Do not load user or system gitconfig and gitattributes

[ps-cgit] / cgit.c

diff --git a/cgit.c b/cgit.c
index f73c7b0b6c7b76d3aa231fe75edfc2ac6acd4745..0bf8972397608506b978d0c2dc275185a66c88b4 100644 (file)
--- a/cgit.c
+++ b/cgit.c
@@ -459,12 +459,36 @@ static char *guess_defbranch(void)
 
 static int prepare_repo_cmd(struct cgit_context *ctx)
 {
+       char *user_home;
+       char *xdg_home;
        unsigned char sha1[20];
        int nongit = 0;
        int rc;
 
+       /* The path to the git repository. */
        setenv("GIT_DIR", ctx->repo->path, 1);
+
+       /* Do not look in /etc/ for gitconfig and gitattributes. */
+       setenv("GIT_CONFIG_NOSYSTEM", "1", 1);
+       setenv("GIT_ATTR_NOSYSTEM", "1", 1);
+
+       /* We unset HOME and XDG_CONFIG_HOME before calling the git setup function
+        * so that we don't make unneccessary filesystem accesses. */
+       user_home = getenv("HOME");
+       xdg_home = getenv("XDG_CONFIG_HOME");
+       unsetenv("HOME");
+       unsetenv("XDG_CONFIG_HOME");
+
+       /* Setup the git directory and initialize the notes system. Both of these
+        * load local configuration from the git repository, so we do them both while
+        * the HOME variables are unset. */
        setup_git_directory_gently(&nongit);
+       init_display_notes(NULL);
+
+       /* We restore the unset variables afterward. */
+       setenv("HOME", user_home, 1);
+       setenv("XDG_CONFIG_HOME", xdg_home, 1);
+
        if (nongit) {
                const char *name = ctx->repo->name;
                rc = errno;