = shift; + $self->auto_install_now(@_); +} + +sub write { + my $self = shift; + $self->auto_install(@_); +} + +sub auto_install { + my $self = shift; + return if $self->{done}++; + + # Flatten array of arrays into a single array + my @core = map @$_, map @$_, grep ref, + $self->build_requires, $self->requires; + + my @config = @_; + + # We'll need Module::AutoInstall + $self->include('Module::AutoInstall'); + require Module::AutoInstall; + + Module::AutoInstall->import( + (@config ? (-config => \@config) : ()), + (@core ? (-core => \@core) : ()), + $self->features, + ); + + $self->makemaker_args( Module::AutoInstall::_make_args() ); + + my $class = ref($self); + $self->postamble( + "# --- $class section:\n" . + Module::AutoInstall::postamble() + ); +} + +sub auto_install_now { + my $self = shift; + $self->auto_install(@_); + Module::AutoInstall::do_install(); +} + +1; diff --git a/inc/Module/Install/Base.pm b/inc/Module/Install/Base.pm new file mode 100644 index 0000000..4224c4d --- /dev/null +++ b/inc/Module/Install/Base.pm @@ -0,0 +1,78 @@ +#line 1 +package Module::Install::Base; + +use strict 'vars'; +use vars qw{$VERSION}; +BEGIN { + $VERSION = '0.95'; +} + +# Suspend handler for "redefined" warnings +BEGIN { + my $w = $SIG{__WARN__}; + $SIG{__WARN__} = sub { $w }; +} + +#line 42 + +sub new { + my $class = shift; + unless ( defined &{"${class}::call"} ) { + *{"${class}::call"} = sub { shift->_top->call(@_) }; + } + unless ( defined &{"${class}::load"} ) { + *{"${class}::load"} = sub { shift->_top->load(@_) }; + } + bless { @_ }, $class; +} + +#line 61 + +sub AUTOLOAD { + local $@; + my $func = eval { shift->_top->autoload } or return; + goto &$func; +} + +#line 75 + +sub _top { + $_[0]->{_top}; +} + +#line 90 + +sub admin { + $_[0]->_top->{admin} + or + Module::Install::Base::FakeAdmin->new; +} + +#line 106 + +sub is_admin { + $_[0]->admin->VERSION; +} + +sub DESTROY {} + +package Module::Install::Base::FakeAdmin; + +my $fake; + +sub new { + $fake ||= bless(\@_, $_[0]); +} + +sub AUTOLOAD {} + +sub DESTROY {} + +# Restore warning handler +BEGIN { + $SIG{__WARN__} = $SIG{__WARN__}->(); +} + +1; + +#line 154 diff --git a/inc/Module/Install/Can.pm b/inc/Module/Install/Can.pm new file mode 100644 index 0000000..c9f91d1 --- /dev/null +++ b/inc/Module/Install/Can.pm @@ -0,0 +1,81 @@ +#line 1 +package Module::Install::Can; + +use strict; +use Config (); +use File::Spec (); +use ExtUtils::MakeMaker (); +use Module::Install::Base (); + +use vars qw{$VERSION @ISA $ISCORE}; +BEGIN { + $VERSION = '0.95'; + @ISA = 'Module::Install::Base'; + $ISCORE = 1; +} + +# check if we can load some module +### Upgrade this to not have to load the module if possible +sub can_use { + my ($self, $mod, $ver) = @_; + $mod =~ s{::|\\}{/}g; + $mod .= '.pm' unless $mod =~ /\.pm$/i; + + my $pkg = $mod; + $pkg =~ s{/}{::}g; + $pkg =~ s{\.pm$}{}i; + + local $@; + eval { require $mod; $pkg->VERSION($ver || 0); 1 }; +} + +# check if we can run some command +sub can_run { + my ($self, $cmd) = @_; + + my $_cmd = $cmd; + return $_cmd if (-x $_cmd or $_cmd = MM->maybe_command($_cmd)); + + for my $dir ((split /$Config::Config{path_sep}/, $ENV{PATH}), '.') { + next if $dir eq ''; + my $abs = File::Spec->catfile($dir, $_[1]); + return $abs if (-x $abs or $abs = MM->maybe_command($abs)); + } + + return; +} + +# can we locate a (the) C compiler +sub can_cc { + my $self = shift; + my @chunks = split(/ /, $Config::Config{cc}) or return; + + # $Config{cc} may contain args; try to find out the program part + while (@chunks) { + return $self->can_run("@chunks") || (pop(@chunks), next); + } + + return; +} + +# Fix Cygwin bug on maybe_command(); +if ( $^O eq 'cygwin' ) { + require ExtUtils::MM_Cygwin; + require ExtUtils::MM_Win32; + if ( ! defined(&ExtUtils::MM_Cygwin::maybe_command) ) { + *ExtUtils::MM_Cygwin::maybe_command = sub { + my ($self, $file) = @_; + if ($file =~ m{^/cygdrive/}i and ExtUtils::MM_Win32->can('maybe_command')) { + ExtUtils::MM_Win32->maybe_command($file); + } else { + ExtUtils::MM_Unix->maybe_command($file); + } + } + } +} + +1; + +__END__ + +#line 156 diff --git a/inc/Module/Install/Fetch.pm b/inc/Module/Install/Fetch.pm new file mode 100644 index 0000000..c728bcd --- /dev/null +++ b/inc/Module/Install/Fetch.pm @@ -0,0 +1,93 @@ +#line 1 +package Module::Install::Fetch; + +use strict; +use Module::Install::Base (); + +use vars qw{$VERSION @ISA $ISCORE}; +BEGIN { + $VERSION = '0.95'; + @ISA = 'Module::Install::Base'; + $ISCORE = 1; +} + +sub get_file { + my ($self, %args) = @_; + my ($scheme, $host, $path, $file) = + $args{url} =~ m|^(\w+)://([^/]+)(.+)/(.+)| or return; + + if ( $scheme eq 'http' and ! eval { require LWP::Simple; 1 } ) { + $args{url} = $args{ftp_url} + or (warn("LWP support unavailable!\n"), return); + ($scheme, $host, $path, $file) = + $args{url} =~ m|^(\w+)://([^/]+)(.+)/(.+)| or return; + } + + $|++; + print "Fetching '$file' from $host... "; + + unless (eval { require Socket; Socket::inet_aton($host) }) { + warn "'$host' resolve failed!\n"; + return; + } + + return unless $scheme eq 'ftp' or $scheme eq 'http'; + + require Cwd; + my $dir = Cwd::getcwd(); + chdir $args{local_dir} or return if exists $args{local_dir}; + + if (eval { require LWP::Simple; 1 }) { + LWP::Simple::mirror($args{url}, $file); + } + elsif (eval { require Net::FTP; 1 }) { eval { + # use Net::FTP to get past firewall + my $ftp = Net::FTP->new($host, Passive => 1, Timeout => 600); + $ftp->login("anonymous", 'anonymous@example.com'); + $ftp->cwd($path); + $ftp->binary; + $ftp->get($file) or (warn("$!\n"), return); + $ftp->quit; + } } + elsif (my $ftp = $self->can_run('ftp')) { eval { + # no Net::FTP, fallback to ftp.exe + require FileHandle; + my $fh = FileHandle->new; + + local $SIG{CHLD} = 'IGNORE'; + unless ($fh->open("|$ftp -n")) { + warn "Couldn't open ftp: $!\n"; + chdir $dir; return; + } + + my @dialog = split(/\n/, <<"END_FTP"); +open $host +user anonymous anonymous\@example.com +cd $path +binary +get $file $file +quit +END_FTP + foreach (@dialog) { $fh->print("$_\n") } + $fh->close; + } } + else { + warn "No working 'ftp' program available!\n"; + chdir $dir; return; + } + + unless (-f $file) { + warn "Fetching failed: $@\n"; + chdir $dir; return; + } + + return if exists $args{size} and -s $file != $args{size}; + system($args{run}) if exists $args{run}; + unlink($file) if $args{remove}; + + print(((!exists $args{check_for} or -e $args{check_for}) + ? "done!" : "failed! ($!)"), "\n"); + chdir $dir; return !$?; +} + +1; diff --git a/inc/Module/Install/Include.pm b/inc/Module/Install/Include.pm new file mode 100644 index 0000000..3142a6d --- /dev/null +++ b/inc/Module/Install/Include.pm @@ -0,0 +1,34 @@ +#line 1 +package Module::Install::Include; + +use strict; +use Module::Install::Base (); + +use vars qw{$VERSION @ISA $ISCORE}; +BEGIN { + $VERSION = '0.95'; + @ISA = 'Module::Install::Base'; + $ISCORE = 1; +} + +sub include { + shift()->admin->include(@_); +} + +sub include_deps { + shift()->admin->include_deps(@_); +} + +sub auto_include { + shift()->admin->auto_include(@_); +} + +sub auto_include_deps { + shift()->admin->auto_include_deps(@_); +} + +sub auto_include_dependent_dists { + shift()->admin->auto_include_dependent_dists(@_); +} + +1; diff --git a/inc/Module/Install/Makefile.pm b/inc/Module/Install/Makefile.pm new file mode 100644 index 0000000..431ec3f --- /dev/null +++ b/inc/Module/Install/Makefile.pm @@ -0,0 +1,405 @@ +#line 1 +package Module::Install::Makefile; + +use strict 'vars'; +use ExtUtils::MakeMaker (); +use Module::Install::Base (); + +use vars qw{$VERSION @ISA $ISCORE}; +BEGIN { + $VERSION = '0.95'; + @ISA = 'Module::Install::Base'; + $ISCORE = 1; +} + +sub Makefile { $_[0] } + +my %seen = (); + +sub prompt { + shift; + + # Infinite loop protection + my @c = caller(); + if ( ++$seen{"$c[1]|$c[2]|$_[0]"} > 3 ) { + die "Caught an potential prompt infinite loop ($c[1]|$c[2]|$_[0])"; + } + + # In automated testing or non-interactive session, always use defaults + if ( ($ENV{AUTOMATED_TESTING} or -! -t STDIN) and ! $ENV{PERL_MM_USE_DEFAULT} ) { + local $ENV{PERL_MM_USE_DEFAULT} = 1; + goto &ExtUtils::MakeMaker::prompt; + } else { + goto &ExtUtils::MakeMaker::prompt; + } +} + +# Store a cleaned up version of the MakeMaker version, +# since we need to behave differently in a variety of +# ways based on the MM version. +my $makemaker = eval $ExtUtils::MakeMaker::VERSION; + +# If we are passed a param, do a "newer than" comparison. +# Otherwise, just return the MakeMaker version. +sub makemaker { + ( @_ < 2 or $makemaker >= eval($_[1]) ) ? $makemaker : 0 +} + +# Ripped from ExtUtils::MakeMaker 6.56, and slightly modified +# as we only need to know here whether the attribute is an array +# or a hash or something else (which may or may not be appendable). +my %makemaker_argtype = ( + C => 'ARRAY', + CONFIG => 'ARRAY', +# CONFIGURE => 'CODE', # ignore + DIR => 'ARRAY', + DL_FUNCS => 'HASH', + DL_VARS => 'ARRAY', + EXCLUDE_EXT => 'ARRAY', + EXE_FILES => 'ARRAY', + FUNCLIST => 'ARRAY', + H => 'ARRAY', + IMPORTS => 'HASH', + INCLUDE_EXT => 'ARRAY', + LIBS => 'ARRAY', # ignore '' + MAN1PODS => 'HASH', + MAN3PODS => 'HASH', + META_ADD => 'HASH', + META_MERGE => 'HASH', + PL_FILES => 'HASH', + PM => 'HASH', + PMLIBDIRS => 'ARRAY', + PMLIBPARENTDIRS => 'ARRAY', + PREREQ_PM => 'HASH', + CONFIGURE_REQUIRES => 'HASH', + SKIP => 'ARRAY', + TYPEMAPS => 'ARRAY', + XS => 'HASH', +# VERSION => ['version',''], # ignore +# _KEEP_AFTER_FLUSH => '', + + clean => 'HASH', + depend => 'HASH', + dist => 'HASH', + dynamic_lib=> 'HASH', + linkext => 'HASH', + macro => 'HASH', + postamble => 'HASH', + realclean => 'HASH', + test => 'HASH', + tool_autosplit => 'HASH', + + # special cases where you can use makemaker_append + CCFLAGS => 'APPENDABLE', + DEFINE => 'APPENDABLE', + INC => 'APPENDABLE', + LDDLFLAGS => 'APPENDABLE', + LDFROM => 'APPENDABLE', +); + +sub makemaker_args { + my ($self, %new_args) = @_; + my $args = ( $self->{makemaker_args} ||= {} ); + foreach my $key (keys %new_args) { + if ($makemaker_argtype{$key} eq 'ARRAY') { + $args->{$key} = [] unless defined $args->{$key}; + unless (ref $args->{$key} eq 'ARRAY') { + $args->{$key} = [$args->{$key}] + } + push @{$args->{$key}}, + ref $new_args{$key} eq 'ARRAY' + ? @{$new_args{$key}} + : $new_args{$key}; + } + elsif ($makemaker_argtype{$key} eq 'HASH') { + $args->{$key} = {} unless defined $args->{$key}; + foreach my $skey (keys %{ $new_args{$key} }) { + $args->{$key}{$skey} = $new_args{$key}{$skey}; + } + } + elsif ($makemaker_argtype{$key} eq 'APPENDABLE') { + $self->makemaker_append($key => $new_args{$key}); + } + else { + if (defined $args->{$key}) { + warn qq{MakeMaker attribute "$key" is overriden; use "makemaker_append" to append values\n}; + } + $args->{$key} = $new_args{$key}; + } + } + return $args; +} + +# For mm args that take multiple space-seperated args, +# append an argument to the current list. +sub makemaker_append { + my $self = shift; + my $name = shift; + my $args = $self->makemaker_args; + $args->{$name} = defined $args->{$name} + ? join( ' ', $args->{$name}, @_ ) + : join( ' ', @_ ); +} + +sub build_subdirs { + my $self = shift; + my $subdirs = $self->makemaker_args->{DIR} ||= []; + for my $subdir (@_) { + push @$subdirs, $subdir; + } +} + +sub clean_files { + my $self = shift; + my $clean = $self->makemaker_args->{clean} ||= {}; + %$clean = ( + %$clean, + FILES => join ' ', grep { length $_ } ($clean->{FILES} || (), @_), + ); +} + +sub realclean_files { + my $self = shift; + my $realclean = $self->makemaker_args->{realclean} ||= {}; + %$realclean = ( + %$realclean, + FILES => join ' ', grep { length $_ } ($realclean->{FILES} || (), @_), + ); +} + +sub libs { + my $self = shift; + my $libs = ref $_[0] ? shift : [ shift ]; + $self->makemaker_args( LIBS => $libs ); +} + +sub inc { + my $self = shift; + $self->makemaker_args( INC => shift ); +} + +my %test_dir = (); + +sub _wanted_t { + /\.t$/ and -f $_ and $test_dir{$File::Find::dir} = 1; +} + +sub tests_recursive { + my $self = shift; + if ( $self->tests ) { + die "tests_recursive will not work if tests are already defined"; + } + my $dir = shift || 't'; + unless ( -d $dir ) { + die "tests_recursive dir '$dir' does not exist"; + } + %test_dir = (); + require File::Find; + File::Find::find( \&_wanted_t, $dir ); + if ( -d 'xt' and ($Module::Install::AUTHOR or $ENV{RELEASE_TESTING}) ) { + File::Find::find( \&_wanted_t, 'xt' ); + } + $self->tests( join ' ', map { "$_/*.t" } sort keys %test_dir ); +} + +sub write { + my $self = shift; + die "&Makefile->write() takes no arguments\n" if @_; + + # Check the current Perl version + my $perl_version = $self->perl_version; + if ( $perl_version ) { + eval "use $perl_version; 1" + or die "ERROR: perl: Version $] is installed, " + . "but we need version >= $perl_version"; + } + + # Make sure we have a new enough MakeMaker + require ExtUtils::MakeMaker; + + if ( $perl_version and $self->_cmp($perl_version, '5.006') >= 0 ) { + # MakeMaker can complain about module versions that include + # an underscore, even though its own version may contain one! + # Hence the funny regexp to get rid of it. See RT #35800 + # for details. + my $v = $ExtUtils::MakeMaker::VERSION =~ /^(\d+\.\d+)/; + $self->build_requires( 'ExtUtils::MakeMaker' => $v ); + $self->configure_requires( 'ExtUtils::MakeMaker' => $v ); + } else { + # Allow legacy-compatibility with 5.005 by depending on the + # most recent EU:MM that supported 5.005. + $self->build_requires( 'ExtUtils::MakeMaker' => 6.42 ); + $self->configure_requires( 'ExtUtils::MakeMaker' => 6.42 ); + } + + # Generate the MakeMaker params + my $args = $self->makemaker_args; + $args->{DISTNAME} = $self->name; + $args->{NAME} = $self->module_name || $self->name; + $args->{NAME} =~ s/-/::/g; + $args->{VERSION} = $self->version or die <<'EOT'; +ERROR: Can't determine distribution version. Please specify it +explicitly via 'version' in Makefile.PL, or set a valid $VERSION +in a module, and provide its file path via 'version_from' (or +'all_from' if you prefer) in Makefile.PL. +EOT + + $DB::single = 1; + if ( $self->tests ) { + my @tests = split ' ', $self->tests; + my %seen; + $args->{test} = { + TESTS => (join ' ', grep {!$seen{$_}++} @tests), + }; + } elsif ( -d 'xt' and ($Module::Install::AUTHOR or $ENV{RELEASE_TESTING}) ) { + $args->{test} = { + TESTS => join( ' ', map { "$_/*.t" } grep { -d $_ } qw{ t xt } ), + }; + } + if ( $] >= 5.005 ) { + $args->{ABSTRACT} = $self->abstract; + $args->{AUTHOR} = join ', ', @{$self->author || []}; + } + if ( $self->makemaker(6.10) ) { + $args->{NO_META} = 1; + #$args->{NO_MYMETA} = 1; + } + if ( $self->makemaker(6.17) and $self->sign ) { + $args->{SIGN} = 1; + } + unless ( $self->is_admin ) { + delete $args->{SIGN}; + } + if ( $self->makemaker(6.31) and $self->license ) { + $args->{LICENSE} = $self->license; + } + + my $prereq = ($args->{PREREQ_PM} ||= {}); + %$prereq = ( %$prereq, + map { @$_ } # flatten [module => version] + map { @$_ } + grep $_, + ($self->requires) + ); + + # Remove any reference to perl, PREREQ_PM doesn't support it + delete $args->{PREREQ_PM}->{perl}; + + # Merge both kinds of requires into BUILD_REQUIRES + my $build_prereq = ($args->{BUILD_REQUIRES} ||= {}); + %$build_prereq = ( %$build_prereq, + map { @$_ } # flatten [module => version] + map { @$_ } + grep $_, + ($self->configure_requires, $self->build_requires) + ); + + # Remove any reference to perl, BUILD_REQUIRES doesn't support it + delete $args->{BUILD_REQUIRES}->{perl}; + + # Delete bundled dists from prereq_pm + my $subdirs = ($args->{DIR} ||= []); + if ($self->bundles) { + foreach my $bundle (@{ $self->bundles }) { + my ($file, $dir) = @$bundle; + push @$subdirs, $dir if -d $dir; + delete $build_prereq->{$file}; #Delete from build prereqs only + } + } + + unless ( $self->makemaker('6.55_03') ) { + %$prereq = (%$prereq,%$build_prereq); + delete $args->{BUILD_REQUIRES}; + } + + if ( my $perl_version = $self->perl_version ) { + eval "use $perl_version; 1" + or die "ERROR: perl: Version $] is installed, " + . "but we need version >= $perl_version"; + + if ( $self->makemaker(6.48) ) { + $args->{MIN_PERL_VERSION} = $perl_version; + } + } + + if ($self->installdirs) { + warn qq{old INSTALLDIRS (probably set by makemaker_args) is overriden by installdirs\n} if $args->{INSTALLDIRS}; + $args->{INSTALLDIRS} = $self->installdirs; + } + + my %args = map { + ( $_ => $args->{$_} ) } grep {defined($args->{$_} ) + } keys %$args; + + my $user_preop = delete $args{dist}->{PREOP}; + if ( my $preop = $self->admin->preop($user_preop) ) { + foreach my $key ( keys %$preop ) { + $args{dist}->{$key} = $preop->{$key}; + } + } + + my $mm = ExtUtils::MakeMaker::WriteMakefile(%args); + $self->fix_up_makefile($mm->{FIRST_MAKEFILE} || 'Makefile'); +} + +sub fix_up_makefile { + my $self = shift; + my $makefile_name = shift; + my $top_class = ref($self->_top) || ''; + my $top_version = $self->_top->VERSION || ''; + + my $preamble = $self->preamble + ? "# Preamble by $top_class $top_version\n" + . $self->preamble + : ''; + my $postamble = "# Postamble by $top_class $top_version\n" + . ($self->postamble || ''); + + local *MAKEFILE; + open MAKEFILE, "< $makefile_name" or die "fix_up_makefile: Couldn't open $makefile_name: $!"; + my $makefile = do { local $/; }; + close MAKEFILE or die $!; + + $makefile =~ s/\b(test_harness\(\$\(TEST_VERBOSE\), )/$1'inc', /; + $makefile =~ s/( -I\$\(INST_ARCHLIB\))/ -Iinc$1/g; + $makefile =~ s/( "-I\$\(INST_LIB\)")/ "-Iinc"$1/g; + $makefile =~ s/^(FULLPERL = .*)/$1 "-Iinc"/m; + $makefile =~ s/^(PERL = .*)/$1 "-Iinc"/m; + + # Module::Install will never be used to build the Core Perl + # Sometimes PERL_LIB and PERL_ARCHLIB get written anyway, which breaks + # PREFIX/PERL5LIB, and thus, install_share. Blank them if they exist + $makefile =~ s/^PERL_LIB = .+/PERL_LIB =/m; + #$makefile =~ s/^PERL_ARCHLIB = .+/PERL_ARCHLIB =/m; + + # Perl 5.005 mentions PERL_LIB explicitly, so we have to remove that as well. + $makefile =~ s/(\"?)-I\$\(PERL_LIB\)\1//g; + + # XXX - This is currently unused; not sure if it breaks other MM-users + # $makefile =~ s/^pm_to_blib\s+:\s+/pm_to_blib :: /mg; + + open MAKEFILE, "> $makefile_name" or die "fix_up_makefile: Couldn't open $makefile_name: $!"; + print MAKEFILE "$preamble$makefile$postamble" or die $!; + close MAKEFILE or die $!; + + 1; +} + +sub preamble { + my ($self, $text) = @_; + $self->{preamble} = $text . $self->{preamble} if defined $text; + $self->{preamble}; +} + +sub postamble { + my ($self, $text) = @_; + $self->{postamble} ||= $self->admin->postamble; + $self->{postamble} .= $text if defined $text; + $self->{postamble} +} + +1; + +__END__ + +#line 531 diff --git a/inc/Module/Install/Metadata.pm b/inc/Module/Install/Metadata.pm new file mode 100644 index 0000000..162bde0 --- /dev/null +++ b/inc/Module/Install/Metadata.pm @@ -0,0 +1,694 @@ +#line 1 +package Module::Install::Metadata; + +use strict 'vars'; +use Module::Install::Base (); + +use vars qw{$VERSION @ISA $ISCORE}; +BEGIN { + $VERSION = '0.95'; + @ISA = 'Module::Install::Base'; + $ISCORE = 1; +} + +my @boolean_keys = qw{ + sign +}; + +my @scalar_keys = qw{ + name + module_name + abstract + version + distribution_type + tests + installdirs +}; + +my @tuple_keys = qw{ + configure_requires + build_requires + requires + recommends + bundles + resources +}; + +my @resource_keys = qw{ + homepage + bugtracker + repository +}; + +my @array_keys = qw{ + keywords + author +}; + +*authors = \&author; + +sub Meta { shift } +sub Meta_BooleanKeys { @boolean_keys } +sub Meta_ScalarKeys { @scalar_keys } +sub Meta_TupleKeys { @tuple_keys } +sub Meta_ResourceKeys { @resource_keys } +sub Meta_ArrayKeys { @array_keys } + +foreach my $key ( @boolean_keys ) { + *$key = sub { + my $self = shift; + if ( defined wantarray and not @_ ) { + return $self->{values}->{$key}; + } + $self->{values}->{$key} = ( @_ ? $_[0] : 1 ); + return $self; + }; +} + +foreach my $key ( @scalar_keys ) { + *$key = sub { + my $self = shift; + return $self->{values}->{$key} if defined wantarray and !@_; + $self->{values}->{$key} = shift; + return $self; + }; +} + +foreach my $key ( @array_keys ) { + *$key = sub { + my $self = shift; + return $self->{values}->{$key} if defined wantarray and !@_; + $self->{values}->{$key} ||= []; + push @{$self->{values}->{$key}}, @_; + return $self; + }; +} + +foreach my $key ( @resource_keys ) { + *$key = sub { + my $self = shift; + unless ( @_ ) { + return () unless $self->{values}->{resources}; + return map { $_->[1] } + grep { $_->[0] eq $key } + @{ $self->{values}->{resources} }; + } + return $self->{values}->{resources}->{$key} unless @_; + my $uri = shift or die( + "Did not provide a value to $key()" + ); + $self->resources( $key => $uri ); + return 1; + }; +} + +foreach my $key ( grep { $_ ne "resources" } @tuple_keys) { + *$key = sub { + my $self = shift; + return $self->{values}->{$key} unless @_; + my @added; + while ( @_ ) { + my $module = shift or last; + my $version = shift || 0; + push @added, [ $module, $version ]; + } + push @{ $self->{values}->{$key} }, @added; + return map {@$_} @added; + }; +} + +# Resource handling +my %lc_resource = map { $_ => 1 } qw{ + homepage + license + bugtracker + repository +}; + +sub resources { + my $self = shift; + while ( @_ ) { + my $name = shift or last; + my $value = shift or next; + if ( $name eq lc $name and ! $lc_resource{$name} ) { + die("Unsupported reserved lowercase resource '$name'"); + } + $self->{values}->{resources} ||= []; + push @{ $self->{values}->{resources} }, [ $name, $value ]; + } + $self->{values}->{resources}; +} + +# Aliases for build_requires that will have alternative +# meanings in some future version of META.yml. +sub test_requires { shift->build_requires(@_) } +sub install_requires { shift->build_requires(@_) } + +# Aliases for installdirs options +sub install_as_core { $_[0]->installdirs('perl') } +sub install_as_cpan { $_[0]->installdirs('site') } +sub install_as_site { $_[0]->installdirs('site') } +sub install_as_vendor { $_[0]->installdirs('vendor') } + +sub dynamic_config { + my $self = shift; + unless ( @_ ) { + warn "You MUST provide an explicit true/false value to dynamic_config\n"; + return $self; + } + $self->{values}->{dynamic_config} = $_[0] ? 1 : 0; + return 1; +} + +sub perl_version { + my $self = shift; + return $self->{values}->{perl_version} unless @_; + my $version = shift or die( + "Did not provide a value to perl_version()" + ); + + # Normalize the version + $version = $self->_perl_version($version); + + # We don't support the reall old versions + unless ( $version >= 5.005 ) { + die "Module::Install only supports 5.005 or newer (use ExtUtils::MakeMaker)\n"; + } + + $self->{values}->{perl_version} = $version; +} + +#Stolen from M::B +my %license_urls = ( + perl => 'http://dev.perl.org/licenses/', + apache => 'http://apache.org/licenses/LICENSE-2.0', + artistic => 'http://opensource.org/licenses/artistic-license.php', + artistic_2 => 'http://opensource.org/licenses/artistic-license-2.0.php', + lgpl => 'http://opensource.org/licenses/lgpl-license.php', + lgpl2 => 'http://opensource.org/licenses/lgpl-2.1.php', + lgpl3 => 'http://opensource.org/licenses/lgpl-3.0.html', + bsd => 'http://opensource.org/licenses/bsd-license.php', + gpl => 'http://opensource.org/licenses/gpl-license.php', + gpl2 => 'http://opensource.org/licenses/gpl-2.0.php', + gpl3 => 'http://opensource.org/licenses/gpl-3.0.html', + mit => 'http://opensource.org/licenses/mit-license.php', + mozilla => 'http://opensource.org/licenses/mozilla1.1.php', + open_source => undef, + unrestricted => undef, + restrictive => undef, + unknown => undef, +); + +sub license { + my $self = shift; + return $self->{values}->{license} unless @_; + my $license = shift or die( + 'Did not provide a value to license()' + ); + $self->{values}->{license} = $license; + + # Automatically fill in license URLs + if ( $license_urls{$license} ) { + $self->resources( license => $license_urls{$license} ); + } + + return 1; +} + +sub all_from { + my ( $self, $file ) = @_; + + unless ( defined($file) ) { + my $name = $self->name or die( + "all_from called with no args without setting name() first" + ); + $file = join('/', 'lib', split(/-/, $name)) . '.pm'; + $file =~ s{.*/}{} unless -e $file; + unless ( -e $file ) { + die("all_from cannot find $file from $name"); + } + } + unless ( -f $file ) { + die("The path '$file' does not exist, or is not a file"); + } + + $self->{values}{all_from} = $file; + + # Some methods pull from POD instead of code. + # If there is a matching .pod, use that instead + my $pod = $file; + $pod =~ s/\.pm$/.pod/i; + $pod = $file unless -e $pod; + + # Pull the different values + $self->name_from($file) unless $self->name; + $self->version_from($file) unless $self->version; + $self->perl_version_from($file) unless $self->perl_version; + $self->author_from($pod) unless @{$self->author || []}; + $self->license_from($pod) unless $self->license; + $self->abstract_from($pod) unless $self->abstract; + + return 1; +} + +sub provides { + my $self = shift; + my $provides = ( $self->{values}->{provides} ||= {} ); + %$provides = (%$provides, @_) if @_; + return $provides; +} + +sub auto_provides { + my $self = shift; + return $self unless $self->is_admin; + unless (-e 'MANIFEST') { + warn "Cannot deduce auto_provides without a MANIFEST, skipping\n"; + return $self; + } + # Avoid spurious warnings as we are not checking manifest here. + local $SIG{__WARN__} = sub {1}; + require ExtUtils::Manifest; + local *ExtUtils::Manifest::manicheck = sub { return }; + + require Module::Build; + my $build = Module::Build->new( + dist_name => $self->name, + dist_version => $self->version, + license => $self->license, + ); + $self->provides( %{ $build->find_dist_packages || {} } ); +} + +sub feature { + my $self = shift; + my $name = shift; + my $features = ( $self->{values}->{features} ||= [] ); + my $mods; + + if ( @_ == 1 and ref( $_[0] ) ) { + # The user used ->feature like ->features by passing in the second + # argument as a reference. Accomodate for that. + $mods = $_[0]; + } else { + $mods = \@_; + } + + my $count = 0; + push @$features, ( + $name => [ + map { + ref($_) ? ( ref($_) eq 'HASH' ) ? %$_ : @$_ : $_ + } @$mods + ] + ); + + return @$features; +} + +sub features { + my $self = shift; + while ( my ( $name, $mods ) = splice( @_, 0, 2 ) ) { + $self->feature( $name, @$mods ); + } + return $self->{values}->{features} + ? @{ $self->{values}->{features} } + : (); +} + +sub no_index { + my $self = shift; + my $type = shift; + push @{ $self->{values}->{no_index}->{$type} }, @_ if $type; + return $self->{values}->{no_index}; +} + +sub read { + my $self = shift; + $self->include_deps( 'YAML::Tiny', 0 ); + + require YAML::Tiny; + my $data = YAML::Tiny::LoadFile('META.yml'); + + # Call methods explicitly in case user has already set some values. + while ( my ( $key, $value ) = each %$data ) { + next unless $self->can($key); + if ( ref $value eq 'HASH' ) { + while ( my ( $module, $version ) = each %$value ) { + $self->can($key)->($self, $module => $version ); + } + } else { + $self->can($key)->($self, $value); + } + } + return $self; +} + +sub write { + my $self = shift; + return $self unless $self->is_admin; + $self->admin->write_meta; + return $self; +} + +sub version_from { + require ExtUtils::MM_Unix; + my ( $self, $file ) = @_; + $self->version( ExtUtils::MM_Unix->parse_version($file) ); +} + +sub abstract_from { + require ExtUtils::MM_Unix; + my ( $self, $file ) = @_; + $self->abstract( + bless( + { DISTNAME => $self->name }, + 'ExtUtils::MM_Unix' + )->parse_abstract($file) + ); +} + +# Add both distribution and module name +sub name_from { + my ($self, $file) = @_; + if ( + Module::Install::_read($file) =~ m/ + ^ \s* + package \s* + ([\w:]+) + \s* ; + /ixms + ) { + my ($name, $module_name) = ($1, $1); + $name =~ s{::}{-}g; + $self->name($name); + unless ( $self->module_name ) { + $self->module_name($module_name); + } + } else { + die("Cannot determine name from $file\n"); + } +} + +sub _extract_perl_version { + if ( + $_[0] =~ m/ + ^\s* + (?:use|require) \s* + v? + ([\d_\.]+) + \s* ; + /ixms + ) { + my $perl_version = $1; + $perl_version =~ s{_}{}g; + return $perl_version; + } else { + return; + } +} + +sub perl_version_from { + my $self = shift; + my $perl_version=_extract_perl_version(Module::Install::_read($_[0])); + if ($perl_version) { + $self->perl_version($perl_version); + } else { + warn "Cannot determine perl version info from $_[0]\n"; + return; + } +} + +sub author_from { + my $self = shift; + my $content = Module::Install::_read($_[0]); + if ($content =~ m/ + =head \d \s+ (?:authors?)\b \s* + ([^\n]*) + | + =head \d \s+ (?:licen[cs]e|licensing|copyright|legal)\b \s* + .*? copyright .*? \d\d\d[\d.]+ \s* (?:\bby\b)? \s* + ([^\n]*) + /ixms) { + my $author = $1 || $2; + + # XXX: ugly but should work anyway... + if (eval "require Pod::Escapes; 1") { + # Pod::Escapes has a mapping table. + # It's in core of perl >= 5.9.3, and should be installed + # as one of the Pod::Simple's prereqs, which is a prereq + # of Pod::Text 3.x (see also below). + $author =~ s{ E<( (\d+) | ([A-Za-z]+) )> } + { + defined $2 + ? chr($2) + : defined $Pod::Escapes::Name2character_number{$1} + ? chr($Pod::Escapes::Name2character_number{$1}) + : do { + warn "Unknown escape: E<$1>"; + "E<$1>"; + }; + }gex; + } + elsif (eval "require Pod::Text; 1" && $Pod::Text::VERSION < 3) { + # Pod::Text < 3.0 has yet another mapping table, + # though the table name of 2.x and 1.x are different. + # (1.x is in core of Perl < 5.6, 2.x is in core of + # Perl < 5.9.3) + my $mapping = ($Pod::Text::VERSION < 2) + ? \%Pod::Text::HTML_Escapes + : \%Pod::Text::ESCAPES; + $author =~ s{ E<( (\d+) | ([A-Za-z]+) )> } + { + defined $2 + ? chr($2) + : defined $mapping->{$1} + ? $mapping->{$1} + : do { + warn "Unknown escape: E<$1>"; + "E<$1>"; + }; + }gex; + } + else { + $author =~ s{E}{<}g; + $author =~ s{E}{>}g; + } + $self->author($author); + } else { + warn "Cannot determine author info from $_[0]\n"; + } +} + +sub _extract_license { + my $pod = shift; + my $matched; + return __extract_license( + ($matched) = $pod =~ m/ + (=head \d \s+ (?:licen[cs]e|licensing)\b.*?) + (=head \d.*|=cut.*|)\z + /ixms + ) || __extract_license( + ($matched) = $pod =~ m/ + (=head \d \s+ (?:copyrights?|legal)\b.*?) + (=head \d.*|=cut.*|)\z + /ixms + ); +} + +sub __extract_license { + my $license_text = shift or return; + my @phrases = ( + 'under the same (?:terms|license) as (?:perl|the perl programming language)' => 'perl', 1, + 'under the terms of (?:perl|the perl programming language) itself' => 'perl', 1, + 'Artistic and GPL' => 'perl', 1, + 'GNU general public license' => 'gpl', 1, + 'GNU public license' => 'gpl', 1, + 'GNU lesser general public license' => 'lgpl', 1, + 'GNU lesser public license' => 'lgpl', 1, + 'GNU library general public license' => 'lgpl', 1, + 'GNU library public license' => 'lgpl', 1, + 'BSD license' => 'bsd', 1, + 'Artistic license' => 'artistic', 1, + 'GPL' => 'gpl', 1, + 'LGPL' => 'lgpl', 1, + 'BSD' => 'bsd', 1, + 'Artistic' => 'artistic', 1, + 'MIT' => 'mit', 1, + 'proprietary' => 'proprietary', 0, + ); + while ( my ($pattern, $license, $osi) = splice(@phrases, 0, 3) ) { + $pattern =~ s#\s+#\\s+#gs; + if ( $license_text =~ /\b$pattern\b/i ) { + return $license; + } + } +} + +sub license_from { + my $self = shift; + if (my $license=_extract_license(Module::Install::_read($_[0]))) { + $self->license($license); + } else { + warn "Cannot determine license info from $_[0]\n"; + return 'unknown'; + } +} + +sub _extract_bugtracker { + my @links = $_[0] =~ m#L<( + \Qhttp://rt.cpan.org/\E[^>]+| + \Qhttp://github.com/\E[\w_]+/[\w_]+/issues| + \Qhttp://code.google.com/p/\E[\w_\-]+/issues/list + )>#gx; + my %links; + @links{@links}=(); + @links=keys %links; + return @links; +} + +sub bugtracker_from { + my $self = shift; + my $content = Module::Install::_read($_[0]); + my @links = _extract_bugtracker($content); + unless ( @links ) { + warn "Cannot determine bugtracker info from $_[0]\n"; + return 0; + } + if ( @links > 1 ) { + warn "Found more than one bugtracker link in $_[0]\n"; + return 0; + } + + # Set the bugtracker + bugtracker( $links[0] ); + return 1; +} + +sub requires_from { + my $self = shift; + my $content = Module::Install::_readperl($_[0]); + my @requires = $content =~ m/^use\s+([^\W\d]\w*(?:::\w+)*)\s+([\d\.]+)/mg; + while ( @requires ) { + my $module = shift @requires; + my $version = shift @requires; + $self->requires( $module => $version ); + } +} + +sub test_requires_from { + my $self = shift; + my $content = Module::Install::_readperl($_[0]); + my @requires = $content =~ m/^use\s+([^\W\d]\w*(?:::\w+)*)\s+([\d\.]+)/mg; + while ( @requires ) { + my $module = shift @requires; + my $version = shift @requires; + $self->test_requires( $module => $version ); + } +} + +# Convert triple-part versions (eg, 5.6.1 or 5.8.9) to +# numbers (eg, 5.006001 or 5.008009). +# Also, convert double-part versions (eg, 5.8) +sub _perl_version { + my $v = $_[-1]; + $v =~ s/^([1-9])\.([1-9]\d?\d?)$/sprintf("%d.%03d",$1,$2)/e; + $v =~ s/^([1-9])\.([1-9]\d?\d?)\.(0|[1-9]\d?\d?)$/sprintf("%d.%03d%03d",$1,$2,$3 || 0)/e; + $v =~ s/(\.\d\d\d)000$/$1/; + $v =~ s/_.+$//; + if ( ref($v) ) { + # Numify + $v = $v + 0; + } + return $v; +} + + + + + +###################################################################### +# MYMETA Support + +sub WriteMyMeta { + die "WriteMyMeta has been deprecated"; +} + +sub write_mymeta_yaml { + my $self = shift; + + # We need YAML::Tiny to write the MYMETA.yml file + unless ( eval { require YAML::Tiny; 1; } ) { + return 1; + } + + # Generate the data + my $meta = $self->_write_mymeta_data or return 1; + + # Save as the MYMETA.yml file + print "Writing MYMETA.yml\n"; + YAML::Tiny::DumpFile('MYMETA.yml', $meta); +} + +sub write_mymeta_json { + my $self = shift; + + # We need JSON to write the MYMETA.json file + unless ( eval { require JSON; 1; } ) { + return 1; + } + + # Generate the data + my $meta = $self->_write_mymeta_data or return 1; + + # Save as the MYMETA.yml file + print "Writing MYMETA.json\n"; + Module::Install::_write( + 'MYMETA.json', + JSON->new->pretty(1)->canonical->encode($meta), + ); +} + +sub _write_mymeta_data { + my $self = shift; + + # If there's no existing META.yml there is nothing we can do + return undef unless -f 'META.yml'; + + # We need Parse::CPAN::Meta to load the file + unless ( eval { require Parse::CPAN::Meta; 1; } ) { + return undef; + } + + # Merge the perl version into the dependencies + my $val = $self->Meta->{values}; + my $perl = delete $val->{perl_version}; + if ( $perl ) { + $val->{requires} ||= []; + my $requires = $val->{requires}; + + # Canonize to three-dot version after Perl 5.6 + if ( $perl >= 5.006 ) { + $perl =~ s{^(\d+)\.(\d\d\d)(\d*)}{join('.', $1, int($2||0), int($3||0))}e + } + unshift @$requires, [ perl => $perl ]; + } + + # Load the advisory META.yml file + my @yaml = Parse::CPAN::Meta::LoadFile('META.yml'); + my $meta = $yaml[0]; + + # Overwrite the non-configure dependency hashs + delete $meta->{requires}; + delete $meta->{build_requires}; + delete $meta->{recommends}; + if ( exists $val->{requires} ) { + $meta->{requires} = { map { @$_ } @{ $val->{requires} } }; + } + if ( exists $val->{build_requires} ) { + $meta->{build_requires} = { map { @$_ } @{ $val->{build_requires} } }; + } + + return $meta; +} + +1; diff --git a/inc/Module/Install/Win32.pm b/inc/Module/Install/Win32.pm new file mode 100644 index 0000000..f55e166 --- /dev/null +++ b/inc/Module/Install/Win32.pm @@ -0,0 +1,64 @@ +#line 1 +package Module::Install::Win32; + +use strict; +use Module::Install::Base (); + +use vars qw{$VERSION @ISA $ISCORE}; +BEGIN { + $VERSION = '0.95'; + @ISA = 'Module::Install::Base'; + $ISCORE = 1; +} + +# determine if the user needs nmake, and download it if needed +sub check_nmake { + my $self = shift; + $self->load('can_run'); + $self->load('get_file'); + + require Config; + return unless ( + $^O eq 'MSWin32' and + $Config::Config{make} and + $Config::Config{make} =~ /^nmake\b/i and + ! $self->can_run('nmake') + ); + + print "The required 'nmake' executable not found, fetching it...\n"; + + require File::Basename; + my $rv = $self->get_file( + url => 'http://download.microsoft.com/download/vc15/Patch/1.52/W95/EN-US/Nmake15.exe', + ftp_url => 'ftp://ftp.microsoft.com/Softlib/MSLFILES/Nmake15.exe', + local_dir => File::Basename::dirname($^X), + size => 51928, + run => 'Nmake15.exe /o > nul', + check_for => 'Nmake.exe', + remove => 1, + ); + + die <<'END_MESSAGE' unless $rv; + +------------------------------------------------------------------------------- + +Since you are using Microsoft Windows, you will need the 'nmake' utility +before installation. It's available at: + + http://download.microsoft.com/download/vc15/Patch/1.52/W95/EN-US/Nmake15.exe + or + ftp://ftp.microsoft.com/Softlib/MSLFILES/Nmake15.exe + +Please download the file manually, save it to a directory in %PATH% (e.g. +C:\WINDOWS\COMMAND\), then launch the MS-DOS command line shell, "cd" to +that directory, and run "Nmake15.exe" from there; that will create the +'nmake.exe' file needed by this module. + +You may then resume the installation process described in README. + +------------------------------------------------------------------------------- +END_MESSAGE + +} + +1; diff --git a/inc/Module/Install/WriteAll.pm b/inc/Module/Install/WriteAll.pm new file mode 100644 index 0000000..6b3bba7 --- /dev/null +++ b/inc/Module/Install/WriteAll.pm @@ -0,0 +1,63 @@ +#line 1 +package Module::Install::WriteAll; + +use strict; +use Module::Install::Base (); + +use vars qw{$VERSION @ISA $ISCORE}; +BEGIN { + $VERSION = '0.95';; + @ISA = qw{Module::Install::Base}; + $ISCORE = 1; +} + +sub WriteAll { + my $self = shift; + my %args = ( + meta => 1, + sign => 0, + inline => 0, + check_nmake => 1, + @_, + ); + + $self->sign(1) if $args{sign}; + $self->admin->WriteAll(%args) if $self->is_admin; + + $self->check_nmake if $args{check_nmake}; + unless ( $self->makemaker_args->{PL_FILES} ) { + # XXX: This still may be a bit over-defensive... + unless ($self->makemaker(6.25)) { + $self->makemaker_args( PL_FILES => {} ) if -f 'Build.PL'; + } + } + + # Until ExtUtils::MakeMaker support MYMETA.yml, make sure + # we clean it up properly ourself. + $self->realclean_files('MYMETA.yml'); + + if ( $args{inline} ) { + $self->Inline->write; + } else { + $self->Makefile->write; + } + + # The Makefile write process adds a couple of dependencies, + # so write the META.yml files after the Makefile. + if ( $args{meta} ) { + $self->Meta->write; + } + + # Experimental support for MYMETA + if ( $ENV{X_MYMETA} ) { + if ( $ENV{X_MYMETA} eq 'JSON' ) { + $self->Meta->write_mymeta_json; + } else { + $self->Meta->write_mymeta_yaml; + } + } + + return 1; +} + +1; diff --git a/lib/DBIx/Class/ResultSource/MultipleTableInheritance.pm b/lib/DBIx/Class/ResultSource/MultipleTableInheritance.pm index f05b19b..a7cf799 100644 --- a/lib/DBIx/Class/ResultSource/MultipleTableInheritance.pm +++ b/lib/DBIx/Class/ResultSource/MultipleTableInheritance.pm @@ -11,20 +11,7 @@ use String::TT qw(strip tt); use Scalar::Util qw(blessed); use namespace::autoclean; -# how this works: -# -# On construction, we hook $self->result_class->result_source_instance -# if present to get the superclass' source object -# -# When attached to a schema, we need to add sources to that schema with -# appropriate relationships for the foreign keys so the concrete tables -# get generated -# -# We also generate our own view definition using this class' concrete table -# and the view for the superclass, and stored procedures for the insert, -# update and delete operations on this view. -# -# deploying the postgres rules through SQLT may be a pain though. +our $VERSION = 0.01; __PACKAGE__->mk_group_accessors(simple => qw(parent_source additional_parents)); @@ -421,3 +408,226 @@ method view_definition () { } 1; + +__END__ + +# how this works: +# +# On construction, we hook $self->result_class->result_source_instance +# if present to get the superclass' source object +# +# When attached to a schema, we need to add sources to that schema with +# appropriate relationships for the foreign keys so the concrete tables +# get generated +# +# We also generate our own view definition using this class' concrete table +# and the view for the superclass, and stored procedures for the insert, +# update and delete operations on this view. +# +# deploying the postgres rules through SQLT may be a pain though. + +=encoding utf-8 + +=head1 NAME + +DBIx::Class::ResultSource::MultipleTableInheritance -- Use multiple tables to define your classes + +=head1 SYNOPSIS + + + { + package MyApp::Schema::Result::Coffee; + + __PACKAGE__->table_class('DBIx::Class::ResultSource::MultipleTableInheritance'); + __PACKAGE__->table('coffee'); + __PACKAGE__->add_columns( + "id", + { + data_type => "integer", + default_value => "nextval('coffee_seq'::regclass)", + is_auto_increment => 1, + is_foreign_key => 1, + is_nullable => 0, + size => 4, + }, + "flavor", + { + data_type => "text", + default_value => "good", + }, + ); + + __PACKAGE__->set_primary_key("id"); + + 1; + } + + { + package MyApp::Schema::Result::Sumatra; + + use parent 'Coffee'; + + __PACKAGE__->table('sumatra'); + + __PACKAGE__->add_columns( + "aroma", + { + data_type => "text", + default_value => undef, + is_nullable => 0, + }, + ); + + 1; + } + + ... + + my $schema = MyApp::Schema->connect($dsn); + + my $cup = $schema->resultset('Sumatra')->new; + + print STDERR Dumper $cup->columns; + + $VAR1 = 'id'; + $VAR2 = 'flavor'; + $VAR3 = 'aroma'; + + + +Inherit from this package and you can make a resultset class from a view, but that's more than a little bit misleading: the result is B. + +This is accomplished through the use of stored functions that map changes written to the view to changes to the underlying concrete tables. + +=head1 WHY? + +In many applications, many classes are subclasses of others. Let's say you have this schema: + + # Conceptual domain model + + class User { + has id, + has name, + has password + } + + class Investor { + has id, + has name, + has password, + has dollars + } + +That's redundant. Hold on a sec... + + class User { + has id, + has name, + has password + } + + class Investor isa User { + has dollars + } + +Good idea, but how to put this into code? + +One far-too common and absolutely horrendous solution is to have a "checkbox" in your database: a nullable "investor" column, which entails a nullable "dollars" column, in the user table. + + create table "user" ( + "id" integer not null primary key autoincrement, + "name" text not null, + "password" text not null, + "investor" tinyint(1), + "dollars" integer + ); + +Let's not discuss that further. + +A second, better, solution is to break out the two tables into user and investor: + + create table "user" ( + "id" integer not null primary key autoincrement, + "name" text not null, + "password" text not null + ); + + create table "investor" ( + "id" integer not null references user("id"), + "dollars" integer + ); + +So that investor's PK is just an FK to the user. We can clearly see the class hierarchy here, in which investor is a subclass of user. In DBIx::Class applications, this second strategy looks like: + + my $user_rs = $schema->resultset('User'); + my $new_user = $user_rs->create( + name => $args->{name}, + password => $args->{password}, + ); + + ... + + my $new_investor = $schema->resultset('Investor')->create( + id => $new_user->id, + dollars => $args->{dollars}, + ); + +One can cope well with the second strategy, and it seems to be the most popular smart choice. + +=head1 HOW? + +There is a third strategy implemented here. Make the database do more of the work. It'll save us some typing and it'll make for more expressive code. What if we could do this: + + my $new_investor = $schema->resultset('Investor')->create( + name => $args->{name}, + password => $args->{password}, + dollars => $args->{dollars}, + ); + +And have it Just Work? The user ( {name => $args->{name}, password => $args->{password} } ) should be created transparently, and the use of either user or investor in your code should require no special handling. Deleting and updating $new_investor should also delete or update the user row. + +It does. User and investor are both views, their concrete tables abstracted away behind a set of rules and triggers. You would expect the above DBIC create statement to look like this in SQL: + + INSERT INTO investor ("name","password","dollars") VALUES (...); + +But using MTI, it is really this: + + INSERT INTO _user_table ("username","password") VALUES (...); + INSERT INTO _investor_table ("id","dollars") VALUES (currval('_user_table_id_seq',...) ); + +For deletes, the triggers fire in reverse, to preserve referential integrity (foreign key constraints). For instance: + + my $investor = $schema->resultset('Investor')->find({id => $args->{id}}); + $investor->delete; + +Becomes: + + DELETE FROM _investor_table WHERE ("id" = ?); + DELETE FROM _user_table WHERE ("id" = ?); + + + + + + + + +=head1 AUTHOR + +Matt S. Trout, Emst@shadowcatsystems.co.ukE + +=head2 CONTRIBUTORS + +Docs: Amiri Barksdale, Eamiri@metalabel.comE + +=head1 LICENSE + +This library is free software; you can redistribute it and/or modify +it under the same terms as Perl itself. + +=head1 SEE ALSO + +L +L + +=cut diff --git a/pm_to_blib b/pm_to_blib new file mode 100644 index 0000000..e69de29 diff --git a/pod2htmd.tmp b/pod2htmd.tmp new file mode 100644 index 0000000..61e86d9 --- /dev/null +++ b/pod2htmd.tmp @@ -0,0 +1,2 @@ + +. diff --git a/pod2htmi.tmp b/pod2htmi.tmp new file mode 100644 index 0000000..61e86d9 --- /dev/null +++ b/pod2htmi.tmp @@ -0,0 +1,2 @@ + +. diff --git a/t/01load.t b/t/01load.t index dd10a1b..4d9d24c 100644 --- a/t/01load.t +++ b/t/01load.t @@ -11,7 +11,7 @@ my $raw_foo = MTITest->source('Raw::Foo'); is_deeply( [ $raw_foo->columns ], [ qw(id a) ], - 'Columns for raw foo ok' + 'Columns for raw foo ok: id a' ); my $raw_bar = MTITest->source('Raw::Bar'); @@ -19,6 +19,7 @@ my $raw_bar = MTITest->source('Raw::Bar'); is_deeply( [ $raw_bar->columns ], [ qw(id b) ], + 'Columns for raw bar ok: id b' ); ok($raw_bar->has_relationship('parent'), 'parent rel exists');