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-rw-r--r--unpack-trees.c104
1 files changed, 83 insertions, 21 deletions
diff --git a/unpack-trees.c b/unpack-trees.c
index 515c374..55f864a 100644
--- a/unpack-trees.c
+++ b/unpack-trees.c
@@ -336,6 +336,46 @@ static struct progress *get_progress(struct unpack_trees_options *o)
return start_delayed_progress(_("Checking out files"), total);
}
+static void setup_collided_checkout_detection(struct checkout *state,
+ struct index_state *index)
+{
+ int i;
+
+ state->clone = 1;
+ for (i = 0; i < index->cache_nr; i++)
+ index->cache[i]->ce_flags &= ~CE_MATCHED;
+}
+
+static void report_collided_checkout(struct index_state *index)
+{
+ struct string_list list = STRING_LIST_INIT_NODUP;
+ int i;
+
+ for (i = 0; i < index->cache_nr; i++) {
+ struct cache_entry *ce = index->cache[i];
+
+ if (!(ce->ce_flags & CE_MATCHED))
+ continue;
+
+ string_list_append(&list, ce->name);
+ ce->ce_flags &= ~CE_MATCHED;
+ }
+
+ list.cmp = fspathcmp;
+ string_list_sort(&list);
+
+ if (list.nr) {
+ warning(_("the following paths have collided (e.g. case-sensitive paths\n"
+ "on a case-insensitive filesystem) and only one from the same\n"
+ "colliding group is in the working tree:\n"));
+
+ for (i = 0; i < list.nr; i++)
+ fprintf(stderr, " '%s'\n", list.items[i].string);
+ }
+
+ string_list_clear(&list, 0);
+}
+
static int check_updates(struct unpack_trees_options *o)
{
unsigned cnt = 0;
@@ -351,10 +391,13 @@ static int check_updates(struct unpack_trees_options *o)
state.refresh_cache = 1;
state.istate = index;
+ if (o->clone)
+ setup_collided_checkout_detection(&state, index);
+
progress = get_progress(o);
if (o->update)
- git_attr_set_direction(GIT_ATTR_CHECKOUT, index);
+ git_attr_set_direction(GIT_ATTR_CHECKOUT);
if (should_update_submodules() && o->update && !o->dry_run)
load_gitmodules_file(index, NULL);
@@ -414,7 +457,11 @@ static int check_updates(struct unpack_trees_options *o)
stop_progress(&progress);
errs |= finish_delayed_checkout(&state);
if (o->update)
- git_attr_set_direction(GIT_ATTR_CHECKIN, NULL);
+ git_attr_set_direction(GIT_ATTR_CHECKIN);
+
+ if (o->clone)
+ report_collided_checkout(index);
+
trace_performance_leave("check_updates");
return errs != 0;
}
@@ -1232,13 +1279,15 @@ static int unpack_callback(int n, unsigned long mask, unsigned long dirmask, str
return mask;
}
-static int clear_ce_flags_1(struct cache_entry **cache, int nr,
+static int clear_ce_flags_1(struct index_state *istate,
+ struct cache_entry **cache, int nr,
struct strbuf *prefix,
int select_mask, int clear_mask,
struct exclude_list *el, int defval);
/* Whole directory matching */
-static int clear_ce_flags_dir(struct cache_entry **cache, int nr,
+static int clear_ce_flags_dir(struct index_state *istate,
+ struct cache_entry **cache, int nr,
struct strbuf *prefix,
char *basename,
int select_mask, int clear_mask,
@@ -1247,7 +1296,7 @@ static int clear_ce_flags_dir(struct cache_entry **cache, int nr,
struct cache_entry **cache_end;
int dtype = DT_DIR;
int ret = is_excluded_from_list(prefix->buf, prefix->len,
- basename, &dtype, el, &the_index);
+ basename, &dtype, el, istate);
int rc;
strbuf_addch(prefix, '/');
@@ -1269,7 +1318,7 @@ static int clear_ce_flags_dir(struct cache_entry **cache, int nr,
* calling clear_ce_flags_1(). That function will call
* the expensive is_excluded_from_list() on every entry.
*/
- rc = clear_ce_flags_1(cache, cache_end - cache,
+ rc = clear_ce_flags_1(istate, cache, cache_end - cache,
prefix,
select_mask, clear_mask,
el, ret);
@@ -1292,7 +1341,8 @@ static int clear_ce_flags_dir(struct cache_entry **cache, int nr,
* 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,
+static int clear_ce_flags_1(struct index_state *istate,
+ struct cache_entry **cache, int nr,
struct strbuf *prefix,
int select_mask, int clear_mask,
struct exclude_list *el, int defval)
@@ -1326,7 +1376,7 @@ static int clear_ce_flags_1(struct cache_entry **cache, int nr,
len = slash - name;
strbuf_add(prefix, name, len);
- processed = clear_ce_flags_dir(cache, cache_end - cache,
+ processed = clear_ce_flags_dir(istate, cache, cache_end - cache,
prefix,
prefix->buf + prefix->len - len,
select_mask, clear_mask,
@@ -1340,7 +1390,7 @@ static int clear_ce_flags_1(struct cache_entry **cache, int nr,
}
strbuf_addch(prefix, '/');
- cache += clear_ce_flags_1(cache, cache_end - cache,
+ cache += clear_ce_flags_1(istate, cache, cache_end - cache,
prefix,
select_mask, clear_mask, el, defval);
strbuf_setlen(prefix, prefix->len - len - 1);
@@ -1350,7 +1400,7 @@ static int clear_ce_flags_1(struct cache_entry **cache, int nr,
/* Non-directory */
dtype = ce_to_dtype(ce);
ret = is_excluded_from_list(ce->name, ce_namelen(ce),
- name, &dtype, el, &the_index);
+ name, &dtype, el, istate);
if (ret < 0)
ret = defval;
if (ret > 0)
@@ -1360,15 +1410,17 @@ static int clear_ce_flags_1(struct cache_entry **cache, int nr,
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)
+static int clear_ce_flags(struct index_state *istate,
+ int select_mask, int clear_mask,
+ struct exclude_list *el)
{
static struct strbuf prefix = STRBUF_INIT;
strbuf_reset(&prefix);
- return clear_ce_flags_1(cache, nr,
+ return clear_ce_flags_1(istate,
+ istate->cache,
+ istate->cache_nr,
&prefix,
select_mask, clear_mask,
el, 0);
@@ -1378,7 +1430,7 @@ static int clear_ce_flags(struct cache_entry **cache, int nr,
* Set/Clear CE_NEW_SKIP_WORKTREE according to $GIT_DIR/info/sparse-checkout
*/
static void mark_new_skip_worktree(struct exclude_list *el,
- struct index_state *the_index,
+ struct index_state *istate,
int select_flag, int skip_wt_flag)
{
int i;
@@ -1387,8 +1439,8 @@ static void mark_new_skip_worktree(struct exclude_list *el,
* 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];
+ for (i = 0; i < istate->cache_nr; i++) {
+ struct cache_entry *ce = istate->cache[i];
if (select_flag && !(ce->ce_flags & select_flag))
continue;
@@ -1403,8 +1455,7 @@ static void mark_new_skip_worktree(struct exclude_list *el,
* 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);
+ clear_ce_flags(istate, select_flag, skip_wt_flag, el);
}
static int verify_absent(const struct cache_entry *,
@@ -1699,6 +1750,17 @@ static int verify_uptodate_sparse(const struct cache_entry *ce,
return verify_uptodate_1(ce, o, ERROR_SPARSE_NOT_UPTODATE_FILE);
}
+/*
+ * TODO: We should actually invalidate o->result, not src_index [1].
+ * But since cache tree and untracked cache both are not copied to
+ * o->result until unpacking is complete, we invalidate them on
+ * src_index instead with the assumption that they will be copied to
+ * dst_index at the end.
+ *
+ * [1] src_index->cache_tree is also used in unpack_callback() so if
+ * we invalidate o->result, we need to update it to use
+ * o->result.cache_tree as well.
+ */
static void invalidate_ce_path(const struct cache_entry *ce,
struct unpack_trees_options *o)
{
@@ -1791,7 +1853,7 @@ static int verify_clean_subdirectory(const struct cache_entry *ce,
memset(&d, 0, sizeof(d));
if (o->dir)
d.exclude_per_dir = o->dir->exclude_per_dir;
- i = read_directory(&d, &the_index, pathbuf, namelen+1, NULL);
+ i = read_directory(&d, o->src_index, pathbuf, namelen+1, NULL);
if (i)
return o->gently ? -1 :
add_rejected_path(o, ERROR_NOT_UPTODATE_DIR, ce->name);
@@ -1833,7 +1895,7 @@ static int check_ok_to_remove(const char *name, int len, int dtype,
return 0;
if (o->dir &&
- is_excluded(o->dir, &the_index, name, &dtype))
+ is_excluded(o->dir, o->src_index, name, &dtype))
/*
* ce->name is explicitly excluded, so it is Ok to
* overwrite it.
generated by cgit v0.10.2-6-g49f6 at 2024-05-20 23:06:41 (GMT)