gitweb: Add a feature to show side-by-side diff

diff --git a/setup.c b/setup.c
index 3463819b161028e221837c193036d920b77d5847..61c22e6becc1e49f1e92c916a4b8badd30a9cb2f 100644 (file)
--- a/setup.c
+++ b/setup.c
@@ -347,7 +347,7 @@ static int check_repository_format_gently(const char *gitdir, int *nongit_ok)
  * Try to read the location of the git directory from the .git file,
  * return path to git directory if found.
  */
-const char *read_gitfile_gently(const char *path)
+const char *read_gitfile(const char *path)
 {
        char *buf;
        char *dir;
@@ -409,7 +409,7 @@ static const char *setup_explicit_git_dir(const char *gitdirenv,
        if (PATH_MAX - 40 < strlen(gitdirenv))
                die("'$%s' too big", GIT_DIR_ENVIRONMENT);
 
-       gitfile = (char*)read_gitfile_gently(gitdirenv);
+       gitfile = (char*)read_gitfile(gitdirenv);
        if (gitfile) {
                gitfile = xstrdup(gitfile);
                gitdirenv = gitfile;
@@ -633,7 +633,7 @@ static const char *setup_git_directory_gently_1(int *nongit_ok)
        if (one_filesystem)
                current_device = get_device_or_die(".", NULL);
        for (;;) {
-               gitfile = (char*)read_gitfile_gently(DEFAULT_GIT_DIR_ENVIRONMENT);
+               gitfile = (char*)read_gitfile(DEFAULT_GIT_DIR_ENVIRONMENT);
                if (gitfile)
                        gitdirenv = gitfile = xstrdup(gitfile);
                else {
@@ -780,3 +780,10 @@ const char *setup_git_directory(void)
 {
        return setup_git_directory_gently(NULL);
 }
+
+const char *resolve_gitdir(const char *suspect)
+{
+       if (is_git_directory(suspect))
+               return suspect;
+       return read_gitfile(suspect);
+}