Code

Merge branch 'js/config-cb'
[git.git] / builtin-apply.c
index bbdf08a10a35b9c6263cb1e899381d40d7b51e57..c4978893122bbcfd80201fe937eb8433b29e1aa0 100644 (file)
@@ -418,7 +418,7 @@ static int guess_p_value(const char *nameline)
 }
 
 /*
- * Get the name etc info from the --/+++ lines of a traditional patch header
+ * Get the name etc info from the ---/+++ lines of a traditional patch header
  *
  * FIXME! The end-of-filename heuristics are kind of screwy. For existing
  * files, we can happily check the index for a match, but for creating a
@@ -1143,21 +1143,6 @@ static int parse_single_patch(char *line, unsigned long size, struct patch *patc
        if (patch->is_delete < 0 &&
            (newlines || (patch->fragments && patch->fragments->next)))
                patch->is_delete = 0;
-       if (!unidiff_zero || context) {
-               /* If the user says the patch is not generated with
-                * --unified=0, or if we have seen context lines,
-                * then not having oldlines means the patch is creation,
-                * and not having newlines means the patch is deletion.
-                */
-               if (patch->is_new < 0 && !oldlines) {
-                       patch->is_new = 1;
-                       patch->old_name = NULL;
-               }
-               if (patch->is_delete < 0 && !newlines) {
-                       patch->is_delete = 1;
-                       patch->new_name = NULL;
-               }
-       }
 
        if (0 < patch->is_new && oldlines)
                die("new file %s depends on old contents", patch->new_name);
@@ -2267,16 +2252,11 @@ static int verify_index_match(struct cache_entry *ce, struct stat *st)
        return ce_match_stat(ce, st, CE_MATCH_IGNORE_VALID);
 }
 
-static int check_patch(struct patch *patch, struct patch *prev_patch)
+static int check_preimage(struct patch *patch, struct cache_entry **ce, struct stat *st)
 {
-       struct stat st;
        const char *old_name = patch->old_name;
-       const char *new_name = patch->new_name;
-       const char *name = old_name ? old_name : new_name;
-       struct cache_entry *ce = NULL;
-       int ok_if_exists;
-
-       patch->rejected = 1; /* we will drop this after we succeed */
+       int stat_ret = 0;
+       unsigned st_mode = 0;
 
        /*
         * Make sure that we do not have local modifications from the
@@ -2284,58 +2264,84 @@ static int check_patch(struct patch *patch, struct patch *prev_patch)
         * we have the preimage file to be patched in the work tree,
         * unless --cached, which tells git to apply only in the index.
         */
-       if (old_name) {
-               int stat_ret = 0;
-               unsigned st_mode = 0;
-
-               if (!cached)
-                       stat_ret = lstat(old_name, &st);
-               if (check_index) {
-                       int pos = cache_name_pos(old_name, strlen(old_name));
-                       if (pos < 0)
-                               return error("%s: does not exist in index",
-                                            old_name);
-                       ce = active_cache[pos];
-                       if (stat_ret < 0) {
-                               struct checkout costate;
-                               if (errno != ENOENT)
-                                       return error("%s: %s", old_name,
-                                                    strerror(errno));
-                               /* checkout */
-                               costate.base_dir = "";
-                               costate.base_dir_len = 0;
-                               costate.force = 0;
-                               costate.quiet = 0;
-                               costate.not_new = 0;
-                               costate.refresh_cache = 1;
-                               if (checkout_entry(ce,
-                                                  &costate,
-                                                  NULL) ||
-                                   lstat(old_name, &st))
-                                       return -1;
-                       }
-                       if (!cached && verify_index_match(ce, &st))
-                               return error("%s: does not match index",
-                                            old_name);
-                       if (cached)
-                               st_mode = ce->ce_mode;
-               } else if (stat_ret < 0)
-                       return error("%s: %s", old_name, strerror(errno));
-
-               if (!cached)
-                       st_mode = ce_mode_from_stat(ce, st.st_mode);
+       if (!old_name)
+               return 0;
 
+       assert(patch->is_new <= 0);
+       if (!cached) {
+               stat_ret = lstat(old_name, st);
+               if (stat_ret && errno != ENOENT)
+                       return error("%s: %s", old_name, strerror(errno));
+       }
+       if (check_index) {
+               int pos = cache_name_pos(old_name, strlen(old_name));
+               if (pos < 0) {
+                       if (patch->is_new < 0)
+                               goto is_new;
+                       return error("%s: does not exist in index", old_name);
+               }
+               *ce = active_cache[pos];
+               if (stat_ret < 0) {
+                       struct checkout costate;
+                       /* checkout */
+                       costate.base_dir = "";
+                       costate.base_dir_len = 0;
+                       costate.force = 0;
+                       costate.quiet = 0;
+                       costate.not_new = 0;
+                       costate.refresh_cache = 1;
+                       if (checkout_entry(*ce, &costate, NULL) ||
+                           lstat(old_name, st))
+                               return -1;
+               }
+               if (!cached && verify_index_match(*ce, st))
+                       return error("%s: does not match index", old_name);
+               if (cached)
+                       st_mode = (*ce)->ce_mode;
+       } else if (stat_ret < 0) {
                if (patch->is_new < 0)
-                       patch->is_new = 0;
-               if (!patch->old_mode)
-                       patch->old_mode = st_mode;
-               if ((st_mode ^ patch->old_mode) & S_IFMT)
-                       return error("%s: wrong type", old_name);
-               if (st_mode != patch->old_mode)
-                       fprintf(stderr, "warning: %s has type %o, expected %o\n",
-                               old_name, st_mode, patch->old_mode);
+                       goto is_new;
+               return error("%s: %s", old_name, strerror(errno));
        }
 
+       if (!cached)
+               st_mode = ce_mode_from_stat(*ce, st->st_mode);
+
+       if (patch->is_new < 0)
+               patch->is_new = 0;
+       if (!patch->old_mode)
+               patch->old_mode = st_mode;
+       if ((st_mode ^ patch->old_mode) & S_IFMT)
+               return error("%s: wrong type", old_name);
+       if (st_mode != patch->old_mode)
+               fprintf(stderr, "warning: %s has type %o, expected %o\n",
+                       old_name, st_mode, patch->old_mode);
+       return 0;
+
+ is_new:
+       patch->is_new = 1;
+       patch->is_delete = 0;
+       patch->old_name = NULL;
+       return 0;
+}
+
+static int check_patch(struct patch *patch, struct patch *prev_patch)
+{
+       struct stat st;
+       const char *old_name = patch->old_name;
+       const char *new_name = patch->new_name;
+       const char *name = old_name ? old_name : new_name;
+       struct cache_entry *ce = NULL;
+       int ok_if_exists;
+       int status;
+
+       patch->rejected = 1; /* we will drop this after we succeed */
+
+       status = check_preimage(patch, &ce, &st);
+       if (status)
+               return status;
+       old_name = patch->old_name;
+
        if (new_name && prev_patch && 0 < prev_patch->is_delete &&
            !strcmp(prev_patch->old_name, new_name))
                /*