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http: allow custom index-pack args 

Currently, when fetching, packfiles referenced by URIs are run through
index-pack without any arguments other than --stdin and --keep, no
matter what arguments are used for the packfile that is inline in the
fetch response. As a preparation for ensuring that all packs (whether
inline or not) use the same index-pack arguments, teach the http
subsystem to allow custom index-pack arguments.

http-fetch has been updated to use the new API. For now, it passes
--keep alone instead of --keep with a process ID, but this is only
temporary because http-fetch itself will be taught to accept index-pack
parameters (instead of using a hardcoded constant) in a subsequent
commit.

Signed-off-by: Jonathan Tan <jonathantanmy@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Jonathan Tan 2021-02-22 11:20:06 -08:00 committed by Junio C Hamano
parent 66e871b664
commit 726b25a91b
3 changed files with 18 additions and 13 deletions
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6
http-fetch.c
View File

@ -43,6 +43,9 @@ static int fetch_using_walker(const char *raw_url, int get_verbosely,
return rc;
}
static const char *index_pack_args[] =
{"index-pack", "--stdin", "--keep", NULL};
static void fetch_single_packfile(struct object_id *packfile_hash,
const char *url) {
struct http_pack_request *preq;
@ -55,7 +58,8 @@ static void fetch_single_packfile(struct object_id *packfile_hash,
if (preq == NULL)
die("couldn't create http pack request");
preq->slot->results = &results;
preq->generate_keep = 1;
preq->index_pack_args = index_pack_args;
preq->preserve_index_pack_stdout = 1;
if (start_active_slot(preq->slot)) {
run_active_slot(preq->slot);

15
http.c
View File

@ -2259,6 +2259,9 @@ void release_http_pack_request(struct http_pack_request *preq)
free(preq);
}
static const char *default_index_pack_args[] =
{"index-pack", "--stdin", NULL};
int finish_http_pack_request(struct http_pack_request *preq)
{
struct child_process ip = CHILD_PROCESS_INIT;
@ -2270,17 +2273,15 @@ int finish_http_pack_request(struct http_pack_request *preq)
tmpfile_fd = xopen(preq->tmpfile.buf, O_RDONLY);
strvec_push(&ip.args, "index-pack");
strvec_push(&ip.args, "--stdin");
ip.git_cmd = 1;
ip.in = tmpfile_fd;
if (preq->generate_keep) {
strvec_pushf(&ip.args, "--keep=git %"PRIuMAX,
(uintmax_t)getpid());
ip.argv = preq->index_pack_args ? preq->index_pack_args
: default_index_pack_args;
if (preq->preserve_index_pack_stdout)
ip.out = 0;
} else {
else
ip.no_stdout = 1;
}
if (run_command(&ip)) {
ret = -1;

10
http.h
View File

@ -218,12 +218,12 @@ struct http_pack_request {
char *url;
/*
* If this is true, finish_http_pack_request() will pass "--keep" to
* index-pack, resulting in the creation of a keep file, and will not
* suppress its stdout (that is, the "keep\t<hash>\n" line will be
* printed to stdout).
* index-pack command to run. Must be terminated by NULL.
*
* If NULL, defaults to {"index-pack", "--stdin", NULL}.
*/
unsigned generate_keep : 1;
const char **index_pack_args;
unsigned preserve_index_pack_stdout : 1;
FILE *packfile;
struct strbuf tmpfile;