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#!/usr/bin/perl
# a simple script to print the proper name for perl libraries.
# I plan to rewrite this in C so that perl is not required by RPM at
# build time.
# by Ken Estes Mail.com kestes@staff.mail.com
# it would be much better if perl could tell us the proper name of a
# given script.
if ("@ARGV") {
foreach (@ARGV) {
process_file($_);
}
} else {
# notice we are passed a list of filenames NOT as common in unix the
# contents of the file.
foreach (<>) {
process_file($_);
}
}
foreach $module (sort keys %require) {
if (length($require{$module}) == 0) {
print "perl($module)\n";
} else {
print "perl($module)=$require{$module}\n";
}
}
exit 0;
sub process_file {
my ($file) = @_;
chomp $file;
open(FILE, "<$file")||
die("$0: Could not open file: '$file' : $!\n");
my ($package, $version) = ();
while (<FILE>) {
# skip the documentation
if ( (m/^=(head1|head2|pod|item)/) .. (m/^=(cut)/) ) {
next;
}
if ( (m/^=(over)/) .. (m/^=(back)/) ) {
next;
}
# skip the data section
if (m/^__(DATA|END)__$/) {
last;
}
# not everyone puts the package name of the file as the first
# package name so we report all namespaces as if they were
# provided packages (really ugly).
if (m/^\s*package\s+([_:a-zA-Z0-9]+)\s*;/) {
$package=$1;
undef $version;
$require{$package}=undef;
}
# after we found the package name take the first assignment to
# $VERSION as the version number. Exporter requires that the
# variable be called VERSION so we are safe.
# here are examples of VERSION lines from the perl distribution
#FindBin.pm:$VERSION = $VERSION = sprintf("%d.%02d", q$Revision: 1.2 $ =~ /(\d+)\.(\d+)/);
#ExtUtils/Install.pm:$VERSION = substr q$Revision: 1.2 $, 10;
#CGI/Apache.pm:$VERSION = (qw$Revision: 1.2 $)[1];
#DynaLoader.pm:$VERSION = $VERSION = "1.03"; # avoid typo warning
if (
($package) &&
(m/^\s*\$VERSION\s*=\s+/)
) {
# first see if the version string contains the string
# '$Revision' this often causes bizzare strings and is the most
# common method of non static numbering.
if (m/(\$Revision: (\d+[.0-9]+))/) {
$version= $2;
} elsif (m/[\'\"]?(\d+[.0-9]+)[\'\"]?/) {
# look for a static number hard coded in the script
$version= $1;
}
$require{$package}=$version;
}
# Each keyword can appear multiple times. Don't
# bother with datastructures to store these strings,
# if we need to print it print it now.
if ( m/^\s*\$RPM_Provides\s*=\s*["'](.*)['"]/i) {
foreach $_ (spit(/\s+/, $1)) {
print "$_\n";
}
}
}
close(FILE)||
die("$0: Could not close file: '$file' : $!\n");
return ;
}
|
