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-rw-r--r--builtin/reset.c113
1 files changed, 107 insertions, 6 deletions
diff --git a/builtin/reset.c b/builtin/reset.c
index 7393595..b1ff699 100644
--- a/builtin/reset.c
+++ b/builtin/reset.c
@@ -25,6 +25,7 @@
#include "cache-tree.h"
#include "submodule.h"
#include "submodule-config.h"
+#include "dir.h"
#define REFRESH_INDEX_DELAY_WARNING_IN_MS (2 * 1000)
@@ -136,21 +137,36 @@ static void update_index_from_diff(struct diff_queue_struct *q,
int intent_to_add = *(int *)data;
for (i = 0; i < q->nr; i++) {
+ int pos;
struct diff_filespec *one = q->queue[i]->one;
- int is_missing = !(one->mode && !is_null_oid(&one->oid));
+ int is_in_reset_tree = one->mode && !is_null_oid(&one->oid);
struct cache_entry *ce;
- if (is_missing && !intent_to_add) {
+ if (!is_in_reset_tree && !intent_to_add) {
remove_file_from_cache(one->path);
continue;
}
ce = make_cache_entry(&the_index, one->mode, &one->oid, one->path,
0, 0);
+
+ /*
+ * If the file 1) corresponds to an existing index entry with
+ * skip-worktree set, or 2) does not exist in the index but is
+ * outside the sparse checkout definition, add a skip-worktree bit
+ * to the new index entry. Note that a sparse index will be expanded
+ * if this entry is outside the sparse cone - this is necessary
+ * to properly construct the reset sparse directory.
+ */
+ pos = cache_name_pos(one->path, strlen(one->path));
+ if ((pos >= 0 && ce_skip_worktree(active_cache[pos])) ||
+ (pos < 0 && !path_in_sparse_checkout(one->path, &the_index)))
+ ce->ce_flags |= CE_SKIP_WORKTREE;
+
if (!ce)
die(_("make_cache_entry failed for path '%s'"),
one->path);
- if (is_missing) {
+ if (!is_in_reset_tree) {
ce->ce_flags |= CE_INTENT_TO_ADD;
set_object_name_for_intent_to_add_entry(ce);
}
@@ -158,6 +174,82 @@ static void update_index_from_diff(struct diff_queue_struct *q,
}
}
+static int pathspec_needs_expanded_index(const struct pathspec *pathspec)
+{
+ unsigned int i, pos;
+ int res = 0;
+ char *skip_worktree_seen = NULL;
+
+ /*
+ * 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 don't expand the index.
+ */
+ if (path_in_cone_mode_sparse_checkout(item.original, &the_index) &&
+ strspn(item.original + item.nowildcard_len, "*") == item.len - item.nowildcard_len)
+ continue;
+
+ for (pos = 0; pos < active_nr; pos++) {
+ struct cache_entry *ce = active_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, &the_index) &&
+ !matches_skip_worktree(pathspec, i, &skip_worktree_seen))
+ res = 1;
+
+ if (res > 0)
+ break;
+ }
+
+ free(skip_worktree_seen);
+ return res;
+}
+
static int read_from_tree(const struct pathspec *pathspec,
struct object_id *tree_oid,
int intent_to_add)
@@ -170,7 +262,13 @@ static int read_from_tree(const struct pathspec *pathspec,
opt.format_callback = update_index_from_diff;
opt.format_callback_data = &intent_to_add;
opt.flags.override_submodule_config = 1;
+ opt.flags.recursive = 1;
opt.repo = the_repository;
+ opt.change = diff_change;
+ opt.add_remove = diff_addremove;
+
+ if (pathspec->nr && the_index.sparse_index && pathspec_needs_expanded_index(pathspec))
+ ensure_full_index(&the_index);
if (do_diff_cache(tree_oid, &opt))
return 1;
@@ -249,9 +347,6 @@ static void parse_args(struct pathspec *pathspec,
}
*rev_ret = rev;
- if (read_cache() < 0)
- die(_("index file corrupt"));
-
parse_pathspec(pathspec, 0,
PATHSPEC_PREFER_FULL |
(patch_mode ? PATHSPEC_PREFIX_ORIGIN : 0),
@@ -397,6 +492,12 @@ int cmd_reset(int argc, const char **argv, const char *prefix)
if (intent_to_add && reset_type != MIXED)
die(_("-N can only be used with --mixed"));
+ prepare_repo_settings(the_repository);
+ the_repository->settings.command_requires_full_index = 0;
+
+ if (read_cache() < 0)
+ die(_("index file corrupt"));
+
/* Soft reset does not touch the index file nor the working tree
* at all, but requires them in a good order. Other resets reset
* the index file to the tree object we are switching to. */