[PATCH] commit-tree: do not pay attention to commit.gpgsign

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ba3c69a9 (commit: teach --gpg-sign option, 2011-10-05) introduced a
"signed commit" by teaching --[no-gpg-sign option and commit.gpgsign
configuration variable to various commands that create commits.

Teaching these to "git commit" and "git merge", both of which are
end-user facing Porcelain commands, was perfectly fine.  Allowing
the plumbing "git commit-tree" to suddenly change the behaviour to
surprise the scripts by paying attention to commit.gpgsign was not.

Among the in-tree scripts, filter-branch, quiltimport, rebase and
stash are the commands that run "commit-tree".  If any of these
wants to allow users to always sign every single commit, they should
offer their own configuration (e.g. "filterBranch..gpgsign") with an
option to disable (e.g. "git filter-branch --no-gpgsign").

Ignoring commit.gpgsign option _obviously_ breaks the backward
compatibility, but I seriously doubt anybody sane is depending on
this misfeature that commit-tree blindly follows commit.gpgsign in
any third-party script that calls it.

Signed-off-by: Junio C Hamano <gitster@xxxxxxxxx>
---

 * This is an simpler alternative that forces commit-tree callers
   that want to honor commit.gpgsign to do so themselves.

 builtin/commit-tree.c | 15 +--------------
 1 file changed, 1 insertion(+), 14 deletions(-)

diff --git a/builtin/commit-tree.c b/builtin/commit-tree.c
index 3feeffe..e4ba0d8 100644
--- a/builtin/commit-tree.c
+++ b/builtin/commit-tree.c
@@ -8,7 +8,6 @@
 #include "tree.h"
 #include "builtin.h"
 #include "utf8.h"
-#include "gpg-interface.h"
 
 static const char commit_tree_usage[] = "git commit-tree [(-p <sha1>)...] [-S[<keyid>]] [-m <message>] [-F <file>] <sha1>";
 
@@ -28,18 +27,6 @@ static void new_parent(struct commit *parent, struct commit_list **parents_p)
 	commit_list_insert(parent, parents_p);
 }
 
-static int commit_tree_config(const char *var, const char *value, void *cb)
-{
-	int status = git_gpg_config(var, value, NULL);
-	if (status)
-		return status;
-	if (!strcmp(var, "commit.gpgsign")) {
-		sign_commit = git_config_bool(var, value) ? "" : NULL;
-		return 0;
-	}
-	return git_default_config(var, value, cb);
-}
-
 int cmd_commit_tree(int argc, const char **argv, const char *prefix)
 {
 	int i, got_tree = 0;
@@ -48,7 +35,7 @@ int cmd_commit_tree(int argc, const char **argv, const char *prefix)
 	unsigned char commit_sha1[20];
 	struct strbuf buffer = STRBUF_INIT;
 
-	git_config(commit_tree_config, NULL);
+	git_config(git_default_config, NULL);
 
 	if (argc < 2 || !strcmp(argv[1], "-h"))
 		usage(commit_tree_usage);
--
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