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-rw-r--r--dir.c93
1 files changed, 74 insertions, 19 deletions
diff --git a/dir.c b/dir.c
index c00c7e2b73..118ba59a27 100644
--- a/dir.c
+++ b/dir.c
@@ -1297,7 +1297,7 @@ static enum exist_status directory_exists_in_index(const char *dirname, int len)
*/
static enum path_treatment treat_directory(struct dir_struct *dir,
struct untracked_cache_dir *untracked,
- const char *dirname, int len, int exclude,
+ const char *dirname, int len, int baselen, int exclude,
const struct path_simplify *simplify)
{
/* The "len-1" is to strip the final '/' */
@@ -1324,7 +1324,8 @@ static enum path_treatment treat_directory(struct dir_struct *dir,
if (!(dir->flags & DIR_HIDE_EMPTY_DIRECTORIES))
return exclude ? path_excluded : path_untracked;
- untracked = lookup_untracked(dir->untracked, untracked, dirname, len);
+ untracked = lookup_untracked(dir->untracked, untracked,
+ dirname + baselen, len - baselen);
return read_directory_recursive(dir, dirname, len,
untracked, 1, simplify);
}
@@ -1444,6 +1445,7 @@ static int get_dtype(struct dirent *de, const char *path, int len)
static enum path_treatment treat_one_path(struct dir_struct *dir,
struct untracked_cache_dir *untracked,
struct strbuf *path,
+ int baselen,
const struct path_simplify *simplify,
int dtype, struct dirent *de)
{
@@ -1495,8 +1497,8 @@ static enum path_treatment treat_one_path(struct dir_struct *dir,
return path_none;
case DT_DIR:
strbuf_addch(path, '/');
- return treat_directory(dir, untracked, path->buf, path->len, exclude,
- simplify);
+ return treat_directory(dir, untracked, path->buf, path->len,
+ baselen, exclude, simplify);
case DT_REG:
case DT_LNK:
return exclude ? path_excluded : path_untracked;
@@ -1557,7 +1559,7 @@ static enum path_treatment treat_path(struct dir_struct *dir,
return path_none;
dtype = DTYPE(de);
- return treat_one_path(dir, untracked, path, simplify, dtype, de);
+ return treat_one_path(dir, untracked, path, baselen, simplify, dtype, de);
}
static void add_untracked(struct untracked_cache_dir *dir, const char *name)
@@ -1827,7 +1829,7 @@ static int treat_leading_path(struct dir_struct *dir,
break;
if (simplify_away(sb.buf, sb.len, simplify))
break;
- if (treat_one_path(dir, NULL, &sb, simplify,
+ if (treat_one_path(dir, NULL, &sb, baselen, simplify,
DT_DIR, NULL) == path_none)
break; /* do not recurse into it */
if (len <= baselen) {
@@ -2028,6 +2030,15 @@ int file_exists(const char *f)
return lstat(f, &sb) == 0;
}
+static int cmp_icase(char a, char b)
+{
+ if (a == b)
+ return 0;
+ if (ignore_case)
+ return toupper(a) - toupper(b);
+ return a - b;
+}
+
/*
* Given two normalized paths (a trailing slash is ok), if subdir is
* outside dir, return -1. Otherwise return the offset in subdir that
@@ -2039,7 +2050,7 @@ int dir_inside_of(const char *subdir, const char *dir)
assert(dir && subdir && *dir && *subdir);
- while (*dir && *subdir && *dir == *subdir) {
+ while (*dir && *subdir && !cmp_icase(*dir, *subdir)) {
dir++;
subdir++;
offset++;
@@ -2616,23 +2627,67 @@ done2:
return uc;
}
+static void invalidate_one_directory(struct untracked_cache *uc,
+ struct untracked_cache_dir *ucd)
+{
+ uc->dir_invalidated++;
+ ucd->valid = 0;
+ ucd->untracked_nr = 0;
+}
+
+/*
+ * Normally when an entry is added or removed from a directory,
+ * invalidating that directory is enough. No need to touch its
+ * ancestors. When a directory is shown as "foo/bar/" in git-status
+ * however, deleting or adding an entry may have cascading effect.
+ *
+ * Say the "foo/bar/file" has become untracked, we need to tell the
+ * untracked_cache_dir of "foo" that "bar/" is not an untracked
+ * directory any more (because "bar" is managed by foo as an untracked
+ * "file").
+ *
+ * Similarly, if "foo/bar/file" moves from untracked to tracked and it
+ * was the last untracked entry in the entire "foo", we should show
+ * "foo/" instead. Which means we have to invalidate past "bar" up to
+ * "foo".
+ *
+ * This function traverses all directories from root to leaf. If there
+ * is a chance of one of the above cases happening, we invalidate back
+ * to root. Otherwise we just invalidate the leaf. There may be a more
+ * sophisticated way than checking for SHOW_OTHER_DIRECTORIES to
+ * detect these cases and avoid unnecessary invalidation, for example,
+ * checking for the untracked entry named "bar/" in "foo", but for now
+ * stick to something safe and simple.
+ */
+static int invalidate_one_component(struct untracked_cache *uc,
+ struct untracked_cache_dir *dir,
+ const char *path, int len)
+{
+ const char *rest = strchr(path, '/');
+
+ if (rest) {
+ int component_len = rest - path;
+ struct untracked_cache_dir *d =
+ lookup_untracked(uc, dir, path, component_len);
+ int ret =
+ invalidate_one_component(uc, d, rest + 1,
+ len - (component_len + 1));
+ if (ret)
+ invalidate_one_directory(uc, dir);
+ return ret;
+ }
+
+ invalidate_one_directory(uc, dir);
+ return uc->dir_flags & DIR_SHOW_OTHER_DIRECTORIES;
+}
+
void untracked_cache_invalidate_path(struct index_state *istate,
const char *path)
{
- const char *sep;
- struct untracked_cache_dir *d;
if (!istate->untracked || !istate->untracked->root)
return;
- sep = strrchr(path, '/');
- if (sep)
- d = lookup_untracked(istate->untracked,
- istate->untracked->root,
- path, sep - path);
- else
- d = istate->untracked->root;
- istate->untracked->dir_invalidated++;
- d->valid = 0;
- d->untracked_nr = 0;
+ invalidate_one_component(istate->untracked, istate->untracked->root,
+ path, strlen(path));
}
void untracked_cache_remove_from_index(struct index_state *istate,