/usr/bin/ptardiff is in perl 5.22.1-9ubuntu0.6.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 | #!/usr/bin/perl
eval 'exec /usr/bin/perl -S $0 ${1+"$@"}'
if $running_under_some_shell;
#!/usr/bin/perl
use strict;
use Archive::Tar;
use Getopt::Std;
my $opts = {};
getopts('h:', $opts) or die usage();
die usages() if $opts->{h};
### need Text::Diff -- give a polite error (not a standard prereq)
unless ( eval { require Text::Diff; Text::Diff->import; 1 } ) {
die "\n\t This tool requires the 'Text::Diff' module to be installed\n";
}
my $arch = shift or die usage();
my $tar = Archive::Tar->new( $arch ) or die "Couldn't read '$arch': $!";
foreach my $file ( $tar->get_files ) {
next unless $file->is_file;
my $prefix = $file->prefix;
my $name = $file->name;
if (defined $prefix) {
$name = File::Spec->catfile($prefix, $name);
}
diff( \($file->get_content), $name,
{ FILENAME_A => $name,
MTIME_A => $file->mtime,
OUTPUT => \*STDOUT
}
);
}
sub usage {
return q[
Usage: ptardiff ARCHIVE_FILE
ptardiff -h
ptardiff is a small program that diffs an extracted archive
against an unextracted one, using the perl module Archive::Tar.
This effectively lets you view changes made to an archives contents.
Provide the progam with an ARCHIVE_FILE and it will look up all
the files with in the archive, scan the current working directory
for a file with the name and diff it against the contents of the
archive.
Options:
h Prints this help message
Sample Usage:
$ tar -xzf Acme-Buffy-1.3.tar.gz
$ vi Acme-Buffy-1.3/README
[...]
$ ptardiff Acme-Buffy-1.3.tar.gz > README.patch
See Also:
tar(1)
ptar
Archive::Tar
] . $/;
}
=head1 NAME
ptardiff - program that diffs an extracted archive against an unextracted one
=head1 DESCRIPTION
ptardiff is a small program that diffs an extracted archive
against an unextracted one, using the perl module Archive::Tar.
This effectively lets you view changes made to an archives contents.
Provide the progam with an ARCHIVE_FILE and it will look up all
the files with in the archive, scan the current working directory
for a file with the name and diff it against the contents of the
archive.
=head1 SYNOPSIS
ptardiff ARCHIVE_FILE
ptardiff -h
$ tar -xzf Acme-Buffy-1.3.tar.gz
$ vi Acme-Buffy-1.3/README
[...]
$ ptardiff Acme-Buffy-1.3.tar.gz > README.patch
=head1 OPTIONS
h Prints this help message
=head1 SEE ALSO
tar(1), L<Archive::Tar>.
=cut
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