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Merge branch 'it/fetch-pack-many-refs'

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When "git fetch" encounters repositories with too many references, the
command line of "fetch-pack" that is run by a helper e.g. remote-curl,
may fail to hold all of them. Now such an internal invocation can feed
the references through the standard input of "fetch-pack".

By Ivan Todoroski
* it/fetch-pack-many-refs:
  remote-curl: main test case for the OS command line overflow
  fetch-pack: test cases for the new --stdin option
  remote-curl: send the refs to fetch-pack on stdin
  fetch-pack: new --stdin option to read refs from stdin
This commit is contained in:
Junio C Hamano
2012-04-24 14:40:51 -07:00
parent 4de561ce80 7103d2543a
commit 77cab8af4a
6 changed files with 162 additions and 6 deletions
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42
builtin/fetch-pack.c
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@ -23,7 +23,9 @@ static struct fetch_pack_args args = {
};
static const char fetch_pack_usage[] =
"git fetch-pack [--all] [--quiet|-q] [--keep|-k] [--thin] [--include-tag] [--upload-pack=<git-upload-pack>] [--depth=<n>] [--no-progress] [-v] [<host>:]<directory> [<refs>...]";
"git fetch-pack [--all] [--stdin] [--quiet|-q] [--keep|-k] [--thin] "
"[--include-tag] [--upload-pack=<git-upload-pack>] [--depth=<n>] "
"[--no-progress] [-v] [<host>:]<directory> [<refs>...]";
#define COMPLETE (1U << 0)
#define COMMON (1U << 1)
@ -942,6 +944,10 @@ int cmd_fetch_pack(int argc, const char **argv, const char *prefix)
args.fetch_all = 1;
continue;
}
if (!strcmp("--stdin", arg)) {
args.stdin_refs = 1;
continue;
}
if (!strcmp("-v", arg)) {
args.verbose = 1;
continue;
@ -973,6 +979,40 @@ int cmd_fetch_pack(int argc, const char **argv, const char *prefix)
if (!dest)
usage(fetch_pack_usage);
if (args.stdin_refs) {
/*
* Copy refs from cmdline to new growable list, then
* append the refs from the standard input.
*/
int alloc_heads = nr_heads;
int size = nr_heads * sizeof(*heads);
heads = memcpy(xmalloc(size), heads, size);
if (args.stateless_rpc) {
/* in stateless RPC mode we use pkt-line to read
* from stdin, until we get a flush packet
*/
static char line[1000];
for (;;) {
int n = packet_read_line(0, line, sizeof(line));
if (!n)
break;
if (line[n-1] == '\n')
n--;
ALLOC_GROW(heads, nr_heads + 1, alloc_heads);
heads[nr_heads++] = xmemdupz(line, n);
}
}
else {
/* read from stdin one ref per line, until EOF */
struct strbuf line = STRBUF_INIT;
while (strbuf_getline(&line, stdin, '\n') != EOF) {
ALLOC_GROW(heads, nr_heads + 1, alloc_heads);
heads[nr_heads++] = strbuf_detach(&line, NULL);
}
strbuf_release(&line);
}
}
if (args.stateless_rpc) {
conn = NULL;
fd[0] = 0;