remote: use parse_config_key

95b567c7 ("use skip_prefix to avoid repeating strings") transformed
calls using starts_with() and then skipping the length of the prefix to
skip_prefix() calls.  In remote.c there are a few calls like:

  if (starts_with(foo, "bar"))
      foo += 3

These calls weren't touched by the aformentioned commit, but can be
replaced by calls to parse_config_key(), to simplify the code and
clarify the intentions.  Do that.
Helped-by: NJeff King <peff@peff.net>
Signed-off-by: NThomas Gummerer <t.gummerer@gmail.com>
Reviewed-by: NJeff King <peff@peff.net>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

remote.c

@@ -318,93 +318,88 @@ static void read_branches_file(struct remote *remote)
 static int handle_config(const char *key, const char *value, void *cb)
 {
 	const char *name;
+	int namelen;
 	const char *subkey;
 	struct remote *remote;
 	struct branch *branch;
-	if (starts_with(key, "branch.")) {
-		name = key + 7;
-		subkey = strrchr(name, '.');
-		if (!subkey)
+	if (parse_config_key(key, "branch", &name, &namelen, &subkey) >= 0) {
+		if (!name)
 			return 0;
-		branch = make_branch(name, subkey - name);
-		if (!strcmp(subkey, ".remote")) {
+		branch = make_branch(name, namelen);
+		if (!strcmp(subkey, "remote")) {
 			return git_config_string(&branch->remote_name, key, value);
-		} else if (!strcmp(subkey, ".pushremote")) {
+		} else if (!strcmp(subkey, "pushremote")) {
 			return git_config_string(&branch->pushremote_name, key, value);
-		} else if (!strcmp(subkey, ".merge")) {
+		} else if (!strcmp(subkey, "merge")) {
 			if (!value)
 				return config_error_nonbool(key);
 			add_merge(branch, xstrdup(value));
 		}
 		return 0;
 	}
-	if (starts_with(key, "url.")) {
+	if (parse_config_key(key, "url", &name, &namelen, &subkey) >= 0) {
 		struct rewrite *rewrite;
-		name = key + 4;
-		subkey = strrchr(name, '.');
-		if (!subkey)
+		if (!name)
 			return 0;
-		if (!strcmp(subkey, ".insteadof")) {
-			rewrite = make_rewrite(&rewrites, name, subkey - name);
+		if (!strcmp(subkey, "insteadof")) {
+			rewrite = make_rewrite(&rewrites, name, namelen);
 			if (!value)
 				return config_error_nonbool(key);
 			add_instead_of(rewrite, xstrdup(value));
-		} else if (!strcmp(subkey, ".pushinsteadof")) {
-			rewrite = make_rewrite(&rewrites_push, name, subkey - name);
+		} else if (!strcmp(subkey, "pushinsteadof")) {
+			rewrite = make_rewrite(&rewrites_push, name, namelen);
 			if (!value)
 				return config_error_nonbool(key);
 			add_instead_of(rewrite, xstrdup(value));
 		}
 	}
 
-	if (!starts_with(key,  "remote."))
+	if (parse_config_key(key, "remote", &name, &namelen, &subkey) < 0)
 		return 0;
-	name = key + 7;
 
 	/* Handle remote.* variables */
-	if (!strcmp(name, "pushdefault"))
+	if (!name && !strcmp(subkey, "pushdefault"))
 		return git_config_string(&pushremote_name, key, value);
 
+	if (!name)
+		return 0;
 	/* Handle remote.<name>.* variables */
 	if (*name == '/') {
 		warning("Config remote shorthand cannot begin with '/': %s",
 			name);
 		return 0;
 	}
-	subkey = strrchr(name, '.');
-	if (!subkey)
-		return 0;
-	remote = make_remote(name, subkey - name);
+	remote = make_remote(name, namelen);
 	remote->origin = REMOTE_CONFIG;
-	if (!strcmp(subkey, ".mirror"))
+	if (!strcmp(subkey, "mirror"))
 		remote->mirror = git_config_bool(key, value);
-	else if (!strcmp(subkey, ".skipdefaultupdate"))
+	else if (!strcmp(subkey, "skipdefaultupdate"))
 		remote->skip_default_update = git_config_bool(key, value);
-	else if (!strcmp(subkey, ".skipfetchall"))
+	else if (!strcmp(subkey, "skipfetchall"))
 		remote->skip_default_update = git_config_bool(key, value);
-	else if (!strcmp(subkey, ".prune"))
+	else if (!strcmp(subkey, "prune"))
 		remote->prune = git_config_bool(key, value);
-	else if (!strcmp(subkey, ".url")) {
+	else if (!strcmp(subkey, "url")) {
 		const char *v;
 		if (git_config_string(&v, key, value))
 			return -1;
 		add_url(remote, v);
-	} else if (!strcmp(subkey, ".pushurl")) {
+	} else if (!strcmp(subkey, "pushurl")) {
 		const char *v;
 		if (git_config_string(&v, key, value))
 			return -1;
 		add_pushurl(remote, v);
-	} else if (!strcmp(subkey, ".push")) {
+	} else if (!strcmp(subkey, "push")) {
 		const char *v;
 		if (git_config_string(&v, key, value))
 			return -1;
 		add_push_refspec(remote, v);
-	} else if (!strcmp(subkey, ".fetch")) {
+	} else if (!strcmp(subkey, "fetch")) {
 		const char *v;
 		if (git_config_string(&v, key, value))
 			return -1;
 		add_fetch_refspec(remote, v);
-	} else if (!strcmp(subkey, ".receivepack")) {
+	} else if (!strcmp(subkey, "receivepack")) {
 		const char *v;
 		if (git_config_string(&v, key, value))
 			return -1;
@@ -412,7 +407,7 @@ static int handle_config(const char *key, const char *value, void *cb)
 			remote->receivepack = v;
 		else
 			error("more than one receivepack given, using the first");
-	} else if (!strcmp(subkey, ".uploadpack")) {
+	} else if (!strcmp(subkey, "uploadpack")) {
 		const char *v;
 		if (git_config_string(&v, key, value))
 			return -1;
@@ -420,18 +415,18 @@ static int handle_config(const char *key, const char *value, void *cb)
 			remote->uploadpack = v;
 		else
 			error("more than one uploadpack given, using the first");
-	} else if (!strcmp(subkey, ".tagopt")) {
+	} else if (!strcmp(subkey, "tagopt")) {
 		if (!strcmp(value, "--no-tags"))
 			remote->fetch_tags = -1;
 		else if (!strcmp(value, "--tags"))
 			remote->fetch_tags = 2;
-	} else if (!strcmp(subkey, ".proxy")) {
+	} else if (!strcmp(subkey, "proxy")) {
 		return git_config_string((const char **)&remote->http_proxy,
 					 key, value);
-	} else if (!strcmp(subkey, ".proxyauthmethod")) {
+	} else if (!strcmp(subkey, "proxyauthmethod")) {
 		return git_config_string((const char **)&remote->http_proxy_authmethod,
 					 key, value);
-	} else if (!strcmp(subkey, ".vcs")) {
+	} else if (!strcmp(subkey, "vcs")) {
 		return git_config_string(&remote->foreign_vcs, key, value);
 	}
 	return 0;