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http: use --stdin when indexing dumb HTTP pack 

When Git fetches a pack using dumb HTTP, (among other things) it invokes
index-pack on a ".pack.temp" packfile, specifying the filename as an
argument.

A future commit will require the aforementioned invocation of index-pack
to also generate a "keep" file. To use this, we either have to use
index-pack's naming convention (because --keep requires the pack's
filename to end with ".pack") or to pass the pack through stdin. Of the
two, it is simpler to pass the pack through stdin.

Thus, teach http to pass --stdin to index-pack. As a bonus, the code is
now simpler.

Signed-off-by: Jonathan Tan <jonathantanmy@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Jonathan Tan 2020-06-10 13:57:15 -07:00 committed by Junio C Hamano
parent 339a9840ef
commit 9cb3cab560
1 changed files with 11 additions and 22 deletions
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33
http.c
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@ -2270,9 +2270,9 @@ int finish_http_pack_request(struct http_pack_request *preq)
{
struct packed_git **lst;
struct packed_git *p = preq->target;
char *tmp_idx;
size_t len;
struct child_process ip = CHILD_PROCESS_INIT;
int tmpfile_fd;
int ret = 0;
close_pack_index(p);
@ -2284,35 +2284,24 @@ int finish_http_pack_request(struct http_pack_request *preq)
lst = &((*lst)->next);
*lst = (*lst)->next;
if (!strip_suffix(preq->tmpfile.buf, ".pack.temp", &len))
BUG("pack tmpfile does not end in .pack.temp?");
tmp_idx = xstrfmt("%.*s.idx.temp", (int)len, preq->tmpfile.buf);
tmpfile_fd = xopen(preq->tmpfile.buf, O_RDONLY);
argv_array_push(&ip.args, "index-pack");
argv_array_pushl(&ip.args, "-o", tmp_idx, NULL);
argv_array_push(&ip.args, preq->tmpfile.buf);
argv_array_push(&ip.args, "--stdin");
ip.git_cmd = 1;
ip.no_stdin = 1;
ip.in = tmpfile_fd;
ip.no_stdout = 1;
if (run_command(&ip)) {
unlink(preq->tmpfile.buf);
unlink(tmp_idx);
free(tmp_idx);
return -1;
}
unlink(sha1_pack_index_name(p->hash));
if (finalize_object_file(preq->tmpfile.buf, sha1_pack_name(p->hash))
|| finalize_object_file(tmp_idx, sha1_pack_index_name(p->hash))) {
free(tmp_idx);
return -1;
ret = -1;
goto cleanup;
}
install_packed_git(the_repository, p);
free(tmp_idx);
return 0;
cleanup:
close(tmpfile_fd);
unlink(preq->tmpfile.buf);
return ret;
}
struct http_pack_request *new_http_pack_request(