Merge branch 'ob/gpg-interface-cleanup'

strbuf_split*() to split a string into multiple strbufs is often a
wrong API to use.  A few uses of it have been removed by
simplifying the code.

* ob/gpg-interface-cleanup:
  gpg-interface: do not use misdesigned strbuf_split*()
  gpg-interface: do not use misdesigned strbuf_split*()

Author: gitster

gpg-interface.c

@@ -821,8 +821,7 @@ static char *get_ssh_key_fingerprint(const char *signing_key)
 	struct child_process ssh_keygen = CHILD_PROCESS_INIT;
 	int ret = -1;
 	struct strbuf fingerprint_stdout = STRBUF_INIT;
-	struct strbuf **fingerprint;
-	char *fingerprint_ret;
+	char *fingerprint_ret, *begin, *delim;
 	const char *literal_key = NULL;
 
 	/*
@@ -845,13 +844,17 @@ static char *get_ssh_key_fingerprint(const char *signing_key)
 		die_errno(_("failed to get the ssh fingerprint for key '%s'"),
 			  signing_key);
 
-	fingerprint = strbuf_split_max(&fingerprint_stdout, ' ', 3);
-	if (!fingerprint[1])
-		die_errno(_("failed to get the ssh fingerprint for key '%s'"),
+	begin = fingerprint_stdout.buf;
+	delim = strchr(begin, ' ');
+	if (!delim)
+		die(_("failed to get the ssh fingerprint for key %s"),
 			  signing_key);
-
-	fingerprint_ret = strbuf_detach(fingerprint[1], NULL);
-	strbuf_list_free(fingerprint);
+	begin = delim + 1;
+	delim = strchr(begin, ' ');
+	if (!delim)
+	    die(_("failed to get the ssh fingerprint for key %s"),
+			  signing_key);
+	fingerprint_ret = xmemdupz(begin, delim - begin);
 	strbuf_release(&fingerprint_stdout);
 	return fingerprint_ret;
 }
@@ -862,12 +865,12 @@ static char *get_default_ssh_signing_key(void)
 	struct child_process ssh_default_key = CHILD_PROCESS_INIT;
 	int ret = -1;
 	struct strbuf key_stdout = STRBUF_INIT, key_stderr = STRBUF_INIT;
-	struct strbuf **keys;
 	char *key_command = NULL;
 	const char **argv;
 	int n;
 	char *default_key = NULL;
 	const char *literal_key = NULL;
+	char *begin, *new_line, *first_line;
 
 	if (!ssh_default_key_command)
 		die(_("either user.signingkey or gpg.ssh.defaultKeyCommand needs to be configured"));
@@ -884,19 +887,24 @@ static char *get_default_ssh_signing_key(void)
 			   &key_stderr, 0);
 
 	if (!ret) {
-		keys = strbuf_split_max(&key_stdout, '\n', 2);
-		if (keys[0] && is_literal_ssh_key(keys[0]->buf, &literal_key)) {
+		begin = key_stdout.buf;
+		new_line = strchr(begin, '\n');
+		if (new_line)
+			first_line = xmemdupz(begin, new_line - begin);
+		else
+			first_line = xstrdup(begin);
+		if (is_literal_ssh_key(first_line, &literal_key)) {
 			/*
 			 * We only use `is_literal_ssh_key` here to check validity
 			 * The prefix will be stripped when the key is used.
 			 */
-			default_key = strbuf_detach(keys[0], NULL);
+			default_key = first_line;
 		} else {
+			free(first_line);
 			warning(_("gpg.ssh.defaultKeyCommand succeeded but returned no keys: %s %s"),
 				key_stderr.buf, key_stdout.buf);
 		}
 
-		strbuf_list_free(keys);
 	} else {
 		warning(_("gpg.ssh.defaultKeyCommand failed: %s %s"),
 			key_stderr.buf, key_stdout.buf);