Merge branch 'kn/tag-doc-fix'

diff --git a/builtin/clean.c b/builtin/clean.c
index 6dcb72e64484fa5082bd2b77b370107984373340..df53def63f29e295e09261b9bd56960cf27582b1 100644 (file)
--- a/builtin/clean.c
+++ b/builtin/clean.c
@@ -10,7 +10,6 @@
 #include "cache.h"
 #include "dir.h"
 #include "parse-options.h"
-#include "refs.h"
 #include "string-list.h"
 #include "quote.h"
 #include "column.h"
@@ -148,6 +147,31 @@ static int exclude_cb(const struct option *opt, const char *arg, int unset)
        return 0;
 }
 
+/*
+ * Return 1 if the given path is the root of a git repository or
+ * submodule else 0. Will not return 1 for bare repositories with the
+ * exception of creating a bare repository in "foo/.git" and calling
+ * is_git_repository("foo").
+ */
+static int is_git_repository(struct strbuf *path)
+{
+       int ret = 0;
+       int gitfile_error;
+       size_t orig_path_len = path->len;
+       assert(orig_path_len != 0);
+       if (path->buf[orig_path_len - 1] != '/')
+               strbuf_addch(path, '/');
+       strbuf_addstr(path, ".git");
+       if (read_gitfile_gently(path->buf, &gitfile_error) || is_git_directory(path->buf))
+               ret = 1;
+       if (gitfile_error == READ_GITFILE_ERR_OPEN_FAILED ||
+           gitfile_error == READ_GITFILE_ERR_READ_FAILED)
+               ret = 1;  /* This could be a real .git file, take the
+                          * safe option and avoid cleaning */
+       strbuf_setlen(path, orig_path_len);
+       return ret;
+}
+
 static int remove_dirs(struct strbuf *path, const char *prefix, int force_flag,
                int dry_run, int quiet, int *dir_gone)
 {
@@ -155,13 +179,11 @@ static int remove_dirs(struct strbuf *path, const char *prefix, int force_flag,
        struct strbuf quoted = STRBUF_INIT;
        struct dirent *e;
        int res = 0, ret = 0, gone = 1, original_len = path->len, len;
-       unsigned char submodule_head[20];
        struct string_list dels = STRING_LIST_INIT_DUP;
 
        *dir_gone = 1;
 
-       if ((force_flag & REMOVE_DIR_KEEP_NESTED_GIT) &&
-                       !resolve_gitlink_ref(path->buf, "HEAD", submodule_head)) {
+       if ((force_flag & REMOVE_DIR_KEEP_NESTED_GIT) && is_git_repository(path)) {
                if (!quiet) {
                        quote_path_relative(path->buf, prefix, &quoted);
                        printf(dry_run ?  _(msg_would_skip_git_dir) : _(msg_skip_git_dir),