package ExtUtils::Install; $VERSION = substr q$Revision: 1.28 $, 10; # $Date: 1998/01/25 07:08:24 $ use Exporter; use Carp (); use Config qw(%Config); use vars qw(@ISA @EXPORT $VERSION); @ISA = ('Exporter'); @EXPORT = ('install','uninstall','pm_to_blib', 'install_default'); $Is_VMS = $^O eq 'VMS'; my $splitchar = $^O eq 'VMS' ? '|' : ($^O eq 'os2' || $^O eq 'dos') ? ';' : ':'; my @PERL_ENV_LIB = split $splitchar, defined $ENV{'PERL5LIB'} ? $ENV{'PERL5LIB'} : $ENV{'PERLLIB'} || ''; my $Inc_uninstall_warn_handler; #use vars qw( @EXPORT @ISA $Is_VMS ); #use strict; sub forceunlink { chmod 0666, $_[0]; unlink $_[0] or Carp::croak("Cannot forceunlink $_[0]: $!") } sub install { my($hash,$verbose,$nonono,$inc_uninstall) = @_; $verbose ||= 0; $nonono ||= 0; use Cwd qw(cwd); use ExtUtils::MakeMaker; # to implement a MY class use ExtUtils::Packlist; use File::Basename qw(dirname); use File::Copy qw(copy); use File::Find qw(find); use File::Path qw(mkpath); use File::Compare qw(compare); my(%hash) = %$hash; my(%pack, $dir, $warn_permissions); my($packlist) = ExtUtils::Packlist->new(); # -w doesn't work reliably on FAT dirs $warn_permissions++ if $^O eq 'MSWin32'; local(*DIR); for (qw/read write/) { $pack{$_}=$hash{$_}; delete $hash{$_}; } my($source_dir_or_file); foreach $source_dir_or_file (sort keys %hash) { #Check if there are files, and if yes, look if the corresponding #target directory is writable for us opendir DIR, $source_dir_or_file or next; for (readdir DIR) { next if $_ eq "." || $_ eq ".." || $_ eq ".exists"; if (-w $hash{$source_dir_or_file} || mkpath($hash{$source_dir_or_file})) { last; } else { warn "Warning: You do not have permissions to " . "install into $hash{$source_dir_or_file}" unless $warn_permissions++; } } closedir DIR; } $packlist->read($pack{"read"}) if (-f $pack{"read"}); my $cwd = cwd(); my $umask = umask 0 unless $Is_VMS; my($source); MOD_INSTALL: foreach $source (sort keys %hash) { #copy the tree to the target directory without altering #timestamp and permission and remember for the .packlist #file. The packlist file contains the absolute paths of the #install locations. AFS users may call this a bug. We'll have #to reconsider how to add the means to satisfy AFS users also. #October 1997: we want to install .pm files into archlib if #there are any files in arch. So we depend on having ./blib/arch #hardcoded here. my $targetroot = $hash{$source}; if ($source eq "blib/lib" and exists $hash{"blib/arch"} and directory_not_empty("blib/arch")) { $targetroot = $hash{"blib/arch"}; print "Files found in blib/arch --> Installing files in " . "blib/lib into architecture dependend library tree!\n" ; #if $verbose>1; } chdir($source) or next; find(sub { my ($dev,$ino,$mode,$nlink,$uid,$gid,$rdev,$size, $atime,$mtime,$ctime,$blksize,$blocks) = stat; return unless -f _; return if $_ eq ".exists"; my $targetdir = MY->catdir($targetroot,$File::Find::dir); my $targetfile = MY->catfile($targetdir,$_); my $diff = 0; if ( -f $targetfile && -s _ == $size) { # We have a good chance, we can skip this one $diff = compare($_,$targetfile); } else { print "$_ differs\n" if $verbose>1; $diff++; } if ($diff){ if (-f $targetfile){ forceunlink($targetfile) unless $nonono; } else { mkpath($targetdir,0,0755) unless $nonono; print "mkpath($targetdir,0,0755)\n" if $verbose>1; } copy($_,$targetfile) unless $nonono; print "Installing $targetfile\n"; utime($atime,$mtime + $Is_VMS,$targetfile) unless $nonono>1; print "utime($atime,$mtime,$targetfile)\n" if $verbose>1; $mode = 0444 | ( $mode & 0111 ? 0111 : 0 ); chmod $mode, $targetfile; print "chmod($mode, $targetfile)\n" if $verbose>1; } else { print "Skipping $targetfile (unchanged)\n" if $verbose; } if (! defined $inc_uninstall) { # it's called } elsif ($inc_uninstall == 0){ inc_uninstall($_,$File::Find::dir,$verbose,1); # nonono set to 1 } else { inc_uninstall($_,$File::Find::dir,$verbose,0); # nonono set to 0 } $packlist->{$targetfile}++; }, "."); chdir($cwd) or Carp::croak("Couldn't chdir to $cwd: $!"); } umask $umask unless $Is_VMS; if ($pack{'write'}) { $dir = dirname($pack{'write'}); mkpath($dir,0,0755); print "Writing $pack{'write'}\n"; $packlist->write($pack{'write'}); } } sub directory_not_empty ($) { my($dir) = @_; my $files = 0; find(sub { return if $_ eq ".exists"; if (-f) { $File::Find::prune++; $files = 1; } }, $dir); return $files; } sub install_default { @_ < 2 or die "install_default should be called with 0 or 1 argument"; my $FULLEXT = @_ ? shift : $ARGV[0]; defined $FULLEXT or die "Do not know to where to write install log"; my $INST_LIB = MM->catdir(MM->curdir,"blib","lib"); my $INST_ARCHLIB = MM->catdir(MM->curdir,"blib","arch"); my $INST_BIN = MM->catdir(MM->curdir,'blib','bin'); my $INST_SCRIPT = MM->catdir(MM->curdir,'blib','script'); my $INST_MAN1DIR = MM->catdir(MM->curdir,'blib','man1'); my $INST_MAN3DIR = MM->catdir(MM->curdir,'blib','man3'); install({ read => "$Config{sitearchexp}/auto/$FULLEXT/.packlist", write => "$Config{installsitearch}/auto/$FULLEXT/.packlist", $INST_LIB => (directory_not_empty($INST_ARCHLIB)) ? $Config{installsitearch} : $Config{installsitelib}, $INST_ARCHLIB => $Config{installsitearch}, $INST_BIN => $Config{installbin} , $INST_SCRIPT => $Config{installscript}, $INST_MAN1DIR => $Config{installman1dir}, $INST_MAN3DIR => $Config{installman3dir}, },1,0,0); } sub uninstall { use ExtUtils::Packlist; my($fil,$verbose,$nonono) = @_; die "no packlist file found: $fil" unless -f $fil; # my $my_req = $self->catfile(qw(auto ExtUtils Install forceunlink.al)); # require $my_req; # Hairy, but for the first my ($packlist) = ExtUtils::Packlist->new($fil); foreach (sort(keys(%$packlist))) { chomp; print "unlink $_\n" if $verbose; forceunlink($_) unless $nonono; } print "unlink $fil\n" if $verbose; close P; forceunlink($fil) unless $nonono; } sub inc_uninstall { my($file,$libdir,$verbose,$nonono) = @_; my($dir); my %seen_dir = (); foreach $dir (@INC, @PERL_ENV_LIB, @Config{qw(archlibexp privlibexp sitearchexp sitelibexp)}) { next if $dir eq "."; next if $seen_dir{$dir}++; my($targetfile) = MY->catfile($dir,$libdir,$file); next unless -f $targetfile; # The reason why we compare file's contents is, that we cannot # know, which is the file we just installed (AFS). So we leave # an identical file in place my $diff = 0; if ( -f $targetfile && -s _ == -s $file) { # We have a good chance, we can skip this one $diff = compare($file,$targetfile); } else { print "#$file and $targetfile differ\n" if $verbose>1; $diff++; } next unless $diff; if ($nonono) { if ($verbose) { $Inc_uninstall_warn_handler ||= new ExtUtils::Install::Warn; $libdir =~ s|^\./|| ; # That's just cosmetics, no need to port. It looks prettier. $Inc_uninstall_warn_handler->add("$libdir/$file",$targetfile); } # if not verbose, we just say nothing } else { print "Unlinking $targetfile (shadowing?)\n"; forceunlink($targetfile); } } } sub pm_to_blib { my($fromto,$autodir) = @_; use File::Basename qw(dirname); use File::Copy qw(copy); use File::Path qw(mkpath); use File::Compare qw(compare); use AutoSplit; # my $my_req = $self->catfile(qw(auto ExtUtils Install forceunlink.al)); # require $my_req; # Hairy, but for the first if (!ref($fromto) && -r $fromto) { # Win32 has severe command line length limitations, but # can generate temporary files on-the-fly # so we pass name of file here - eval it to get hash open(FROMTO,"<$fromto") or die "Cannot open $fromto:$!"; my $str = '$fromto = {qw{'.join('',).'}}'; eval $str; close(FROMTO); } my $umask = umask 0022 unless $Is_VMS; mkpath($autodir,0,0755); foreach (keys %$fromto) { next if -f $fromto->{$_} && -M $fromto->{$_} < -M $_; unless (compare($_,$fromto->{$_})){ print "Skip $fromto->{$_} (unchanged)\n"; next; } if (-f $fromto->{$_}){ forceunlink($fromto->{$_}); } else { mkpath(dirname($fromto->{$_}),0,0755); } copy($_,$fromto->{$_}); my($mode,$atime,$mtime) = (stat)[2,8,9]; utime($atime,$mtime+$Is_VMS,$fromto->{$_}); chmod(0444 | ( $mode & 0111 ? 0111 : 0 ),$fromto->{$_}); print "cp $_ $fromto->{$_}\n"; next unless /\.pm$/; autosplit($fromto->{$_},$autodir); } umask $umask unless $Is_VMS; } package ExtUtils::Install::Warn; sub new { bless {}, shift } sub add { my($self,$file,$targetfile) = @_; push @{$self->{$file}}, $targetfile; } sub DESTROY { my $self = shift; my($file,$i,$plural); foreach $file (sort keys %$self) { $plural = @{$self->{$file}} > 1 ? "s" : ""; print "## Differing version$plural of $file found. You might like to\n"; for (0..$#{$self->{$file}}) { print "rm ", $self->{$file}[$_], "\n"; $i++; } } $plural = $i>1 ? "all those files" : "this file"; print "## Running 'make install UNINST=1' will unlink $plural for you.\n"; } 1; __END__ =head1 NAME ExtUtils::Install - install files from here to there =head1 SYNOPSIS B B B B =head1 DESCRIPTION Both install() and uninstall() are specific to the way ExtUtils::MakeMaker handles the installation and deinstallation of perl modules. They are not designed as general purpose tools. install() takes three arguments. A reference to a hash, a verbose switch and a don't-really-do-it switch. The hash ref contains a mapping of directories: each key/value pair is a combination of directories to be copied. Key is a directory to copy from, value is a directory to copy to. The whole tree below the "from" directory will be copied preserving timestamps and permissions. There are two keys with a special meaning in the hash: "read" and "write". After the copying is done, install will write the list of target files to the file named by C<$hashref-E{write}>. If there is another file named by C<$hashref-E{read}>, the contents of this file will be merged into the written file. The read and the written file may be identical, but on AFS it is quite likely, people are installing to a different directory than the one where the files later appear. install_default() takes one or less arguments. If no arguments are specified, it takes $ARGV[0] as if it was specified as an argument. The argument is the value of MakeMaker's C key, like F. This function calls install() with the same arguments as the defaults the MakeMaker would use. The argumement-less form is convenient for install scripts like perl -MExtUtils::Install -e install_default Tk/Canvas Assuming this command is executed in a directory with populated F directory, it will proceed as if the F was build by MakeMaker on this machine. This is useful for binary distributions. uninstall() takes as first argument a file containing filenames to be unlinked. The second argument is a verbose switch, the third is a no-don't-really-do-it-now switch. pm_to_blib() takes a hashref as the first argument and copies all keys of the hash to the corresponding values efficiently. Filenames with the extension pm are autosplit. Second argument is the autosplit directory. =cut