From b4c8aba659cb3264bcce3110d54bfcaab485408b Mon Sep 17 00:00:00 2001
From: Patrick Steinhardt <ps@pks.im>
Date: Tue, 16 Feb 2016 13:56:28 +0100
Subject: config: introduce set_or_die wrappers

A lot of call-sites for the existing family of `git_config_set`
functions do not check for errors that may occur, e.g. when the
configuration file is locked. In many cases we simply want to die
when such a situation arises.

Introduce wrappers that will cause the program to die in those
cases. These wrappers are temporary only to ease the transition
to let `git_config_set` die by default. They will be removed
later on when `git_config_set` itself has been replaced by
`git_config_set_gently`.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/cache.h b/cache.h
index 3efd7ac..59948b6 100644
--- a/cache.h
+++ b/cache.h
@@ -1523,11 +1523,15 @@ extern int git_config_maybe_bool(const char *, const char *);
 extern int git_config_string(const char **, const char *, const char *);
 extern int git_config_pathname(const char **, const char *, const char *);
 extern int git_config_set_in_file(const char *, const char *, const char *);
+extern void git_config_set_in_file_or_die(const char *, const char *, const char *);
 extern int git_config_set(const char *, const char *);
+extern void git_config_set_or_die(const char *, const char *);
 extern int git_config_parse_key(const char *, char **, int *);
 extern int git_config_key_is_valid(const char *key);
 extern int git_config_set_multivar(const char *, const char *, const char *, int);
+extern void git_config_set_multivar_or_die(const char *, const char *, const char *, int);
 extern int git_config_set_multivar_in_file(const char *, const char *, const char *, const char *, int);
+extern void git_config_set_multivar_in_file_or_die(const char *, const char *, const char *, const char *, int);
 extern int git_config_rename_section(const char *, const char *);
 extern int git_config_rename_section_in_file(const char *, const char *, const char *);
 extern const char *git_etc_gitconfig(void);
diff --git a/config.c b/config.c
index 86a5eb2..856f7d34 100644
--- a/config.c
+++ b/config.c
@@ -1831,11 +1831,22 @@ int git_config_set_in_file(const char *config_filename,
 	return git_config_set_multivar_in_file(config_filename, key, value, NULL, 0);
 }
 
+void git_config_set_in_file_or_die(const char *config_filename,
+			const char *key, const char *value)
+{
+	git_config_set_multivar_in_file_or_die(config_filename, key, value, NULL, 0);
+}
+
 int git_config_set(const char *key, const char *value)
 {
 	return git_config_set_multivar(key, value, NULL, 0);
 }
 
+void git_config_set_or_die(const char *key, const char *value)
+{
+	git_config_set_multivar_or_die(key, value, NULL, 0);
+}
+
 /*
  * Auxiliary function to sanity-check and split the key into the section
  * identifier and variable name.
@@ -2179,6 +2190,15 @@ write_err_out:
 
 }
 
+void git_config_set_multivar_in_file_or_die(const char *config_filename,
+				const char *key, const char *value,
+				const char *value_regex, int multi_replace)
+{
+	if (git_config_set_multivar_in_file(config_filename, key, value,
+					    value_regex, multi_replace) < 0)
+		die(_("Could not set '%s' to '%s'"), key, value);
+}
+
 int git_config_set_multivar(const char *key, const char *value,
 			const char *value_regex, int multi_replace)
 {
@@ -2186,6 +2206,13 @@ int git_config_set_multivar(const char *key, const char *value,
 					       multi_replace);
 }
 
+void git_config_set_multivar_or_die(const char *key, const char *value,
+			const char *value_regex, int multi_replace)
+{
+	git_config_set_multivar_in_file_or_die(NULL, key, value, value_regex,
+					       multi_replace);
+}
+
 static int section_name_match (const char *buf, const char *name)
 {
 	int i = 0, j = 0, dot = 0;
-- 
cgit v0.10.2-6-g49f6


From 27852b2c5347ecd815301e668e7415509f1dae07 Mon Sep 17 00:00:00 2001
From: Patrick Steinhardt <ps@pks.im>
Date: Mon, 22 Feb 2016 12:23:23 +0100
Subject: branch: report errors in tracking branch setup

When setting up a new tracking branch fails due to issues with
the configuration file we do not report any errors to the user
and pretend setting the tracking branch succeeded.

Setting up the tracking branch is handled by the
`install_branch_config` function. We do not want to simply die
there as the function is not only invoked when explicitly setting
upstream information with `git branch --set-upstream-to=`, but
also by `git push --set-upstream` and `git clone`. While it is
reasonable to die in the explict first case, we would lose
information in the latter two cases, so we only print the error
message but continue the program as usual.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/branch.c b/branch.c
index 7ff3f20..713ceda 100644
--- a/branch.c
+++ b/branch.c
@@ -49,7 +49,13 @@ static int should_setup_rebase(const char *origin)
 	return 0;
 }
 
-void install_branch_config(int flag, const char *local, const char *origin, const char *remote)
+static const char tracking_advice[] =
+N_("\n"
+"After fixing the error cause you may try to fix up\n"
+"the remote tracking information by invoking\n"
+"\"git branch --set-upstream-to=%s%s%s\".");
+
+int install_branch_config(int flag, const char *local, const char *origin, const char *remote)
 {
 	const char *shortname = NULL;
 	struct strbuf key = STRBUF_INIT;
@@ -60,20 +66,23 @@ void install_branch_config(int flag, const char *local, const char *origin, cons
 	    && !origin) {
 		warning(_("Not setting branch %s as its own upstream."),
 			local);
-		return;
+		return 0;
 	}
 
 	strbuf_addf(&key, "branch.%s.remote", local);
-	git_config_set(key.buf, origin ? origin : ".");
+	if (git_config_set(key.buf, origin ? origin : ".") < 0)
+		goto out_err;
 
 	strbuf_reset(&key);
 	strbuf_addf(&key, "branch.%s.merge", local);
-	git_config_set(key.buf, remote);
+	if (git_config_set(key.buf, remote) < 0)
+		goto out_err;
 
 	if (rebasing) {
 		strbuf_reset(&key);
 		strbuf_addf(&key, "branch.%s.rebase", local);
-		git_config_set(key.buf, "true");
+		if (git_config_set(key.buf, "true") < 0)
+			goto out_err;
 	}
 	strbuf_release(&key);
 
@@ -102,6 +111,19 @@ void install_branch_config(int flag, const char *local, const char *origin, cons
 					  local, remote);
 		}
 	}
+
+	return 0;
+
+out_err:
+	strbuf_release(&key);
+	error(_("Unable to write upstream branch configuration"));
+
+	advise(_(tracking_advice),
+	       origin ? origin : "",
+	       origin ? "/" : "",
+	       shortname ? shortname : remote);
+
+	return -1;
 }
 
 /*
@@ -109,8 +131,8 @@ void install_branch_config(int flag, const char *local, const char *origin, cons
  * to infer the settings for branch.<new_ref>.{remote,merge} from the
  * config.
  */
-static int setup_tracking(const char *new_ref, const char *orig_ref,
-			  enum branch_track track, int quiet)
+static void setup_tracking(const char *new_ref, const char *orig_ref,
+			   enum branch_track track, int quiet)
 {
 	struct tracking tracking;
 	int config_flags = quiet ? 0 : BRANCH_CONFIG_VERBOSE;
@@ -118,7 +140,7 @@ static int setup_tracking(const char *new_ref, const char *orig_ref,
 	memset(&tracking, 0, sizeof(tracking));
 	tracking.spec.dst = (char *)orig_ref;
 	if (for_each_remote(find_tracked_branch, &tracking))
-		return 1;
+		return;
 
 	if (!tracking.matches)
 		switch (track) {
@@ -127,18 +149,18 @@ static int setup_tracking(const char *new_ref, const char *orig_ref,
 		case BRANCH_TRACK_OVERRIDE:
 			break;
 		default:
-			return 1;
+			return;
 		}
 
 	if (tracking.matches > 1)
-		return error(_("Not tracking: ambiguous information for ref %s"),
-				orig_ref);
+		die(_("Not tracking: ambiguous information for ref %s"),
+		    orig_ref);
 
-	install_branch_config(config_flags, new_ref, tracking.remote,
-			      tracking.src ? tracking.src : orig_ref);
+	if (install_branch_config(config_flags, new_ref, tracking.remote,
+			      tracking.src ? tracking.src : orig_ref) < 0)
+		exit(-1);
 
 	free(tracking.src);
-	return 0;
 }
 
 int read_branch_desc(struct strbuf *buf, const char *branch_name)
diff --git a/branch.h b/branch.h
index 58aa45f..78ad438 100644
--- a/branch.h
+++ b/branch.h
@@ -43,9 +43,10 @@ void remove_branch_state(void);
 /*
  * Configure local branch "local" as downstream to branch "remote"
  * from remote "origin".  Used by git branch --set-upstream.
+ * Returns 0 on success.
  */
 #define BRANCH_CONFIG_VERBOSE 01
-extern void install_branch_config(int flag, const char *local, const char *origin, const char *remote);
+extern int install_branch_config(int flag, const char *local, const char *origin, const char *remote);
 
 /*
  * Read branch description
diff --git a/t/t3200-branch.sh b/t/t3200-branch.sh
index cdaf6f6..dd776b3 100755
--- a/t/t3200-branch.sh
+++ b/t/t3200-branch.sh
@@ -446,6 +446,13 @@ test_expect_success '--set-upstream-to fails on a non-ref' '
 	test_must_fail git branch --set-upstream-to HEAD^{}
 '
 
+test_expect_success '--set-upstream-to fails on locked config' '
+	test_when_finished "rm -f .git/config.lock" &&
+	>.git/config.lock &&
+	git branch locked &&
+	test_must_fail git branch --set-upstream-to locked
+'
+
 test_expect_success 'use --set-upstream-to modify HEAD' '
 	test_config branch.master.remote foo &&
 	test_config branch.master.merge foo &&
@@ -579,7 +586,7 @@ test_expect_success 'avoid ambiguous track' '
 	git config remote.ambi1.fetch refs/heads/lalala:refs/heads/master &&
 	git config remote.ambi2.url lilili &&
 	git config remote.ambi2.fetch refs/heads/lilili:refs/heads/master &&
-	git branch all1 master &&
+	test_must_fail git branch all1 master &&
 	test -z "$(git config branch.all1.merge)"
 '
 
-- 
cgit v0.10.2-6-g49f6


From b81842cbbba21a400c9c7a78c5b358565936254a Mon Sep 17 00:00:00 2001
From: Patrick Steinhardt <ps@pks.im>
Date: Mon, 22 Feb 2016 12:23:24 +0100
Subject: branch: die on config error when unsetting upstream

When we try to unset upstream configurations we do not check
return codes for the `git_config_set` functions. As those may
indicate that we were unable to unset the respective
configuration we may exit successfully without any error message
while in fact the upstream configuration was not unset.

Fix this by dying with an error message when we cannot unset the
configuration.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/builtin/branch.c b/builtin/branch.c
index 3f6c825..0978287 100644
--- a/builtin/branch.c
+++ b/builtin/branch.c
@@ -791,10 +791,10 @@ int cmd_branch(int argc, const char **argv, const char *prefix)
 			die(_("Branch '%s' has no upstream information"), branch->name);
 
 		strbuf_addf(&buf, "branch.%s.remote", branch->name);
-		git_config_set_multivar(buf.buf, NULL, NULL, 1);
+		git_config_set_multivar_or_die(buf.buf, NULL, NULL, 1);
 		strbuf_reset(&buf);
 		strbuf_addf(&buf, "branch.%s.merge", branch->name);
-		git_config_set_multivar(buf.buf, NULL, NULL, 1);
+		git_config_set_multivar_or_die(buf.buf, NULL, NULL, 1);
 		strbuf_release(&buf);
 	} else if (argc > 0 && argc <= 2) {
 		struct branch *branch = branch_get(argv[0]);
diff --git a/t/t3200-branch.sh b/t/t3200-branch.sh
index dd776b3..a897248 100755
--- a/t/t3200-branch.sh
+++ b/t/t3200-branch.sh
@@ -473,6 +473,13 @@ test_expect_success '--unset-upstream should fail if given a non-existent branch
 	test_must_fail git branch --unset-upstream i-dont-exist
 '
 
+test_expect_success '--unset-upstream should fail if config is locked' '
+	test_when_finished "rm -f .git/config.lock" &&
+	git branch --set-upstream-to locked &&
+	>.git/config.lock &&
+	test_must_fail git branch --unset-upstream
+'
+
 test_expect_success 'test --unset-upstream on HEAD' '
 	git branch my14 &&
 	test_config branch.master.remote foo &&
-- 
cgit v0.10.2-6-g49f6


From bd25f890146f7e39b18f67113f1bf2e4741a4fb4 Mon Sep 17 00:00:00 2001
From: Patrick Steinhardt <ps@pks.im>
Date: Mon, 22 Feb 2016 12:23:25 +0100
Subject: branch: die on config error when editing branch description

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/builtin/branch.c b/builtin/branch.c
index 0978287..c043cfc 100644
--- a/builtin/branch.c
+++ b/builtin/branch.c
@@ -570,7 +570,6 @@ static const char edit_description[] = "BRANCH_DESCRIPTION";
 
 static int edit_branch_description(const char *branch_name)
 {
-	int status;
 	struct strbuf buf = STRBUF_INIT;
 	struct strbuf name = STRBUF_INIT;
 
@@ -595,11 +594,11 @@ static int edit_branch_description(const char *branch_name)
 	strbuf_stripspace(&buf, 1);
 
 	strbuf_addf(&name, "branch.%s.description", branch_name);
-	status = git_config_set(name.buf, buf.len ? buf.buf : NULL);
+	git_config_set_or_die(name.buf, buf.len ? buf.buf : NULL);
 	strbuf_release(&name);
 	strbuf_release(&buf);
 
-	return status;
+	return 0;
 }
 
 int cmd_branch(int argc, const char **argv, const char *prefix)
-- 
cgit v0.10.2-6-g49f6


From 1a90dfe8a7e3fae31aa0b13b799bd3345e91e985 Mon Sep 17 00:00:00 2001
From: Patrick Steinhardt <ps@pks.im>
Date: Mon, 22 Feb 2016 12:23:26 +0100
Subject: submodule: die on config error when linking modules

When trying to connect a submodule with its corresponding
repository in '.git/modules' we try to set the core.worktree
setting in the submodule, which may fail due to an error
encountered in `git_config_set_in_file`.

The function is used in the git-mv command when trying to move a
submodule to another location. We already die when renaming a
file fails but do not pay attention to the case where updating
the connection between submodule and its repository fails. As
this leaves the repository in an inconsistent state, as well,
abort the program by dying early and presenting the failure to
the user.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/submodule.c b/submodule.c
index 14e7624..278b087 100644
--- a/submodule.c
+++ b/submodule.c
@@ -1034,11 +1034,9 @@ void connect_work_tree_and_git_dir(const char *work_tree, const char *git_dir)
 	/* Update core.worktree setting */
 	strbuf_reset(&file_name);
 	strbuf_addf(&file_name, "%s/config", git_dir);
-	if (git_config_set_in_file(file_name.buf, "core.worktree",
-				   relative_path(real_work_tree, git_dir,
-						 &rel_path)))
-		die(_("Could not set core.worktree in %s"),
-		    file_name.buf);
+	git_config_set_in_file_or_die(file_name.buf, "core.worktree",
+				      relative_path(real_work_tree, git_dir,
+						    &rel_path));
 
 	strbuf_release(&file_name);
 	strbuf_release(&rel_path);
-- 
cgit v0.10.2-6-g49f6


From 15b92fc05239a3c4f9af6177c1bfae1bcf2d5dce Mon Sep 17 00:00:00 2001
From: Patrick Steinhardt <ps@pks.im>
Date: Mon, 22 Feb 2016 12:23:27 +0100
Subject: submodule--helper: die on config error when cloning module

When setting the 'core.worktree' option for a newly cloned
submodule we ignore the return value of `git_config_set_in_file`.
As this leaves the submodule in an inconsistent state, we instead
want to inform the user that something has gone wrong by printing
an error and aborting the program.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/builtin/submodule--helper.c b/builtin/submodule--helper.c
index f4c3eff..c7e1ea2 100644
--- a/builtin/submodule--helper.c
+++ b/builtin/submodule--helper.c
@@ -245,8 +245,8 @@ static int module_clone(int argc, const char **argv, const char *prefix)
 	p = git_pathdup_submodule(path, "config");
 	if (!p)
 		die(_("could not get submodule directory for '%s'"), path);
-	git_config_set_in_file(p, "core.worktree",
-			       relative_path(sb.buf, sm_gitdir, &rel_path));
+	git_config_set_in_file_or_die(p, "core.worktree",
+				      relative_path(sb.buf, sm_gitdir, &rel_path));
 	strbuf_release(&sb);
 	strbuf_release(&rel_path);
 	free(sm_gitdir);
-- 
cgit v0.10.2-6-g49f6


From 45ebdcc99a8d8e7c671eb1db1212d90f5f2db341 Mon Sep 17 00:00:00 2001
From: Patrick Steinhardt <ps@pks.im>
Date: Mon, 22 Feb 2016 12:23:28 +0100
Subject: remote: die on config error when setting URL

When invoking `git-remote --set-url` we do not check the return
value when writing the actual new URL to the configuration file,
pretending to the user that the configuration has been set while
it was in fact not persisted.

Fix this problem by dying early when setting the config fails.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/builtin/remote.c b/builtin/remote.c
index 6694cf2..0771e42 100644
--- a/builtin/remote.c
+++ b/builtin/remote.c
@@ -1579,11 +1579,12 @@ static int set_url(int argc, const char **argv)
 	/* Special cases that add new entry. */
 	if ((!oldurl && !delete_mode) || add_mode) {
 		if (add_mode)
-			git_config_set_multivar(name_buf.buf, newurl,
-				"^$", 0);
+			git_config_set_multivar_or_die(name_buf.buf, newurl,
+						       "^$", 0);
 		else
-			git_config_set(name_buf.buf, newurl);
+			git_config_set_or_die(name_buf.buf, newurl);
 		strbuf_release(&name_buf);
+
 		return 0;
 	}
 
@@ -1604,9 +1605,9 @@ static int set_url(int argc, const char **argv)
 	regfree(&old_regex);
 
 	if (!delete_mode)
-		git_config_set_multivar(name_buf.buf, newurl, oldurl, 0);
+		git_config_set_multivar_or_die(name_buf.buf, newurl, oldurl, 0);
 	else
-		git_config_set_multivar(name_buf.buf, NULL, oldurl, 1);
+		git_config_set_multivar_or_die(name_buf.buf, NULL, oldurl, 1);
 	return 0;
 }
 
diff --git a/t/t5505-remote.sh b/t/t5505-remote.sh
index dfaf9d9..013e03d 100755
--- a/t/t5505-remote.sh
+++ b/t/t5505-remote.sh
@@ -932,6 +932,15 @@ test_expect_success 'get-url on new remote' '
 	echo foo | get_url_test --push --all someremote
 '
 
+test_expect_success 'remote set-url with locked config' '
+	test_when_finished "rm -f .git/config.lock" &&
+	git config --get-all remote.someremote.url >expect &&
+	>.git/config.lock &&
+	test_must_fail git remote set-url someremote baz &&
+	git config --get-all remote.someremote.url >actual &&
+	cmp expect actual
+'
+
 test_expect_success 'remote set-url bar' '
 	git remote set-url someremote bar &&
 	echo bar >expect &&
-- 
cgit v0.10.2-6-g49f6


From ab5e4b67e14cbd09e74d3b19c0553a3716205c45 Mon Sep 17 00:00:00 2001
From: Patrick Steinhardt <ps@pks.im>
Date: Mon, 22 Feb 2016 12:23:29 +0100
Subject: remote: die on config error when setting/adding branches

When we add or set new branches (e.g. by `git remote add -f` or
`git remote set-branches`) we do not check for error codes when
writing the branches to the configuration file. When persisting
the configuration failed we are left with a remote that has none
or not all of the branches that should have been set without
notifying the user.

Fix this issue by dying early on configuration error.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/builtin/remote.c b/builtin/remote.c
index 0771e42..6a7244e 100644
--- a/builtin/remote.c
+++ b/builtin/remote.c
@@ -108,8 +108,8 @@ enum {
 #define MIRROR_PUSH 2
 #define MIRROR_BOTH (MIRROR_FETCH|MIRROR_PUSH)
 
-static int add_branch(const char *key, const char *branchname,
-		const char *remotename, int mirror, struct strbuf *tmp)
+static void add_branch(const char *key, const char *branchname,
+		       const char *remotename, int mirror, struct strbuf *tmp)
 {
 	strbuf_reset(tmp);
 	strbuf_addch(tmp, '+');
@@ -119,7 +119,7 @@ static int add_branch(const char *key, const char *branchname,
 	else
 		strbuf_addf(tmp, "refs/heads/%s:refs/remotes/%s/%s",
 				branchname, remotename, branchname);
-	return git_config_set_multivar(key, tmp->buf, "^$", 0);
+	git_config_set_multivar_or_die(key, tmp->buf, "^$", 0);
 }
 
 static const char mirror_advice[] =
@@ -206,9 +206,8 @@ static int add(int argc, const char **argv)
 		if (track.nr == 0)
 			string_list_append(&track, "*");
 		for (i = 0; i < track.nr; i++) {
-			if (add_branch(buf.buf, track.items[i].string,
-				       name, mirror, &buf2))
-				return 1;
+			add_branch(buf.buf, track.items[i].string,
+				   name, mirror, &buf2);
 		}
 	}
 
@@ -1412,21 +1411,17 @@ static int remove_all_fetch_refspecs(const char *remote, const char *key)
 	return git_config_set_multivar(key, NULL, NULL, 1);
 }
 
-static int add_branches(struct remote *remote, const char **branches,
-			const char *key)
+static void add_branches(struct remote *remote, const char **branches,
+			 const char *key)
 {
 	const char *remotename = remote->name;
 	int mirror = remote->mirror;
 	struct strbuf refspec = STRBUF_INIT;
 
 	for (; *branches; branches++)
-		if (add_branch(key, *branches, remotename, mirror, &refspec)) {
-			strbuf_release(&refspec);
-			return 1;
-		}
+		add_branch(key, *branches, remotename, mirror, &refspec);
 
 	strbuf_release(&refspec);
-	return 0;
 }
 
 static int set_remote_branches(const char *remotename, const char **branches,
@@ -1445,10 +1440,7 @@ static int set_remote_branches(const char *remotename, const char **branches,
 		strbuf_release(&key);
 		return 1;
 	}
-	if (add_branches(remote, branches, key.buf)) {
-		strbuf_release(&key);
-		return 1;
-	}
+	add_branches(remote, branches, key.buf);
 
 	strbuf_release(&key);
 	return 0;
-- 
cgit v0.10.2-6-g49f6


From c397debf3d046713ffd040f2c7da5e6921121ce8 Mon Sep 17 00:00:00 2001
From: Patrick Steinhardt <ps@pks.im>
Date: Mon, 22 Feb 2016 12:23:30 +0100
Subject: remote: die on config error when manipulating remotes

When manipulating remotes we try to set various configuration
values without checking if the values were persisted correctly,
possibly leaving the remote in an inconsistent state.

Fix this issue by dying early and notifying the user about the
error.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/builtin/remote.c b/builtin/remote.c
index 6a7244e..dee6551 100644
--- a/builtin/remote.c
+++ b/builtin/remote.c
@@ -197,8 +197,7 @@ static int add(int argc, const char **argv)
 		die(_("'%s' is not a valid remote name"), name);
 
 	strbuf_addf(&buf, "remote.%s.url", name);
-	if (git_config_set(buf.buf, url))
-		return 1;
+	git_config_set_or_die(buf.buf, url);
 
 	if (!mirror || mirror & MIRROR_FETCH) {
 		strbuf_reset(&buf);
@@ -214,16 +213,14 @@ static int add(int argc, const char **argv)
 	if (mirror & MIRROR_PUSH) {
 		strbuf_reset(&buf);
 		strbuf_addf(&buf, "remote.%s.mirror", name);
-		if (git_config_set(buf.buf, "true"))
-			return 1;
+		git_config_set_or_die(buf.buf, "true");
 	}
 
 	if (fetch_tags != TAGS_DEFAULT) {
 		strbuf_reset(&buf);
 		strbuf_addf(&buf, "remote.%s.tagopt", name);
-		if (git_config_set(buf.buf,
-			fetch_tags == TAGS_SET ? "--tags" : "--no-tags"))
-			return 1;
+		git_config_set_or_die(buf.buf,
+				      fetch_tags == TAGS_SET ? "--tags" : "--no-tags");
 	}
 
 	if (fetch && fetch_remote(name))
@@ -589,25 +586,20 @@ static int migrate_file(struct remote *remote)
 
 	strbuf_addf(&buf, "remote.%s.url", remote->name);
 	for (i = 0; i < remote->url_nr; i++)
-		if (git_config_set_multivar(buf.buf, remote->url[i], "^$", 0))
-			return error(_("Could not append '%s' to '%s'"),
-					remote->url[i], buf.buf);
+		git_config_set_multivar_or_die(buf.buf, remote->url[i], "^$", 0);
 	strbuf_reset(&buf);
 	strbuf_addf(&buf, "remote.%s.push", remote->name);
 	for (i = 0; i < remote->push_refspec_nr; i++)
-		if (git_config_set_multivar(buf.buf, remote->push_refspec[i], "^$", 0))
-			return error(_("Could not append '%s' to '%s'"),
-					remote->push_refspec[i], buf.buf);
+		git_config_set_multivar_or_die(buf.buf, remote->push_refspec[i], "^$", 0);
 	strbuf_reset(&buf);
 	strbuf_addf(&buf, "remote.%s.fetch", remote->name);
 	for (i = 0; i < remote->fetch_refspec_nr; i++)
-		if (git_config_set_multivar(buf.buf, remote->fetch_refspec[i], "^$", 0))
-			return error(_("Could not append '%s' to '%s'"),
-					remote->fetch_refspec[i], buf.buf);
+		git_config_set_multivar_or_die(buf.buf, remote->fetch_refspec[i], "^$", 0);
 	if (remote->origin == REMOTE_REMOTES)
 		unlink_or_warn(git_path("remotes/%s", remote->name));
 	else if (remote->origin == REMOTE_BRANCHES)
 		unlink_or_warn(git_path("branches/%s", remote->name));
+
 	return 0;
 }
 
@@ -654,8 +646,7 @@ static int mv(int argc, const char **argv)
 
 	strbuf_reset(&buf);
 	strbuf_addf(&buf, "remote.%s.fetch", rename.new);
-	if (git_config_set_multivar(buf.buf, NULL, NULL, 1))
-		return error(_("Could not remove config section '%s'"), buf.buf);
+	git_config_set_multivar_or_die(buf.buf, NULL, NULL, 1);
 	strbuf_addf(&old_remote_context, ":refs/remotes/%s/", rename.old);
 	for (i = 0; i < oldremote->fetch_refspec_nr; i++) {
 		char *ptr;
@@ -675,8 +666,7 @@ static int mv(int argc, const char **argv)
 				  "\tPlease update the configuration manually if necessary."),
 				buf2.buf);
 
-		if (git_config_set_multivar(buf.buf, buf2.buf, "^$", 0))
-			return error(_("Could not append '%s'"), buf.buf);
+		git_config_set_multivar_or_die(buf.buf, buf2.buf, "^$", 0);
 	}
 
 	read_branches();
@@ -686,9 +676,7 @@ static int mv(int argc, const char **argv)
 		if (info->remote_name && !strcmp(info->remote_name, rename.old)) {
 			strbuf_reset(&buf);
 			strbuf_addf(&buf, "branch.%s.remote", item->string);
-			if (git_config_set(buf.buf, rename.new)) {
-				return error(_("Could not set '%s'"), buf.buf);
-			}
+			git_config_set_or_die(buf.buf, rename.new);
 		}
 	}
 
@@ -786,10 +774,7 @@ static int rm(int argc, const char **argv)
 				strbuf_reset(&buf);
 				strbuf_addf(&buf, "branch.%s.%s",
 						item->string, *k);
-				if (git_config_set(buf.buf, NULL)) {
-					strbuf_release(&buf);
-					return -1;
-				}
+				git_config_set_or_die(buf.buf, NULL);
 			}
 		}
 	}
-- 
cgit v0.10.2-6-g49f6


From 2ee35c428e0685b4fc3bc2e828326b6fcefb78c0 Mon Sep 17 00:00:00 2001
From: Patrick Steinhardt <ps@pks.im>
Date: Mon, 22 Feb 2016 12:23:31 +0100
Subject: clone: die on config error in cmd_clone

The clone command does not check for error codes returned by
`git_config_set` functions. This may cause the user to end up
with an inconsistent repository without any indication with what
went wrong.

Fix this problem by dying with an error message when we are
unable to write the configuration files to disk.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/builtin/clone.c b/builtin/clone.c
index a0b3cd9..2dabce9 100644
--- a/builtin/clone.c
+++ b/builtin/clone.c
@@ -783,12 +783,12 @@ static void write_refspec_config(const char *src_ref_prefix,
 		/* Configure the remote */
 		if (value.len) {
 			strbuf_addf(&key, "remote.%s.fetch", option_origin);
-			git_config_set_multivar(key.buf, value.buf, "^$", 0);
+			git_config_set_multivar_or_die(key.buf, value.buf, "^$", 0);
 			strbuf_reset(&key);
 
 			if (option_mirror) {
 				strbuf_addf(&key, "remote.%s.mirror", option_origin);
-				git_config_set(key.buf, "true");
+				git_config_set_or_die(key.buf, "true");
 				strbuf_reset(&key);
 			}
 		}
@@ -946,14 +946,14 @@ int cmd_clone(int argc, const char **argv, const char *prefix)
 			src_ref_prefix = "refs/";
 		strbuf_addstr(&branch_top, src_ref_prefix);
 
-		git_config_set("core.bare", "true");
+		git_config_set_or_die("core.bare", "true");
 	} else {
 		strbuf_addf(&branch_top, "refs/remotes/%s/", option_origin);
 	}
 
 	strbuf_addf(&value, "+%s*:%s*", src_ref_prefix, branch_top.buf);
 	strbuf_addf(&key, "remote.%s.url", option_origin);
-	git_config_set(key.buf, repo);
+	git_config_set_or_die(key.buf, repo);
 	strbuf_reset(&key);
 
 	if (option_reference.nr)
-- 
cgit v0.10.2-6-g49f6


From 695009bc09a667899d06cda44956fea00ab153ab Mon Sep 17 00:00:00 2001
From: Patrick Steinhardt <ps@pks.im>
Date: Mon, 22 Feb 2016 12:23:32 +0100
Subject: init-db: die on config errors when initializing empty repo

When creating an empty repository with `git init-db` we do not
check for error codes returned by `git_config_set` functions.
This may cause the user to end up with an inconsistent repository
without any indication for the user.

Fix this problem by dying early with an error message when we are
unable to write the configuration files to disk.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/builtin/init-db.c b/builtin/init-db.c
index 07229d6..ef19048 100644
--- a/builtin/init-db.c
+++ b/builtin/init-db.c
@@ -227,7 +227,7 @@ static int create_default_files(const char *template_path)
 	/* This forces creation of new config file */
 	xsnprintf(repo_version_string, sizeof(repo_version_string),
 		  "%d", GIT_REPO_VERSION);
-	git_config_set("core.repositoryformatversion", repo_version_string);
+	git_config_set_or_die("core.repositoryformatversion", repo_version_string);
 
 	/* Check filemode trustability */
 	path = git_path_buf(&buf, "config");
@@ -241,18 +241,18 @@ static int create_default_files(const char *template_path)
 		if (filemode && !reinit && (st1.st_mode & S_IXUSR))
 			filemode = 0;
 	}
-	git_config_set("core.filemode", filemode ? "true" : "false");
+	git_config_set_or_die("core.filemode", filemode ? "true" : "false");
 
 	if (is_bare_repository())
-		git_config_set("core.bare", "true");
+		git_config_set_or_die("core.bare", "true");
 	else {
 		const char *work_tree = get_git_work_tree();
-		git_config_set("core.bare", "false");
+		git_config_set_or_die("core.bare", "false");
 		/* allow template config file to override the default */
 		if (log_all_ref_updates == -1)
-		    git_config_set("core.logallrefupdates", "true");
+			git_config_set_or_die("core.logallrefupdates", "true");
 		if (needs_work_tree_config(get_git_dir(), work_tree))
-			git_config_set("core.worktree", work_tree);
+			git_config_set_or_die("core.worktree", work_tree);
 	}
 
 	if (!reinit) {
@@ -265,12 +265,12 @@ static int create_default_files(const char *template_path)
 		    S_ISLNK(st1.st_mode))
 			unlink(path); /* good */
 		else
-			git_config_set("core.symlinks", "false");
+			git_config_set_or_die("core.symlinks", "false");
 
 		/* Check if the filesystem is case-insensitive */
 		path = git_path_buf(&buf, "CoNfIg");
 		if (!access(path, F_OK))
-			git_config_set("core.ignorecase", "true");
+			git_config_set_or_die("core.ignorecase", "true");
 		probe_utf8_pathname_composition();
 	}
 
@@ -386,8 +386,8 @@ int init_db(const char *template_dir, unsigned int flags)
 			xsnprintf(buf, sizeof(buf), "%d", OLD_PERM_EVERYBODY);
 		else
 			die("BUG: invalid value for shared_repository");
-		git_config_set("core.sharedrepository", buf);
-		git_config_set("receive.denyNonFastforwards", "true");
+		git_config_set_or_die("core.sharedrepository", buf);
+		git_config_set_or_die("receive.denyNonFastforwards", "true");
 	}
 
 	if (!(flags & INIT_DB_QUIET)) {
-- 
cgit v0.10.2-6-g49f6


From 6c24dfb67e570407a87fb4ea4bf1c64ad89d5d88 Mon Sep 17 00:00:00 2001
From: Patrick Steinhardt <ps@pks.im>
Date: Mon, 22 Feb 2016 12:23:33 +0100
Subject: sequencer: die on config error when saving replay opts

When we start picking a range of revisions we save the replay
options that are required to restore state when interrupting and
later continuing picking the revisions. However, we do not check
the return values of the `git_config_set` functions, which may
lead us to store incomplete information. As this may lead us to
fail when trying to continue the sequence the error can be fatal.

Fix this by dying immediately when we are unable to write back
any replay option.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/sequencer.c b/sequencer.c
index 8c58fa2..3c109b6 100644
--- a/sequencer.c
+++ b/sequencer.c
@@ -933,31 +933,31 @@ static void save_opts(struct replay_opts *opts)
 	const char *opts_file = git_path_opts_file();
 
 	if (opts->no_commit)
-		git_config_set_in_file(opts_file, "options.no-commit", "true");
+		git_config_set_in_file_or_die(opts_file, "options.no-commit", "true");
 	if (opts->edit)
-		git_config_set_in_file(opts_file, "options.edit", "true");
+		git_config_set_in_file_or_die(opts_file, "options.edit", "true");
 	if (opts->signoff)
-		git_config_set_in_file(opts_file, "options.signoff", "true");
+		git_config_set_in_file_or_die(opts_file, "options.signoff", "true");
 	if (opts->record_origin)
-		git_config_set_in_file(opts_file, "options.record-origin", "true");
+		git_config_set_in_file_or_die(opts_file, "options.record-origin", "true");
 	if (opts->allow_ff)
-		git_config_set_in_file(opts_file, "options.allow-ff", "true");
+		git_config_set_in_file_or_die(opts_file, "options.allow-ff", "true");
 	if (opts->mainline) {
 		struct strbuf buf = STRBUF_INIT;
 		strbuf_addf(&buf, "%d", opts->mainline);
-		git_config_set_in_file(opts_file, "options.mainline", buf.buf);
+		git_config_set_in_file_or_die(opts_file, "options.mainline", buf.buf);
 		strbuf_release(&buf);
 	}
 	if (opts->strategy)
-		git_config_set_in_file(opts_file, "options.strategy", opts->strategy);
+		git_config_set_in_file_or_die(opts_file, "options.strategy", opts->strategy);
 	if (opts->gpg_sign)
-		git_config_set_in_file(opts_file, "options.gpg-sign", opts->gpg_sign);
+		git_config_set_in_file_or_die(opts_file, "options.gpg-sign", opts->gpg_sign);
 	if (opts->xopts) {
 		int i;
 		for (i = 0; i < opts->xopts_nr; i++)
-			git_config_set_multivar_in_file(opts_file,
-							"options.strategy-option",
-							opts->xopts[i], "^$", 0);
+			git_config_set_multivar_in_file_or_die(opts_file,
+							       "options.strategy-option",
+							       opts->xopts[i], "^$", 0);
 	}
 }
 
-- 
cgit v0.10.2-6-g49f6


From 2f29c1bf34ec12c24072bb54a2c009bd1f17a2ee Mon Sep 17 00:00:00 2001
From: Patrick Steinhardt <ps@pks.im>
Date: Mon, 22 Feb 2016 12:23:34 +0100
Subject: compat: die when unable to set core.precomposeunicode

When calling `git_config_set` to set 'core.precomposeunicode' we
ignore the return value of the function, which may indicate that
we were unable to write the value back to disk. As the function
is only called by init-db we can and should die when an error
occurs.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/compat/precompose_utf8.c b/compat/precompose_utf8.c
index 079070f..9ff1ebe 100644
--- a/compat/precompose_utf8.c
+++ b/compat/precompose_utf8.c
@@ -50,7 +50,8 @@ void probe_utf8_pathname_composition(void)
 		close(output_fd);
 		git_path_buf(&path, "%s", auml_nfd);
 		precomposed_unicode = access(path.buf, R_OK) ? 0 : 1;
-		git_config_set("core.precomposeunicode", precomposed_unicode ? "true" : "false");
+		git_config_set_or_die("core.precomposeunicode",
+				      precomposed_unicode ? "true" : "false");
 		git_path_buf(&path, "%s", auml_nfc);
 		if (unlink(path.buf))
 			die_errno(_("failed to unlink '%s'"), path.buf);
-- 
cgit v0.10.2-6-g49f6


From 30598ad06f2adfef1f74d6348677358865cbf373 Mon Sep 17 00:00:00 2001
From: Patrick Steinhardt <ps@pks.im>
Date: Mon, 22 Feb 2016 12:23:35 +0100
Subject: config: rename git_config_set to git_config_set_gently

The desired default behavior for `git_config_set` is to die
whenever an error occurs. Dying is the default for a lot of
internal functions when failures occur and is in this case the
right thing to do for most callers as otherwise we might run into
inconsistent repositories without noticing.

As some code may rely on the actual return values for
`git_config_set` we still require the ability to invoke these
functions without aborting. Rename the existing `git_config_set`
functions to `git_config_set_gently` to keep them available for
those callers.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/branch.c b/branch.c
index 713ceda..c50ea42 100644
--- a/branch.c
+++ b/branch.c
@@ -70,18 +70,18 @@ int install_branch_config(int flag, const char *local, const char *origin, const
 	}
 
 	strbuf_addf(&key, "branch.%s.remote", local);
-	if (git_config_set(key.buf, origin ? origin : ".") < 0)
+	if (git_config_set_gently(key.buf, origin ? origin : ".") < 0)
 		goto out_err;
 
 	strbuf_reset(&key);
 	strbuf_addf(&key, "branch.%s.merge", local);
-	if (git_config_set(key.buf, remote) < 0)
+	if (git_config_set_gently(key.buf, remote) < 0)
 		goto out_err;
 
 	if (rebasing) {
 		strbuf_reset(&key);
 		strbuf_addf(&key, "branch.%s.rebase", local);
-		if (git_config_set(key.buf, "true") < 0)
+		if (git_config_set_gently(key.buf, "true") < 0)
 			goto out_err;
 	}
 	strbuf_release(&key);
diff --git a/builtin/clone.c b/builtin/clone.c
index 2dabce9..a46d3d0 100644
--- a/builtin/clone.c
+++ b/builtin/clone.c
@@ -732,7 +732,7 @@ static int checkout(void)
 
 static int write_one_config(const char *key, const char *value, void *data)
 {
-	return git_config_set_multivar(key, value ? value : "true", "^$", 0);
+	return git_config_set_multivar_gently(key, value ? value : "true", "^$", 0);
 }
 
 static void write_config(struct string_list *config)
diff --git a/builtin/config.c b/builtin/config.c
index adc7727..c26d6e7 100644
--- a/builtin/config.c
+++ b/builtin/config.c
@@ -582,7 +582,7 @@ int cmd_config(int argc, const char **argv, const char *prefix)
 		check_write();
 		check_argc(argc, 2, 2);
 		value = normalize_value(argv[0], argv[1]);
-		ret = git_config_set_in_file(given_config_source.file, argv[0], value);
+		ret = git_config_set_in_file_gently(given_config_source.file, argv[0], value);
 		if (ret == CONFIG_NOTHING_SET)
 			error("cannot overwrite multiple values with a single value\n"
 			"       Use a regexp, --add or --replace-all to change %s.", argv[0]);
@@ -592,23 +592,23 @@ int cmd_config(int argc, const char **argv, const char *prefix)
 		check_write();
 		check_argc(argc, 2, 3);
 		value = normalize_value(argv[0], argv[1]);
-		return git_config_set_multivar_in_file(given_config_source.file,
-						       argv[0], value, argv[2], 0);
+		return git_config_set_multivar_in_file_gently(given_config_source.file,
+							      argv[0], value, argv[2], 0);
 	}
 	else if (actions == ACTION_ADD) {
 		check_write();
 		check_argc(argc, 2, 2);
 		value = normalize_value(argv[0], argv[1]);
-		return git_config_set_multivar_in_file(given_config_source.file,
-						       argv[0], value,
-						       CONFIG_REGEX_NONE, 0);
+		return git_config_set_multivar_in_file_gently(given_config_source.file,
+							      argv[0], value,
+							      CONFIG_REGEX_NONE, 0);
 	}
 	else if (actions == ACTION_REPLACE_ALL) {
 		check_write();
 		check_argc(argc, 2, 3);
 		value = normalize_value(argv[0], argv[1]);
-		return git_config_set_multivar_in_file(given_config_source.file,
-						       argv[0], value, argv[2], 1);
+		return git_config_set_multivar_in_file_gently(given_config_source.file,
+							      argv[0], value, argv[2], 1);
 	}
 	else if (actions == ACTION_GET) {
 		check_argc(argc, 1, 2);
@@ -634,17 +634,17 @@ int cmd_config(int argc, const char **argv, const char *prefix)
 		check_write();
 		check_argc(argc, 1, 2);
 		if (argc == 2)
-			return git_config_set_multivar_in_file(given_config_source.file,
-							       argv[0], NULL, argv[1], 0);
+			return git_config_set_multivar_in_file_gently(given_config_source.file,
+								      argv[0], NULL, argv[1], 0);
 		else
-			return git_config_set_in_file(given_config_source.file,
-						      argv[0], NULL);
+			return git_config_set_in_file_gently(given_config_source.file,
+							     argv[0], NULL);
 	}
 	else if (actions == ACTION_UNSET_ALL) {
 		check_write();
 		check_argc(argc, 1, 2);
-		return git_config_set_multivar_in_file(given_config_source.file,
-						       argv[0], NULL, argv[1], 1);
+		return git_config_set_multivar_in_file_gently(given_config_source.file,
+							      argv[0], NULL, argv[1], 1);
 	}
 	else if (actions == ACTION_RENAME_SECTION) {
 		int ret;
diff --git a/builtin/remote.c b/builtin/remote.c
index dee6551..6cacbca 100644
--- a/builtin/remote.c
+++ b/builtin/remote.c
@@ -1393,7 +1393,7 @@ static int update(int argc, const char **argv)
 
 static int remove_all_fetch_refspecs(const char *remote, const char *key)
 {
-	return git_config_set_multivar(key, NULL, NULL, 1);
+	return git_config_set_multivar_gently(key, NULL, NULL, 1);
 }
 
 static void add_branches(struct remote *remote, const char **branches,
diff --git a/cache.h b/cache.h
index 59948b6..08046ba 100644
--- a/cache.h
+++ b/cache.h
@@ -1484,7 +1484,7 @@ extern int update_server_info(int);
 /* git_config_parse_key() returns these negated: */
 #define CONFIG_INVALID_KEY 1
 #define CONFIG_NO_SECTION_OR_NAME 2
-/* git_config_set(), git_config_set_multivar() return the above or these: */
+/* git_config_set_gently(), git_config_set_multivar_gently() return the above or these: */
 #define CONFIG_NO_LOCK -1
 #define CONFIG_INVALID_FILE 3
 #define CONFIG_NO_WRITE 4
@@ -1522,15 +1522,15 @@ extern int git_config_bool(const char *, const char *);
 extern int git_config_maybe_bool(const char *, const char *);
 extern int git_config_string(const char **, const char *, const char *);
 extern int git_config_pathname(const char **, const char *, const char *);
-extern int git_config_set_in_file(const char *, const char *, const char *);
+extern int git_config_set_in_file_gently(const char *, const char *, const char *);
 extern void git_config_set_in_file_or_die(const char *, const char *, const char *);
-extern int git_config_set(const char *, const char *);
+extern int git_config_set_gently(const char *, const char *);
 extern void git_config_set_or_die(const char *, const char *);
 extern int git_config_parse_key(const char *, char **, int *);
 extern int git_config_key_is_valid(const char *key);
-extern int git_config_set_multivar(const char *, const char *, const char *, int);
+extern int git_config_set_multivar_gently(const char *, const char *, const char *, int);
 extern void git_config_set_multivar_or_die(const char *, const char *, const char *, int);
-extern int git_config_set_multivar_in_file(const char *, const char *, const char *, const char *, int);
+extern int git_config_set_multivar_in_file_gently(const char *, const char *, const char *, const char *, int);
 extern void git_config_set_multivar_in_file_or_die(const char *, const char *, const char *, const char *, int);
 extern int git_config_rename_section(const char *, const char *);
 extern int git_config_rename_section_in_file(const char *, const char *, const char *);
diff --git a/config.c b/config.c
index 856f7d34..e7f42da 100644
--- a/config.c
+++ b/config.c
@@ -1825,10 +1825,10 @@ contline:
 	return offset;
 }
 
-int git_config_set_in_file(const char *config_filename,
-			const char *key, const char *value)
+int git_config_set_in_file_gently(const char *config_filename,
+				  const char *key, const char *value)
 {
-	return git_config_set_multivar_in_file(config_filename, key, value, NULL, 0);
+	return git_config_set_multivar_in_file_gently(config_filename, key, value, NULL, 0);
 }
 
 void git_config_set_in_file_or_die(const char *config_filename,
@@ -1837,9 +1837,9 @@ void git_config_set_in_file_or_die(const char *config_filename,
 	git_config_set_multivar_in_file_or_die(config_filename, key, value, NULL, 0);
 }
 
-int git_config_set(const char *key, const char *value)
+int git_config_set_gently(const char *key, const char *value)
 {
-	return git_config_set_multivar(key, value, NULL, 0);
+	return git_config_set_multivar_gently(key, value, NULL, 0);
 }
 
 void git_config_set_or_die(const char *key, const char *value)
@@ -1961,9 +1961,10 @@ int git_config_key_is_valid(const char *key)
  * - the config file is removed and the lock file rename()d to it.
  *
  */
-int git_config_set_multivar_in_file(const char *config_filename,
-				const char *key, const char *value,
-				const char *value_regex, int multi_replace)
+int git_config_set_multivar_in_file_gently(const char *config_filename,
+					   const char *key, const char *value,
+					   const char *value_regex,
+					   int multi_replace)
 {
 	int fd = -1, in_fd = -1;
 	int ret;
@@ -2194,16 +2195,16 @@ void git_config_set_multivar_in_file_or_die(const char *config_filename,
 				const char *key, const char *value,
 				const char *value_regex, int multi_replace)
 {
-	if (git_config_set_multivar_in_file(config_filename, key, value,
-					    value_regex, multi_replace) < 0)
+	if (git_config_set_multivar_in_file_gently(config_filename, key, value,
+						   value_regex, multi_replace) < 0)
 		die(_("Could not set '%s' to '%s'"), key, value);
 }
 
-int git_config_set_multivar(const char *key, const char *value,
-			const char *value_regex, int multi_replace)
+int git_config_set_multivar_gently(const char *key, const char *value,
+				   const char *value_regex, int multi_replace)
 {
-	return git_config_set_multivar_in_file(NULL, key, value, value_regex,
-					       multi_replace);
+	return git_config_set_multivar_in_file_gently(NULL, key, value, value_regex,
+						      multi_replace);
 }
 
 void git_config_set_multivar_or_die(const char *key, const char *value,
diff --git a/submodule.c b/submodule.c
index 278b087..e76311d 100644
--- a/submodule.c
+++ b/submodule.c
@@ -68,7 +68,7 @@ int update_path_in_gitmodules(const char *oldpath, const char *newpath)
 	strbuf_addstr(&entry, "submodule.");
 	strbuf_addstr(&entry, submodule->name);
 	strbuf_addstr(&entry, ".path");
-	if (git_config_set_in_file(".gitmodules", entry.buf, newpath) < 0) {
+	if (git_config_set_in_file_gently(".gitmodules", entry.buf, newpath) < 0) {
 		/* Maybe the user already did that, don't error out here */
 		warning(_("Could not update .gitmodules entry %s"), entry.buf);
 		strbuf_release(&entry);
-- 
cgit v0.10.2-6-g49f6


From 3d1806487af395fb33d1de92633e96571b296305 Mon Sep 17 00:00:00 2001
From: Patrick Steinhardt <ps@pks.im>
Date: Mon, 22 Feb 2016 12:23:36 +0100
Subject: config: rename git_config_set_or_die to git_config_set

Rename git_config_set_or_die functions to git_config_set, leading
to the new default behavior of dying whenever a configuration
error occurs.

By now all callers that shall die on error have been transitioned
to the _or_die variants, thus making this patch a simple rename
of the functions.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/builtin/branch.c b/builtin/branch.c
index c043cfc..7b45b6b 100644
--- a/builtin/branch.c
+++ b/builtin/branch.c
@@ -594,7 +594,7 @@ static int edit_branch_description(const char *branch_name)
 	strbuf_stripspace(&buf, 1);
 
 	strbuf_addf(&name, "branch.%s.description", branch_name);
-	git_config_set_or_die(name.buf, buf.len ? buf.buf : NULL);
+	git_config_set(name.buf, buf.len ? buf.buf : NULL);
 	strbuf_release(&name);
 	strbuf_release(&buf);
 
@@ -790,10 +790,10 @@ int cmd_branch(int argc, const char **argv, const char *prefix)
 			die(_("Branch '%s' has no upstream information"), branch->name);
 
 		strbuf_addf(&buf, "branch.%s.remote", branch->name);
-		git_config_set_multivar_or_die(buf.buf, NULL, NULL, 1);
+		git_config_set_multivar(buf.buf, NULL, NULL, 1);
 		strbuf_reset(&buf);
 		strbuf_addf(&buf, "branch.%s.merge", branch->name);
-		git_config_set_multivar_or_die(buf.buf, NULL, NULL, 1);
+		git_config_set_multivar(buf.buf, NULL, NULL, 1);
 		strbuf_release(&buf);
 	} else if (argc > 0 && argc <= 2) {
 		struct branch *branch = branch_get(argv[0]);
diff --git a/builtin/clone.c b/builtin/clone.c
index a46d3d0..8a90cad 100644
--- a/builtin/clone.c
+++ b/builtin/clone.c
@@ -783,12 +783,12 @@ static void write_refspec_config(const char *src_ref_prefix,
 		/* Configure the remote */
 		if (value.len) {
 			strbuf_addf(&key, "remote.%s.fetch", option_origin);
-			git_config_set_multivar_or_die(key.buf, value.buf, "^$", 0);
+			git_config_set_multivar(key.buf, value.buf, "^$", 0);
 			strbuf_reset(&key);
 
 			if (option_mirror) {
 				strbuf_addf(&key, "remote.%s.mirror", option_origin);
-				git_config_set_or_die(key.buf, "true");
+				git_config_set(key.buf, "true");
 				strbuf_reset(&key);
 			}
 		}
@@ -946,14 +946,14 @@ int cmd_clone(int argc, const char **argv, const char *prefix)
 			src_ref_prefix = "refs/";
 		strbuf_addstr(&branch_top, src_ref_prefix);
 
-		git_config_set_or_die("core.bare", "true");
+		git_config_set("core.bare", "true");
 	} else {
 		strbuf_addf(&branch_top, "refs/remotes/%s/", option_origin);
 	}
 
 	strbuf_addf(&value, "+%s*:%s*", src_ref_prefix, branch_top.buf);
 	strbuf_addf(&key, "remote.%s.url", option_origin);
-	git_config_set_or_die(key.buf, repo);
+	git_config_set(key.buf, repo);
 	strbuf_reset(&key);
 
 	if (option_reference.nr)
diff --git a/builtin/init-db.c b/builtin/init-db.c
index ef19048..6223b7d 100644
--- a/builtin/init-db.c
+++ b/builtin/init-db.c
@@ -227,7 +227,7 @@ static int create_default_files(const char *template_path)
 	/* This forces creation of new config file */
 	xsnprintf(repo_version_string, sizeof(repo_version_string),
 		  "%d", GIT_REPO_VERSION);
-	git_config_set_or_die("core.repositoryformatversion", repo_version_string);
+	git_config_set("core.repositoryformatversion", repo_version_string);
 
 	/* Check filemode trustability */
 	path = git_path_buf(&buf, "config");
@@ -241,18 +241,18 @@ static int create_default_files(const char *template_path)
 		if (filemode && !reinit && (st1.st_mode & S_IXUSR))
 			filemode = 0;
 	}
-	git_config_set_or_die("core.filemode", filemode ? "true" : "false");
+	git_config_set("core.filemode", filemode ? "true" : "false");
 
 	if (is_bare_repository())
-		git_config_set_or_die("core.bare", "true");
+		git_config_set("core.bare", "true");
 	else {
 		const char *work_tree = get_git_work_tree();
-		git_config_set_or_die("core.bare", "false");
+		git_config_set("core.bare", "false");
 		/* allow template config file to override the default */
 		if (log_all_ref_updates == -1)
-			git_config_set_or_die("core.logallrefupdates", "true");
+			git_config_set("core.logallrefupdates", "true");
 		if (needs_work_tree_config(get_git_dir(), work_tree))
-			git_config_set_or_die("core.worktree", work_tree);
+			git_config_set("core.worktree", work_tree);
 	}
 
 	if (!reinit) {
@@ -265,12 +265,12 @@ static int create_default_files(const char *template_path)
 		    S_ISLNK(st1.st_mode))
 			unlink(path); /* good */
 		else
-			git_config_set_or_die("core.symlinks", "false");
+			git_config_set("core.symlinks", "false");
 
 		/* Check if the filesystem is case-insensitive */
 		path = git_path_buf(&buf, "CoNfIg");
 		if (!access(path, F_OK))
-			git_config_set_or_die("core.ignorecase", "true");
+			git_config_set("core.ignorecase", "true");
 		probe_utf8_pathname_composition();
 	}
 
@@ -386,8 +386,8 @@ int init_db(const char *template_dir, unsigned int flags)
 			xsnprintf(buf, sizeof(buf), "%d", OLD_PERM_EVERYBODY);
 		else
 			die("BUG: invalid value for shared_repository");
-		git_config_set_or_die("core.sharedrepository", buf);
-		git_config_set_or_die("receive.denyNonFastforwards", "true");
+		git_config_set("core.sharedrepository", buf);
+		git_config_set("receive.denyNonFastforwards", "true");
 	}
 
 	if (!(flags & INIT_DB_QUIET)) {
diff --git a/builtin/remote.c b/builtin/remote.c
index 6cacbca..4313695 100644
--- a/builtin/remote.c
+++ b/builtin/remote.c
@@ -119,7 +119,7 @@ static void add_branch(const char *key, const char *branchname,
 	else
 		strbuf_addf(tmp, "refs/heads/%s:refs/remotes/%s/%s",
 				branchname, remotename, branchname);
-	git_config_set_multivar_or_die(key, tmp->buf, "^$", 0);
+	git_config_set_multivar(key, tmp->buf, "^$", 0);
 }
 
 static const char mirror_advice[] =
@@ -197,7 +197,7 @@ static int add(int argc, const char **argv)
 		die(_("'%s' is not a valid remote name"), name);
 
 	strbuf_addf(&buf, "remote.%s.url", name);
-	git_config_set_or_die(buf.buf, url);
+	git_config_set(buf.buf, url);
 
 	if (!mirror || mirror & MIRROR_FETCH) {
 		strbuf_reset(&buf);
@@ -213,14 +213,14 @@ static int add(int argc, const char **argv)
 	if (mirror & MIRROR_PUSH) {
 		strbuf_reset(&buf);
 		strbuf_addf(&buf, "remote.%s.mirror", name);
-		git_config_set_or_die(buf.buf, "true");
+		git_config_set(buf.buf, "true");
 	}
 
 	if (fetch_tags != TAGS_DEFAULT) {
 		strbuf_reset(&buf);
 		strbuf_addf(&buf, "remote.%s.tagopt", name);
-		git_config_set_or_die(buf.buf,
-				      fetch_tags == TAGS_SET ? "--tags" : "--no-tags");
+		git_config_set(buf.buf,
+			       fetch_tags == TAGS_SET ? "--tags" : "--no-tags");
 	}
 
 	if (fetch && fetch_remote(name))
@@ -586,15 +586,15 @@ static int migrate_file(struct remote *remote)
 
 	strbuf_addf(&buf, "remote.%s.url", remote->name);
 	for (i = 0; i < remote->url_nr; i++)
-		git_config_set_multivar_or_die(buf.buf, remote->url[i], "^$", 0);
+		git_config_set_multivar(buf.buf, remote->url[i], "^$", 0);
 	strbuf_reset(&buf);
 	strbuf_addf(&buf, "remote.%s.push", remote->name);
 	for (i = 0; i < remote->push_refspec_nr; i++)
-		git_config_set_multivar_or_die(buf.buf, remote->push_refspec[i], "^$", 0);
+		git_config_set_multivar(buf.buf, remote->push_refspec[i], "^$", 0);
 	strbuf_reset(&buf);
 	strbuf_addf(&buf, "remote.%s.fetch", remote->name);
 	for (i = 0; i < remote->fetch_refspec_nr; i++)
-		git_config_set_multivar_or_die(buf.buf, remote->fetch_refspec[i], "^$", 0);
+		git_config_set_multivar(buf.buf, remote->fetch_refspec[i], "^$", 0);
 	if (remote->origin == REMOTE_REMOTES)
 		unlink_or_warn(git_path("remotes/%s", remote->name));
 	else if (remote->origin == REMOTE_BRANCHES)
@@ -646,7 +646,7 @@ static int mv(int argc, const char **argv)
 
 	strbuf_reset(&buf);
 	strbuf_addf(&buf, "remote.%s.fetch", rename.new);
-	git_config_set_multivar_or_die(buf.buf, NULL, NULL, 1);
+	git_config_set_multivar(buf.buf, NULL, NULL, 1);
 	strbuf_addf(&old_remote_context, ":refs/remotes/%s/", rename.old);
 	for (i = 0; i < oldremote->fetch_refspec_nr; i++) {
 		char *ptr;
@@ -666,7 +666,7 @@ static int mv(int argc, const char **argv)
 				  "\tPlease update the configuration manually if necessary."),
 				buf2.buf);
 
-		git_config_set_multivar_or_die(buf.buf, buf2.buf, "^$", 0);
+		git_config_set_multivar(buf.buf, buf2.buf, "^$", 0);
 	}
 
 	read_branches();
@@ -676,7 +676,7 @@ static int mv(int argc, const char **argv)
 		if (info->remote_name && !strcmp(info->remote_name, rename.old)) {
 			strbuf_reset(&buf);
 			strbuf_addf(&buf, "branch.%s.remote", item->string);
-			git_config_set_or_die(buf.buf, rename.new);
+			git_config_set(buf.buf, rename.new);
 		}
 	}
 
@@ -774,7 +774,7 @@ static int rm(int argc, const char **argv)
 				strbuf_reset(&buf);
 				strbuf_addf(&buf, "branch.%s.%s",
 						item->string, *k);
-				git_config_set_or_die(buf.buf, NULL);
+				git_config_set(buf.buf, NULL);
 			}
 		}
 	}
@@ -1556,10 +1556,10 @@ static int set_url(int argc, const char **argv)
 	/* Special cases that add new entry. */
 	if ((!oldurl && !delete_mode) || add_mode) {
 		if (add_mode)
-			git_config_set_multivar_or_die(name_buf.buf, newurl,
+			git_config_set_multivar(name_buf.buf, newurl,
 						       "^$", 0);
 		else
-			git_config_set_or_die(name_buf.buf, newurl);
+			git_config_set(name_buf.buf, newurl);
 		strbuf_release(&name_buf);
 
 		return 0;
@@ -1582,9 +1582,9 @@ static int set_url(int argc, const char **argv)
 	regfree(&old_regex);
 
 	if (!delete_mode)
-		git_config_set_multivar_or_die(name_buf.buf, newurl, oldurl, 0);
+		git_config_set_multivar(name_buf.buf, newurl, oldurl, 0);
 	else
-		git_config_set_multivar_or_die(name_buf.buf, NULL, oldurl, 1);
+		git_config_set_multivar(name_buf.buf, NULL, oldurl, 1);
 	return 0;
 }
 
diff --git a/builtin/submodule--helper.c b/builtin/submodule--helper.c
index c7e1ea2..f4c3eff 100644
--- a/builtin/submodule--helper.c
+++ b/builtin/submodule--helper.c
@@ -245,8 +245,8 @@ static int module_clone(int argc, const char **argv, const char *prefix)
 	p = git_pathdup_submodule(path, "config");
 	if (!p)
 		die(_("could not get submodule directory for '%s'"), path);
-	git_config_set_in_file_or_die(p, "core.worktree",
-				      relative_path(sb.buf, sm_gitdir, &rel_path));
+	git_config_set_in_file(p, "core.worktree",
+			       relative_path(sb.buf, sm_gitdir, &rel_path));
 	strbuf_release(&sb);
 	strbuf_release(&rel_path);
 	free(sm_gitdir);
diff --git a/cache.h b/cache.h
index 08046ba..dd39270 100644
--- a/cache.h
+++ b/cache.h
@@ -1523,15 +1523,15 @@ extern int git_config_maybe_bool(const char *, const char *);
 extern int git_config_string(const char **, const char *, const char *);
 extern int git_config_pathname(const char **, const char *, const char *);
 extern int git_config_set_in_file_gently(const char *, const char *, const char *);
-extern void git_config_set_in_file_or_die(const char *, const char *, const char *);
+extern void git_config_set_in_file(const char *, const char *, const char *);
 extern int git_config_set_gently(const char *, const char *);
-extern void git_config_set_or_die(const char *, const char *);
+extern void git_config_set(const char *, const char *);
 extern int git_config_parse_key(const char *, char **, int *);
 extern int git_config_key_is_valid(const char *key);
 extern int git_config_set_multivar_gently(const char *, const char *, const char *, int);
-extern void git_config_set_multivar_or_die(const char *, const char *, const char *, int);
+extern void git_config_set_multivar(const char *, const char *, const char *, int);
 extern int git_config_set_multivar_in_file_gently(const char *, const char *, const char *, const char *, int);
-extern void git_config_set_multivar_in_file_or_die(const char *, const char *, const char *, const char *, int);
+extern void git_config_set_multivar_in_file(const char *, const char *, const char *, const char *, int);
 extern int git_config_rename_section(const char *, const char *);
 extern int git_config_rename_section_in_file(const char *, const char *, const char *);
 extern const char *git_etc_gitconfig(void);
diff --git a/compat/precompose_utf8.c b/compat/precompose_utf8.c
index 9ff1ebe..dfbe6d8 100644
--- a/compat/precompose_utf8.c
+++ b/compat/precompose_utf8.c
@@ -50,8 +50,8 @@ void probe_utf8_pathname_composition(void)
 		close(output_fd);
 		git_path_buf(&path, "%s", auml_nfd);
 		precomposed_unicode = access(path.buf, R_OK) ? 0 : 1;
-		git_config_set_or_die("core.precomposeunicode",
-				      precomposed_unicode ? "true" : "false");
+		git_config_set("core.precomposeunicode",
+			       precomposed_unicode ? "true" : "false");
 		git_path_buf(&path, "%s", auml_nfc);
 		if (unlink(path.buf))
 			die_errno(_("failed to unlink '%s'"), path.buf);
diff --git a/config.c b/config.c
index e7f42da..325c3ea 100644
--- a/config.c
+++ b/config.c
@@ -1831,10 +1831,10 @@ int git_config_set_in_file_gently(const char *config_filename,
 	return git_config_set_multivar_in_file_gently(config_filename, key, value, NULL, 0);
 }
 
-void git_config_set_in_file_or_die(const char *config_filename,
-			const char *key, const char *value)
+void git_config_set_in_file(const char *config_filename,
+			    const char *key, const char *value)
 {
-	git_config_set_multivar_in_file_or_die(config_filename, key, value, NULL, 0);
+	git_config_set_multivar_in_file(config_filename, key, value, NULL, 0);
 }
 
 int git_config_set_gently(const char *key, const char *value)
@@ -1842,9 +1842,9 @@ int git_config_set_gently(const char *key, const char *value)
 	return git_config_set_multivar_gently(key, value, NULL, 0);
 }
 
-void git_config_set_or_die(const char *key, const char *value)
+void git_config_set(const char *key, const char *value)
 {
-	git_config_set_multivar_or_die(key, value, NULL, 0);
+	git_config_set_multivar(key, value, NULL, 0);
 }
 
 /*
@@ -2191,9 +2191,9 @@ write_err_out:
 
 }
 
-void git_config_set_multivar_in_file_or_die(const char *config_filename,
-				const char *key, const char *value,
-				const char *value_regex, int multi_replace)
+void git_config_set_multivar_in_file(const char *config_filename,
+				     const char *key, const char *value,
+				     const char *value_regex, int multi_replace)
 {
 	if (git_config_set_multivar_in_file_gently(config_filename, key, value,
 						   value_regex, multi_replace) < 0)
@@ -2207,11 +2207,11 @@ int git_config_set_multivar_gently(const char *key, const char *value,
 						      multi_replace);
 }
 
-void git_config_set_multivar_or_die(const char *key, const char *value,
-			const char *value_regex, int multi_replace)
+void git_config_set_multivar(const char *key, const char *value,
+			     const char *value_regex, int multi_replace)
 {
-	git_config_set_multivar_in_file_or_die(NULL, key, value, value_regex,
-					       multi_replace);
+	git_config_set_multivar_in_file(NULL, key, value, value_regex,
+					multi_replace);
 }
 
 static int section_name_match (const char *buf, const char *name)
diff --git a/sequencer.c b/sequencer.c
index 3c109b6..8c58fa2 100644
--- a/sequencer.c
+++ b/sequencer.c
@@ -933,31 +933,31 @@ static void save_opts(struct replay_opts *opts)
 	const char *opts_file = git_path_opts_file();
 
 	if (opts->no_commit)
-		git_config_set_in_file_or_die(opts_file, "options.no-commit", "true");
+		git_config_set_in_file(opts_file, "options.no-commit", "true");
 	if (opts->edit)
-		git_config_set_in_file_or_die(opts_file, "options.edit", "true");
+		git_config_set_in_file(opts_file, "options.edit", "true");
 	if (opts->signoff)
-		git_config_set_in_file_or_die(opts_file, "options.signoff", "true");
+		git_config_set_in_file(opts_file, "options.signoff", "true");
 	if (opts->record_origin)
-		git_config_set_in_file_or_die(opts_file, "options.record-origin", "true");
+		git_config_set_in_file(opts_file, "options.record-origin", "true");
 	if (opts->allow_ff)
-		git_config_set_in_file_or_die(opts_file, "options.allow-ff", "true");
+		git_config_set_in_file(opts_file, "options.allow-ff", "true");
 	if (opts->mainline) {
 		struct strbuf buf = STRBUF_INIT;
 		strbuf_addf(&buf, "%d", opts->mainline);
-		git_config_set_in_file_or_die(opts_file, "options.mainline", buf.buf);
+		git_config_set_in_file(opts_file, "options.mainline", buf.buf);
 		strbuf_release(&buf);
 	}
 	if (opts->strategy)
-		git_config_set_in_file_or_die(opts_file, "options.strategy", opts->strategy);
+		git_config_set_in_file(opts_file, "options.strategy", opts->strategy);
 	if (opts->gpg_sign)
-		git_config_set_in_file_or_die(opts_file, "options.gpg-sign", opts->gpg_sign);
+		git_config_set_in_file(opts_file, "options.gpg-sign", opts->gpg_sign);
 	if (opts->xopts) {
 		int i;
 		for (i = 0; i < opts->xopts_nr; i++)
-			git_config_set_multivar_in_file_or_die(opts_file,
-							       "options.strategy-option",
-							       opts->xopts[i], "^$", 0);
+			git_config_set_multivar_in_file(opts_file,
+							"options.strategy-option",
+							opts->xopts[i], "^$", 0);
 	}
 }
 
diff --git a/submodule.c b/submodule.c
index e76311d..b58d4ee 100644
--- a/submodule.c
+++ b/submodule.c
@@ -1034,9 +1034,9 @@ void connect_work_tree_and_git_dir(const char *work_tree, const char *git_dir)
 	/* Update core.worktree setting */
 	strbuf_reset(&file_name);
 	strbuf_addf(&file_name, "%s/config", git_dir);
-	git_config_set_in_file_or_die(file_name.buf, "core.worktree",
-				      relative_path(real_work_tree, git_dir,
-						    &rel_path));
+	git_config_set_in_file(file_name.buf, "core.worktree",
+			       relative_path(real_work_tree, git_dir,
+					     &rel_path));
 
 	strbuf_release(&file_name);
 	strbuf_release(&rel_path);
-- 
cgit v0.10.2-6-g49f6