Global Variables in package CPAN::Checksums

$IGNORE_MATCH

If the global variable $IGNORE_MATCH is set, then all files matching this expression will be completely ignored and will not be included in the CPAN "CHECKSUMS" files. Per default this variable is set to

    qr{(?i-xsm:readme$)}
    

$CAUTION

Setting the global variable $CAUTION causes updatedir() to report changes of files in the attributes "size", "mtime", "md5", or "md5-ungz" to STDERR.

$TRY_SHORTNAME

By setting the global variable $TRY_SHORTNAME to a true value, you can tell updatedir() to include an attribute "shortname" in the resulting hash that is 8.3-compatible. Please note, that updatedir() in this case may be slow and may even fail on large directories, because it will always only try 1000 iterations to find a name that is not yet taken and then give up.

$SIGNING_KEY

Setting the global variable $SIGNING_KEY makes the generated "CHECKSUMS" file to be clear-signed by the command specified in $SIGNING_PROGRAM (defaults to "gpg --clearsign --default-key "), passing the signing key as an extra argument. The resulting "CHECKSUMS" file should look like:

    0&&<<''; # this PGP-signed message is also valid perl
    -----BEGIN PGP SIGNED MESSAGE-----
    Hash: SHA1

    # CHECKSUMS file written on ... by CPAN::Checksums (v...)
    $cksum = {
        ...
    };

    __END__
    -----BEGIN PGP SIGNATURE-----
    ...
    -----END PGP SIGNATURE-----
    

note that the actual data remains intact, but two extra lines are added to make it legal for both OpenPGP and perl syntax.

$MIN_MTIME_CHECKSUMS

If the global variable $MIN_MTIME_CHECKSUMS is set, then updatedir will renew signatures on checksum files that have an older mtime than the given value.