commit cf61d8187fe29b5d3333c3103bc73ad3ca585efc
from: Stefan Sperling <stsp@stsp.name>
date: Sat Jan 12 21:38:58 2019 UTC

allow recovery of a bad file index by removing it and updating

commit - 4a1ddfc2ae992bd73e34ce89b7f309df643aeba5
commit + cf61d8187fe29b5d3333c3103bc73ad3ca585efc
blob - f51b680fd50600a7dde8e98ca7bb6f718b81089c
blob + a161221afac60aee49eeed1c62a75ef2f9fec686
--- lib/worktree.c
+++ lib/worktree.c
@@ -800,13 +800,16 @@ got_worktree_checkout_files(struct got_worktree *workt
 	 */
 	index = fopen(fileindex_path, "rb");
 	if (index == NULL) {
-		err = got_error_from_errno();
-		goto done;
+		if (errno != ENOENT) {
+			err = got_error_from_errno();
+			goto done;
+		}
+	} else {
+		err = got_fileindex_read(fileindex, index);
+		fclose(index);
+		if (err)
+			goto done;
 	}
-	err = got_fileindex_read(fileindex, index);
-	fclose(index);
-	if (err)
-		goto done;
 
 	err = got_opentemp_named(&new_fileindex_path, &new_index,
 	    fileindex_path);