ptardiff - program that diffs an extracted archive against an unextracted one

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.

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

h   Prints this help message