Improve initialization of git directory

Using the functions offered by libgit feels like the right thing to do. Also,
make sure that config errors gets properly reported.

Signed-off-by: Lars Hjemli <hjemli@gmail.com>

2 files changed, 9 insertions, 10 deletions

diff --git a/cgit.c b/cgit.c
index b270fdc..2c933dc 100644
--- a/cgit.c
+++ b/cgit.c
@@ -83,20 +83,23 @@ static void cgit_print_repo_page(struct cacheitem *item)
         char *title, *tmp;
         int show_search;
         unsigned char sha1[20];
+        int nongit = 0;
 
-        if (chdir(ctx.repo->path)) {
-                title = fmt("%s - %s", ctx.cfg.root_title, "Bad request");
+        setenv("GIT_DIR", ctx.repo->path, 1);
+        setup_git_directory_gently(&nongit);
+        if (nongit) {
+                title = fmt("%s - %s", ctx.cfg.root_title, "config error");
+                tmp = fmt("Not a git repository: '%s'", ctx.repo->path);
+                ctx.repo = NULL;
                 cgit_print_docstart(title, item);
                 cgit_print_pageheader(title, 0);
-                cgit_print_error(fmt("Unable to scan repository: %s",
-                                     strerror(errno)));
+                cgit_print_error(tmp);
                 cgit_print_docend();
                 return;
         }
 
         title = fmt("%s - %s", ctx.repo->name, ctx.repo->desc);
         show_search = 0;
-        setenv("GIT_DIR", ctx.repo->path, 1);
 
         if (!ctx.qry.head) {
                 ctx.qry.head = xstrdup(find_default_branch(ctx.repo));
@@ -179,10 +182,8 @@ static void cgit_print_repo_page(struct cacheitem *item)
 
 static void cgit_fill_cache(struct cacheitem *item, int use_cache)
 {
-        static char buf[PATH_MAX];
         int stdout2;
 
-        getcwd(buf, sizeof(buf));
         item->st.st_mtime = time(NULL);
 
         if (use_cache) {
@@ -203,8 +204,6 @@ static void cgit_fill_cache(struct cacheitem *item, int use_cache)
                              "Restoring original STDOUT");
                 chk_zero(close(stdout2), "Closing temporary STDOUT");
         }
-
-        chdir(buf);
 }
 
 static void cgit_check_cache(struct cacheitem *item)
diff --git a/ui-shared.c b/ui-shared.c
index b9f487a..cc1ab8b 100644
--- a/ui-shared.c
+++ b/ui-shared.c
@@ -476,7 +476,7 @@ void cgit_print_pageheader(char *title, int show_search)
         htmlf("'><img src='%s' alt='cgit'/></a>\n",
               ctx.cfg.logo);
         html("</td></tr>\n<tr><td class='sidebar'>\n");
-        if (ctx.qry.repo) {
+        if (ctx.repo) {
                 html("<h1 class='first'>");
                 html_txt(strrpart(ctx.repo->name, 20));
                 html("</h1>\n");