Subject: [PATCH v6 08/13] merge-recursive: move better_branch_name() to merge.c

From: Alban Gruin <[email-masked]>
Date: Tue, 24 Nov 2020 12:53:10 +0100

better_branch_name() will be used by merge-octopus once it is rewritten
in C, so instead of duplicating it, this moves this function
preventively inside an appropriate file in libgit.a.  This function is
also renamed to reflect its usage by merge strategies.

Signed-off-by: Alban Gruin <[email-masked]>
---
 builtin/merge-recursive.c | 16 ++--------------
 cache.h                   |  2 +-
 merge.c                   | 12 ++++++++++++
 3 files changed, 15 insertions(+), 15 deletions(-)

diff --git a/builtin/merge-recursive.c b/builtin/merge-recursive.c
index a4bfd8fc51..972243b5e9 100644
--- a/builtin/merge-recursive.c
+++ b/builtin/merge-recursive.c
@@ -8,18 +8,6 @@
 static const char builtin_merge_recursive_usage[] =
 	"git %s <base>... -- <head> <remote> ...";
 
-static char *better_branch_name(const char *branch)
-{
-	static char githead_env[8 + GIT_MAX_HEXSZ + 1];
-	char *name;
-
-	if (strlen(branch) != the_hash_algo->hexsz)
-		return xstrdup(branch);
-	xsnprintf(githead_env, sizeof(githead_env), "GITHEAD_%s", branch);
-	name = getenv(githead_env);
-	return xstrdup(name ? name : branch);
-}
-
 int cmd_merge_recursive(int argc, const char **argv, const char *prefix)
 {
 	const struct object_id *bases[21];
@@ -75,8 +63,8 @@ int cmd_merge_recursive(int argc, const char **argv, const char *prefix)
 	if (get_oid(o.branch2, &h2))
 		die(_("could not resolve ref '%s'"), o.branch2);
 
-	o.branch1 = better1 = better_branch_name(o.branch1);
-	o.branch2 = better2 = better_branch_name(o.branch2);
+	o.branch1 = better1 = merge_get_better_branch_name(o.branch1);
+	o.branch2 = better2 = merge_get_better_branch_name(o.branch2);
 
 	if (o.verbosity >= 3)
 		printf(_("Merging %s with %s\n"), o.branch1, o.branch2);
diff --git a/cache.h b/cache.h
index be16ab3215..2d844576ea 100644
--- a/cache.h
+++ b/cache.h
@@ -1933,7 +1933,7 @@ int checkout_fast_forward(struct repository *r,
 			  const struct object_id *from,
 			  const struct object_id *to,
 			  int overwrite_ignore);
-
+char *merge_get_better_branch_name(const char *branch);
 
 int sane_execvp(const char *file, char *const argv[]);
 
diff --git a/merge.c b/merge.c
index 5fb88af102..801d673c5f 100644
--- a/merge.c
+++ b/merge.c
@@ -109,3 +109,15 @@ int checkout_fast_forward(struct repository *r,
 		return error(_("unable to write new index file"));
 	return 0;
 }
+
+char *merge_get_better_branch_name(const char *branch)
+{
+	static char githead_env[8 + GIT_MAX_HEXSZ + 1];
+	char *name;
+
+	if (strlen(branch) != the_hash_algo->hexsz)
+		return xstrdup(branch);
+	xsnprintf(githead_env, sizeof(githead_env), "GITHEAD_%s", branch);
+	name = getenv(githead_env);
+	return xstrdup(name ? name : branch);
+}
-- 
2.29.2.260.ge31aba42fb