X-Git-Url: https://git.octo.it/?a=blobdiff_plain;f=init-db.c;h=bd88291b0efd3eb9c46195d413db1aba820db2dd;hb=ad4f4daae80cb00000aca76e1528add6daf8f033;hp=da2bc8f42b2ea6804c79097778f3105afcd87da6;hpb=1f961c196cbb475e612a4fb082b33efde71e7a03;p=git.git

diff --git a/init-db.c b/init-db.c
index da2bc8f4..bd88291b 100644
--- a/init-db.c
+++ b/init-db.c
@@ -21,7 +21,7 @@ static void safe_create_dir(const char *dir)
 
 static int copy_file(const char *dst, const char *src, int mode)
 {
-	int fdi, fdo;
+	int fdi, fdo, status;
 
 	mode = (mode & 0111) ? 0777 : 0666;
 	if ((fdi = open(src, O_RDONLY)) < 0)
@@ -30,30 +30,9 @@ static int copy_file(const char *dst, const char *src, int mode)
 		close(fdi);
 		return fdo;
 	}
-	while (1) {
-		char buf[BUFSIZ];
-		ssize_t leni, leno, ofs;
-		leni = read(fdi, buf, sizeof(buf));
-		if (leni < 0) {
-		error_return:
-			close(fdo);
-			close(fdi);
-			return -1;
-		}
-		if (!leni)
-			break;
-		ofs = 0;
-		do {
-			leno = write(fdo, buf+ofs, leni);
-			if (leno < 0)
-				goto error_return;
-			leni -= leno;
-			ofs += leno;
-		} while (0 < leni);
-	}
+	status = copy_fd(fdi, fdo);
 	close(fdo);
-	close(fdi);
-	return 0;
+	return status;
 }
 
 static void copy_templates_1(char *path, int baselen,
@@ -166,6 +145,7 @@ 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 +166,52 @@ 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 +260,6 @@ 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");