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Merge branch 'rc/fetch-refetch'

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"git fetch --refetch" learned to fetch everything without telling
the other side what we already have, which is useful when you
cannot trust what you have in the local object store.

* rc/fetch-refetch:
  docs: mention --refetch fetch option
  fetch: after refetch, encourage auto gc repacking
  t5615-partial-clone: add test for fetch --refetch
  fetch: add --refetch option
  builtin/fetch-pack: add --refetch option
  fetch-pack: add refetch
  fetch-negotiator: add specific noop initializer
This commit is contained in:
Junio C Hamano
2022-04-04 10:56:23 -07:00
parent 1b54f5b89a 4963d3e41f
commit 0f5e885173
15 changed files with 197 additions and 22 deletions
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34
builtin/fetch.c
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@ -59,7 +59,7 @@ static int prune_tags = -1; /* unspecified */
static int all, append, dry_run, force, keep, multiple, update_head_ok;
static int write_fetch_head = 1;
static int verbosity, deepen_relative, set_upstream;
static int verbosity, deepen_relative, set_upstream, refetch;
static int progress = -1;
static int enable_auto_gc = 1;
static int tags = TAGS_DEFAULT, unshallow, update_shallow, deepen;
@ -190,6 +190,9 @@ static struct option builtin_fetch_options[] = {
OPT_SET_INT_F(0, "unshallow", &unshallow,
N_("convert to a complete repository"),
1, PARSE_OPT_NONEG),
OPT_SET_INT_F(0, "refetch", &refetch,
N_("re-fetch without negotiating common commits"),
1, PARSE_OPT_NONEG),
{ OPTION_STRING, 0, "submodule-prefix", &submodule_prefix, N_("dir"),
N_("prepend this to submodule path output"), PARSE_OPT_HIDDEN },
OPT_CALLBACK_F(0, "recurse-submodules-default",
@ -1304,6 +1307,14 @@ static int check_exist_and_connected(struct ref *ref_map)
if (deepen)
return -1;
/*
* Similarly, if we need to refetch, we always want to perform a full
* fetch ignoring existing objects.
*/
if (refetch)
return -1;
/*
* check_connected() allows objects to merely be promised, but
* we need all direct targets to exist.
@ -1517,6 +1528,8 @@ static struct transport *prepare_transport(struct remote *remote, int deepen)
set_option(transport, TRANS_OPT_DEEPEN_RELATIVE, "yes");
if (update_shallow)
set_option(transport, TRANS_OPT_UPDATE_SHALLOW, "yes");
if (refetch)
set_option(transport, TRANS_OPT_REFETCH, "yes");
if (filter_options.choice) {
const char *spec =
expand_list_objects_filter_spec(&filter_options);
@ -2293,8 +2306,25 @@ int cmd_fetch(int argc, const char **argv, const char *prefix)
NULL);
}
if (enable_auto_gc)
if (enable_auto_gc) {
if (refetch) {
/*
* Hint auto-maintenance strongly to encourage repacking,
* but respect config settings disabling it.
*/
int opt_val;
if (git_config_get_int("gc.autopacklimit", &opt_val))
opt_val = -1;
if (opt_val != 0)
git_config_push_parameter("gc.autoPackLimit=1");
if (git_config_get_int("maintenance.incremental-repack.auto", &opt_val))
opt_val = -1;
if (opt_val != 0)
git_config_push_parameter("maintenance.incremental-repack.auto=-1");
}
run_auto_maintenance(verbosity < 0);
}
cleanup:
string_list_clear(&list, 0);