.\" Automatically generated by Pod::Man v1.37, Pod::Parser v1.32 .\" .\" Standard preamble: .\" ======================================================================== .de Sh \" Subsection heading .br .if t .Sp .ne 5 .PP \fB\\$1\fR .PP .. .de Sp \" Vertical space (when we can't use .PP) .if t .sp .5v .if n .sp .. .de Vb \" Begin verbatim text .ft CW .nf .ne \\$1 .. .de Ve \" End verbatim text .ft R .fi .. .\" Set up some character translations and predefined strings. \*(-- will .\" give an unbreakable dash, \*(PI will give pi, \*(L" will give a left .\" double quote, and \*(R" will give a right double quote. | will give a .\" real vertical bar. \*(C+ will give a nicer C++. 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Functions are provided to read and write _packlist files. The original _packlist format is a simple list of absolute pathnames, one per line. In addition, this package supports an extended format, where as well as a filename each line may contain a list of attributes in the form of a space separated list of key=value pairs. This is used by the installperl script to differentiate between files and links, for example. .SH "USAGE" .IX Header "USAGE" The hash reference returned by the \fInew()\fR function can be used to examine and modify the contents of the _packlist. Items may be added/deleted from the _packlist by modifying the hash. If the value associated with a hash key is a scalar, the entry written to the _packlist by any subsequent \fIwrite()\fR will be a simple filename. If the value is a hash, the entry written will be the filename followed by the key=value pairs from the hash. Reading back the _packlist will recreate the original entries. .SH "FUNCTIONS" .IX Header "FUNCTIONS" .IP "\fInew()\fR" 4 .IX Item "new()" This takes an optional parameter, the name of a _packlist. If the file exists, it will be opened and the contents of the file will be read. The \fInew()\fR method returns a reference to a hash. This hash holds an entry for each line in the _packlist. In the case of old-style _packlists, the value associated with each key is undef. In the case of new-style _packlists, the value associated with each key is a hash containing the key=value pairs following the filename in the _packlist. .IP "\fIread()\fR" 4 .IX Item "read()" This takes an optional parameter, the name of the _packlist to be read. If no file is specified, the _packlist specified to \fInew()\fR will be read. If the _packlist does not exist, Carp::croak will be called. .IP "\fIwrite()\fR" 4 .IX Item "write()" This takes an optional parameter, the name of the _packlist to be written. If no file is specified, the _packlist specified to \fInew()\fR will be overwritten. .IP "\fIvalidate()\fR" 4 .IX Item "validate()" This checks that every file listed in the _packlist actually exists. If an argument which evaluates to true is given, any missing files will be removed from the internal hash. The return value is a list of the missing files, which will be empty if they all exist. .IP "\fIpacklist_file()\fR" 4 .IX Item "packlist_file()" This returns the name of the associated _packlist file .SH "EXAMPLE" .IX Header "EXAMPLE" Here's \f(CW\*(C`modrm\*(C'\fR, a little utility to cleanly remove an installed module. .PP .Vb 1 \& #!/usr/local/bin/perl -w .Ve .PP .Vb 4 \& use strict; \& use IO::Dir; \& use ExtUtils::Packlist; \& use ExtUtils::Installed; .Ve .PP .Vb 7 \& sub emptydir($) { \& my ($dir) = @_; \& my $dh = IO::Dir->new($dir) || return(0); \& my @count = $dh->read(); \& $dh->close(); \& return(@count == 2 ? 1 : 0); \& } .Ve .PP .Vb 3 \& # Find all the installed packages \& print("Finding all installed modules...\en"); \& my $installed = ExtUtils::Installed->new(); .Ve .PP .Vb 22 \& foreach my $module (grep(!/^Perl$/, $installed->modules())) { \& my $version = $installed->version($module) || "???"; \& print("Found module $module Version $version\en"); \& print("Do you want to delete $module? [n] "); \& my $r = ; chomp($r); \& if ($r && $r =~ /^y/i) { \& # Remove all the files \& foreach my $file (sort($installed->files($module))) { \& print("rm $file\en"); \& unlink($file); \& } \& my $pf = $installed->packlist($module)->packlist_file(); \& print("rm $pf\en"); \& unlink($pf); \& foreach my $dir (sort($installed->directory_tree($module))) { \& if (emptydir($dir)) { \& print("rmdir $dir\en"); \& rmdir($dir); \& } \& } \& } \& } .Ve .SH "AUTHOR" .IX Header "AUTHOR" Alan Burlison