git svn: cleanup t9138-multiple-branches
[gitweb.git] / builtin-apply.c
index 1926cd80559d3e6d6e917d1ed37c308c3a06d987..4cf819c7905d5997a6ce2a89b4ecce1176a4b045 100644 (file)
@@ -320,6 +320,20 @@ static int name_terminate(const char *name, int namelen, int c, int terminate)
        return 1;
 }
 
+/* remove double slashes to make --index work with such filenames */
+static char *squash_slash(char *name)
+{
+       int i = 0, j = 0;
+
+       while (name[i]) {
+               if ((name[j++] = name[i++]) == '/')
+                       while (name[i] == '/')
+                               i++;
+       }
+       name[j] = '\0';
+       return name;
+}
+
 static char *find_name(const char *line, char *def, int p_value, int terminate)
 {
        int len;
@@ -349,7 +363,7 @@ static char *find_name(const char *line, char *def, int p_value, int terminate)
                                free(def);
                                if (root)
                                        strbuf_insert(&name, 0, root, root_len);
-                               return strbuf_detach(&name, NULL);
+                               return squash_slash(strbuf_detach(&name, NULL));
                        }
                }
                strbuf_release(&name);
@@ -369,10 +383,10 @@ static char *find_name(const char *line, char *def, int p_value, int terminate)
                        start = line;
        }
        if (!start)
-               return def;
+               return squash_slash(def);
        len = line - start;
        if (!len)
-               return def;
+               return squash_slash(def);
 
        /*
         * Generally we prefer the shorter name, especially
@@ -383,7 +397,7 @@ static char *find_name(const char *line, char *def, int p_value, int terminate)
        if (def) {
                int deflen = strlen(def);
                if (deflen < len && !strncmp(start, def, deflen))
-                       return def;
+                       return squash_slash(def);
                free(def);
        }
 
@@ -392,10 +406,10 @@ static char *find_name(const char *line, char *def, int p_value, int terminate)
                strcpy(ret, root);
                memcpy(ret + root_len, start, len);
                ret[root_len + len] = '\0';
-               return ret;
+               return squash_slash(ret);
        }
 
-       return xmemdupz(start, len);
+       return squash_slash(xmemdupz(start, len));
 }
 
 static int count_slashes(const char *cp)
@@ -2271,6 +2285,25 @@ static struct patch *in_fn_table(const char *name)
        return NULL;
 }
 
+/*
+ * item->util in the filename table records the status of the path.
+ * Usually it points at a patch (whose result records the contents
+ * of it after applying it), but it could be PATH_WAS_DELETED for a
+ * path that a previously applied patch has already removed.
+ */
+ #define PATH_TO_BE_DELETED ((struct patch *) -2)
+#define PATH_WAS_DELETED ((struct patch *) -1)
+
+static int to_be_deleted(struct patch *patch)
+{
+       return patch == PATH_TO_BE_DELETED;
+}
+
+static int was_deleted(struct patch *patch)
+{
+       return patch == PATH_WAS_DELETED;
+}
+
 static void add_to_fn_table(struct patch *patch)
 {
        struct string_list_item *item;
@@ -2291,7 +2324,22 @@ static void add_to_fn_table(struct patch *patch)
         */
        if ((patch->new_name == NULL) || (patch->is_rename)) {
                item = string_list_insert(patch->old_name, &fn_table);
-               item->util = (struct patch *) -1;
+               item->util = PATH_WAS_DELETED;
+       }
+}
+
+static void prepare_fn_table(struct patch *patch)
+{
+       /*
+        * store information about incoming file deletion
+        */
+       while (patch) {
+               if ((patch->new_name == NULL) || (patch->is_rename)) {
+                       struct string_list_item *item;
+                       item = string_list_insert(patch->old_name, &fn_table);
+                       item->util = PATH_TO_BE_DELETED;
+               }
+               patch = patch->next;
        }
 }
 
@@ -2304,8 +2352,8 @@ static int apply_data(struct patch *patch, struct stat *st, struct cache_entry *
        struct patch *tpatch;
 
        if (!(patch->is_copy || patch->is_rename) &&
-           ((tpatch = in_fn_table(patch->old_name)) != NULL)) {
-               if (tpatch == (struct patch *) -1) {
+           (tpatch = in_fn_table(patch->old_name)) != NULL && !to_be_deleted(tpatch)) {
+               if (was_deleted(tpatch)) {
                        return error("patch %s has been renamed/deleted",
                                patch->old_name);
                }
@@ -2399,10 +2447,9 @@ static int check_preimage(struct patch *patch, struct cache_entry **ce, struct s
        assert(patch->is_new <= 0);
 
        if (!(patch->is_copy || patch->is_rename) &&
-           (tpatch = in_fn_table(old_name)) != NULL) {
-               if (tpatch == (struct patch *) -1) {
+           (tpatch = in_fn_table(old_name)) != NULL && !to_be_deleted(tpatch)) {
+               if (was_deleted(tpatch))
                        return error("%s: has been deleted/renamed", old_name);
-               }
                st_mode = tpatch->new_mode;
        } else if (!cached) {
                stat_ret = lstat(old_name, st);
@@ -2410,6 +2457,9 @@ static int check_preimage(struct patch *patch, struct cache_entry **ce, struct s
                        return error("%s: %s", old_name, strerror(errno));
        }
 
+       if (to_be_deleted(tpatch))
+               tpatch = NULL;
+
        if (check_index && !tpatch) {
                int pos = cache_name_pos(old_name, strlen(old_name));
                if (pos < 0) {
@@ -2471,6 +2521,7 @@ static int check_patch(struct patch *patch)
        const char *new_name = patch->new_name;
        const char *name = old_name ? old_name : new_name;
        struct cache_entry *ce = NULL;
+       struct patch *tpatch;
        int ok_if_exists;
        int status;
 
@@ -2481,7 +2532,8 @@ static int check_patch(struct patch *patch)
                return status;
        old_name = patch->old_name;
 
-       if (in_fn_table(new_name) == (struct patch *) -1)
+       if ((tpatch = in_fn_table(new_name)) &&
+                       (was_deleted(tpatch) || to_be_deleted(tpatch)))
                /*
                 * A type-change diff is always split into a patch to
                 * delete old, immediately followed by a patch to
@@ -2533,6 +2585,7 @@ static int check_patch_list(struct patch *patch)
 {
        int err = 0;
 
+       prepare_fn_table(patch);
        while (patch) {
                if (apply_verbosely)
                        say_patch_name(stderr,
@@ -2561,7 +2614,7 @@ static int get_current_sha1(const char *path, unsigned char *sha1)
 static void build_fake_ancestor(struct patch *list, const char *filename)
 {
        struct patch *patch;
-       struct index_state result = { 0 };
+       struct index_state result = { NULL };
        int fd;
 
        /* Once we start supporting the reverse patch, it may be
@@ -2742,7 +2795,7 @@ static void remove_file(struct patch *patch, int rmdir_empty)
                        if (rmdir(patch->old_name))
                                warning("unable to remove submodule %s",
                                        patch->old_name);
-               } else if (!unlink(patch->old_name) && rmdir_empty) {
+               } else if (!unlink_or_warn(patch->old_name) && rmdir_empty) {
                        remove_path(patch->old_name);
                }
        }
@@ -2852,7 +2905,7 @@ static void create_one_file(char *path, unsigned mode, const char *buf, unsigned
                        if (!try_create_file(newpath, mode, buf, size)) {
                                if (!rename(newpath, path))
                                        return;
-                               unlink(newpath);
+                               unlink_or_warn(newpath);
                                break;
                        }
                        if (errno != EEXIST)
@@ -3224,9 +3277,11 @@ int cmd_apply(int argc, const char **argv, const char *unused_prefix)
                OPT_BOOLEAN(0, "stat", &diffstat,
                        "instead of applying the patch, output diffstat for the input"),
                { OPTION_BOOLEAN, 0, "allow-binary-replacement", &binary,
-                 NULL, "old option, now no-op", PARSE_OPT_HIDDEN },
+                 NULL, "old option, now no-op",
+                 PARSE_OPT_HIDDEN | PARSE_OPT_NOARG },
                { OPTION_BOOLEAN, 0, "binary", &binary,
-                 NULL, "old option, now no-op", PARSE_OPT_HIDDEN },
+                 NULL, "old option, now no-op",
+                 PARSE_OPT_HIDDEN | PARSE_OPT_NOARG },
                OPT_BOOLEAN(0, "numstat", &numstat,
                        "shows number of added and deleted lines in decimal notation"),
                OPT_BOOLEAN(0, "summary", &summary,
@@ -3239,7 +3294,7 @@ int cmd_apply(int argc, const char **argv, const char *unused_prefix)
                        "apply a patch without touching the working tree"),
                OPT_BOOLEAN(0, "apply", &force_apply,
                        "also apply the patch (use with --stat/--summary/--check)"),
-               OPT_STRING(0, "build-fake-ancestor", &fake_ancestor, "file",
+               OPT_FILENAME(0, "build-fake-ancestor", &fake_ancestor,
                        "build a temporary index based on embedded index information"),
                { OPTION_CALLBACK, 'z', NULL, NULL, NULL,
                        "paths are separated with NUL character",
@@ -3274,8 +3329,9 @@ int cmd_apply(int argc, const char **argv, const char *unused_prefix)
        if (apply_default_whitespace)
                parse_whitespace_option(apply_default_whitespace);
 
-       argc = parse_options(argc, argv, builtin_apply_options,
+       argc = parse_options(argc, argv, prefix, builtin_apply_options,
                        apply_usage, 0);
+
        if (apply_with_reject)
                apply = apply_verbosely = 1;
        if (!force_apply && (diffstat || numstat || summary || check || fake_ancestor))