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-rw-r--r--diff-lib.c33
-rw-r--r--read-cache.c3
-rwxr-xr-xt/t4027-diff-submodule.sh7
-rwxr-xr-xt/t7506-status-submodule.sh38
4 files changed, 73 insertions, 8 deletions
diff --git a/diff-lib.c b/diff-lib.c
index 9139e45..c5894c7 100644
--- a/diff-lib.c
+++ b/diff-lib.c
@@ -337,11 +337,17 @@ int run_diff_files_cmd(struct rev_info *revs, int argc, const char **argv)
}
return run_diff_files(revs, options);
}
+
/*
- * See if work tree has an entity that can be staged. Return 0 if so,
- * return 1 if not and return -1 if error.
+ * Has the work tree entity been removed?
+ *
+ * Return 1 if it was removed from the work tree, 0 if an entity to be
+ * compared with the cache entry ce still exists (the latter includes
+ * the case where a directory that is not a submodule repository
+ * exists for ce that is a submodule -- it is a submodule that is not
+ * checked out). Return negative for an error.
*/
-static int check_work_tree_entity(const struct cache_entry *ce, struct stat *st, char *symcache)
+static int check_removed(const struct cache_entry *ce, struct stat *st, char *symcache)
{
if (lstat(ce->name, st) < 0) {
if (errno != ENOENT && errno != ENOTDIR)
@@ -352,7 +358,20 @@ static int check_work_tree_entity(const struct cache_entry *ce, struct stat *st,
return 1;
if (S_ISDIR(st->st_mode)) {
unsigned char sub[20];
- if (resolve_gitlink_ref(ce->name, "HEAD", sub))
+
+ /*
+ * If ce is already a gitlink, we can have a plain
+ * directory (i.e. the submodule is not checked out),
+ * or a checked out submodule. Either case this is not
+ * a case where something was removed from the work tree,
+ * so we will return 0.
+ *
+ * Otherwise, if the directory is not a submodule
+ * repository, that means ce which was a blob turned into
+ * a directory --- the blob was removed!
+ */
+ if (!S_ISGITLINK(ce->ce_mode) &&
+ resolve_gitlink_ref(ce->name, "HEAD", sub))
return 1;
}
return 0;
@@ -402,7 +421,7 @@ int run_diff_files(struct rev_info *revs, unsigned int option)
memset(&(dpath->parent[0]), 0,
sizeof(struct combine_diff_parent)*5);
- changed = check_work_tree_entity(ce, &st, symcache);
+ changed = check_removed(ce, &st, symcache);
if (!changed)
dpath->mode = ce_mode_from_stat(ce, st.st_mode);
else {
@@ -466,7 +485,7 @@ int run_diff_files(struct rev_info *revs, unsigned int option)
if (ce_uptodate(ce))
continue;
- changed = check_work_tree_entity(ce, &st, symcache);
+ changed = check_removed(ce, &st, symcache);
if (changed) {
if (changed < 0) {
perror(ce->name);
@@ -527,7 +546,7 @@ static int get_stat_data(struct cache_entry *ce,
if (!cached) {
int changed;
struct stat st;
- changed = check_work_tree_entity(ce, &st, cbdata->symcache);
+ changed = check_removed(ce, &st, cbdata->symcache);
if (changed < 0)
return -1;
else if (changed) {
diff --git a/read-cache.c b/read-cache.c
index 3b20a14..4525f8a 100644
--- a/read-cache.c
+++ b/read-cache.c
@@ -198,7 +198,8 @@ static int ce_match_stat_basic(struct cache_entry *ce, struct stat *st)
static int is_racy_timestamp(const struct index_state *istate, struct cache_entry *ce)
{
- return (istate->timestamp &&
+ return (!S_ISGITLINK(ce->ce_mode) &&
+ istate->timestamp &&
((unsigned int)istate->timestamp) <= ce->ce_mtime);
}
diff --git a/t/t4027-diff-submodule.sh b/t/t4027-diff-submodule.sh
index 1fd3fb7..ba6679c 100755
--- a/t/t4027-diff-submodule.sh
+++ b/t/t4027-diff-submodule.sh
@@ -50,4 +50,11 @@ test_expect_success 'git diff-files --raw' '
test_cmp expect actual.files
'
+test_expect_success 'git diff (empty submodule dir)' '
+ : >empty &&
+ rm -rf sub/* sub/.git &&
+ git diff > actual.empty &&
+ test_cmp empty actual.empty
+'
+
test_done
diff --git a/t/t7506-status-submodule.sh b/t/t7506-status-submodule.sh
new file mode 100755
index 0000000..a75130c
--- /dev/null
+++ b/t/t7506-status-submodule.sh
@@ -0,0 +1,38 @@
+#!/bin/sh
+
+test_description='git-status for submodule'
+
+. ./test-lib.sh
+
+test_expect_success 'setup' '
+ test_create_repo sub
+ cd sub &&
+ : >bar &&
+ git add bar &&
+ git commit -m " Add bar" &&
+ cd .. &&
+ git add sub &&
+ git commit -m "Add submodule sub"
+'
+
+test_expect_success 'status clean' '
+ git status |
+ grep "nothing to commit"
+'
+test_expect_success 'status -a clean' '
+ git status -a |
+ grep "nothing to commit"
+'
+test_expect_success 'rm submodule contents' '
+ rm -rf sub/* sub/.git
+'
+test_expect_success 'status clean (empty submodule dir)' '
+ git status |
+ grep "nothing to commit"
+'
+test_expect_success 'status -a clean (empty submodule dir)' '
+ git status -a |
+ grep "nothing to commit"
+'
+
+test_done