1 package ExtUtils::Install;
3 $VERSION = substr q$Revision: 1.16 $, 10;
4 # $Date: 1996/12/17 00:31:26 $
9 use vars qw(@ISA @EXPORT $VERSION);
11 @EXPORT = ('install','uninstall','pm_to_blib');
12 $Is_VMS = $^O eq 'VMS';
14 my $splitchar = $^O eq 'VMS' ? '|' : $^O eq 'os2' ? ';' : ':';
15 my @PERL_ENV_LIB = split $splitchar, defined $ENV{'PERL5LIB'} ? $ENV{'PERL5LIB'} : $ENV{'PERLLIB'};
16 my $Inc_uninstall_warn_handler;
18 #use vars qw( @EXPORT @ISA $Is_VMS );
23 unlink $_[0] or Carp::croak("Cannot forceunlink $_[0]: $!")
27 my($hash,$verbose,$nonono,$inc_uninstall) = @_;
32 use ExtUtils::MakeMaker; # to implement a MY class
33 use File::Basename qw(dirname);
34 use File::Copy qw(copy);
35 use File::Find qw(find);
36 use File::Path qw(mkpath);
39 my(%pack, %write, $dir, $warn_permissions);
41 for (qw/read write/) {
45 my($source_dir_or_file);
46 foreach $source_dir_or_file (sort keys %hash) {
47 #Check if there are files, and if yes, look if the corresponding
48 #target directory is writable for us
49 opendir DIR, $source_dir_or_file or next;
51 next if $_ eq "." || $_ eq ".." || $_ eq ".exists";
52 if (-w $hash{$source_dir_or_file} || mkpath($hash{$source_dir_or_file})) {
55 warn "Warning: You do not have permissions to install into $hash{$source_dir_or_file}"
56 unless $warn_permissions++;
61 if (-f $pack{"read"}) {
62 open P, $pack{"read"} or Carp::croak("Couldn't read $pack{'read'}");
63 # Remember what you found
71 my $umask = umask 0 unless $Is_VMS;
73 # This silly reference is just here to be able to call MY->catdir
74 # without a warning (Waiting for a proper path/directory module,
79 MOD_INSTALL: foreach $source (sort keys %hash) {
80 #copy the tree to the target directory without altering
81 #timestamp and permission and remember for the .packlist
82 #file. The packlist file contains the absolute paths of the
83 #install locations. AFS users may call this a bug. We'll have
84 #to reconsider how to add the means to satisfy AFS users also.
85 chdir($source) or next;
87 my ($dev,$ino,$mode,$nlink,$uid,$gid,$rdev,$size,
88 $atime,$mtime,$ctime,$blksize,$blocks) = stat;
90 return if $_ eq ".exists";
91 my $targetdir = $MY->catdir($hash{$source},$File::Find::dir);
92 my $targetfile = $MY->catfile($targetdir,$_);
95 if ( -f $targetfile && -s _ == $size) {
96 # We have a good chance, we can skip this one
97 $diff = my_cmp($_,$targetfile);
99 print "$_ differs\n" if $verbose>1;
105 forceunlink($targetfile) unless $nonono;
107 mkpath($targetdir,0,0755) unless $nonono;
108 print "mkpath($targetdir,0,0755)\n" if $verbose>1;
110 copy($_,$targetfile) unless $nonono;
111 print "Installing $targetfile\n";
112 utime($atime,$mtime + $Is_VMS,$targetfile) unless $nonono>1;
113 print "utime($atime,$mtime,$targetfile)\n" if $verbose>1;
114 $mode = 0444 | ( $mode & 0111 ? 0111 : 0 );
115 chmod $mode, $targetfile;
116 print "chmod($mode, $targetfile)\n" if $verbose>1;
118 print "Skipping $targetfile (unchanged)\n" if $verbose;
121 if (! defined $inc_uninstall) { # it's called
122 } elsif ($inc_uninstall == 0){
123 inc_uninstall($_,$File::Find::dir,$verbose,1); # nonono set to 1
125 inc_uninstall($_,$File::Find::dir,$verbose,0); # nonono set to 0
127 $write{$targetfile}++;
130 chdir($cwd) or Carp::croak("Couldn't chdir to $cwd: $!");
132 umask $umask unless $Is_VMS;
133 if ($pack{'write'}) {
134 $dir = dirname($pack{'write'});
136 print "Writing $pack{'write'}\n";
137 open P, ">$pack{'write'}" or Carp::croak("Couldn't write $pack{'write'}: $!");
138 for (sort keys %write) {
149 open T, $two or return 1;
150 open F, $one or Carp::croak("Couldn't open $one: $!");
151 my($fr, $tr, $fbuf, $tbuf, $size);
153 # print "Reading $one\n";
154 while ( $fr = read(F,$fbuf,$size)) {
156 $tr = read(T,$tbuf,$size) and
172 my($fil,$verbose,$nonono) = @_;
173 die "no packlist file found: $fil" unless -f $fil;
174 # my $my_req = $self->catfile(qw(auto ExtUtils Install forceunlink.al));
175 # require $my_req; # Hairy, but for the first
177 open P, $fil or Carp::croak("uninstall: Could not read packlist file $fil: $!");
180 print "unlink $_\n" if $verbose;
181 forceunlink($_) unless $nonono;
183 print "unlink $fil\n" if $verbose;
184 forceunlink($fil) unless $nonono;
188 my($file,$libdir,$verbose,$nonono) = @_;
193 foreach $dir (@INC, @PERL_ENV_LIB, @Config::Config{qw/archlibexp privlibexp sitearchexp sitelibexp/}) {
195 next if $seen_dir{$dir}++;
196 my($targetfile) = $MY->catfile($dir,$libdir,$file);
197 next unless -f $targetfile;
199 # The reason why we compare file's contents is, that we cannot
200 # know, which is the file we just installed (AFS). So we leave
201 # an identical file in place
203 if ( -f $targetfile && -s _ == -s $file) {
204 # We have a good chance, we can skip this one
205 $diff = my_cmp($file,$targetfile);
207 print "#$file and $targetfile differ\n" if $verbose>1;
214 $Inc_uninstall_warn_handler ||= new ExtUtils::Install::Warn;
215 $libdir =~ s|^\./|| ; # That's just cosmetics, no need to port. It looks prettier.
216 $Inc_uninstall_warn_handler->add("$libdir/$file",$targetfile);
218 # if not verbose, we just say nothing
220 print "Unlinking $targetfile (shadowing?)\n";
221 forceunlink($targetfile);
227 my($fromto,$autodir) = @_;
229 use File::Basename qw(dirname);
230 use File::Copy qw(copy);
231 use File::Path qw(mkpath);
233 # my $my_req = $self->catfile(qw(auto ExtUtils Install forceunlink.al));
234 # require $my_req; # Hairy, but for the first
236 my $umask = umask 0022 unless $Is_VMS;
237 mkpath($autodir,0,0755);
238 foreach (keys %$fromto) {
239 next if -f $fromto->{$_} && -M $fromto->{$_} < -M $_;
240 unless (my_cmp($_,$fromto->{$_})){
241 print "Skip $fromto->{$_} (unchanged)\n";
244 if (-f $fromto->{$_}){
245 forceunlink($fromto->{$_});
247 mkpath(dirname($fromto->{$_}),0,0755);
249 copy($_,$fromto->{$_});
250 my($mode,$atime,$mtime) = (stat)[2,8,9];
251 utime($atime,$mtime+$Is_VMS,$fromto->{$_});
252 chmod(0444 | ( $mode & 0111 ? 0111 : 0 ),$fromto->{$_});
253 print "cp $_ $fromto->{$_}\n";
255 autosplit($fromto->{$_},$autodir);
257 umask $umask unless $Is_VMS;
260 package ExtUtils::Install::Warn;
262 sub new { bless {}, shift }
265 my($self,$file,$targetfile) = @_;
266 push @{$self->{$file}}, $targetfile;
271 my($file,$i,$plural);
272 foreach $file (sort keys %$self) {
273 $plural = @{$self->{$file}} > 1 ? "s" : "";
274 print "## Differing version$plural of $file found. You might like to\n";
275 for (0..$#{$self->{$file}}) {
276 print "rm ", $self->{$file}[$_], "\n";
280 $plural = $i>1 ? "all those files" : "this file";
281 print "## Running 'make install UNINST=1' will unlink $plural for you.\n";
290 ExtUtils::Install - install files from here to there
294 B<use ExtUtils::Install;>
296 B<install($hashref,$verbose,$nonono);>
298 B<uninstall($packlistfile,$verbose,$nonono);>
300 B<pm_to_blib($hashref);>
304 Both install() and uninstall() are specific to the way
305 ExtUtils::MakeMaker handles the installation and deinstallation of
306 perl modules. They are not designed as general purpose tools.
308 install() takes three arguments. A reference to a hash, a verbose
309 switch and a don't-really-do-it switch. The hash ref contains a
310 mapping of directories: each key/value pair is a combination of
311 directories to be copied. Key is a directory to copy from, value is a
312 directory to copy to. The whole tree below the "from" directory will
313 be copied preserving timestamps and permissions.
315 There are two keys with a special meaning in the hash: "read" and
316 "write". After the copying is done, install will write the list of
317 target files to the file named by C<$hashref-E<gt>{write}>. If there is
318 another file named by C<$hashref-E<gt>{read}>, the contents of this file will
319 be merged into the written file. The read and the written file may be
320 identical, but on AFS it is quite likely, people are installing to a
321 different directory than the one where the files later appear.
323 uninstall() takes as first argument a file containing filenames to be
324 unlinked. The second argument is a verbose switch, the third is a
325 no-don't-really-do-it-now switch.
327 pm_to_blib() takes a hashref as the first argument and copies all keys
328 of the hash to the corresponding values efficiently. Filenames with
329 the extension pm are autosplit. Second argument is the autosplit