merge-recursive: expose merge options for builtin merge

There are two very similar blocks of code that recognize options for
the "recursive" merge strategy.  Unify them.

No functional change intended.

Cc: Avery Pennarun <apenwarr@gmail.com>
Helped-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/builtin/merge-recursive.c b/builtin/merge-recursive.c
index c2d4677fd3db9b4e1360e0c45fdd2d4a110b5629..5a52f3d0a23d12ed64fd49134cf94c8b0045eeb2 100644 (file)
--- a/builtin/merge-recursive.c
+++ b/builtin/merge-recursive.c
@@ -37,19 +37,7 @@ int cmd_merge_recursive(int argc, const char **argv, const char *prefix)
                if (!prefixcmp(arg, "--")) {
                        if (!arg[2])
                                break;
-                       if (!strcmp(arg+2, "ours"))
-                               o.recursive_variant = MERGE_RECURSIVE_OURS;
-                       else if (!strcmp(arg+2, "theirs"))
-                               o.recursive_variant = MERGE_RECURSIVE_THEIRS;
-                       else if (!strcmp(arg+2, "subtree"))
-                               o.subtree_shift = "";
-                       else if (!prefixcmp(arg+2, "subtree="))
-                               o.subtree_shift = arg + 10;
-                       else if (!strcmp(arg+2, "renormalize"))
-                               o.renormalize = 1;
-                       else if (!strcmp(arg+2, "no-renormalize"))
-                               o.renormalize = 0;
-                       else
+                       if (parse_merge_opt(&o, arg + 2))
                                die("Unknown option %s", arg);
                        continue;
                }

diff --git a/builtin/merge.c b/builtin/merge.c
index 037cd47e7016c24815841b69e77394520f4731c6..721c424e558329feff10e55456f15bf728b3b880 100644 (file)
--- a/builtin/merge.c
+++ b/builtin/merge.c
@@ -629,25 +629,9 @@ static int try_merge_strategy(const char *strategy, struct commit_list *common,
 
                o.renormalize = option_renormalize;
 
-               /*
-                * NEEDSWORK: merge with table in builtin/merge-recursive
-                */
-               for (x = 0; x < xopts_nr; x++) {
-                       if (!strcmp(xopts[x], "ours"))
-                               o.recursive_variant = MERGE_RECURSIVE_OURS;
-                       else if (!strcmp(xopts[x], "theirs"))
-                               o.recursive_variant = MERGE_RECURSIVE_THEIRS;
-                       else if (!strcmp(xopts[x], "subtree"))
-                               o.subtree_shift = "";
-                       else if (!prefixcmp(xopts[x], "subtree="))
-                               o.subtree_shift = xopts[x]+8;
-                       else if (!strcmp(xopts[x], "renormalize"))
-                               o.renormalize = 1;
-                       else if (!strcmp(xopts[x], "no-renormalize"))
-                               o.renormalize = 0;
-                       else
+               for (x = 0; x < xopts_nr; x++)
+                       if (parse_merge_opt(&o, xopts[x]))
                                die("Unknown option for merge-recursive: -X%s", xopts[x]);
-               }
 
                o.branch1 = head_arg;
                o.branch2 = remoteheads->item->util;

diff --git a/merge-recursive.c b/merge-recursive.c
index 762b5494d216b6a3cfe7e79847071e61d9669732..44576b79278107534f40cb2d3c7712b50e91fdc3 100644 (file)
--- a/merge-recursive.c
+++ b/merge-recursive.c
@@ -1499,3 +1499,24 @@ void init_merge_options(struct merge_options *o)
        memset(&o->current_directory_set, 0, sizeof(struct string_list));
        o->current_directory_set.strdup_strings = 1;
 }
+
+int parse_merge_opt(struct merge_options *o, const char *s)
+{
+       if (!s || !*s)
+               return -1;
+       if (!strcmp(s, "ours"))
+               o->recursive_variant = MERGE_RECURSIVE_OURS;
+       else if (!strcmp(s, "theirs"))
+               o->recursive_variant = MERGE_RECURSIVE_THEIRS;
+       else if (!strcmp(s, "subtree"))
+               o->subtree_shift = "";
+       else if (!prefixcmp(s, "subtree="))
+               o->subtree_shift = s + strlen("subtree=");
+       else if (!strcmp(s, "renormalize"))
+               o->renormalize = 1;
+       else if (!strcmp(s, "no-renormalize"))
+               o->renormalize = 0;
+       else
+               return -1;
+       return 0;
+}

diff --git a/merge-recursive.h b/merge-recursive.h
index c5fbe796bb799d02d115420d16657788acc1f0d8..37ff99a2981dc618acdd5c7b1197ba20b9a53f4b 100644 (file)
--- a/merge-recursive.h
+++ b/merge-recursive.h
@@ -55,6 +55,8 @@ int merge_recursive_generic(struct merge_options *o,
 void init_merge_options(struct merge_options *o);
 struct tree *write_tree_from_memory(struct merge_options *o);
 
+int parse_merge_opt(struct merge_options *out, const char *s);
+
 /* builtin/merge.c */
 int try_merge_command(const char *strategy, struct commit_list *common, const char *head_arg, struct commit_list *remotes);