]> git.ipfire.org Git - thirdparty/git.git/blobdiff - pathspec.c
l10n: bg.po: Updated Bulgarian translation (5482t)
[thirdparty/git.git] / pathspec.c
index 84ad9c73cfb50a9fd34eed3b5e68fae522c796fe..46e77a85fee9d86e6e16e9f466ecfc3db893fd16 100644 (file)
@@ -759,3 +759,92 @@ int match_pathspec_attrs(struct index_state *istate,
 
        return 1;
 }
+
+int pathspec_needs_expanded_index(struct index_state *istate,
+                                 const struct pathspec *pathspec)
+{
+       unsigned int i, pos;
+       int res = 0;
+       char *skip_worktree_seen = NULL;
+
+       /*
+        * If index is not sparse, no index expansion is needed.
+        */
+       if (!istate->sparse_index)
+               return 0;
+
+       /*
+        * When using a magic pathspec, assume for the sake of simplicity that
+        * the index needs to be expanded to match all matchable files.
+        */
+       if (pathspec->magic)
+               return 1;
+
+       for (i = 0; i < pathspec->nr; i++) {
+               struct pathspec_item item = pathspec->items[i];
+
+               /*
+                * If the pathspec item has a wildcard, the index should be expanded
+                * if the pathspec has the possibility of matching a subset of entries inside
+                * of a sparse directory (but not the entire directory).
+                *
+                * If the pathspec item is a literal path, the index only needs to be expanded
+                * if a) the pathspec isn't in the sparse checkout cone (to make sure we don't
+                * expand for in-cone files) and b) it doesn't match any sparse directories
+                * (since we can reset whole sparse directories without expanding them).
+                */
+               if (item.nowildcard_len < item.len) {
+                       /*
+                        * Special case: if the pattern is a path inside the cone
+                        * followed by only wildcards, the pattern cannot match
+                        * partial sparse directories, so we know we don't need to
+                        * expand the index.
+                        *
+                        * Examples:
+                        * - in-cone/foo***: doesn't need expanded index
+                        * - not-in-cone/bar*: may need expanded index
+                        * - **.c: may need expanded index
+                        */
+                       if (strspn(item.original + item.nowildcard_len, "*") == item.len - item.nowildcard_len &&
+                           path_in_cone_mode_sparse_checkout(item.original, istate))
+                               continue;
+
+                       for (pos = 0; pos < istate->cache_nr; pos++) {
+                               struct cache_entry *ce = istate->cache[pos];
+
+                               if (!S_ISSPARSEDIR(ce->ce_mode))
+                                       continue;
+
+                               /*
+                                * If the pre-wildcard length is longer than the sparse
+                                * directory name and the sparse directory is the first
+                                * component of the pathspec, need to expand the index.
+                                */
+                               if (item.nowildcard_len > ce_namelen(ce) &&
+                                   !strncmp(item.original, ce->name, ce_namelen(ce))) {
+                                       res = 1;
+                                       break;
+                               }
+
+                               /*
+                                * If the pre-wildcard length is shorter than the sparse
+                                * directory and the pathspec does not match the whole
+                                * directory, need to expand the index.
+                                */
+                               if (!strncmp(item.original, ce->name, item.nowildcard_len) &&
+                                   wildmatch(item.original, ce->name, 0)) {
+                                       res = 1;
+                                       break;
+                               }
+                       }
+               } else if (!path_in_cone_mode_sparse_checkout(item.original, istate) &&
+                          !matches_skip_worktree(pathspec, i, &skip_worktree_seen))
+                       res = 1;
+
+               if (res > 0)
+                       break;
+       }
+
+       free(skip_worktree_seen);
+       return res;
+}