[2183] | 1 | #!/usr/bin/perl -w
|
---|
| 2 | #
|
---|
| 3 | # Get perl modules required by mindi and mondo and that should be on the restore media
|
---|
| 4 | #
|
---|
| 5 | use strict;
|
---|
| 6 |
|
---|
| 7 | use File::Find;
|
---|
[2839] | 8 | use Cwd;
|
---|
[2183] | 9 |
|
---|
| 10 | my $file = get_perl_modules(@ARGV) if (defined $ARGV[0]);
|
---|
| 11 |
|
---|
| 12 | foreach my $f (sort keys %$file) {
|
---|
| 13 | print "$f\n";
|
---|
| 14 | }
|
---|
| 15 |
|
---|
| 16 | sub get_perl_modules {
|
---|
| 17 |
|
---|
| 18 | my %files;
|
---|
| 19 |
|
---|
| 20 | #print "Searching in ";
|
---|
| 21 | #print join "\n", @INC;
|
---|
| 22 |
|
---|
| 23 | my $require = process_file(@_);
|
---|
| 24 |
|
---|
[2593] | 25 | my @includes;
|
---|
| 26 |
|
---|
| 27 | # Remove non exiting directories from @INC
|
---|
| 28 | # and thus avoid perl warnings
|
---|
| 29 | #
|
---|
| 30 | foreach my $d (@INC) {
|
---|
[2839] | 31 | $d = read_all_link($d) if (-l $d);
|
---|
[2593] | 32 | push @includes,$d if (-d $d);
|
---|
| 33 | }
|
---|
| 34 |
|
---|
[2183] | 35 | find(
|
---|
| 36 | sub {
|
---|
| 37 | if ((-f $File::Find::name)
|
---|
| 38 | && (/\.pm$/)
|
---|
| 39 | && (not defined $files{$File::Find::name})) {
|
---|
| 40 | foreach my $m (keys %$require,"warnings") {
|
---|
| 41 | (my $mod = $m) =~ s|::|/|g;
|
---|
| 42 | #print "Looking at $mod in $File::Find::name\n";
|
---|
| 43 | if (index($File::Find::name,"$mod.pm") ne -1) {
|
---|
| 44 | $files{$File::Find::name} = $mod;
|
---|
| 45 | #push @files, $File::Find::name;
|
---|
| 46 | #print "Found $mod in $File::Find::name\n";
|
---|
| 47 | last;
|
---|
| 48 | }
|
---|
| 49 | }
|
---|
| 50 | }
|
---|
| 51 | },
|
---|
[2593] | 52 | @includes);
|
---|
[2183] | 53 |
|
---|
| 54 | return(\%files);
|
---|
| 55 | }
|
---|
| 56 |
|
---|
[2839] | 57 | # Cf: http://www.stonehenge.com/merlyn/UnixReview/col27.html
|
---|
| 58 | sub read_all_link {
|
---|
| 59 |
|
---|
| 60 | my $dir = cwd;
|
---|
| 61 | my $link;
|
---|
| 62 |
|
---|
| 63 | find sub {
|
---|
| 64 | return unless -l;
|
---|
| 65 | my @right = split /\//, $File::Find::name;
|
---|
| 66 | my @left = do {
|
---|
| 67 | @right && ($right[0] eq "") ?
|
---|
| 68 | shift @right : # quick way
|
---|
| 69 | split /\//, $dir;
|
---|
| 70 | }; # first element always null
|
---|
| 71 | while (@right) {
|
---|
| 72 | my $item = shift @right;
|
---|
| 73 | next if $item eq "." or $item eq "";
|
---|
| 74 | if ($item eq "..") {
|
---|
| 75 | pop @left if @left > 1;
|
---|
| 76 | next;
|
---|
| 77 | }
|
---|
| 78 | my $link = readlink (join "/", @left, $item);
|
---|
| 79 | if (defined $link) {
|
---|
| 80 | my @parts = split /\//, $link;
|
---|
| 81 | if (@parts && ($parts[0] eq "")) { # absolute
|
---|
| 82 | @left = shift @parts; # quick way
|
---|
| 83 | }
|
---|
| 84 | unshift @right, @parts;
|
---|
| 85 | next;
|
---|
| 86 | } else {
|
---|
| 87 | push @left, $item;
|
---|
| 88 | next;
|
---|
| 89 | }
|
---|
| 90 | }
|
---|
| 91 | #print "$File::Find::name is ", join("/", @left), "\n";
|
---|
| 92 | $link = join("/", @left);
|
---|
| 93 | }, @_;
|
---|
| 94 | return($link);
|
---|
| 95 | }
|
---|
| 96 |
|
---|
[2183] | 97 | # Adapted From /usr/lib/rpm/mandriva/perl.req
|
---|
| 98 | # by Ken Estes Mail.com kestes@staff.mail.com
|
---|
| 99 |
|
---|
| 100 | sub process_file {
|
---|
| 101 |
|
---|
| 102 | my %line;
|
---|
| 103 | my %require;
|
---|
| 104 | my $current_line;
|
---|
| 105 | my $tag;
|
---|
| 106 |
|
---|
| 107 | foreach my $file (@_) {
|
---|
| 108 |
|
---|
| 109 | open(FILE, "<$file") || return(\%require);
|
---|
| 110 |
|
---|
| 111 | while (<FILE>) {
|
---|
| 112 |
|
---|
| 113 | # skip the "= <<" block
|
---|
| 114 |
|
---|
| 115 | if ( ( m/^\s*\$(.*)\s*=\s*<<\s*["'](.*)['"]/i) ||
|
---|
| 116 | ( m/^\s*\$(.*)\s*=\s*<<\s*(.*);/i) ) {
|
---|
| 117 | $tag = $2;
|
---|
| 118 | while (<FILE>) {
|
---|
| 119 | ( $_ =~ /^$tag/) && last;
|
---|
| 120 | }
|
---|
| 121 | }
|
---|
| 122 |
|
---|
| 123 | # skip the documentation
|
---|
| 124 |
|
---|
| 125 | # we should not need to have item in this if statement (it
|
---|
| 126 | # properly belongs in the over/back section) but people do not
|
---|
| 127 | # read the perldoc.
|
---|
| 128 |
|
---|
| 129 | if ( (m/^=(head1|head2|pod|item)/) .. (m/^=(cut)/) ) {
|
---|
| 130 | next;
|
---|
| 131 | }
|
---|
| 132 |
|
---|
| 133 | if ( (m/^=(over)/) .. (m/^=(back)/) ) {
|
---|
| 134 | next;
|
---|
| 135 | }
|
---|
| 136 |
|
---|
| 137 | # skip the data section
|
---|
| 138 | if (m/^__(DATA|END)__$/) {
|
---|
| 139 | last;
|
---|
| 140 | }
|
---|
| 141 |
|
---|
| 142 | # Each keyword can appear multiple times. Don't
|
---|
| 143 | # bother with datastructures to store these strings,
|
---|
| 144 | # if we need to print it print it now.
|
---|
| 145 |
|
---|
| 146 | if ( m/^\s*\$RPM_Requires\s*=\s*["'](.*)['"]/i) {
|
---|
| 147 | foreach $_ (split(/\s+/, $1)) {
|
---|
| 148 | print "$_\n";
|
---|
| 149 | }
|
---|
| 150 | }
|
---|
| 151 |
|
---|
| 152 | if (
|
---|
| 153 |
|
---|
| 154 | # ouch could be in a eval, perhaps we do not want these since we catch
|
---|
| 155 | # an exception they must not be required
|
---|
| 156 |
|
---|
| 157 | # eval { require Term::ReadLine } or die $@;
|
---|
| 158 | # eval "require Term::Rendezvous;" or die $@;
|
---|
| 159 | # eval { require Carp } if defined $^S; # If error/warning during compilation,
|
---|
| 160 |
|
---|
| 161 |
|
---|
| 162 | (m/^(\s*) # we hope the inclusion starts the line
|
---|
| 163 | (require|use)\s+(?!\{) # do not want 'do {' loops
|
---|
| 164 | # quotes around name are always legal
|
---|
| 165 | [\'\"]?([^\;\ \'\"\t]*)[\'\"]?[\t\;\ ]
|
---|
| 166 | # the syntax for 'use' allows version requirements
|
---|
| 167 | \s*([.0-9]*)
|
---|
| 168 | /x)
|
---|
| 169 | ) {
|
---|
| 170 | my ($whitespace, $statement, $module, $version) = ($1, $2, $3,$4);
|
---|
| 171 | my $usebase;
|
---|
| 172 |
|
---|
| 173 | # we only consider require statements that are flush against
|
---|
| 174 | # the left edge. any other require statements give too many
|
---|
| 175 | # false positives, as they are usually inside of an if statement
|
---|
| 176 | # as a fallback module or a rarely used option
|
---|
| 177 |
|
---|
| 178 | ($whitespace ne "" && $statement eq "require") && next;
|
---|
| 179 |
|
---|
| 180 | # if there is some interpolation of variables just skip this
|
---|
| 181 | # dependency, we do not want
|
---|
| 182 | # do "$ENV{LOGDIR}/$rcfile";
|
---|
| 183 |
|
---|
| 184 | ($module =~ m/\$/) && next;
|
---|
| 185 |
|
---|
| 186 | # skip if the phrase was "use of" -- shows up in gimp-perl, et al
|
---|
| 187 | next if $module eq 'of';
|
---|
| 188 |
|
---|
| 189 | # if the module ends in a comma we probaly caught some
|
---|
| 190 | # documentation of the form 'check stuff,\n do stuff, clean
|
---|
| 191 | # stuff.' there are several of these in the perl distribution
|
---|
| 192 |
|
---|
| 193 | ($module =~ m/[,>]$/) && next;
|
---|
| 194 |
|
---|
| 195 | # if the module name starts in a dot it is not a module name.
|
---|
| 196 | # Is this necessary? Please give me an example if you turn this
|
---|
| 197 | # back on.
|
---|
| 198 |
|
---|
| 199 | # ($module =~ m/^\./) && next;
|
---|
| 200 |
|
---|
| 201 | # if the module ends with .pm strip it to leave only basename.
|
---|
| 202 | # starts with /, which means its an absolute path to a file
|
---|
| 203 | if ($module =~ m(^/)) {
|
---|
| 204 | print "$module\n";
|
---|
| 205 | next;
|
---|
| 206 | }
|
---|
| 207 |
|
---|
| 208 | # as seen in some perl scripts
|
---|
| 209 | # use base qw(App::CLI Class::Accessor::Chained::Fast App::CLI::Command);
|
---|
| 210 | if ($module eq 'base') {
|
---|
| 211 | $require{$module} = $version;
|
---|
| 212 | $line{$module} = $current_line;
|
---|
| 213 | ($module = $_) =~ s/use\s*base\s*//;
|
---|
| 214 | $module =~ s/qw\((.*)\)\s*;/$1/;
|
---|
| 215 | $module =~ s/qw(.)(.*)\1\s*;/$2/;
|
---|
| 216 | $module =~ s/\s*;$//;
|
---|
| 217 | $module =~ s/#.*//;
|
---|
| 218 | $usebase = 1;
|
---|
| 219 | }
|
---|
| 220 | # sometimes people do use POSIX qw(foo), or use POSIX(qw(foo)) etc
|
---|
| 221 | # we can strip qw.*$, as well as (.*$:
|
---|
| 222 | $module =~ s/qw.*$//;
|
---|
| 223 | $module =~ s/\(.*$//;
|
---|
| 224 |
|
---|
| 225 | $module =~ s/\.pm$//;
|
---|
| 226 |
|
---|
| 227 | # some perl programmers write 'require URI/URL;' when
|
---|
| 228 | # they mean 'require URI::URL;'
|
---|
| 229 |
|
---|
| 230 | $module =~ s/\//::/;
|
---|
| 231 |
|
---|
| 232 | # trim off trailing parenthesis if any. Sometimes people pass
|
---|
| 233 | # the module an empty list.
|
---|
| 234 |
|
---|
| 235 | $module =~ s/\(\s*\)$//;
|
---|
| 236 |
|
---|
| 237 | # if module is a number then both require and use interpret that
|
---|
| 238 | # to mean that a particular version of perl is specified. Don't
|
---|
| 239 | # add a dependency, though, since the rpm will already require
|
---|
| 240 | # perl-base at the build version (via find-requires)
|
---|
| 241 | next if $module =~ /^v?\d/;
|
---|
| 242 |
|
---|
| 243 | # ph files do not use the package name inside the file.
|
---|
| 244 | # perlmodlib documentation says:
|
---|
| 245 | # the .ph files made by h2ph will probably end up as
|
---|
| 246 | # extension modules made by h2xs.
|
---|
| 247 | # so do not spend much effort on these.
|
---|
| 248 |
|
---|
| 249 | # there is no easy way to find out if a file named systeminfo.ph
|
---|
| 250 | # will be included with the name sys/systeminfo.ph so only use the
|
---|
| 251 | # basename of *.ph files
|
---|
| 252 |
|
---|
| 253 | ($module =~ m/\.ph$/) && next;
|
---|
| 254 |
|
---|
| 255 | # if the module was loaded trough base, we need to split the list
|
---|
| 256 | if ($usebase) {
|
---|
| 257 | my $current_line = $_;
|
---|
| 258 | foreach (split(/\s+/, $module)) {
|
---|
| 259 | next unless $_;
|
---|
| 260 | $require{$_} = $version;
|
---|
| 261 | $line{$_} = $current_line;
|
---|
| 262 | }
|
---|
| 263 | } else {
|
---|
| 264 | $require{$module}=$version;
|
---|
| 265 | $line{$module}=$current_line;
|
---|
| 266 | }
|
---|
| 267 | }
|
---|
| 268 | }
|
---|
| 269 |
|
---|
| 270 | close(FILE) ||
|
---|
| 271 | die("$0: Could not close file: '$file' : $!\n");
|
---|
| 272 | }
|
---|
| 273 |
|
---|
| 274 | return(\%require);
|
---|
| 275 | }
|
---|