--- /dev/null
+#!/usr/bin/perl
+#
+# bump-perl-version, DAPM 14 Jul 2009
+#
+# A utility to find, and optionally bump, references to the perl version
+# number in various files within the perl source
+#
+# It's designed to work in two phases. First, when run with -s (scan),
+# it searches all the files in MANIFEST looking for strings that appear to
+# match the current perl version (or which it knows are *supposed* to
+# contain the current version), and produces a list of them to stdout,
+# along with a suggested edit. For example:
+#
+# $ Porting/bump-perl-version -s 5.10.0 5.10.1 > /tmp/scan
+# $ cat /tmp/scan
+# Porting/config.sh
+#
+# 52: -archlib='/opt/perl/lib/5.10.0/i686-linux-64int'
+# +archlib='/opt/perl/lib/5.10.1/i686-linux-64int'
+# ....
+#
+# At this point there will be false positives. Edit the file to remove
+# those changes you don't want made. Then in the second phase, feed that
+# list in, and it will change those lines in the files:
+#
+# $ Porting/bump-perl-version -u < /tmp/scan
+#
+# (so line 52 of Porting/config.sh is now updated)
+
+# This utility 'knows' about certain files and formats, and so can spot
+# 'hidden' version numbers, like PERL_SUBVERSION=9.
+#
+# A third variant makes use of this knowledge to check that all the things
+# it knows about are at the current version:
+#
+# $ Porting/bump-perl-version -c 5.10.0
+#
+# XXX this script hasn't been tested against a major version bump yet,
+# eg 5.11.0 to 5.12.0; there may be things it missed - DAPM 14 Jul 09
+#
+# Note there are various files and directories that it skips; these are
+# ones that are unlikely to contain anything needing bumping, but which
+# will generate lots fo false positives (eg pod/*). These are listed on
+# STDERR as they are skipped.
+
+use strict;
+use warnings;
+use Getopt::Std;
+use ExtUtils::Manifest;
+
+
+sub usage { die <<EOF }
+
+@_
+
+usage: $0 -c <C.C.C>
+ -s <C.C.C> <N.N.N>
+ -u
+
+ -c check files and warn if any known string values (eg
+ PERL_SUBVERSION) don't match the specified version
+
+ -s scan files and produce list of possible change lines to stdout
+
+ -u read in the scan file from stdin, and change all the lines specified
+
+ C.C.C the current perl version, eg 5.10.0
+ N.N.N the new perl version, eg 5.10.1
+EOF
+
+my %opts;
+getopts('csu', \%opts) or usage;
+if ($opts{u}) {
+ @ARGV == 0 or usage('no version version numbers should be speciied');
+ # fake to stop warnings when calculating $oldx etc
+ @ARGV = qw(99.99.99 99.99.99);
+}
+elsif ($opts{c}) {
+ @ARGV == 1 or usage('required one version number');
+ push @ARGV, $ARGV[0];
+}
+else {
+ @ARGV == 2 or usage('require two version numbers');
+}
+usage('only one of -c, -s and -u') if keys %opts > 1;
+
+my ($oldx, $oldy, $oldz) = $ARGV[0] =~ /^(\d+)\.(\d+)\.(\d+)$/
+ or usage("bad version: $ARGV[0]");
+my ($newx, $newy, $newz) = $ARGV[1] =~ /^(\d+)\.(\d+)\.(\d+)$/
+ or usage("bad version: $ARGV[1]");
+
+my $old_decimal = sprintf "%d.%03d%03d", $oldx, $oldy, $oldz; # 5.011001
+
+# each entry is
+# 0 a regexp that matches strings that might contain versions;
+# 1 a sub that returns two strings based on $1 etc values:
+# * string containing captured values (for -c)
+# * a string containing the replacement value
+# 2 what we expect the sub to return as its first arg; undef implies
+# don't match
+# 3 a regex restricting which files this applies to (undef is all files)
+#
+# Note that @maps entries are checks in order, and only the first to match
+# is used.
+
+my @maps = (
+ [
+ qr{^((?:api_)?version(?:=|\s+)'?) (\d+) ('?) (?!\.)}x,
+ sub { $2, "$1$newy$3" },
+ $oldy,
+ qr/config/,
+ ],
+ [
+ qr{^(subversion(?:=|\s+)'?) (\d+) ('?) (?!\.)}x,
+ sub { $2, "$1$newz$3" },
+ $oldz,
+ qr/config/,
+ ],
+ [
+ qr{^(api_subversion(?:=|\s+)'?) (\d+) ('?) (?!\.)}x,
+ sub { $2, "${1}0$3" },
+ 0,
+ qr/config/,
+ ],
+ [
+ qr{^(api_versionstring(?:=|\s+)'?) ([\d\.]+) ('?) (?!\.)}x,
+ sub { $2, "$1$newx.$newy.0$3" },
+ "$oldx.$oldy.0",
+ qr/config/,
+ ],
+ [
+ qr{(version\s+'?) (\d+) ('?\s+subversion\s+'?) (\d+) ('?) (?!\.)}x,
+ sub { "$2-$4", "$1$newy$3$newz$5" },
+ "$oldy-$oldz",
+ qr/config/,
+ ],
+ [
+ qr{\b (PERL_(?:API_)?VERSION(?:=|\s+)'?) (\d+) ('?) (?!\.)}x,
+ sub { $2, "$1$newy$3"},
+ $oldy,
+ ],
+ [
+ qr{\b (PERL_SUBVERSION(?:=|\s+)'?) (\d+) ('?) (?!\.)}x,
+ sub { $2, "$1$newz$3"},
+ $oldz,
+ ],
+ [
+ qr{\b (PERL_API_SUBVERSION(?:=|\s+)'?) (\d+) ('?) (?!\.)}x,
+ sub { $2, "${1}0$3"},
+ 0,
+ ],
+ # these two formats are in README.vms
+ [
+ qr{\b perl-(\d+\^\.\d+\^\.\d+) \b}x,
+ sub { $1, "perl-$newx^.$newy^.$newz"},
+ undef,
+ ],
+ [
+ qr{\b ($oldx _ $oldy _$oldz) \b}x,
+ sub { $1, ($newx . '_' . $newy . '_' . $newz)},
+ undef,
+ ],
+ # 5.8.9
+ [
+ qr{\b $oldx\.$oldy\.$oldz \b}x,
+ sub {"", "$newx.$newy.$newz"},
+ undef,
+ ],
+
+ # 5.008009
+ [
+ qr{\b $old_decimal \b}x,
+ sub {"", sprintf "%d.%03d%03d", $newx, $newy, $newz },
+ undef,
+ ],
+
+);
+
+
+# files and dirs that we likely don't want to change version numbers on.
+
+my %SKIP_FILES = map { ($_ => 1) } qw(
+ Changes
+ MANIFEST
+ Porting/how_to_write_a_perldelta.pod
+ Porting/mergelog
+ Porting/mergelog-tool
+ pod.lst
+);
+my @SKIP_DIRS = qw(
+ ext
+ lib
+ pod
+ t
+);
+
+my @mani_files = sort keys %{ExtUtils::Manifest::maniread('MANIFEST')};
+my %mani_files = map { ($_ => 1) } @mani_files;
+die "No entries found in MANIFEST; aborting\n" unless @mani_files;
+
+if ($opts{c} or $opts{s}) {
+ do_scan();
+}
+elsif ($opts{u}) {
+ do_update();
+}
+else {
+ usage('one of -c, -s or -u must be specifcied');
+}
+exit 0;
+
+
+
+
+sub do_scan {
+ for my $file (@mani_files) {
+ next if grep $file =~ m{$_/}, @SKIP_DIRS;
+ if ($SKIP_FILES{$file}) {
+ warn "(skipping $file)\n";
+ next;
+ }
+ open my $fh, '<', $file or die "Aborting: can't open $file: $!\n";
+ my $header = 0;
+
+ while (<$fh>) {
+ for my $map (@maps) {
+ my ($pat, $sub, $expected, $file_pat) = @$map;
+
+ next if defined $file_pat and $file !~ $file_pat;
+ next unless $_ =~ $pat;
+ my ($got, $replacement) = $sub->();
+
+ if ($opts{c}) {
+ # only report unexpected
+ next unless defined $expected and $got ne $expected;
+ }
+ my $newstr = $_;
+ $newstr =~ s/$pat/$replacement/
+ or die "Internal error: substitution failed: [$pat]\n";
+ if ($_ ne $newstr) {
+ print "\n$file\n" unless $header;
+ $header=1;
+ printf "\n%5d: -%s +%s", $., $_, $newstr;
+ }
+ last;
+ }
+ }
+ }
+ warn "(skipped $_/*)\n" for @SKIP_DIRS;
+}
+
+sub do_update {
+
+ my %changes;
+ my $file;
+ my $line;
+
+ # read in config
+
+ while (<STDIN>) {
+ next unless /\S/;
+ if (/^(\S+)$/) {
+ $file = $1;
+ die "No such file in MANIFEST: '$file'\n" unless $mani_files{$file};
+ die "file already seen; '$file'\n" if exists $changes{$file};
+ undef $line;
+ }
+ elsif (/^\s+(\d+): -(.*)/) {
+ my $old;
+ ($line, $old) = ($1,$2);
+ die "$.: old line without preceeding filename\n"
+ unless defined $file;
+ die "Dup line number: $line\n" if exists $changes{$file}{$line};
+ $changes{$file}{$line}[0] = $old;
+ }
+ elsif (/^\s+\+(.*)/) {
+ my $new = $1;
+ die "$.: replacement line seen without old line\n" unless $line;
+ $changes{$file}{$line}[1] = $new;
+ undef $line;
+ }
+ else {
+ die "Unexpected line at ;line $.: $_\n";
+ }
+ }
+
+ # suck in file contents to memory, then update that in-memory copy
+
+ my %contents;
+ for my $file (sort keys %changes) {
+ open my $fh, '<', $file or die "open '$file': $!\n";
+ $contents{$file} = [ <$fh> ];
+ chomp @{$contents{$file}};
+ close $fh or die "close: '$file': $!\n";
+
+ my $entries = $changes{$file};
+ for my $line (keys %$entries) {
+ die "$file: no such line: $line\n"
+ unless defined $contents{$file}[$line-1];
+ if ($contents{$file}[$line-1] ne $entries->{$line}[0]) {
+ die "$file: line mismatch at line $line:\n"
+ . "File: [$contents{$file}[$line-1]]\n"
+ . "Config: [$entries->{$line}[0]]\n"
+ }
+ $contents{$file}[$line-1] = $entries->{$line}[1];
+ }
+ }
+
+ # check the temp files don't already exist
+
+ for my $file (sort keys %contents) {
+ my $nfile = "$file-new";
+ die "$nfile already exists in MANIFEST; aborting\n"
+ if $mani_files{$nfile};
+ }
+
+ # write out the new files
+
+ for my $file (sort keys %contents) {
+ my $nfile = "$file-new";
+ open my $fh, '>', $nfile or die "create '$nfile' failed: $!\n";
+ print $fh $_, "\n" for @{$contents{$file}};
+ close $fh or die "failed to close $nfile; aborting: $!\n";
+
+ my @stat = stat $file or die "Can't stat $file: $!\n";
+ my $mode = $stat[2];
+ die "stat $file fgailed to give a mode!\n" unless defined $mode;
+ chmod $mode & 0777, $nfile or die "chmod $nfile failed; aborting: $!\n";
+ }
+
+ # and rename them
+
+ for my $file (sort keys %contents) {
+ my $nfile = "$file-new";
+ warn "updating $file ...\n";
+ rename $nfile, $file or die "rename $nfile $file: $!\n";
+ }
+}
+