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[PATCH v2 2/2] gc: config option for running --auto in background

From
Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Date
Feb 8, 2014, 07:08 UTC
Message-ID
<1391843332-20583-2-git-send-email-pclouds@gmail.com>
In-Reply-To
<1391843332-20583-1-git-send-email-pclouds@gmail.com>

`gc --auto` takes time and can block the user temporarily (but not any less annoyingly). Make it run in background on systems that support it. The only thing lost with running in background is printouts. But gc output is not really interesting. You can keep it in foreground by changing gc.autodetach.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
---
 Documentation/config.txt |  4 ++++
 builtin/gc.c             | 23 ++++++++++++++++++-----
 t/t5400-send-pack.sh     |  1 +
 3 files changed, 23 insertions(+), 5 deletions(-)
diff --git a/Documentation/config.txt b/Documentation/config.txt
index 5f4d793..4781773 100644
--- a/Documentation/config.txt
+++ b/Documentation/config.txt
@@ -1167,6 +1167,10 @@ gc.autopacklimit::
 	--auto` consolidates them into one larger pack.  The
 	default	value is 50.  Setting this to 0 disables it.
 
+gc.autodetach::
+	Make `git gc --auto` return immediately andrun in background
+	if the system supports it. Default is true.
+
 gc.packrefs::
 	Running `git pack-refs` in a repository renders it
 	unclonable by Git versions prior to 1.5.1.2 over dumb
diff --git a/builtin/gc.c b/builtin/gc.c
index c19545d..ed5cc3c 100644
--- a/builtin/gc.c
+++ b/builtin/gc.c
@@ -29,6 +29,7 @@ static int pack_refs = 1;
 static int aggressive_window = 250;
 static int gc_auto_threshold = 6700;
 static int gc_auto_pack_limit = 50;
+static int detach_auto = 1;
 static const char *prune_expire = "2.weeks.ago";
 
 static struct argv_array pack_refs_cmd = ARGV_ARRAY_INIT;
@@ -73,6 +74,10 @@ static int gc_config(const char *var, const char *value, void *cb)
 		gc_auto_pack_limit = git_config_int(var, value);
 		return 0;
 	}
+	if (!strcmp(var, "gc.autodetach")) {
+		detach_auto = git_config_bool(var, value);
+		return 0;
+	}
 	if (!strcmp(var, "gc.pruneexpire")) {
 		if (value && strcmp(value, "now")) {
 			unsigned long now = approxidate("now");
@@ -301,11 +306,19 @@ int cmd_gc(int argc, const char **argv, const char *prefix)
 		 */
 		if (!need_to_gc())
 			return 0;
-		if (!quiet)
-			fprintf(stderr,
-					_("Auto packing the repository for optimum performance. You may also\n"
-					"run \"git gc\" manually. See "
-					"\"git help gc\" for more information.\n"));
+		if (!quiet) {
+			if (detach_auto)
+				fprintf(stderr, _("Auto packing the repository in background for optimum performance.\n"));
+			else
+				fprintf(stderr, _("Auto packing the repository for optimum performance.\n"));
+			fprintf(stderr, _("See \"git help gc\" for manual housekeeping.\n"));
+		}
+		if (detach_auto)
+			/*
+			 * failure to daemonize is ok, we'll continue
+			 * in foreground
+			 */
+			daemonize();
 	} else
 		add_repack_all_option();
 
diff --git a/t/t5400-send-pack.sh b/t/t5400-send-pack.sh
index 129fc88..0736bcb 100755
--- a/t/t5400-send-pack.sh
+++ b/t/t5400-send-pack.sh
@@ -164,6 +164,7 @@ test_expect_success 'receive-pack runs auto-gc in remote repo' '
 	    # Set the child to auto-pack if more than one pack exists
 	    cd child &&
 	    git config gc.autopacklimit 1 &&
+	    git config gc.autodetach false &&
 	    git branch test_auto_gc &&
 	    # And create a file that follows the temporary object naming
 	    # convention for the auto-gc to remove
-- 
1.8.5.2.240.g8478abd
Previous: Nguyễn Thái Ngọc DuyNext: Erik Faye-Lund
Message 13 of 30 in “bug? git push triggers auto pack when gc.auto = 0”
  1. chrisFeb 4, 2014
  2. Duy NguyenFeb 4, 2014
  3. chrisFeb 4, 2014
  4. Duy NguyenFeb 4, 2014
  5. 1/2 receive-pack: update $GIT_DIR/info before auto garbage collectionNguyễn Thái Ngọc Duy, Feb 4, 2014
  6. 2/2 receive-pack: hint that the user can stop "git push" at auto gc timeNguyễn Thái Ngọc Duy, Feb 4, 2014
  7. Junio C HamanoFeb 4, 2014
  8. Junio C HamanoFeb 4, 2014
  9. chrisFeb 7, 2014
  10. Duy NguyenFeb 7, 2014
  11. chrisFeb 7, 2014
  12. 1/2 daemon: move daemonize() to libgit.aNguyễn Thái Ngọc Duy, Feb 8, 2014
  13. 2/2 gc: config option for running --auto in backgroundNguyễn Thái Ngọc Duy, Feb 8, 2014
  14. Erik Faye-LundFeb 10, 2014
  15. Duy NguyenFeb 10, 2014
  16. Erik Faye-LundFeb 10, 2014
  17. Junio C HamanoFeb 10, 2014
  18. Junio C HamanoFeb 10, 2014
  19. Duy NguyenFeb 12, 2014
  20. Junio C HamanoFeb 12, 2014
  21. Erik Faye-LundFeb 10, 2014
  22. Junio C HamanoFeb 10, 2014
  23. Duy NguyenFeb 10, 2014
  24. Junio C HamanoFeb 11, 2014
  25. chrisFeb 4, 2014
  26. David KastrupFeb 4, 2014
  27. chrisFeb 4, 2014
  28. David KastrupFeb 4, 2014
  29. chrisFeb 4, 2014
  30. David KastrupFeb 4, 2014

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