X-Git-Url: https://git.octo.it/?a=blobdiff_plain;f=init-db.c;h=ca6fa4d4200faaf208e5c6c5af5f009cc4432a09;hb=a60d2d8f2dbeb7025e04dd65fc2dedd8271c9cc6;hp=da2bc8f42b2ea6804c79097778f3105afcd87da6;hpb=c1067050ce58b5b39f528fe634732da858664603;p=git.git

diff --git a/init-db.c b/init-db.c
index da2bc8f4..ca6fa4d4 100644
--- a/init-db.c
+++ b/init-db.c
@@ -166,6 +166,7 @@ static void create_default_files(const char *git_dir,
 {
 	unsigned len = strlen(git_dir);
 	static char path[PATH_MAX];
+	unsigned char sha1[20];
 
 	if (len > sizeof(path)-50)
 		die("insane git directory %s", git_dir);
@@ -186,16 +187,52 @@ static void create_default_files(const char *git_dir,
 
 	/*
 	 * Create the default symlink from ".git/HEAD" to the "master"
-	 * branch
+	 * branch, if it does not exist yet.
 	 */
 	strcpy(path + len, "HEAD");
-	if (symlink("refs/heads/master", path) < 0) {
-		if (errno != EEXIST) {
-			perror(path);
+	if (read_ref(path, sha1) < 0) {
+		if (create_symref(path, "refs/heads/master") < 0)
 			exit(1);
-		}
 	}
+	path[len] = 0;
 	copy_templates(path, len, template_path);
+
+	/*
+	 * Find out if we can trust the executable bit.
+	 */
+	safe_create_dir(path);
+	strcpy(path + len, "config");
+	if (access(path, R_OK) < 0) {
+		static const char contents[] =
+			"#\n"
+			"# This is the config file\n"
+			"#\n"
+			"\n"
+			"; core variables\n"
+			"[core]\n"
+			"	; Don't trust file modes\n"
+			"	filemode = false\n"
+			"\n";
+		FILE *config = fopen(path, "w");
+		struct stat st;
+
+		if (!config)
+			die("Can not write to %s?", path);
+
+		fwrite(contents, sizeof(contents)-1, 1, config);
+
+		fclose(config);
+
+		if (!lstat(path, &st)) {
+			struct stat st2;
+			if (!chmod(path, st.st_mode ^ S_IXUSR) &&
+					!lstat(path, &st2) &&
+					st.st_mode != st2.st_mode)
+				unlink(path);
+			else
+				fprintf(stderr, "Ignoring file modes\n");
+		}
+	}
 }
 
 static const char init_db_usage[] =
@@ -244,10 +281,6 @@ int main(int argc, char **argv)
 	memcpy(path, sha1_dir, len);
 
 	safe_create_dir(sha1_dir);
-	for (i = 0; i < 256; i++) {
-		sprintf(path+len, "/%02x", i);
-		safe_create_dir(path);
-	}
 	strcpy(path+len, "/pack");
 	safe_create_dir(path);
 	strcpy(path+len, "/info");