checkout: implement "-" abbreviation, add docs and tests

diff --git a/t/t3600-rm.sh b/t/t3600-rm.sh
index 66aca99fd32c6b98f5e6e34a3cf7b096b3e236cf..95542e9cfec1d7cc0631521c1c2bef3b7a139af7 100755 (executable)
--- a/t/t3600-rm.sh
+++ b/t/t3600-rm.sh
@@ -187,6 +187,19 @@ test_expect_success 'but with -f it should work.' '
        test_must_fail git ls-files --error-unmatch baz
 '
 
+test_expect_success 'refuse to remove cached empty file with modifications' '
+       >empty &&
+       git add empty &&
+       echo content >empty &&
+       test_must_fail git rm --cached empty
+'
+
+test_expect_success 'remove intent-to-add file without --force' '
+       echo content >intent-to-add &&
+       git add -N intent-to-add
+       git rm --cached intent-to-add
+'
+
 test_expect_success 'Recursive test setup' '
        mkdir -p frotz &&
        echo qfwfq >frotz/nitfol &&
@@ -238,4 +251,21 @@ test_expect_success 'refresh index before checking if it is up-to-date' '
 
 '
 
+test_expect_success 'choking "git rm" should not let it die with cruft' '
+       git reset -q --hard &&
+       H=0000000000000000000000000000000000000000 &&
+       i=0 &&
+       while test $i -lt 12000
+       do
+           echo "100644 $H 0   some-file-$i"
+           i=$(( $i + 1 ))
+       done | git update-index --index-info &&
+       git rm -n "some-file-*" | :;
+       test -f .git/index.lock
+       status=$?
+       rm -f .git/index.lock
+       git reset -q --hard
+       test "$status" != 0
+'
+
 test_done