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-rw-r--r--builtin-fetch.c335
1 files changed, 274 insertions, 61 deletions
diff --git a/builtin-fetch.c b/builtin-fetch.c
index cb48c57ca..8654fa7a2 100644
--- a/builtin-fetch.c
+++ b/builtin-fetch.c
@@ -14,6 +14,9 @@
static const char * const builtin_fetch_usage[] = {
"git fetch [options] [<repository> <refspec>...]",
+ "git fetch [options] <group>",
+ "git fetch --multiple [options] [<repository> | <group>]...",
+ "git fetch --all [options]",
NULL
};
@@ -23,7 +26,7 @@ enum {
TAGS_SET = 2
};
-static int append, force, keep, update_head_ok, verbosity;
+static int all, append, dry_run, force, keep, multiple, prune, update_head_ok, verbosity;
static int tags = TAGS_DEFAULT;
static const char *depth;
static const char *upload_pack;
@@ -32,16 +35,24 @@ static struct transport *transport;
static struct option builtin_fetch_options[] = {
OPT__VERBOSITY(&verbosity),
+ OPT_BOOLEAN(0, "all", &all,
+ "fetch from all remotes"),
OPT_BOOLEAN('a', "append", &append,
"append to .git/FETCH_HEAD instead of overwriting"),
OPT_STRING(0, "upload-pack", &upload_pack, "PATH",
"path to upload pack on remote end"),
OPT_BOOLEAN('f', "force", &force,
"force overwrite of local branch"),
+ OPT_BOOLEAN('m', "multiple", &multiple,
+ "fetch from multiple remotes"),
OPT_SET_INT('t', "tags", &tags,
"fetch all tags and associated objects", TAGS_SET),
OPT_SET_INT('n', NULL, &tags,
"do not fetch all tags (--no-tags)", TAGS_UNSET),
+ OPT_BOOLEAN('p', "prune", &prune,
+ "prune tracking branches no longer on remote"),
+ OPT_BOOLEAN(0, "dry-run", &dry_run,
+ "dry run"),
OPT_BOOLEAN('k', "keep", &keep, "keep downloaded pack"),
OPT_BOOLEAN('u', "update-head-ok", &update_head_ok,
"allow updating of HEAD ref"),
@@ -178,6 +189,8 @@ static int s_update_ref(const char *action,
char *rla = getenv("GIT_REFLOG_ACTION");
static struct ref_lock *lock;
+ if (dry_run)
+ return 0;
if (!rla)
rla = default_rla.buf;
snprintf(msg, sizeof(msg), "%s: %s", rla, action);
@@ -269,7 +282,7 @@ static int update_local_ref(struct ref *ref,
strcpy(quickref, find_unique_abbrev(current->object.sha1, DEFAULT_ABBREV));
strcat(quickref, "..");
strcat(quickref, find_unique_abbrev(ref->new_sha1, DEFAULT_ABBREV));
- r = s_update_ref("fast forward", ref, 1);
+ r = s_update_ref("fast-forward", ref, 1);
sprintf(display, "%c %-*s %-*s -> %s%s", r ? '!' : ' ',
SUMMARY_WIDTH, quickref, REFCOL_WIDTH, remote,
pretty_ref, r ? " (unable to update local ref)" : "");
@@ -287,7 +300,7 @@ static int update_local_ref(struct ref *ref,
r ? "unable to update local ref" : "forced update");
return r;
} else {
- sprintf(display, "! %-*s %-*s -> %s (non fast forward)",
+ sprintf(display, "! %-*s %-*s -> %s (non-fast-forward)",
SUMMARY_WIDTH, "[rejected]", REFCOL_WIDTH, remote,
pretty_ref);
return 1;
@@ -303,13 +316,16 @@ static int store_updated_refs(const char *raw_url, const char *remote_name,
char note[1024];
const char *what, *kind;
struct ref *rm;
- char *url, *filename = git_path("FETCH_HEAD");
+ char *url, *filename = dry_run ? "/dev/null" : 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);
+ if (raw_url)
+ url = transport_anonymize_url(raw_url);
+ else
+ url = xstrdup("foreign");
for (rm = ref_map; rm; rm = rm->next) {
struct ref *ref = NULL;
@@ -485,11 +501,34 @@ static int fetch_refs(struct transport *transport, struct ref *ref_map)
return ret;
}
+static int prune_refs(struct transport *transport, struct ref *ref_map)
+{
+ int result = 0;
+ struct ref *ref, *stale_refs = get_stale_heads(transport->remote, ref_map);
+ const char *dangling_msg = dry_run
+ ? " (%s will become dangling)\n"
+ : " (%s has become dangling)\n";
+
+ for (ref = stale_refs; ref; ref = ref->next) {
+ if (!dry_run)
+ result |= delete_ref(ref->name, NULL, 0);
+ if (verbosity >= 0) {
+ fprintf(stderr, " x %-*s %-*s -> %s\n",
+ SUMMARY_WIDTH, "[deleted]",
+ REFCOL_WIDTH, "(none)", prettify_refname(ref->name));
+ warn_dangling_symref(stderr, dangling_msg, ref->name);
+ }
+ }
+ free_refs(stale_refs);
+ return result;
+}
+
static int add_existing(const char *refname, const unsigned char *sha1,
int flag, void *cbdata)
{
struct string_list *list = (struct string_list *)cbdata;
- string_list_insert(refname, list);
+ struct string_list_item *item = string_list_insert(refname, list);
+ item->util = (void *)sha1;
return 0;
}
@@ -504,57 +543,98 @@ static int will_fetch(struct ref **head, const unsigned char *sha1)
return 0;
}
+struct tag_data {
+ struct ref **head;
+ struct ref ***tail;
+};
+
+static int add_to_tail(struct string_list_item *item, void *cb_data)
+{
+ struct tag_data *data = (struct tag_data *)cb_data;
+ struct ref *rm = NULL;
+
+ /* We have already decided to ignore this item */
+ if (!item->util)
+ return 0;
+
+ rm = alloc_ref(item->string);
+ rm->peer_ref = alloc_ref(item->string);
+ hashcpy(rm->old_sha1, item->util);
+
+ **data->tail = rm;
+ *data->tail = &rm->next;
+
+ return 0;
+}
+
static void find_non_local_tags(struct transport *transport,
struct ref **head,
struct ref ***tail)
{
struct string_list existing_refs = { NULL, 0, 0, 0 };
- struct string_list new_refs = { NULL, 0, 0, 1 };
- char *ref_name;
- int ref_name_len;
- const unsigned char *ref_sha1;
- const struct ref *tag_ref;
- struct ref *rm = NULL;
+ struct string_list remote_refs = { NULL, 0, 0, 0 };
+ struct tag_data data = {head, tail};
const struct ref *ref;
+ struct string_list_item *item = NULL;
for_each_ref(add_existing, &existing_refs);
for (ref = transport_get_remote_refs(transport); ref; ref = ref->next) {
if (prefixcmp(ref->name, "refs/tags"))
continue;
- ref_name = xstrdup(ref->name);
- ref_name_len = strlen(ref_name);
- ref_sha1 = ref->old_sha1;
-
- if (!strcmp(ref_name + ref_name_len - 3, "^{}")) {
- ref_name[ref_name_len - 3] = 0;
- tag_ref = transport_get_remote_refs(transport);
- while (tag_ref) {
- if (!strcmp(tag_ref->name, ref_name)) {
- ref_sha1 = tag_ref->old_sha1;
- break;
- }
- tag_ref = tag_ref->next;
- }
+ /*
+ * The peeled ref always follows the matching base
+ * ref, so if we see a peeled ref that we don't want
+ * to fetch then we can mark the ref entry in the list
+ * as one to ignore by setting util to NULL.
+ */
+ if (!strcmp(ref->name + strlen(ref->name) - 3, "^{}")) {
+ if (item && !has_sha1_file(ref->old_sha1) &&
+ !will_fetch(head, ref->old_sha1) &&
+ !has_sha1_file(item->util) &&
+ !will_fetch(head, item->util))
+ item->util = NULL;
+ item = NULL;
+ continue;
}
- if (!string_list_has_string(&existing_refs, ref_name) &&
- !string_list_has_string(&new_refs, ref_name) &&
- (has_sha1_file(ref->old_sha1) ||
- will_fetch(head, ref->old_sha1))) {
- string_list_insert(ref_name, &new_refs);
+ /*
+ * If item is non-NULL here, then we previously saw a
+ * ref not followed by a peeled reference, so we need
+ * to check if it is a lightweight tag that we want to
+ * fetch.
+ */
+ if (item && !has_sha1_file(item->util) &&
+ !will_fetch(head, item->util))
+ item->util = NULL;
- rm = alloc_ref(ref_name);
- rm->peer_ref = alloc_ref(ref_name);
- hashcpy(rm->old_sha1, ref_sha1);
+ item = NULL;
- **tail = rm;
- *tail = &rm->next;
- }
- free(ref_name);
+ /* skip duplicates and refs that we already have */
+ if (string_list_has_string(&remote_refs, ref->name) ||
+ string_list_has_string(&existing_refs, ref->name))
+ continue;
+
+ item = string_list_insert(ref->name, &remote_refs);
+ item->util = (void *)ref->old_sha1;
}
string_list_clear(&existing_refs, 0);
- string_list_clear(&new_refs, 0);
+
+ /*
+ * We may have a final lightweight tag that needs to be
+ * checked to see if it needs fetching.
+ */
+ if (item && !has_sha1_file(item->util) &&
+ !will_fetch(head, item->util))
+ item->util = NULL;
+
+ /*
+ * For all the tags in the remote_refs string list, call
+ * add_to_tail to add them to the list of refs to be fetched
+ */
+ for_each_string_list(add_to_tail, &remote_refs, &data);
+
+ string_list_clear(&remote_refs, 0);
}
static void check_not_current_branch(struct ref *ref_map)
@@ -574,9 +654,14 @@ static void check_not_current_branch(struct ref *ref_map)
static int do_fetch(struct transport *transport,
struct refspec *refs, int ref_count)
{
+ struct string_list existing_refs = { NULL, 0, 0, 0 };
+ struct string_list_item *peer_item = NULL;
struct ref *ref_map;
struct ref *rm;
int autotags = (transport->remote->fetch_tags == 1);
+
+ for_each_ref(add_existing, &existing_refs);
+
if (transport->remote->fetch_tags == 2 && tags != TAGS_UNSET)
tags = TAGS_SET;
if (transport->remote->fetch_tags == -1)
@@ -586,7 +671,7 @@ static int do_fetch(struct transport *transport,
die("Don't know how to fetch from %s", transport->url);
/* if not appending, truncate FETCH_HEAD */
- if (!append) {
+ if (!append && !dry_run) {
char *filename = git_path("FETCH_HEAD");
FILE *fp = fopen(filename, "w");
if (!fp)
@@ -599,8 +684,13 @@ static int do_fetch(struct transport *transport,
check_not_current_branch(ref_map);
for (rm = ref_map; rm; rm = rm->next) {
- if (rm->peer_ref)
- read_ref(rm->peer_ref->name, rm->peer_ref->old_sha1);
+ if (rm->peer_ref) {
+ peer_item = string_list_lookup(rm->peer_ref->name,
+ &existing_refs);
+ if (peer_item)
+ hashcpy(rm->peer_ref->old_sha1,
+ peer_item->util);
+ }
}
if (tags == TAGS_DEFAULT && autotags)
@@ -609,6 +699,8 @@ static int do_fetch(struct transport *transport,
free_refs(ref_map);
return 1;
}
+ if (prune)
+ prune_refs(transport, ref_map);
free_refs(ref_map);
/* if neither --no-tags nor --tags was specified, do automated tag
@@ -639,33 +731,100 @@ static void set_option(const char *name, const char *value)
name, transport->url);
}
-int cmd_fetch(int argc, const char **argv, const char *prefix)
+static int get_one_remote_for_fetch(struct remote *remote, void *priv)
+{
+ struct string_list *list = priv;
+ if (!remote->skip_default_update)
+ string_list_append(remote->name, list);
+ return 0;
+}
+
+struct remote_group_data {
+ const char *name;
+ struct string_list *list;
+};
+
+static int get_remote_group(const char *key, const char *value, void *priv)
+{
+ struct remote_group_data *g = priv;
+
+ if (!prefixcmp(key, "remotes.") &&
+ !strcmp(key + 8, g->name)) {
+ /* split list by white space */
+ int space = strcspn(value, " \t\n");
+ while (*value) {
+ if (space > 1) {
+ string_list_append(xstrndup(value, space),
+ g->list);
+ }
+ value += space + (value[space] != '\0');
+ space = strcspn(value, " \t\n");
+ }
+ }
+
+ return 0;
+}
+
+static int add_remote_or_group(const char *name, struct string_list *list)
+{
+ int prev_nr = list->nr;
+ struct remote_group_data g = { name, list };
+
+ git_config(get_remote_group, &g);
+ if (list->nr == prev_nr) {
+ struct remote *remote;
+ if (!remote_is_configured(name))
+ return 0;
+ remote = remote_get(name);
+ string_list_append(remote->name, list);
+ }
+ return 1;
+}
+
+static int fetch_multiple(struct string_list *list)
+{
+ int i, result = 0;
+ const char *argv[] = { "fetch", NULL, NULL, NULL, NULL, NULL, NULL };
+ int argc = 1;
+
+ if (dry_run)
+ argv[argc++] = "--dry-run";
+ if (prune)
+ argv[argc++] = "--prune";
+ if (verbosity >= 2)
+ argv[argc++] = "-v";
+ if (verbosity >= 1)
+ argv[argc++] = "-v";
+ else if (verbosity < 0)
+ argv[argc++] = "-q";
+
+ for (i = 0; i < list->nr; i++) {
+ const char *name = list->items[i].string;
+ argv[argc] = name;
+ if (verbosity >= 0)
+ printf("Fetching %s\n", name);
+ if (run_command_v_opt(argv, RUN_GIT_CMD)) {
+ error("Could not fetch %s", name);
+ result = 1;
+ }
+ }
+
+ return result;
+}
+
+static int fetch_one(struct remote *remote, int argc, const char **argv)
{
- struct remote *remote;
int i;
static const char **refs = NULL;
int ref_nr = 0;
int exit_code;
- /* Record the command line for the reflog */
- strbuf_addstr(&default_rla, "fetch");
- for (i = 1; i < argc; i++)
- strbuf_addf(&default_rla, " %s", argv[i]);
-
- argc = parse_options(argc, argv, prefix,
- builtin_fetch_options, builtin_fetch_usage, 0);
-
- if (argc == 0)
- remote = remote_get(NULL);
- else
- remote = remote_get(argv[0]);
-
if (!remote)
die("Where do you want to fetch from today?");
- transport = transport_get(remote, remote->url[0]);
+ transport = transport_get(remote, NULL);
if (verbosity >= 2)
- transport->verbose = 1;
+ transport->verbose = verbosity <= 3 ? verbosity : 3;
if (verbosity < 0)
transport->verbose = -1;
if (upload_pack)
@@ -675,10 +834,10 @@ int cmd_fetch(int argc, const char **argv, const char *prefix)
if (depth)
set_option(TRANS_OPT_DEPTH, depth);
- if (argc > 1) {
+ if (argc > 0) {
int j = 0;
refs = xcalloc(argc + 1, sizeof(const char *));
- for (i = 1; i < argc; i++) {
+ for (i = 0; i < argc; i++) {
if (!strcmp(argv[i], "tag")) {
char *ref;
i++;
@@ -705,3 +864,57 @@ int cmd_fetch(int argc, const char **argv, const char *prefix)
transport = NULL;
return exit_code;
}
+
+int cmd_fetch(int argc, const char **argv, const char *prefix)
+{
+ int i;
+ struct string_list list = { NULL, 0, 0, 0 };
+ struct remote *remote;
+ int result = 0;
+
+ /* Record the command line for the reflog */
+ strbuf_addstr(&default_rla, "fetch");
+ for (i = 1; i < argc; i++)
+ strbuf_addf(&default_rla, " %s", argv[i]);
+
+ argc = parse_options(argc, argv, prefix,
+ builtin_fetch_options, builtin_fetch_usage, 0);
+
+ if (all) {
+ if (argc == 1)
+ die("fetch --all does not take a repository argument");
+ else if (argc > 1)
+ die("fetch --all does not make sense with refspecs");
+ (void) for_each_remote(get_one_remote_for_fetch, &list);
+ result = fetch_multiple(&list);
+ } else if (argc == 0) {
+ /* No arguments -- use default remote */
+ remote = remote_get(NULL);
+ result = fetch_one(remote, argc, argv);
+ } else if (multiple) {
+ /* All arguments are assumed to be remotes or groups */
+ for (i = 0; i < argc; i++)
+ if (!add_remote_or_group(argv[i], &list))
+ die("No such remote or remote group: %s", argv[i]);
+ result = fetch_multiple(&list);
+ } else {
+ /* Single remote or group */
+ (void) add_remote_or_group(argv[0], &list);
+ if (list.nr > 1) {
+ /* More than one remote */
+ if (argc > 1)
+ die("Fetching a group and specifying refspecs does not make sense");
+ result = fetch_multiple(&list);
+ } else {
+ /* Zero or one remotes */
+ remote = remote_get(argv[0]);
+ result = fetch_one(remote, argc-1, argv+1);
+ }
+ }
+
+ /* All names were strdup()ed or strndup()ed */
+ list.strdup_strings = 1;
+ string_list_clear(&list, 0);
+
+ return result;
+}
generated by cgit v1.2.1 (git 2.18.0) at 2024-07-30 06:49:13 +0000