[2812] | 1 | #!/usr/bin/perl -w
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| 2 | #
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| 3 | # Get perl modules required by mindi and mondo and that should be on the restore media
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| 4 | #
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| 5 | use strict;
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| 6 |
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| 7 | use File::Find;
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| 8 |
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| 9 | my $file = get_perl_modules(@ARGV) if (defined $ARGV[0]);
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| 10 |
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| 11 | foreach my $f (sort keys %$file) {
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| 12 | print "$f\n";
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| 13 | }
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| 14 |
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| 15 | sub get_perl_modules {
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| 16 |
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| 17 | my %files;
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| 18 |
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| 19 | #print "Searching in ";
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| 20 | #print join "\n", @INC;
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| 21 |
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| 22 | my $require = process_file(@_);
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| 23 |
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| 24 | find(
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| 25 | sub {
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| 26 | if ((-f $File::Find::name)
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| 27 | && (/\.pm$/)
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| 28 | && (not defined $files{$File::Find::name})) {
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| 29 | foreach my $m (keys %$require,"warnings") {
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| 30 | (my $mod = $m) =~ s|::|/|g;
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| 31 | #print "Looking at $mod in $File::Find::name\n";
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| 32 | if (index($File::Find::name,"$mod.pm") ne -1) {
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| 33 | $files{$File::Find::name} = $mod;
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| 34 | #push @files, $File::Find::name;
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| 35 | #print "Found $mod in $File::Find::name\n";
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| 36 | last;
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| 37 | }
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| 38 | }
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| 39 | }
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| 40 | },
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| 41 | @INC);
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| 42 |
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| 43 | return(\%files);
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| 44 | }
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| 45 |
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| 46 | # Adapted From /usr/lib/rpm/mandriva/perl.req
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| 47 | # by Ken Estes Mail.com kestes@staff.mail.com
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| 48 |
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| 49 | sub process_file {
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| 50 |
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| 51 | my %line;
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| 52 | my %require;
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| 53 | my $current_line;
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| 54 | my $tag;
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| 55 |
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| 56 | foreach my $file (@_) {
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| 57 |
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| 58 | open(FILE, "<$file") || return(\%require);
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| 59 |
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| 60 | while (<FILE>) {
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| 61 |
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| 62 | # skip the "= <<" block
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| 63 |
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| 64 | if ( ( m/^\s*\$(.*)\s*=\s*<<\s*["'](.*)['"]/i) ||
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| 65 | ( m/^\s*\$(.*)\s*=\s*<<\s*(.*);/i) ) {
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| 66 | $tag = $2;
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| 67 | while (<FILE>) {
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| 68 | ( $_ =~ /^$tag/) && last;
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| 69 | }
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| 70 | }
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| 71 |
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| 72 | # skip the documentation
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| 73 |
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| 74 | # we should not need to have item in this if statement (it
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| 75 | # properly belongs in the over/back section) but people do not
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| 76 | # read the perldoc.
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| 77 |
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| 78 | if ( (m/^=(head1|head2|pod|item)/) .. (m/^=(cut)/) ) {
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| 79 | next;
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| 80 | }
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| 81 |
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| 82 | if ( (m/^=(over)/) .. (m/^=(back)/) ) {
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| 83 | next;
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| 84 | }
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| 85 |
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| 86 | # skip the data section
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| 87 | if (m/^__(DATA|END)__$/) {
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| 88 | last;
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| 89 | }
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| 90 |
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| 91 | # Each keyword can appear multiple times. Don't
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| 92 | # bother with datastructures to store these strings,
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| 93 | # if we need to print it print it now.
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| 94 |
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| 95 | if ( m/^\s*\$RPM_Requires\s*=\s*["'](.*)['"]/i) {
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| 96 | foreach $_ (split(/\s+/, $1)) {
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| 97 | print "$_\n";
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| 98 | }
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| 99 | }
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| 100 |
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| 101 | if (
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| 102 |
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| 103 | # ouch could be in a eval, perhaps we do not want these since we catch
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| 104 | # an exception they must not be required
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| 105 |
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| 106 | # eval { require Term::ReadLine } or die $@;
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| 107 | # eval "require Term::Rendezvous;" or die $@;
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| 108 | # eval { require Carp } if defined $^S; # If error/warning during compilation,
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| 109 |
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| 110 |
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| 111 | (m/^(\s*) # we hope the inclusion starts the line
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| 112 | (require|use)\s+(?!\{) # do not want 'do {' loops
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| 113 | # quotes around name are always legal
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| 114 | [\'\"]?([^\;\ \'\"\t]*)[\'\"]?[\t\;\ ]
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| 115 | # the syntax for 'use' allows version requirements
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| 116 | \s*([.0-9]*)
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| 117 | /x)
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| 118 | ) {
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| 119 | my ($whitespace, $statement, $module, $version) = ($1, $2, $3,$4);
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| 120 | my $usebase;
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| 121 |
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| 122 | # we only consider require statements that are flush against
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| 123 | # the left edge. any other require statements give too many
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| 124 | # false positives, as they are usually inside of an if statement
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| 125 | # as a fallback module or a rarely used option
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| 126 |
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| 127 | ($whitespace ne "" && $statement eq "require") && next;
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| 128 |
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| 129 | # if there is some interpolation of variables just skip this
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| 130 | # dependency, we do not want
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| 131 | # do "$ENV{LOGDIR}/$rcfile";
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| 132 |
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| 133 | ($module =~ m/\$/) && next;
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| 134 |
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| 135 | # skip if the phrase was "use of" -- shows up in gimp-perl, et al
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| 136 | next if $module eq 'of';
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| 137 |
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| 138 | # if the module ends in a comma we probaly caught some
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| 139 | # documentation of the form 'check stuff,\n do stuff, clean
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| 140 | # stuff.' there are several of these in the perl distribution
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| 141 |
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| 142 | ($module =~ m/[,>]$/) && next;
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| 143 |
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| 144 | # if the module name starts in a dot it is not a module name.
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| 145 | # Is this necessary? Please give me an example if you turn this
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| 146 | # back on.
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| 147 |
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| 148 | # ($module =~ m/^\./) && next;
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| 149 |
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| 150 | # if the module ends with .pm strip it to leave only basename.
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| 151 | # starts with /, which means its an absolute path to a file
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| 152 | if ($module =~ m(^/)) {
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| 153 | print "$module\n";
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| 154 | next;
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| 155 | }
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| 156 |
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| 157 | # as seen in some perl scripts
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| 158 | # use base qw(App::CLI Class::Accessor::Chained::Fast App::CLI::Command);
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| 159 | if ($module eq 'base') {
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| 160 | $require{$module} = $version;
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| 161 | $line{$module} = $current_line;
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| 162 | ($module = $_) =~ s/use\s*base\s*//;
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| 163 | $module =~ s/qw\((.*)\)\s*;/$1/;
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| 164 | $module =~ s/qw(.)(.*)\1\s*;/$2/;
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| 165 | $module =~ s/\s*;$//;
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| 166 | $module =~ s/#.*//;
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| 167 | $usebase = 1;
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| 168 | }
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| 169 | # sometimes people do use POSIX qw(foo), or use POSIX(qw(foo)) etc
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| 170 | # we can strip qw.*$, as well as (.*$:
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| 171 | $module =~ s/qw.*$//;
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| 172 | $module =~ s/\(.*$//;
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| 173 |
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| 174 | $module =~ s/\.pm$//;
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| 175 |
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| 176 | # some perl programmers write 'require URI/URL;' when
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| 177 | # they mean 'require URI::URL;'
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| 178 |
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| 179 | $module =~ s/\//::/;
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| 180 |
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| 181 | # trim off trailing parenthesis if any. Sometimes people pass
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| 182 | # the module an empty list.
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| 183 |
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| 184 | $module =~ s/\(\s*\)$//;
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| 185 |
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| 186 | # if module is a number then both require and use interpret that
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| 187 | # to mean that a particular version of perl is specified. Don't
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| 188 | # add a dependency, though, since the rpm will already require
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| 189 | # perl-base at the build version (via find-requires)
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| 190 | next if $module =~ /^v?\d/;
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| 191 |
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| 192 | # ph files do not use the package name inside the file.
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| 193 | # perlmodlib documentation says:
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| 194 | # the .ph files made by h2ph will probably end up as
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| 195 | # extension modules made by h2xs.
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| 196 | # so do not spend much effort on these.
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| 197 |
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| 198 | # there is no easy way to find out if a file named systeminfo.ph
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| 199 | # will be included with the name sys/systeminfo.ph so only use the
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| 200 | # basename of *.ph files
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| 201 |
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| 202 | ($module =~ m/\.ph$/) && next;
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| 203 |
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| 204 | # if the module was loaded trough base, we need to split the list
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| 205 | if ($usebase) {
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| 206 | my $current_line = $_;
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| 207 | foreach (split(/\s+/, $module)) {
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| 208 | next unless $_;
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| 209 | $require{$_} = $version;
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| 210 | $line{$_} = $current_line;
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| 211 | }
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| 212 | } else {
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| 213 | $require{$module}=$version;
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| 214 | $line{$module}=$current_line;
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| 215 | }
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| 216 | }
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| 217 | }
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| 218 |
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| 219 | close(FILE) ||
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| 220 | die("$0: Could not close file: '$file' : $!\n");
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| 221 | }
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| 222 |
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| 223 | return(\%require);
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| 224 | }
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