Re: [PATCH v4] fast-import: treat filemodify with empty tree as delete

Peter Baumann wrote:

On Thu, Jan 27, 2011 at 12:07:49AM -0600, Jonathan Nieder wrote:

quoted

+++ b/t/t9300-fast-import.sh

@@ -818,6 +818,48 @@ test_expect_success \
 	 compare_diff_raw expect actual'
 
+test_expect_success \
+	'N: delete directory by copying' \
+	'cat >expect <<-\EOF &&
+	OBJID
+	:100644 000000 OBJID OBJID D	foo/bar/qux
+	OBJID
+	:000000 100644 OBJID OBJID A	foo/bar/baz
+	:000000 100644 OBJID OBJID A	foo/bar/qux
+	EOF
+	 empty_tree=$(git mktree </dev/null) &&

[ Feel free to ignore me ... ]

Just a (stupid?) suggestion: Why not put a $EMPTY_TREE definiton in test-lib.sh
(or any other global file sourced in the tests) so if another caller needs this
definition it won't waste cpu cycles doing the calculation via mktree < /dev/null
again?

Might be a good idea.  Note, though, that that would mean more cpu
cycles used rather than less, unless we hardcode the object name
(which I prefer not to do).

One possibility would be a lib-object-names.sh defining EMPTY_BLOB and
EMPTY_TREE to be sourced by tests that need it.