submodule: Add --force option for git submodule update

diff --git a/merge-recursive.c b/merge-recursive.c
index 231e5cbd7f87c95f909709cc649bfb202a4ece87..42d52cb5bc17e9bb289a6b6c3e90c97d241660a2 100644 (file)
--- a/merge-recursive.c
+++ b/merge-recursive.c
@@ -83,10 +83,8 @@ struct rename_df_conflict_info {
  * Since we want to write the index eventually, we cannot reuse the index
  * for these (temporary) data.
  */
-struct stage_data
-{
-       struct
-       {
+struct stage_data {
+       struct {
                unsigned mode;
                unsigned char sha[20];
        } stages[4];
@@ -403,8 +401,7 @@ static void make_room_for_directories_of_df_conflicts(struct merge_options *o,
        }
 }
 
-struct rename
-{
+struct rename {
        struct diff_filepair *pair;
        struct stage_data *src_entry;
        struct stage_data *dst_entry;
@@ -435,6 +432,7 @@ static struct string_list *get_renames(struct merge_options *o,
        opts.rename_limit = o->merge_rename_limit >= 0 ? o->merge_rename_limit :
                            o->diff_rename_limit >= 0 ? o->diff_rename_limit :
                            500;
+       opts.rename_score = o->rename_score;
        opts.warn_on_too_large_rename = 1;
        opts.output_format = DIFF_FORMAT_NO_OUTPUT;
        if (diff_setup_done(&opts) < 0)
@@ -716,8 +714,7 @@ static void update_file(struct merge_options *o,
 
 /* Low level file merging, update and removal */
 
-struct merge_file_info
-{
+struct merge_file_info {
        unsigned char sha[20];
        unsigned mode;
        unsigned clean:1,
@@ -733,22 +730,26 @@ static int merge_3way(struct merge_options *o,
                      const char *branch2)
 {
        mmfile_t orig, src1, src2;
+       struct ll_merge_options ll_opts = {0};
        char *base_name, *name1, *name2;
        int merge_status;
-       int favor;
 
-       if (o->call_depth)
-               favor = 0;
-       else {
+       ll_opts.renormalize = o->renormalize;
+       ll_opts.xdl_opts = o->xdl_opts;
+
+       if (o->call_depth) {
+               ll_opts.virtual_ancestor = 1;
+               ll_opts.variant = 0;
+       } else {
                switch (o->recursive_variant) {
                case MERGE_RECURSIVE_OURS:
-                       favor = XDL_MERGE_FAVOR_OURS;
+                       ll_opts.variant = XDL_MERGE_FAVOR_OURS;
                        break;
                case MERGE_RECURSIVE_THEIRS:
-                       favor = XDL_MERGE_FAVOR_THEIRS;
+                       ll_opts.variant = XDL_MERGE_FAVOR_THEIRS;
                        break;
                default:
-                       favor = 0;
+                       ll_opts.variant = 0;
                        break;
                }
        }
@@ -771,10 +772,7 @@ static int merge_3way(struct merge_options *o,
        read_mmblob(&src2, b->sha1);
 
        merge_status = ll_merge(result_buf, a->path, &orig, base_name,
-                               &src1, name1, &src2, name2,
-                               ((o->call_depth ? LL_OPT_VIRTUAL_ANCESTOR : 0) |
-                                (o->renormalize ? LL_OPT_RENORMALIZE : 0) |
-                                create_ll_flag(favor)));
+                               &src1, name1, &src2, name2, &ll_opts);
 
        free(name1);
        free(name2);
@@ -1756,3 +1754,37 @@ 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, "patience"))
+               o->xdl_opts |= XDF_PATIENCE_DIFF;
+       else if (!strcmp(s, "ignore-space-change"))
+               o->xdl_opts |= XDF_IGNORE_WHITESPACE_CHANGE;
+       else if (!strcmp(s, "ignore-all-space"))
+               o->xdl_opts |= XDF_IGNORE_WHITESPACE;
+       else if (!strcmp(s, "ignore-space-at-eol"))
+               o->xdl_opts |= XDF_IGNORE_WHITESPACE_AT_EOL;
+       else if (!strcmp(s, "renormalize"))
+               o->renormalize = 1;
+       else if (!strcmp(s, "no-renormalize"))
+               o->renormalize = 0;
+       else if (!prefixcmp(s, "rename-threshold=")) {
+               const char *score = s + strlen("rename-threshold=");
+               if ((o->rename_score = parse_rename_score(&score)) == -1 || *score != 0)
+                       return -1;
+       }
+       else
+               return -1;
+       return 0;
+}