check-attr: move to the top of working tree when in non-bare repository

Lasse Makholm noticed that running "git check-attr" from a place
totally unrelated to $GIT_DIR and $GIT_WORK_TREE does not give
expected results.  I think it is because the command does not say it
wants to call setup_work_tree().

We still need to support use cases where only a bare repository is
involved, so unconditionally requiring a working tree would not work
well.  Instead, make a call only in a non-bare repository.

We may want to see if we want to do a similar fix in the opposite
direction to check-ignore.  The command unconditionally requires a
working tree, but it should be usable in a bare repository just like
check-attr attempts to be.

Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/builtin/check-attr.c b/builtin/check-attr.c
index 075d01d30c58d40abb48ff820ba6f8d310f785d0..f29d6c33e90455a3e3c0d7d5f6316570f4f64c78 100644 (file)
--- a/builtin/check-attr.c
+++ b/builtin/check-attr.c
@@ -94,6 +94,9 @@ int cmd_check_attr(int argc, const char **argv, const char *prefix)
        struct git_attr_check *check;
        int cnt, i, doubledash, filei;
 
+       if (!is_bare_repository())
+               setup_work_tree();
+
        git_config(git_default_config, NULL);
 
        argc = parse_options(argc, argv, prefix, check_attr_options,

diff --git a/t/t0003-attributes.sh b/t/t0003-attributes.sh
index 0554b130f299fd52676361cc9608b469ec382829..6e6aef598836b6405006390aac5c5f11901de54d 100755 (executable)
--- a/t/t0003-attributes.sh
+++ b/t/t0003-attributes.sh
@@ -196,6 +196,16 @@ test_expect_success 'root subdir attribute test' '
        attr_check subdir/a/i unspecified
 '
 
+test_expect_success 'using --git-dir and --work-tree' '
+       mkdir unreal real &&
+       git init real &&
+       echo "file test=in-real" >real/.gitattributes &&
+       (
+               cd unreal &&
+               attr_check file in-real "--git-dir ../real/.git --work-tree ../real"
+       )
+'
+
 test_expect_success 'setup bare' '
        git clone --bare . bare.git
 '