summaryrefslogtreecommitdiff
path: root/builtin-fetch.c
diff options
context:
space:
mode:
Diffstat (limited to 'builtin-fetch.c')
-rw-r--r--builtin-fetch.c142
1 files changed, 83 insertions, 59 deletions
diff --git a/builtin-fetch.c b/builtin-fetch.c
index 57c161d35b..cb48c57ca3 100644
--- a/builtin-fetch.c
+++ b/builtin-fetch.c
@@ -10,6 +10,7 @@
#include "transport.h"
#include "run-command.h"
#include "parse-options.h"
+#include "sigchain.h"
static const char * const builtin_fetch_usage[] = {
"git fetch [options] [<repository> <refspec>...]",
@@ -22,7 +23,7 @@ enum {
TAGS_SET = 2
};
-static int append, force, keep, update_head_ok, verbose, quiet;
+static int append, force, keep, update_head_ok, verbosity;
static int tags = TAGS_DEFAULT;
static const char *depth;
static const char *upload_pack;
@@ -30,8 +31,7 @@ static struct strbuf default_rla = STRBUF_INIT;
static struct transport *transport;
static struct option builtin_fetch_options[] = {
- OPT__QUIET(&quiet),
- OPT__VERBOSE(&verbose),
+ OPT__VERBOSITY(&verbosity),
OPT_BOOLEAN('a', "append", &append,
"append to .git/FETCH_HEAD instead of overwriting"),
OPT_STRING(0, "upload-pack", &upload_pack, "PATH",
@@ -59,7 +59,7 @@ static void unlock_pack(void)
static void unlock_pack_on_signal(int signo)
{
unlock_pack();
- signal(SIGINT, SIG_DFL);
+ sigchain_pop(signo);
raise(signo);
}
@@ -167,6 +167,9 @@ static struct ref *get_ref_map(struct transport *transport,
return ref_map;
}
+#define STORE_REF_ERROR_OTHER 1
+#define STORE_REF_ERROR_DF_CONFLICT 2
+
static int s_update_ref(const char *action,
struct ref *ref,
int check_old)
@@ -181,9 +184,11 @@ static int s_update_ref(const char *action,
lock = lock_any_ref_for_update(ref->name,
check_old ? ref->old_sha1 : NULL, 0);
if (!lock)
- return 2;
+ return errno == ENOTDIR ? STORE_REF_ERROR_DF_CONFLICT :
+ STORE_REF_ERROR_OTHER;
if (write_ref_sha1(lock, ref->new_sha1, msg) < 0)
- return 2;
+ return errno == ENOTDIR ? STORE_REF_ERROR_DF_CONFLICT :
+ STORE_REF_ERROR_OTHER;
return 0;
}
@@ -192,17 +197,12 @@ static int s_update_ref(const char *action,
static int update_local_ref(struct ref *ref,
const char *remote,
- int verbose,
char *display)
{
struct commit *current = NULL, *updated;
enum object_type type;
struct branch *current_branch = branch_get(NULL);
- const char *pretty_ref = ref->name + (
- !prefixcmp(ref->name, "refs/heads/") ? 11 :
- !prefixcmp(ref->name, "refs/tags/") ? 10 :
- !prefixcmp(ref->name, "refs/remotes/") ? 13 :
- 0);
+ const char *pretty_ref = prettify_refname(ref->name);
*display = 0;
type = sha1_object_info(ref->new_sha1, NULL);
@@ -210,7 +210,7 @@ static int update_local_ref(struct ref *ref,
die("object %s not found", sha1_to_hex(ref->new_sha1));
if (!hashcmp(ref->old_sha1, ref->new_sha1)) {
- if (verbose)
+ if (verbosity > 0)
sprintf(display, "= %-*s %-*s -> %s", SUMMARY_WIDTH,
"[up to date]", REFCOL_WIDTH, remote,
pretty_ref);
@@ -294,7 +294,7 @@ static int update_local_ref(struct ref *ref,
}
}
-static int store_updated_refs(const char *url, const char *remote_name,
+static int store_updated_refs(const char *raw_url, const char *remote_name,
struct ref *ref_map)
{
FILE *fp;
@@ -303,11 +303,13 @@ static int store_updated_refs(const char *url, const char *remote_name,
char note[1024];
const char *what, *kind;
struct ref *rm;
- char *filename = git_path("FETCH_HEAD");
+ char *url, *filename = git_path("FETCH_HEAD");
fp = fopen(filename, "a");
if (!fp)
return error("cannot open %s: %s\n", filename, strerror(errno));
+
+ url = transport_anonymize_url(raw_url);
for (rm = ref_map; rm; rm = rm->next) {
struct ref *ref = NULL;
@@ -358,30 +360,38 @@ static int store_updated_refs(const char *url, const char *remote_name,
kind);
note_len += sprintf(note + note_len, "'%s' of ", what);
}
- note_len += sprintf(note + note_len, "%.*s", url_len, url);
- fprintf(fp, "%s\t%s\t%s\n",
+ note[note_len] = '\0';
+ fprintf(fp, "%s\t%s\t%s",
sha1_to_hex(commit ? commit->object.sha1 :
rm->old_sha1),
rm->merge ? "" : "not-for-merge",
note);
+ for (i = 0; i < url_len; ++i)
+ if ('\n' == url[i])
+ fputs("\\n", fp);
+ else
+ fputc(url[i], fp);
+ fputc('\n', fp);
if (ref)
- rc |= update_local_ref(ref, what, verbose, note);
+ rc |= update_local_ref(ref, what, note);
else
sprintf(note, "* %-*s %-*s -> FETCH_HEAD",
SUMMARY_WIDTH, *kind ? kind : "branch",
REFCOL_WIDTH, *what ? what : "HEAD");
if (*note) {
- if (!shown_url) {
+ if (verbosity >= 0 && !shown_url) {
fprintf(stderr, "From %.*s\n",
url_len, url);
shown_url = 1;
}
- fprintf(stderr, " %s\n", note);
+ if (verbosity >= 0)
+ fprintf(stderr, " %s\n", note);
}
}
+ free(url);
fclose(fp);
- if (rc & 2)
+ if (rc & STORE_REF_ERROR_DF_CONFLICT)
error("some local refs could not be updated; try running\n"
" 'git remote prune %s' to remove any old, conflicting "
"branches", remote_name);
@@ -390,14 +400,14 @@ static int store_updated_refs(const char *url, const char *remote_name,
/*
* We would want to bypass the object transfer altogether if
- * everything we are going to fetch already exists and connected
+ * everything we are going to fetch already exists and is connected
* locally.
*
- * The refs we are going to fetch are in to_fetch (nr_heads in
- * total). If running
+ * The refs we are going to fetch are in ref_map. If running
*
- * $ git rev-list --objects to_fetch[0] to_fetch[1] ... --not --all
+ * $ git rev-list --objects --stdin --not --all
*
+ * (feeding all the refs in ref_map on its standard input)
* does not error out, that means everything reachable from the
* refs we are going to fetch exists and is connected to some of
* our existing refs.
@@ -406,8 +416,9 @@ static int quickfetch(struct ref *ref_map)
{
struct child_process revlist;
struct ref *ref;
- char **argv;
- int i, err;
+ int err;
+ const char *argv[] = {"rev-list",
+ "--quiet", "--objects", "--stdin", "--not", "--all", NULL};
/*
* If we are deepening a shallow clone we already have these
@@ -419,34 +430,46 @@ static int quickfetch(struct ref *ref_map)
if (depth)
return -1;
- for (i = 0, ref = ref_map; ref; ref = ref->next)
- i++;
- if (!i)
+ if (!ref_map)
return 0;
- argv = xmalloc(sizeof(*argv) * (i + 6));
- i = 0;
- argv[i++] = xstrdup("rev-list");
- argv[i++] = xstrdup("--quiet");
- argv[i++] = xstrdup("--objects");
- for (ref = ref_map; ref; ref = ref->next)
- argv[i++] = xstrdup(sha1_to_hex(ref->old_sha1));
- argv[i++] = xstrdup("--not");
- argv[i++] = xstrdup("--all");
- argv[i++] = NULL;
-
memset(&revlist, 0, sizeof(revlist));
- revlist.argv = (const char**)argv;
+ revlist.argv = argv;
revlist.git_cmd = 1;
- revlist.no_stdin = 1;
revlist.no_stdout = 1;
revlist.no_stderr = 1;
- err = run_command(&revlist);
+ revlist.in = -1;
+
+ err = start_command(&revlist);
+ if (err) {
+ error("could not run rev-list");
+ return err;
+ }
- for (i = 0; argv[i]; i++)
- free(argv[i]);
- free(argv);
- return err;
+ /*
+ * If rev-list --stdin encounters an unknown commit, it terminates,
+ * which will cause SIGPIPE in the write loop below.
+ */
+ sigchain_push(SIGPIPE, SIG_IGN);
+
+ for (ref = ref_map; ref; ref = ref->next) {
+ if (write_in_full(revlist.in, sha1_to_hex(ref->old_sha1), 40) < 0 ||
+ write_str_in_full(revlist.in, "\n") < 0) {
+ if (errno != EPIPE && errno != EINVAL)
+ error("failed write to rev-list: %s", strerror(errno));
+ err = -1;
+ break;
+ }
+ }
+
+ if (close(revlist.in)) {
+ error("failed to close rev-list's stdin: %s", strerror(errno));
+ err = -1;
+ }
+
+ sigchain_pop(SIGPIPE);
+
+ return finish_command(&revlist) || err;
}
static int fetch_refs(struct transport *transport, struct ref *ref_map)
@@ -521,8 +544,8 @@ static void find_non_local_tags(struct transport *transport,
will_fetch(head, ref->old_sha1))) {
string_list_insert(ref_name, &new_refs);
- rm = alloc_ref_from_str(ref_name);
- rm->peer_ref = alloc_ref_from_str(ref_name);
+ rm = alloc_ref(ref_name);
+ rm->peer_ref = alloc_ref(ref_name);
hashcpy(rm->old_sha1, ref_sha1);
**tail = rm;
@@ -544,7 +567,8 @@ static void check_not_current_branch(struct ref *ref_map)
for (; ref_map; ref_map = ref_map->next)
if (ref_map->peer_ref && !strcmp(current_branch->refname,
ref_map->peer_ref->name))
- die("Refusing to fetch into current branch");
+ die("Refusing to fetch into current branch %s "
+ "of non-bare repository", current_branch->refname);
}
static int do_fetch(struct transport *transport,
@@ -608,7 +632,7 @@ static void set_option(const char *name, const char *value)
{
int r = transport_set_option(transport, name, value);
if (r < 0)
- die("Option \"%s\" value \"%s\" is not valid for %s\n",
+ die("Option \"%s\" value \"%s\" is not valid for %s",
name, value, transport->url);
if (r > 0)
warning("Option \"%s\" is ignored for %s\n",
@@ -628,7 +652,7 @@ int cmd_fetch(int argc, const char **argv, const char *prefix)
for (i = 1; i < argc; i++)
strbuf_addf(&default_rla, " %s", argv[i]);
- argc = parse_options(argc, argv,
+ argc = parse_options(argc, argv, prefix,
builtin_fetch_options, builtin_fetch_usage, 0);
if (argc == 0)
@@ -636,10 +660,13 @@ int cmd_fetch(int argc, const char **argv, const char *prefix)
else
remote = remote_get(argv[0]);
+ if (!remote)
+ die("Where do you want to fetch from today?");
+
transport = transport_get(remote, remote->url[0]);
- if (verbose >= 2)
+ if (verbosity >= 2)
transport->verbose = 1;
- if (quiet)
+ if (verbosity < 0)
transport->verbose = -1;
if (upload_pack)
set_option(TRANS_OPT_UPLOADPACK, upload_pack);
@@ -648,9 +675,6 @@ int cmd_fetch(int argc, const char **argv, const char *prefix)
if (depth)
set_option(TRANS_OPT_DEPTH, depth);
- if (!transport->url)
- die("Where do you want to fetch from today?");
-
if (argc > 1) {
int j = 0;
refs = xcalloc(argc + 1, sizeof(const char *));
@@ -673,7 +697,7 @@ int cmd_fetch(int argc, const char **argv, const char *prefix)
ref_nr = j;
}
- signal(SIGINT, unlock_pack_on_signal);
+ sigchain_push_common(unlock_pack_on_signal);
atexit(unlock_pack);
exit_code = do_fetch(transport,
parse_fetch_refspec(ref_nr, refs), ref_nr);
generated by cgit v1.2.3 (git 2.25.1) at 2025-01-10 19:36:25 +0000