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authorJunio C Hamano <gitster@pobox.com>2019-07-09 22:25:46 (GMT)
committerJunio C Hamano <gitster@pobox.com>2019-07-09 22:25:46 (GMT)
commitcde9a64ea35ceeaa5e8dd2da2662445510fe651c (patch)
tree9b4d154625ca23d792cda8f8a65419adcfba1fc7
parent34186225b3ca3109586fd63ee83aeea342dc668e (diff)
parent3883c55138dcfbe2d9a24e3f93a2a4b1d376dde6 (diff)
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Merge branch 'ds/fetch-disable-force-notice'
"git fetch" and "git pull" reports when a fetch results in non-fast-forward updates to let the user notice unusual situation. The commands learned "--no-shown-forced-updates" option to disable this safety feature. * ds/fetch-disable-force-notice: pull: add --[no-]show-forced-updates passthrough fetch: warn about forced updates in branch listing fetch: add --[no-]show-forced-updates argument
-rw-r--r--Documentation/config/advice.txt4
-rw-r--r--Documentation/config/fetch.txt5
-rw-r--r--Documentation/fetch-options.txt13
-rw-r--r--advice.c2
-rw-r--r--advice.h1
-rw-r--r--builtin/fetch.c34
-rw-r--r--builtin/pull.c7
-rwxr-xr-xt/t5510-fetch.sh23
8 files changed, 88 insertions, 1 deletions
diff --git a/Documentation/config/advice.txt b/Documentation/config/advice.txt
index 0103faa..ee85c53 100644
--- a/Documentation/config/advice.txt
+++ b/Documentation/config/advice.txt
@@ -4,6 +4,10 @@ advice.*::
can tell Git that you do not need help by setting these to 'false':
+
--
+ fetchShowForcedUpdates::
+ Advice shown when linkgit:git-fetch[1] takes a long time
+ to calculate forced updates after ref updates, or to warn
+ that the check is disabled.
pushUpdateRejected::
Set this variable to 'false' if you want to disable
'pushNonFFCurrent',
diff --git a/Documentation/config/fetch.txt b/Documentation/config/fetch.txt
index cbfad6c..ba890b5 100644
--- a/Documentation/config/fetch.txt
+++ b/Documentation/config/fetch.txt
@@ -63,3 +63,8 @@ fetch.negotiationAlgorithm::
Unknown values will cause 'git fetch' to error out.
+
See also the `--negotiation-tip` option for linkgit:git-fetch[1].
+
+fetch.showForcedUpdates::
+ Set to false to enable `--no-show-forced-updates` in
+ linkgit:git-fetch[1] and linkgit:git-pull[1] commands.
+ Defaults to true.
diff --git a/Documentation/fetch-options.txt b/Documentation/fetch-options.txt
index 592f391..3c9b4f9 100644
--- a/Documentation/fetch-options.txt
+++ b/Documentation/fetch-options.txt
@@ -225,6 +225,19 @@ endif::git-pull[]
When multiple `--server-option=<option>` are given, they are all
sent to the other side in the order listed on the command line.
+--show-forced-updates::
+ By default, git checks if a branch is force-updated during
+ fetch. This can be disabled through fetch.showForcedUpdates, but
+ the --show-forced-updates option guarantees this check occurs.
+ See linkgit:git-config[1].
+
+--no-show-forced-updates::
+ By default, git checks if a branch is force-updated during
+ fetch. Pass --no-show-forced-updates or set fetch.showForcedUpdates
+ to false to skip this check for performance reasons. If used during
+ 'git-pull' the --ff-only option will still check for forced updates
+ before attempting a fast-forward update. See linkgit:git-config[1].
+
-4::
--ipv4::
Use IPv4 addresses only, ignoring IPv6 addresses.
diff --git a/advice.c b/advice.c
index 2d330d2..67de6de 100644
--- a/advice.c
+++ b/advice.c
@@ -3,6 +3,7 @@
#include "color.h"
#include "help.h"
+int advice_fetch_show_forced_updates = 1;
int advice_push_update_rejected = 1;
int advice_push_non_ff_current = 1;
int advice_push_non_ff_matching = 1;
@@ -60,6 +61,7 @@ static struct {
const char *name;
int *preference;
} advice_config[] = {
+ { "fetchShowForcedUpdates", &advice_fetch_show_forced_updates },
{ "pushUpdateRejected", &advice_push_update_rejected },
{ "pushNonFFCurrent", &advice_push_non_ff_current },
{ "pushNonFFMatching", &advice_push_non_ff_matching },
diff --git a/advice.h b/advice.h
index c86de9b..940c4c2 100644
--- a/advice.h
+++ b/advice.h
@@ -3,6 +3,7 @@
#include "git-compat-util.h"
+extern int advice_fetch_show_forced_updates;
extern int advice_push_update_rejected;
extern int advice_push_non_ff_current;
extern int advice_push_non_ff_matching;
diff --git a/builtin/fetch.c b/builtin/fetch.c
index 667f2ce..53ce99d 100644
--- a/builtin/fetch.c
+++ b/builtin/fetch.c
@@ -24,6 +24,8 @@
#include "list-objects-filter-options.h"
#include "commit-reach.h"
+#define FORCED_UPDATES_DELAY_WARNING_IN_MS (10 * 1000)
+
static const char * const builtin_fetch_usage[] = {
N_("git fetch [<options>] [<repository> [<refspec>...]]"),
N_("git fetch [<options>] <group>"),
@@ -39,6 +41,8 @@ enum {
};
static int fetch_prune_config = -1; /* unspecified */
+static int fetch_show_forced_updates = 1;
+static uint64_t forced_updates_ms = 0;
static int prune = -1; /* unspecified */
#define PRUNE_BY_DEFAULT 0 /* do we prune by default? */
@@ -80,6 +84,11 @@ static int git_fetch_config(const char *k, const char *v, void *cb)
return 0;
}
+ if (!strcmp(k, "fetch.showforcedupdates")) {
+ fetch_show_forced_updates = git_config_bool(k, v);
+ return 0;
+ }
+
if (!strcmp(k, "submodule.recurse")) {
int r = git_config_bool(k, v) ?
RECURSE_SUBMODULES_ON : RECURSE_SUBMODULES_OFF;
@@ -172,6 +181,8 @@ static struct option builtin_fetch_options[] = {
OPT_PARSE_LIST_OBJECTS_FILTER(&filter_options),
OPT_BOOL(0, "auto-gc", &enable_auto_gc,
N_("run 'gc --auto' after fetching")),
+ OPT_BOOL(0, "show-forced-updates", &fetch_show_forced_updates,
+ N_("check for forced-updates on all updated branches")),
OPT_END()
};
@@ -710,6 +721,7 @@ static int update_local_ref(struct ref *ref,
enum object_type type;
struct branch *current_branch = branch_get(NULL);
const char *pretty_ref = prettify_refname(ref->name);
+ int fast_forward = 0;
type = oid_object_info(the_repository, &ref->new_oid, NULL);
if (type < 0)
@@ -784,9 +796,18 @@ static int update_local_ref(struct ref *ref,
return r;
}
- if (in_merge_bases(current, updated)) {
+ if (fetch_show_forced_updates) {
+ uint64_t t_before = getnanotime();
+ fast_forward = in_merge_bases(current, updated);
+ forced_updates_ms += (getnanotime() - t_before) / 1000000;
+ } else {
+ fast_forward = 1;
+ }
+
+ if (fast_forward) {
struct strbuf quickref = STRBUF_INIT;
int r;
+
strbuf_add_unique_abbrev(&quickref, &current->object.oid, DEFAULT_ABBREV);
strbuf_addstr(&quickref, "..");
strbuf_add_unique_abbrev(&quickref, &ref->new_oid, DEFAULT_ABBREV);
@@ -982,6 +1003,17 @@ static int store_updated_refs(const char *raw_url, const char *remote_name,
" 'git remote prune %s' to remove any old, conflicting "
"branches"), remote_name);
+ if (advice_fetch_show_forced_updates) {
+ if (!fetch_show_forced_updates) {
+ warning(_("Fetch normally indicates which branches had a forced update, but that check has been disabled."));
+ warning(_("To re-enable, use '--show-forced-updates' flag or run 'git config fetch.showForcedUpdates true'."));
+ } else if (forced_updates_ms > FORCED_UPDATES_DELAY_WARNING_IN_MS) {
+ warning(_("It took %.2f seconds to check forced updates. You can use '--no-show-forced-updates'\n"),
+ forced_updates_ms / 1000.0);
+ warning(_("or run 'git config fetch.showForcedUpdates false' to avoid this check.\n"));
+ }
+ }
+
abort:
strbuf_release(&note);
free(url);
diff --git a/builtin/pull.c b/builtin/pull.c
index 9dd32a1..f1eaf6e 100644
--- a/builtin/pull.c
+++ b/builtin/pull.c
@@ -128,6 +128,7 @@ static char *opt_update_shallow;
static char *opt_refmap;
static char *opt_ipv4;
static char *opt_ipv6;
+static int opt_show_forced_updates = -1;
static struct option pull_options[] = {
/* Shared options */
@@ -240,6 +241,8 @@ static struct option pull_options[] = {
OPT_PASSTHRU('6', "ipv6", &opt_ipv6, NULL,
N_("use IPv6 addresses only"),
PARSE_OPT_NOARG),
+ OPT_BOOL(0, "show-forced-updates", &opt_show_forced_updates,
+ N_("check for forced-updates on all updated branches")),
OPT_END()
};
@@ -549,6 +552,10 @@ static int run_fetch(const char *repo, const char **refspecs)
argv_array_push(&args, opt_ipv4);
if (opt_ipv6)
argv_array_push(&args, opt_ipv6);
+ if (opt_show_forced_updates > 0)
+ argv_array_push(&args, "--show-forced-updates");
+ else if (opt_show_forced_updates == 0)
+ argv_array_push(&args, "--no-show-forced-updates");
if (repo) {
argv_array_push(&args, repo);
diff --git a/t/t5510-fetch.sh b/t/t5510-fetch.sh
index e98d90d..139f710 100755
--- a/t/t5510-fetch.sh
+++ b/t/t5510-fetch.sh
@@ -978,4 +978,27 @@ test_expect_success '--negotiation-tip limits "have" lines sent with HTTP protoc
check_negotiation_tip
'
+test_expect_success '--no-show-forced-updates' '
+ mkdir forced-updates &&
+ (
+ cd forced-updates &&
+ git init &&
+ test_commit 1 &&
+ test_commit 2
+ ) &&
+ git clone forced-updates forced-update-clone &&
+ git clone forced-updates no-forced-update-clone &&
+ git -C forced-updates reset --hard HEAD~1 &&
+ (
+ cd forced-update-clone &&
+ git fetch --show-forced-updates origin 2>output &&
+ test_i18ngrep "(forced update)" output
+ ) &&
+ (
+ cd no-forced-update-clone &&
+ git fetch --no-show-forced-updates origin 2>output &&
+ ! test_i18ngrep "(forced update)" output
+ )
+'
+
test_done