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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