Merge branch 'ta/config-set-2'

Update git_config() users with callback functions for a very narrow
scope with calls to config-set API that lets us query a single
variable.

* ta/config-set-2:
  builtin/apply.c: replace `git_config()` with `git_config_get_string_const()`
  merge-recursive.c: replace `git_config()` with `git_config_get_int()`
  ll-merge.c: refactor `read_merge_config()` to use `git_config_string()`
  fast-import.c: replace `git_config()` with `git_config_get_*()` family
  branch.c: replace `git_config()` with `git_config_get_string()
  alias.c: replace `git_config()` with `git_config_get_string()`
  imap-send.c: replace `git_config()` with `git_config_get_*()` family
  pager.c: replace `git_config()` with `git_config_get_value()`
  builtin/gc.c: replace `git_config()` with `git_config_get_*()` family
  rerere.c: replace `git_config()` with `git_config_get_*()` family
  fetchpack.c: replace `git_config()` with `git_config_get_*()` family
  archive.c: replace `git_config()` with `git_config_get_bool()` family
  read-cache.c: replace `git_config()` with `git_config_get_*()` family
  http-backend.c: replace `git_config()` with `git_config_get_bool()` family
  daemon.c: replace `git_config()` with `git_config_get_bool()` family

2 files changed, 25 insertions, 38 deletions

diff --git a/builtin/apply.c b/builtin/apply.c
index 6b7c764918..f204cca5d2 100644
--- a/builtin/apply.c
+++ b/builtin/apply.c
@@ -4274,13 +4274,11 @@ static int apply_patch(int fd, const char *filename, int options)
 	return 0;
 }
 
-static int git_apply_config(const char *var, const char *value, void *cb)
+static void git_apply_config(void)
 {
-	if (!strcmp(var, "apply.whitespace"))
-		return git_config_string(&apply_default_whitespace, var, value);
-	else if (!strcmp(var, "apply.ignorewhitespace"))
-		return git_config_string(&apply_default_ignorewhitespace, var, value);
-	return git_default_config(var, value, cb);
+	git_config_get_string_const("apply.whitespace", &apply_default_whitespace);
+	git_config_get_string_const("apply.ignorewhitespace", &apply_default_ignorewhitespace);
+	git_config(git_default_config, NULL);
 }
 
 static int option_parse_exclude(const struct option *opt,
@@ -4428,7 +4426,7 @@ int cmd_apply(int argc, const char **argv, const char *prefix_)
 
 	prefix = prefix_;
 	prefix_length = prefix ? strlen(prefix) : 0;
-	git_config(git_apply_config, NULL);
+	git_apply_config();
 	if (apply_default_whitespace)
 		parse_whitespace_option(apply_default_whitespace);
 	if (apply_default_ignorewhitespace)
diff --git a/builtin/gc.c b/builtin/gc.c
index 8d219d8c42..ced1456e1e 100644
--- a/builtin/gc.c
+++ b/builtin/gc.c
@@ -55,44 +55,33 @@ static void remove_pidfile_on_signal(int signo)
 	raise(signo);
 }
 
-static int gc_config(const char *var, const char *value, void *cb)
+static void gc_config(void)
 {
-	if (!strcmp(var, "gc.packrefs")) {
+	const char *value;
+
+	if (!git_config_get_value("gc.packrefs", &value)) {
 		if (value && !strcmp(value, "notbare"))
 			pack_refs = -1;
 		else
-			pack_refs = git_config_bool(var, value);
-		return 0;
-	}
-	if (!strcmp(var, "gc.aggressivewindow")) {
-		aggressive_window = git_config_int(var, value);
-		return 0;
-	}
-	if (!strcmp(var, "gc.aggressivedepth")) {
-		aggressive_depth = git_config_int(var, value);
-		return 0;
-	}
-	if (!strcmp(var, "gc.auto")) {
-		gc_auto_threshold = git_config_int(var, value);
-		return 0;
-	}
-	if (!strcmp(var, "gc.autopacklimit")) {
-		gc_auto_pack_limit = git_config_int(var, value);
-		return 0;
+			pack_refs = git_config_bool("gc.packrefs", value);
 	}
-	if (!strcmp(var, "gc.autodetach")) {
-		detach_auto = git_config_bool(var, value);
-		return 0;
-	}
-	if (!strcmp(var, "gc.pruneexpire")) {
-		if (value && strcmp(value, "now")) {
+
+	git_config_get_int("gc.aggressivewindow", &aggressive_window);
+	git_config_get_int("gc.aggressivedepth", &aggressive_depth);
+	git_config_get_int("gc.auto", &gc_auto_threshold);
+	git_config_get_int("gc.autopacklimit", &gc_auto_pack_limit);
+	git_config_get_bool("gc.autodetach", &detach_auto);
+
+	if (!git_config_get_string_const("gc.pruneexpire", &prune_expire)) {
+		if (strcmp(prune_expire, "now")) {
 			unsigned long now = approxidate("now");
-			if (approxidate(value) >= now)
-				return error(_("Invalid %s: '%s'"), var, value);
+			if (approxidate(prune_expire) >= now) {
+				git_die_config("gc.pruneexpire", _("Invalid gc.pruneexpire: '%s'"),
+						prune_expire);
+			}
 		}
-		return git_config_string(&prune_expire, var, value);
 	}
-	return git_default_config(var, value, cb);
+	git_config(git_default_config, NULL);
 }
 
 static int too_many_loose_objects(void)
@@ -301,7 +290,7 @@ int cmd_gc(int argc, const char **argv, const char *prefix)
 	argv_array_pushl(&prune, "prune", "--expire", NULL );
 	argv_array_pushl(&rerere, "rerere", "gc", NULL);
 
-	git_config(gc_config, NULL);
+	gc_config();
 
 	if (pack_refs < 0)
 		pack_refs = !is_bare_repository();