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bundle: split out a helper function to create pack data

Browse Source 
The create_bundle() function, while it does one single logical
thing, takes a rather large implementation to do so.

Let's start separating what it does into smaller steps to make it
easier to see what is going on.  This is a first step to separate
out the actual pack-data generation, after the earlier part of the
function figures out which part of the history to place in the
bundle.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Junio C Hamano 2014-10-30 10:45:41 -07:00
parent 8828f2985f
commit 5e626b91d4
1 changed files with 37 additions and 27 deletions
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64
bundle.c
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@ -235,6 +235,41 @@ out:
return result;
}
static int write_pack_data(int bundle_fd, struct lock_file *lock, struct rev_info *revs)
{
struct child_process pack_objects = CHILD_PROCESS_INIT;
int i;
argv_array_pushl(&pack_objects.args,
"pack-objects", "--all-progress-implied",
"--stdout", "--thin", "--delta-base-offset",
NULL);
pack_objects.in = -1;
pack_objects.out = bundle_fd;
pack_objects.git_cmd = 1;
if (start_command(&pack_objects))
return error(_("Could not spawn pack-objects"));
/*
* start_command closed bundle_fd if it was > 1
* so set the lock fd to -1 so commit_lock_file()
* won't fail trying to close it.
*/
lock->fd = -1;
for (i = 0; i < revs->pending.nr; i++) {
struct object *object = revs->pending.objects[i].item;
if (object->flags & UNINTERESTING)
write_or_die(pack_objects.in, "^", 1);
write_or_die(pack_objects.in, sha1_to_hex(object->sha1), 40);
write_or_die(pack_objects.in, "\n", 1);
}
close(pack_objects.in);
if (finish_command(&pack_objects))
return error(_("pack-objects died"));
return 0;
}
int create_bundle(struct bundle_header *header, const char *path,
int argc, const char **argv)
{
@ -381,34 +416,9 @@ int create_bundle(struct bundle_header *header, const char *path,
write_or_die(bundle_fd, "\n", 1);
/* write pack */
child_process_init(&rls);
argv_array_pushl(&rls.args,
"pack-objects", "--all-progress-implied",
"--stdout", "--thin", "--delta-base-offset",
NULL);
rls.in = -1;
rls.out = bundle_fd;
rls.git_cmd = 1;
if (start_command(&rls))
return error(_("Could not spawn pack-objects"));
if (write_pack_data(bundle_fd, &lock, &revs))
return -1;
/*
* start_command closed bundle_fd if it was > 1
* so set the lock fd to -1 so commit_lock_file()
* won't fail trying to close it.
*/
lock.fd = -1;
for (i = 0; i < revs.pending.nr; i++) {
struct object *object = revs.pending.objects[i].item;
if (object->flags & UNINTERESTING)
write_or_die(rls.in, "^", 1);
write_or_die(rls.in, sha1_to_hex(object->sha1), 40);
write_or_die(rls.in, "\n", 1);
}
close(rls.in);
if (finish_command(&rls))
return error(_("pack-objects died"));
if (!bundle_to_stdout) {
if (commit_lock_file(&lock))
die_errno(_("cannot create '%s'"), path);