Housekeeping jobs like auto gc generally should not get in the way.
Users who are pushing may not want to wait until auto gc is done on
the server. Give a hint for those users that it's safe now to break
"git push" and stop waiting.

Signed-off-by: Nguyễn Thái Ngọc Duy <>
 This bandage patch may be a good compromise between running auto gc
 and not annoying users much.
 If I'm not mistaken, when ^C on "git push" this way, gc will still be
 running until it needs to print something out (which it should not
 normally because of --quiet). The user won't see gc errors, but the
 user generally can't do much anyway.

 builtin/gc.c           | 9 ++++++++-
 builtin/receive-pack.c | 2 +-
 2 files changed, 9 insertions(+), 2 deletions(-)

diff --git a/builtin/gc.c b/builtin/gc.c
index c19545d..592271a 100644
--- a/builtin/gc.c
+++ b/builtin/gc.c
@@ -253,6 +253,7 @@ int cmd_gc(int argc, const char **argv, const char *prefix)
        int auto_gc = 0;
        int quiet = 0;
        int force = 0;
+       int break_ok = 0;
        const char *name;
        pid_t pid;
@@ -263,6 +264,8 @@ int cmd_gc(int argc, const char **argv, const char *prefix)
                        PARSE_OPT_OPTARG, NULL, (intptr_t)prune_expire },
                OPT_BOOL(0, "aggressive", &aggressive, N_("be more thorough 
(increased runtime)")),
                OPT_BOOL(0, "auto", &auto_gc, N_("enable auto-gc mode")),
+               OPT_HIDDEN_BOOL(0, "break-ok", &break_ok,
+                               "hint that it is ok to stop the program"),
                OPT_BOOL(0, "force", &force, N_("force running gc even if there 
may be another gc running")),
@@ -301,7 +304,11 @@ int cmd_gc(int argc, const char **argv, const char *prefix)
                if (!need_to_gc())
                        return 0;
-               if (!quiet)
+               if (break_ok)
+                       fprintf(stderr,
+                               _("Auto packing the repository for optimum 
+                                 "It is safe to stop the program with 
+               else if (!quiet)
                                        _("Auto packing the repository for 
optimum performance. You may also\n"
                                        "run \"git gc\" manually. See "
diff --git a/builtin/receive-pack.c b/builtin/receive-pack.c
index 82e2f76..68d16e0 100644
--- a/builtin/receive-pack.c
+++ b/builtin/receive-pack.c
@@ -1212,7 +1212,7 @@ int cmd_receive_pack(int argc, const char **argv, const 
char *prefix)
                if (auto_gc) {
                        const char *argv_gc_auto[] = {
-                               "gc", "--auto", "--quiet", NULL,
+                               "gc", "--auto", "--quiet", "--break-ok", NULL,
                        int opt = RUN_GIT_CMD | RUN_COMMAND_STDOUT_TO_STDERR;
                        run_command_v_opt(argv_gc_auto, opt);

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