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xdelta : only handle gz compression specifically

There is apparently no need to handle the re-compression manually when
applying a xdelta patch in case of bzip2 or xz.

Only gzip needs to be handled specifically for disabling timestamp with the
-n option.

After this patch, if xdelta is enhanced with xz support (1-line patch), it
will be transparent from pacman side.

Signed-off-by: Xavier Chantry <shiningxc@gmail.com>
Signed-off-by: Dan McGee <dan@archlinux.org>
This commit is contained in:
Xavier Chantry 2009-05-22 00:24:26 +02:00 committed by Dan McGee
parent 9af9c0f328
commit 13b281d743

View File

@ -622,15 +622,12 @@ static int apply_deltas(pmtrans_t *trans)
snprintf(to, len, "%s/%s", cachedir, d->to);
/* build the patch command */
/* compression command */
char *compress = "cat";
if(endswith(to, ".gz")) {
compress = "gzip -n";
} else if(endswith(to, ".bz2")) {
compress = "bzip";
/* special handling for gzip : we disable timestamp with -n option */
snprintf(command, PATH_MAX, "xdelta3 -d -q -R -c -s %s %s | gzip -n > %s", from, delta, to);
} else {
snprintf(command, PATH_MAX, "xdelta3 -d -q -s %s %s %s", from, delta, to);
}
/* -R for disabling external recompression, -c for sending to stdout */
snprintf(command, PATH_MAX, "xdelta3 -d -q -R -c -s %s %s | %s > %s", from, delta, compress, to);
_alpm_log(PM_LOG_DEBUG, "command: %s\n", command);