Documentation: git diff --check detects conflict markers

diff --git a/path.c b/path.c
index 95acbafa6883b4418f19a208cb9889f5642f3925..38f2ebd6bfad2b1557b06ce34a0154603533dd65 100644 (file)
--- a/path.c
+++ b/path.c
@@ -98,7 +98,7 @@ static const char *common_list[] = {
        NULL
 };
 
-static void update_common_dir(struct strbuf *buf, int git_dir_len)
+static void update_common_dir(struct strbuf *buf, int git_dir_len, const char *common_dir)
 {
        char *base = buf->buf + git_dir_len;
        const char **p;
@@ -115,12 +115,16 @@ static void update_common_dir(struct strbuf *buf, int git_dir_len)
                        path++;
                        is_dir = 1;
                }
+
+               if (!common_dir)
+                       common_dir = get_git_common_dir();
+
                if (is_dir && dir_prefix(base, path)) {
-                       replace_dir(buf, git_dir_len, get_git_common_dir());
+                       replace_dir(buf, git_dir_len, common_dir);
                        return;
                }
                if (!is_dir && !strcmp(base, path)) {
-                       replace_dir(buf, git_dir_len, get_git_common_dir());
+                       replace_dir(buf, git_dir_len, common_dir);
                        return;
                }
        }
@@ -143,7 +147,7 @@ void report_linked_checkout_garbage(void)
                strbuf_setlen(&sb, len);
                strbuf_addstr(&sb, path);
                if (file_exists(sb.buf))
-                       report_garbage("unused in linked checkout", sb.buf);
+                       report_garbage(PACKDIR_FILE_GARBAGE, sb.buf);
        }
        strbuf_release(&sb);
 }
@@ -160,7 +164,7 @@ static void adjust_git_path(struct strbuf *buf, int git_dir_len)
        else if (git_db_env && dir_prefix(base, "objects"))
                replace_dir(buf, git_dir_len + 7, get_object_directory());
        else if (git_common_dir_env)
-               update_common_dir(buf, git_dir_len);
+               update_common_dir(buf, git_dir_len, NULL);
 }
 
 static void do_git_path(struct strbuf *buf, const char *fmt, va_list args)
@@ -228,6 +232,8 @@ static void do_submodule_path(struct strbuf *buf, const char *path,
                              const char *fmt, va_list args)
 {
        const char *git_dir;
+       struct strbuf git_submodule_common_dir = STRBUF_INIT;
+       struct strbuf git_submodule_dir = STRBUF_INIT;
 
        strbuf_addstr(buf, path);
        if (buf->len && buf->buf[buf->len - 1] != '/')
@@ -240,9 +246,17 @@ static void do_submodule_path(struct strbuf *buf, const char *path,
                strbuf_addstr(buf, git_dir);
        }
        strbuf_addch(buf, '/');
+       strbuf_addstr(&git_submodule_dir, buf->buf);
 
        strbuf_vaddf(buf, fmt, args);
+
+       if (get_common_dir_noenv(&git_submodule_common_dir, git_submodule_dir.buf))
+               update_common_dir(buf, git_submodule_dir.len, git_submodule_common_dir.buf);
+
        strbuf_cleanup_path(buf);
+
+       strbuf_release(&git_submodule_dir);
+       strbuf_release(&git_submodule_common_dir);
 }
 
 char *git_pathdup_submodule(const char *path, const char *fmt, ...)
@@ -431,18 +445,22 @@ const char *enter_repo(const char *path, int strict)
                }
                if (!suffix[i])
                        return NULL;
-               gitfile = read_gitfile(used_path) ;
+               gitfile = read_gitfile(used_path);
                if (gitfile)
                        strcpy(used_path, gitfile);
                if (chdir(used_path))
                        return NULL;
                path = validated_path;
        }
-       else if (chdir(path))
-               return NULL;
+       else {
+               const char *gitfile = read_gitfile(path);
+               if (gitfile)
+                       path = gitfile;
+               if (chdir(path))
+                       return NULL;
+       }
 
-       if (access("objects", X_OK) == 0 && access("refs", X_OK) == 0 &&
-           validate_headref("HEAD") == 0) {
+       if (is_git_directory(".")) {
                set_git_dir(".");
                check_repository_format();
                return path;
@@ -676,6 +694,11 @@ const char *remove_leading_path(const char *in, const char *prefix)
  * normalized, any time "../" eats up to the prefix_len part,
  * prefix_len is reduced. In the end prefix_len is the remaining
  * prefix that has not been overridden by user pathspec.
+ *
+ * NEEDSWORK: This function doesn't perform normalization w.r.t. trailing '/'.
+ * For everything but the root folder itself, the normalized path should not
+ * end with a '/', then the callers need to be fixed up accordingly.
+ *
  */
 int normalize_path_copy_len(char *dst, const char *src, int *prefix_len)
 {