update-index -h: show usage even with corrupt index
When trying to fix up a corrupt repository, one might prefer that
"update-index -h" print an accurate usage message and exit rather
than reading the repository and complaining about the corruption.
[jn: with rewritten log message and tests]
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
diff --git a/t/t2107-update-index-basic.sh b/t/t2107-update-index-basic.sh
new file mode 100755
index 0000000..33f8be0
--- /dev/null
+++ b/t/t2107-update-index-basic.sh
@@ -0,0 +1,32 @@
+#!/bin/sh
+
+test_description='basic update-index tests
+
+Tests for command-line parsing and basic operation.
+'
+
+. ./test-lib.sh
+
+test_expect_success 'update-index --nonsense fails' '
+ test_must_fail git update-index --nonsense 2>msg &&
+ cat msg &&
+ test -s msg
+'
+
+test_expect_failure 'update-index --nonsense dumps usage' '
+ test_expect_code 129 git update-index --nonsense 2>err &&
+ grep "[Uu]sage: git update-index" err
+'
+
+test_expect_success 'update-index -h with corrupt index' '
+ mkdir broken &&
+ (
+ cd broken &&
+ git init &&
+ >.git/index &&
+ test_expect_code 129 git update-index -h >usage 2>&1
+ ) &&
+ grep "[Uu]sage: git update-index" broken/usage
+'
+
+test_done
