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diff --git a/unpack-trees.c b/unpack-trees.c
index a6518db60d13079f2c41d3b26b22b796f7da1565..93ffc89cf369339fc242ad9bf6abccdebe46da83 100644 (file)
--- a/unpack-trees.c
+++ b/unpack-trees.c
static int verify_uptodate_sparse(struct cache_entry *ce, struct unpack_trees_options *o);
static int verify_absent_sparse(struct cache_entry *ce, enum unpack_trees_error_types, struct unpack_trees_options *o);
-static int will_have_skip_worktree(const struct cache_entry *ce, struct unpack_trees_options *o)
-{
- const char *basename;
-
- basename = strrchr(ce->name, '/');
- basename = basename ? basename+1 : ce->name;
- return excluded_from_list(ce->name, ce_namelen(ce), basename, NULL, o->el) <= 0;
-}
-
static int apply_sparse_checkout(struct cache_entry *ce, struct unpack_trees_options *o)
{
int was_skip_worktree = ce_skip_worktree(ce);
@@ -834,6 +825,138 @@ static int unpack_callback(int n, unsigned long mask, unsigned long dirmask, str
return mask;
}
+/* Whole directory matching */
+static int clear_ce_flags_dir(struct cache_entry **cache, int nr,
+ char *prefix, int prefix_len,
+ char *basename,
+ int select_mask, int clear_mask,
+ struct exclude_list *el)
+{
+ struct cache_entry **cache_end = cache + nr;
+ int dtype = DT_DIR;
+ int ret = excluded_from_list(prefix, prefix_len, basename, &dtype, el);
+
+ prefix[prefix_len++] = '/';
+
+ /* included, no clearing for any entries under this directory */
+ if (!ret) {
+ for (; cache != cache_end; cache++) {
+ struct cache_entry *ce = *cache;
+ if (strncmp(ce->name, prefix, prefix_len))
+ break;
+ }
+ return nr - (cache_end - cache);
+ }
+
+ /* excluded, clear all selected entries under this directory. */
+ if (ret == 1) {
+ for (; cache != cache_end; cache++) {
+ struct cache_entry *ce = *cache;
+ if (select_mask && !(ce->ce_flags & select_mask))
+ continue;
+ if (strncmp(ce->name, prefix, prefix_len))
+ break;
+ ce->ce_flags &= ~clear_mask;
+ }
+ return nr - (cache_end - cache);
+ }
+
+ return 0;
+}
+
+/*
+ * Traverse the index, find every entry that matches according to
+ * o->el. Do "ce_flags &= ~clear_mask" on those entries. Return the
+ * number of traversed entries.
+ *
+ * If select_mask is non-zero, only entries whose ce_flags has on of
+ * those bits enabled are traversed.
+ *
+ * cache : pointer to an index entry
+ * prefix_len : an offset to its path
+ *
+ * The current path ("prefix") including the trailing '/' is
+ * cache[0]->name[0..(prefix_len-1)]
+ * Top level path has prefix_len zero.
+ */
+static int clear_ce_flags_1(struct cache_entry **cache, int nr,
+ char *prefix, int prefix_len,
+ int select_mask, int clear_mask,
+ struct exclude_list *el)
+{
+ struct cache_entry **cache_end = cache + nr;
+
+ /*
+ * Process all entries that have the given prefix and meet
+ * select_mask condition
+ */
+ while(cache != cache_end) {
+ struct cache_entry *ce = *cache;
+ const char *name, *slash;
+ int len, dtype;
+
+ if (select_mask && !(ce->ce_flags & select_mask)) {
+ cache++;
+ continue;
+ }
+
+ if (prefix_len && strncmp(ce->name, prefix, prefix_len))
+ break;
+
+ name = ce->name + prefix_len;
+ slash = strchr(name, '/');
+
+ /* If it's a directory, try whole directory match first */
+ if (slash) {
+ int processed;
+
+ len = slash - name;
+ memcpy(prefix + prefix_len, name, len);
+
+ /*
+ * terminate the string (no trailing slash),
+ * clear_c_f_dir needs it
+ */
+ prefix[prefix_len + len] = '\0';
+ processed = clear_ce_flags_dir(cache, cache_end - cache,
+ prefix, prefix_len + len,
+ prefix + prefix_len,
+ select_mask, clear_mask,
+ el);
+
+ /* clear_c_f_dir eats a whole dir already? */
+ if (processed) {
+ cache += processed;
+ continue;
+ }
+
+ prefix[prefix_len + len++] = '/';
+ cache += clear_ce_flags_1(cache, cache_end - cache,
+ prefix, prefix_len + len,
+ select_mask, clear_mask, el);
+ continue;
+ }
+
+ /* Non-directory */
+ dtype = ce_to_dtype(ce);
+ if (excluded_from_list(ce->name, ce_namelen(ce), name, &dtype, el) > 0)
+ ce->ce_flags &= ~clear_mask;
+ cache++;
+ }
+ return nr - (cache_end - cache);
+}
+
+static int clear_ce_flags(struct cache_entry **cache, int nr,
+ int select_mask, int clear_mask,
+ struct exclude_list *el)
+{
+ char prefix[PATH_MAX];
+ return clear_ce_flags_1(cache, nr,
+ prefix, 0,
+ select_mask, clear_mask,
+ el);
+}
+
/*
* Set/Clear CE_NEW_SKIP_WORKTREE according to $GIT_DIR/info/sparse-checkout
*/
{
int i;
+ /*
+ * 1. Pretend the narrowest worktree: only unmerged entries
+ * are checked out
+ */
for (i = 0; i < the_index->cache_nr; i++) {
struct cache_entry *ce = the_index->cache[i];
if (select_flag && !(ce->ce_flags & select_flag))
continue;
- if (!ce_stage(ce) && will_have_skip_worktree(ce, o))
+ if (!ce_stage(ce))
ce->ce_flags |= skip_wt_flag;
else
ce->ce_flags &= ~skip_wt_flag;
}
+
+ /*
+ * 2. Widen worktree according to sparse-checkout file.
+ * Matched entries will have skip_wt_flag cleared (i.e. "in")
+ */
+ clear_ce_flags(the_index->cache, the_index->cache_nr,
+ select_flag, skip_wt_flag, el);
}
static int verify_absent(struct cache_entry *, enum unpack_trees_error_types, struct unpack_trees_options *);