lock_ref_for_update(): avoid a symref resolution

diff --git a/dir.h b/dir.h
index cd46f30017ce239720926afdad4301b2ac402ccf..5f19acc272643d3de0b78ec1d4fada97b53e54f1 100644 (file)
--- a/dir.h
+++ b/dir.h
@@ -27,7 +27,7 @@ struct exclude {
        int nowildcardlen;
        const char *base;
        int baselen;
-       int flags;
+       unsigned flags;         /* EXC_FLAG_* */
 
        /*
         * Counting starts from 1 for line numbers in ignore files,
@@ -226,10 +226,10 @@ struct dir_entry *dir_add_ignored(struct dir_struct *dir, const char *pathname,
  * attr.c:path_matches()
  */
 extern int match_basename(const char *, int,
-                         const char *, int, int, int);
+                         const char *, int, int, unsigned);
 extern int match_pathname(const char *, int,
                          const char *, int,
-                         const char *, int, int, int);
+                         const char *, int, int, unsigned);
 
 extern struct exclude *last_exclude_matching(struct dir_struct *dir,
                                             const char *name, int *dtype);
@@ -241,7 +241,7 @@ extern struct exclude_list *add_exclude_list(struct dir_struct *dir,
 extern int add_excludes_from_file_to_list(const char *fname, const char *base, int baselen,
                                          struct exclude_list *el, int check_index);
 extern void add_excludes_from_file(struct dir_struct *, const char *fname);
-extern void parse_exclude_pattern(const char **string, int *patternlen, int *flags, int *nowildcardlen);
+extern void parse_exclude_pattern(const char **string, int *patternlen, unsigned *flags, int *nowildcardlen);
 extern void add_exclude(const char *string, const char *base,
                        int baselen, struct exclude_list *el, int srcpos);
 extern void clear_exclude_list(struct exclude_list *el);
@@ -262,9 +262,32 @@ extern int is_empty_dir(const char *dir);
 
 extern void setup_standard_excludes(struct dir_struct *dir);
 
+
+/* Constants for remove_dir_recursively: */
+
+/*
+ * If a non-directory is found within path, stop and return an error.
+ * (In this case some empty directories might already have been
+ * removed.)
+ */
 #define REMOVE_DIR_EMPTY_ONLY 01
+
+/*
+ * If any Git work trees are found within path, skip them without
+ * considering it an error.
+ */
 #define REMOVE_DIR_KEEP_NESTED_GIT 02
+
+/* Remove the contents of path, but leave path itself. */
 #define REMOVE_DIR_KEEP_TOPLEVEL 04
+
+/*
+ * Remove path and its contents, recursively. flags is a combination
+ * of the above REMOVE_DIR_* constants. Return 0 on success.
+ *
+ * This function uses path as temporary scratch space, but restores it
+ * before returning.
+ */
 extern int remove_dir_recursively(struct strbuf *path, int flag);
 
 /* tries to remove the path with empty directories along it, ignores ENOENT */