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Diffstat (limited to 'builtin/fetch.c')
-rw-r--r--builtin/fetch.c247
1 files changed, 167 insertions, 80 deletions
diff --git a/builtin/fetch.c b/builtin/fetch.c
index 4b6b1dfe66..bd7a10164f 100644
--- a/builtin/fetch.c
+++ b/builtin/fetch.c
@@ -30,13 +30,18 @@ enum {
TAGS_SET = 2
};
-static int all, append, dry_run, force, keep, multiple, prune, update_head_ok, verbosity;
+static int fetch_prune_config = -1; /* unspecified */
+static int prune = -1; /* unspecified */
+#define PRUNE_BY_DEFAULT 0 /* do we prune by default? */
+
+static int all, append, dry_run, force, keep, multiple, update_head_ok, verbosity;
static int progress = -1, recurse_submodules = RECURSE_SUBMODULES_DEFAULT;
static int tags = TAGS_DEFAULT, unshallow;
static const char *depth;
static const char *upload_pack;
static struct strbuf default_rla = STRBUF_INIT;
-static struct transport *transport;
+static struct transport *gtransport;
+static struct transport *gsecondary;
static const char *submodule_prefix = "";
static const char *recurse_submodules_default;
@@ -54,30 +59,39 @@ static int option_parse_recurse_submodules(const struct option *opt,
return 0;
}
+static int git_fetch_config(const char *k, const char *v, void *cb)
+{
+ if (!strcmp(k, "fetch.prune")) {
+ fetch_prune_config = git_config_bool(k, v);
+ return 0;
+ }
+ return 0;
+}
+
static struct option builtin_fetch_options[] = {
OPT__VERBOSITY(&verbosity),
- OPT_BOOLEAN(0, "all", &all,
- N_("fetch from all remotes")),
- OPT_BOOLEAN('a', "append", &append,
- N_("append to .git/FETCH_HEAD instead of overwriting")),
+ OPT_BOOL(0, "all", &all,
+ N_("fetch from all remotes")),
+ OPT_BOOL('a', "append", &append,
+ N_("append to .git/FETCH_HEAD instead of overwriting")),
OPT_STRING(0, "upload-pack", &upload_pack, N_("path"),
N_("path to upload pack on remote end")),
OPT__FORCE(&force, N_("force overwrite of local branch")),
- OPT_BOOLEAN('m', "multiple", &multiple,
- N_("fetch from multiple remotes")),
+ OPT_BOOL('m', "multiple", &multiple,
+ N_("fetch from multiple remotes")),
OPT_SET_INT('t', "tags", &tags,
N_("fetch all tags and associated objects"), TAGS_SET),
OPT_SET_INT('n', NULL, &tags,
N_("do not fetch all tags (--no-tags)"), TAGS_UNSET),
- OPT_BOOLEAN('p', "prune", &prune,
- N_("prune remote-tracking branches no longer on remote")),
+ OPT_BOOL('p', "prune", &prune,
+ N_("prune remote-tracking branches no longer on remote")),
{ OPTION_CALLBACK, 0, "recurse-submodules", NULL, N_("on-demand"),
N_("control recursive fetching of submodules"),
PARSE_OPT_OPTARG, option_parse_recurse_submodules },
- OPT_BOOLEAN(0, "dry-run", &dry_run,
- N_("dry run")),
- OPT_BOOLEAN('k', "keep", &keep, N_("keep downloaded pack")),
- OPT_BOOLEAN('u', "update-head-ok", &update_head_ok,
+ OPT_BOOL(0, "dry-run", &dry_run,
+ N_("dry run")),
+ OPT_BOOL('k', "keep", &keep, N_("keep downloaded pack")),
+ OPT_BOOL('u', "update-head-ok", &update_head_ok,
N_("allow updating of HEAD ref")),
OPT_BOOL(0, "progress", &progress, N_("force progress reporting")),
OPT_STRING(0, "depth", &depth, N_("depth"),
@@ -95,8 +109,10 @@ static struct option builtin_fetch_options[] = {
static void unlock_pack(void)
{
- if (transport)
- transport_unlock_pack(transport);
+ if (gtransport)
+ transport_unlock_pack(gtransport);
+ if (gsecondary)
+ transport_unlock_pack(gsecondary);
}
static void unlock_pack_on_signal(int signo)
@@ -119,7 +135,7 @@ static void add_merge_config(struct ref **head,
for (rm = *head; rm; rm = rm->next) {
if (branch_merge_matches(branch, i, rm->name)) {
- rm->merge = 1;
+ rm->fetch_head_status = FETCH_HEAD_MERGE;
break;
}
}
@@ -140,7 +156,7 @@ static void add_merge_config(struct ref **head,
refspec.src = branch->merge[i]->src;
get_fetch_map(remote_refs, &refspec, tail, 1);
for (rm = *old_tail; rm; rm = rm->next)
- rm->merge = 1;
+ rm->fetch_head_status = FETCH_HEAD_MERGE;
}
}
@@ -160,6 +176,8 @@ static struct ref *get_ref_map(struct transport *transport,
const struct ref *remote_refs = transport_get_remote_refs(transport);
if (ref_count || tags == TAGS_SET) {
+ struct ref **old_tail;
+
for (i = 0; i < ref_count; i++) {
get_fetch_map(remote_refs, &refs[i], &tail, 0);
if (refs[i].dst && refs[i].dst[0])
@@ -167,9 +185,23 @@ static struct ref *get_ref_map(struct transport *transport,
}
/* Merge everything on the command line, but not --tags */
for (rm = ref_map; rm; rm = rm->next)
- rm->merge = 1;
+ rm->fetch_head_status = FETCH_HEAD_MERGE;
if (tags == TAGS_SET)
get_fetch_map(remote_refs, tag_refspec, &tail, 0);
+
+ /*
+ * For any refs that we happen to be fetching via command-line
+ * arguments, take the opportunity to update their configured
+ * counterparts. However, we do not want to mention these
+ * entries in FETCH_HEAD at all, as they would simply be
+ * duplicates of existing entries.
+ */
+ old_tail = tail;
+ for (i = 0; i < transport->remote->fetch_refspec_nr; i++)
+ get_fetch_map(ref_map, &transport->remote->fetch[i],
+ &tail, 1);
+ for (rm = *old_tail; rm; rm = rm->next)
+ rm->fetch_head_status = FETCH_HEAD_IGNORE;
} else {
/* Use the defaults */
struct remote *remote = transport->remote;
@@ -186,7 +218,7 @@ static struct ref *get_ref_map(struct transport *transport,
*autotags = 1;
if (!i && !has_merge && ref_map &&
!remote->fetch[0].pattern)
- ref_map->merge = 1;
+ ref_map->fetch_head_status = FETCH_HEAD_MERGE;
}
/*
* if the remote we're fetching from is the same
@@ -202,7 +234,7 @@ static struct ref *get_ref_map(struct transport *transport,
ref_map = get_remote_ref(remote_refs, "HEAD");
if (!ref_map)
die(_("Couldn't find remote ref HEAD"));
- ref_map->merge = 1;
+ ref_map->fetch_head_status = FETCH_HEAD_MERGE;
tail = &ref_map->next;
}
}
@@ -230,7 +262,8 @@ static int s_update_ref(const char *action,
rla = default_rla.buf;
snprintf(msg, sizeof(msg), "%s: %s", rla, action);
lock = lock_any_ref_for_update(ref->name,
- check_old ? ref->old_sha1 : NULL, 0);
+ check_old ? ref->old_sha1 : NULL,
+ 0, NULL);
if (!lock)
return errno == ENOTDIR ? STORE_REF_ERROR_DF_CONFLICT :
STORE_REF_ERROR_OTHER;
@@ -389,7 +422,7 @@ static int store_updated_refs(const char *raw_url, const char *remote_name,
const char *what, *kind;
struct ref *rm;
char *url, *filename = dry_run ? "/dev/null" : git_path("FETCH_HEAD");
- int want_merge;
+ int want_status;
fp = fopen(filename, "a");
if (!fp)
@@ -407,19 +440,22 @@ static int store_updated_refs(const char *raw_url, const char *remote_name,
}
/*
- * The first pass writes objects to be merged and then the
- * second pass writes the rest, in order to allow using
- * FETCH_HEAD as a refname to refer to the ref to be merged.
+ * We do a pass for each fetch_head_status type in their enum order, so
+ * merged entries are written before not-for-merge. That lets readers
+ * use FETCH_HEAD as a refname to refer to the ref to be merged.
*/
- for (want_merge = 1; 0 <= want_merge; want_merge--) {
+ for (want_status = FETCH_HEAD_MERGE;
+ want_status <= FETCH_HEAD_IGNORE;
+ want_status++) {
for (rm = ref_map; rm; rm = rm->next) {
struct ref *ref = NULL;
+ const char *merge_status_marker = "";
commit = lookup_commit_reference_gently(rm->old_sha1, 1);
if (!commit)
- rm->merge = 0;
+ rm->fetch_head_status = FETCH_HEAD_NOT_FOR_MERGE;
- if (rm->merge != want_merge)
+ if (rm->fetch_head_status != want_status)
continue;
if (rm->peer_ref) {
@@ -465,16 +501,26 @@ static int store_updated_refs(const char *raw_url, const char *remote_name,
strbuf_addf(&note, "%s ", kind);
strbuf_addf(&note, "'%s' of ", what);
}
- fprintf(fp, "%s\t%s\t%s",
- sha1_to_hex(rm->old_sha1),
- rm->merge ? "" : "not-for-merge",
- note.buf);
- for (i = 0; i < url_len; ++i)
- if ('\n' == url[i])
- fputs("\\n", fp);
- else
- fputc(url[i], fp);
- fputc('\n', fp);
+ switch (rm->fetch_head_status) {
+ case FETCH_HEAD_NOT_FOR_MERGE:
+ merge_status_marker = "not-for-merge";
+ /* fall-through */
+ case FETCH_HEAD_MERGE:
+ fprintf(fp, "%s\t%s\t%s",
+ sha1_to_hex(rm->old_sha1),
+ merge_status_marker,
+ note.buf);
+ for (i = 0; i < url_len; ++i)
+ if ('\n' == url[i])
+ fputs("\\n", fp);
+ else
+ fputc(url[i], fp);
+ fputc('\n', fp);
+ break;
+ default:
+ /* do not write anything to FETCH_HEAD */
+ break;
+ }
strbuf_reset(&note);
if (ref) {
@@ -571,7 +617,8 @@ static int add_existing(const char *refname, const unsigned char *sha1,
{
struct string_list *list = (struct string_list *)cbdata;
struct string_list_item *item = string_list_insert(list, refname);
- item->util = (void *)sha1;
+ item->util = xmalloc(20);
+ hashcpy(item->util, sha1);
return 0;
}
@@ -590,7 +637,7 @@ static void find_non_local_tags(struct transport *transport,
struct ref **head,
struct ref ***tail)
{
- struct string_list existing_refs = STRING_LIST_INIT_NODUP;
+ struct string_list existing_refs = STRING_LIST_INIT_DUP;
struct string_list remote_refs = STRING_LIST_INIT_NODUP;
const struct ref *ref;
struct string_list_item *item = NULL;
@@ -636,7 +683,7 @@ static void find_non_local_tags(struct transport *transport,
item = string_list_insert(&remote_refs, ref->name);
item->util = (void *)ref->old_sha1;
}
- string_list_clear(&existing_refs, 0);
+ string_list_clear(&existing_refs, 1);
/*
* We may have a final lightweight tag that needs to be
@@ -690,14 +737,56 @@ static int truncate_fetch_head(void)
return 0;
}
+static void set_option(struct transport *transport, 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"),
+ name, value, transport->url);
+ if (r > 0)
+ warning(_("Option \"%s\" is ignored for %s\n"),
+ name, transport->url);
+}
+
+static struct transport *prepare_transport(struct remote *remote)
+{
+ struct transport *transport;
+ transport = transport_get(remote, NULL);
+ transport_set_verbosity(transport, verbosity, progress);
+ if (upload_pack)
+ set_option(transport, TRANS_OPT_UPLOADPACK, upload_pack);
+ if (keep)
+ set_option(transport, TRANS_OPT_KEEP, "yes");
+ if (depth)
+ set_option(transport, TRANS_OPT_DEPTH, depth);
+ return transport;
+}
+
+static void backfill_tags(struct transport *transport, struct ref *ref_map)
+{
+ if (transport->cannot_reuse) {
+ gsecondary = prepare_transport(transport->remote);
+ transport = gsecondary;
+ }
+
+ transport_set_option(transport, TRANS_OPT_FOLLOWTAGS, NULL);
+ transport_set_option(transport, TRANS_OPT_DEPTH, "0");
+ fetch_refs(transport, ref_map);
+
+ if (gsecondary) {
+ transport_disconnect(gsecondary);
+ gsecondary = NULL;
+ }
+}
+
static int do_fetch(struct transport *transport,
struct refspec *refs, int ref_count)
{
- struct string_list existing_refs = STRING_LIST_INIT_NODUP;
- struct string_list_item *peer_item = NULL;
+ struct string_list existing_refs = STRING_LIST_INIT_DUP;
struct ref *ref_map;
struct ref *rm;
int autotags = (transport->remote->fetch_tags == 1);
+ int retcode = 0;
for_each_ref(add_existing, &existing_refs);
@@ -713,9 +802,9 @@ static int do_fetch(struct transport *transport,
/* if not appending, truncate FETCH_HEAD */
if (!append && !dry_run) {
- int errcode = truncate_fetch_head();
- if (errcode)
- return errcode;
+ retcode = truncate_fetch_head();
+ if (retcode)
+ goto cleanup;
}
ref_map = get_ref_map(transport, refs, ref_count, tags, &autotags);
@@ -724,8 +813,9 @@ static int do_fetch(struct transport *transport,
for (rm = ref_map; rm; rm = rm->next) {
if (rm->peer_ref) {
- peer_item = string_list_lookup(&existing_refs,
- rm->peer_ref->name);
+ struct string_list_item *peer_item =
+ string_list_lookup(&existing_refs,
+ rm->peer_ref->name);
if (peer_item)
hashcpy(rm->peer_ref->old_sha1,
peer_item->util);
@@ -736,10 +826,14 @@ static int do_fetch(struct transport *transport,
transport_set_option(transport, TRANS_OPT_FOLLOWTAGS, "1");
if (fetch_refs(transport, ref_map)) {
free_refs(ref_map);
- return 1;
+ retcode = 1;
+ goto cleanup;
}
if (prune) {
- /* If --tags was specified, pretend the user gave us the canonical tags refspec */
+ /*
+ * If --tags was specified, pretend that the user gave us
+ * the canonical tags refspec
+ */
if (tags == TAGS_SET) {
const char *tags_str = "refs/tags/*:refs/tags/*";
struct refspec *tags_refspec, *refspec;
@@ -771,26 +865,14 @@ static int do_fetch(struct transport *transport,
struct ref **tail = &ref_map;
ref_map = NULL;
find_non_local_tags(transport, &ref_map, &tail);
- if (ref_map) {
- transport_set_option(transport, TRANS_OPT_FOLLOWTAGS, NULL);
- transport_set_option(transport, TRANS_OPT_DEPTH, "0");
- fetch_refs(transport, ref_map);
- }
+ if (ref_map)
+ backfill_tags(transport, ref_map);
free_refs(ref_map);
}
- return 0;
-}
-
-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"),
- name, value, transport->url);
- if (r > 0)
- warning(_("Option \"%s\" is ignored for %s\n"),
- name, transport->url);
+ cleanup:
+ string_list_clear(&existing_refs, 1);
+ return retcode;
}
static int get_one_remote_for_fetch(struct remote *remote, void *priv)
@@ -848,7 +930,7 @@ static void add_options_to_argv(struct argv_array *argv)
{
if (dry_run)
argv_array_push(argv, "--dry-run");
- if (prune)
+ if (prune > 0)
argv_array_push(argv, "--prune");
if (update_head_ok)
argv_array_push(argv, "--update-head-ok");
@@ -915,14 +997,17 @@ static int fetch_one(struct remote *remote, int argc, const char **argv)
die(_("No remote repository specified. Please, specify either a URL or a\n"
"remote name from which new revisions should be fetched."));
- transport = transport_get(remote, NULL);
- transport_set_verbosity(transport, verbosity, progress);
- if (upload_pack)
- set_option(TRANS_OPT_UPLOADPACK, upload_pack);
- if (keep)
- set_option(TRANS_OPT_KEEP, "yes");
- if (depth)
- set_option(TRANS_OPT_DEPTH, depth);
+ gtransport = prepare_transport(remote);
+
+ if (prune < 0) {
+ /* no command line request */
+ if (0 <= gtransport->remote->prune)
+ prune = gtransport->remote->prune;
+ else if (0 <= fetch_prune_config)
+ prune = fetch_prune_config;
+ else
+ prune = PRUNE_BY_DEFAULT;
+ }
if (argc > 0) {
int j = 0;
@@ -949,10 +1034,10 @@ static int fetch_one(struct remote *remote, int argc, const char **argv)
sigchain_push_common(unlock_pack_on_signal);
atexit(unlock_pack);
refspec = parse_fetch_refspec(ref_nr, refs);
- exit_code = do_fetch(transport, refspec, ref_nr);
+ exit_code = do_fetch(gtransport, refspec, ref_nr);
free_refspec(ref_nr, refspec);
- transport_disconnect(transport);
- transport = NULL;
+ transport_disconnect(gtransport);
+ gtransport = NULL;
return exit_code;
}
@@ -973,6 +1058,8 @@ int cmd_fetch(int argc, const char **argv, const char *prefix)
for (i = 1; i < argc; i++)
strbuf_addf(&default_rla, " %s", argv[i]);
+ git_config(git_fetch_config, NULL);
+
argc = parse_options(argc, argv, prefix,
builtin_fetch_options, builtin_fetch_usage, 0);
generated by cgit v1.2.3 (git 2.25.1) at 2024-10-11 08:27:15 +0000