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authorJunio C Hamano <gitster@pobox.com>2021-04-30 04:50:25 (GMT)
committerJunio C Hamano <gitster@pobox.com>2021-04-30 04:50:25 (GMT)
commitd250f903596ee149dffcd65e3794dbd00b62f97e (patch)
tree17c224b8d01073c69ce66728f64f2e5a61d98e17 /builtin
parenta819e2b3ef7c27d04befa0a345c9e6e3c7a7965e (diff)
parent32f67888d85bd0af30b857a29ca25a55999b6d01 (diff)
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Merge branch 'ds/maintenance-prefetch-fix'
The prefetch task in "git maintenance" assumed that "git fetch" from any remote would fetch all its local branches, which would fetch too much if the user is interested in only a subset of branches there. * ds/maintenance-prefetch-fix: maintenance: respect remote.*.skipFetchAll maintenance: use 'git fetch --prefetch' fetch: add --prefetch option maintenance: simplify prefetch logic
Diffstat (limited to 'builtin')
-rw-r--r--builtin/fetch.c59
-rw-r--r--builtin/gc.c39
2 files changed, 70 insertions, 28 deletions
diff --git a/builtin/fetch.c b/builtin/fetch.c
index 0b90de8..97c4fe6 100644
--- a/builtin/fetch.c
+++ b/builtin/fetch.c
@@ -48,6 +48,7 @@ enum {
static int fetch_prune_config = -1; /* unspecified */
static int fetch_show_forced_updates = 1;
static uint64_t forced_updates_ms = 0;
+static int prefetch = 0;
static int prune = -1; /* unspecified */
#define PRUNE_BY_DEFAULT 0 /* do we prune by default? */
@@ -158,6 +159,8 @@ static struct option builtin_fetch_options[] = {
N_("do not fetch all tags (--no-tags)"), TAGS_UNSET),
OPT_INTEGER('j', "jobs", &max_jobs,
N_("number of submodules fetched in parallel")),
+ OPT_BOOL(0, "prefetch", &prefetch,
+ N_("modify the refspec to place all refs within refs/prefetch/")),
OPT_BOOL('p', "prune", &prune,
N_("prune remote-tracking branches no longer on remote")),
OPT_BOOL('P', "prune-tags", &prune_tags,
@@ -436,6 +439,56 @@ static void find_non_local_tags(const struct ref *refs,
oidset_clear(&fetch_oids);
}
+static void filter_prefetch_refspec(struct refspec *rs)
+{
+ int i;
+
+ if (!prefetch)
+ return;
+
+ for (i = 0; i < rs->nr; i++) {
+ struct strbuf new_dst = STRBUF_INIT;
+ char *old_dst;
+ const char *sub = NULL;
+
+ if (rs->items[i].negative)
+ continue;
+ if (!rs->items[i].dst ||
+ (rs->items[i].src &&
+ !strncmp(rs->items[i].src, "refs/tags/", 10))) {
+ int j;
+
+ free(rs->items[i].src);
+ free(rs->items[i].dst);
+
+ for (j = i + 1; j < rs->nr; j++) {
+ rs->items[j - 1] = rs->items[j];
+ rs->raw[j - 1] = rs->raw[j];
+ }
+ rs->nr--;
+ i--;
+ continue;
+ }
+
+ old_dst = rs->items[i].dst;
+ strbuf_addstr(&new_dst, "refs/prefetch/");
+
+ /*
+ * If old_dst starts with "refs/", then place
+ * sub after that prefix. Otherwise, start at
+ * the beginning of the string.
+ */
+ if (!skip_prefix(old_dst, "refs/", &sub))
+ sub = old_dst;
+ strbuf_addstr(&new_dst, sub);
+
+ rs->items[i].dst = strbuf_detach(&new_dst, NULL);
+ rs->items[i].force = 1;
+
+ free(old_dst);
+ }
+}
+
static struct ref *get_ref_map(struct remote *remote,
const struct ref *remote_refs,
struct refspec *rs,
@@ -452,6 +505,10 @@ static struct ref *get_ref_map(struct remote *remote,
struct hashmap existing_refs;
int existing_refs_populated = 0;
+ filter_prefetch_refspec(rs);
+ if (remote)
+ filter_prefetch_refspec(&remote->fetch);
+
if (rs->nr) {
struct refspec *fetch_refspec;
@@ -520,7 +577,7 @@ static struct ref *get_ref_map(struct remote *remote,
if (has_merge &&
!strcmp(branch->remote_name, remote->name))
add_merge_config(&ref_map, remote_refs, branch, &tail);
- } else {
+ } else if (!prefetch) {
ref_map = get_remote_ref(remote_refs, "HEAD");
if (!ref_map)
die(_("Couldn't find remote ref HEAD"));
diff --git a/builtin/gc.c b/builtin/gc.c
index ef7226d..98a8031 100644
--- a/builtin/gc.c
+++ b/builtin/gc.c
@@ -873,55 +873,40 @@ static int maintenance_task_commit_graph(struct maintenance_run_opts *opts)
return 0;
}
-static int fetch_remote(const char *remote, struct maintenance_run_opts *opts)
+static int fetch_remote(struct remote *remote, void *cbdata)
{
+ struct maintenance_run_opts *opts = cbdata;
struct child_process child = CHILD_PROCESS_INIT;
+ if (remote->skip_default_update)
+ return 0;
+
child.git_cmd = 1;
- strvec_pushl(&child.args, "fetch", remote, "--prune", "--no-tags",
+ strvec_pushl(&child.args, "fetch", remote->name,
+ "--prefetch", "--prune", "--no-tags",
"--no-write-fetch-head", "--recurse-submodules=no",
- "--refmap=", NULL);
+ NULL);
if (opts->quiet)
strvec_push(&child.args, "--quiet");
- strvec_pushf(&child.args, "+refs/heads/*:refs/prefetch/%s/*", remote);
-
return !!run_command(&child);
}
-static int append_remote(struct remote *remote, void *cbdata)
-{
- struct string_list *remotes = (struct string_list *)cbdata;
-
- string_list_append(remotes, remote->name);
- return 0;
-}
-
static int maintenance_task_prefetch(struct maintenance_run_opts *opts)
{
- int result = 0;
- struct string_list_item *item;
- struct string_list remotes = STRING_LIST_INIT_DUP;
-
git_config_set_multivar_gently("log.excludedecoration",
"refs/prefetch/",
"refs/prefetch/",
CONFIG_FLAGS_FIXED_VALUE |
CONFIG_FLAGS_MULTI_REPLACE);
- if (for_each_remote(append_remote, &remotes)) {
- error(_("failed to fill remotes"));
- result = 1;
- goto cleanup;
+ if (for_each_remote(fetch_remote, opts)) {
+ error(_("failed to prefetch remotes"));
+ return 1;
}
- for_each_string_list_item(item, &remotes)
- result |= fetch_remote(item->string, opts);
-
-cleanup:
- string_list_clear(&remotes, 0);
- return result;
+ return 0;
}
static int maintenance_task_gc(struct maintenance_run_opts *opts)