reset: add new reset.quiet config setting

Add a reset.quiet config setting that sets the default value of the --quiet
flag when running the reset command.  This enables users to change the
default behavior to take advantage of the performance advantages of
avoiding the scan for unstaged changes after reset.  Defaults to false.

Signed-off-by: Ben Peart <benpeart@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

Documentation/config.txt

@@ -2753,6 +2753,9 @@ rerere.enabled::
 	`$GIT_DIR`, e.g. if "rerere" was previously used in the
 	repository.
 
+reset.quiet::
+	When set to true, 'git reset' will default to the '--quiet' option.
+
 include::sendemail-config.txt[]
 
 sequence.editor::

Documentation/git-reset.txt

@@ -95,7 +95,10 @@ OPTIONS
 
 -q::
 --quiet::
-	Be quiet, only report errors.
+--no-quiet::
+	Be quiet, only report errors. The default behavior is set by the
+	`reset.quiet` config option. `--quiet` and `--no-quiet` will
+	override the default behavior.
 
 
 EXAMPLES

builtin/reset.c

@@ -307,6 +307,7 @@ int cmd_reset(int argc, const char **argv, const char *prefix)
 	};
 
 	git_config(git_reset_config, NULL);
+	git_config_get_bool("reset.quiet", &quiet);
 
 	argc = parse_options(argc, argv, prefix, options, git_reset_usage,
 						PARSE_OPT_KEEP_DASHDASH);