cherry-pick/revert: add support for -X/--strategy-option
[git/git.git] / builtin / revert.c
index bb6e9e8..dc1b702 100644 (file)
@@ -44,7 +44,11 @@ static const char **commit_argv;
 static int allow_rerere_auto;
 
 static const char *me;
+
+/* Merge strategy. */
 static const char *strategy;
+static const char **xopts;
+static size_t xopts_nr, xopts_alloc;
 
 #define GIT_REFLOG_ACTION "GIT_REFLOG_ACTION"
 
@@ -55,6 +59,17 @@ static const char * const *revert_or_cherry_pick_usage(void)
        return action == REVERT ? revert_usage : cherry_pick_usage;
 }
 
+static int option_parse_x(const struct option *opt,
+                         const char *arg, int unset)
+{
+       if (unset)
+               return 0;
+
+       ALLOC_GROW(xopts, xopts_nr + 1, xopts_alloc);
+       xopts[xopts_nr++] = xstrdup(arg);
+       return 0;
+}
+
 static void parse_args(int argc, const char **argv)
 {
        const char * const * usage_str = revert_or_cherry_pick_usage();
@@ -67,6 +82,8 @@ static void parse_args(int argc, const char **argv)
                OPT_INTEGER('m', "mainline", &mainline, "parent number"),
                OPT_RERERE_AUTOUPDATE(&allow_rerere_auto),
                OPT_STRING(0, "strategy", &strategy, "strategy", "merge strategy"),
+               OPT_CALLBACK('X', "strategy-option", &xopts, "option",
+                       "option for merge strategy", option_parse_x),
                OPT_END(),
                OPT_END(),
                OPT_END(),
@@ -311,18 +328,13 @@ static int do_recursive_merge(struct commit *base, struct commit *next,
        struct merge_options o;
        struct tree *result, *next_tree, *base_tree, *head_tree;
        int clean, index_fd;
+       const char **xopt;
        static struct lock_file index_lock;
 
        index_fd = hold_locked_index(&index_lock, 1);
 
        read_cache();
 
-       /*
-        * NEEDSWORK: cherry-picking between branches with
-        * different end-of-line normalization is a pain;
-        * plumb in an option to set o.renormalize?
-        * (or better: arbitrary -X options)
-        */
        init_merge_options(&o);
        o.ancestor = base ? base_label : "(empty tree)";
        o.branch1 = "HEAD";
@@ -332,6 +344,9 @@ static int do_recursive_merge(struct commit *base, struct commit *next,
        next_tree = next ? next->tree : empty_tree();
        base_tree = base ? base->tree : empty_tree();
 
+       for (xopt = xopts; xopt != xopts + xopts_nr; xopt++)
+               parse_merge_opt(&o, *xopt);
+
        clean = merge_trees(&o,
                            head_tree,
                            next_tree, base_tree, &result);
@@ -503,7 +518,7 @@ static int do_pick_commit(void)
 
                commit_list_insert(base, &common);
                commit_list_insert(next, &remotes);
-               res = try_merge_command(strategy, common,
+               res = try_merge_command(strategy, xopts_nr, xopts, common,
                                        sha1_to_hex(head), remotes);
                free_commit_list(common);
                free_commit_list(remotes);