Merge branch 'fc/remote-helper-refmap'

Allow remote-helper/fast-import based transport to rename the refs
while transferring the history.

* fc/remote-helper-refmap:
  transport-helper: remove unnecessary strbuf resets
  transport-helper: add support to delete branches
  fast-export: add support to delete refs
  fast-import: add support to delete refs
  transport-helper: add support to push symbolic refs
  transport-helper: add support for old:new refspec
  fast-export: add new --refspec option
  fast-export: improve argument parsing

3 files changed, 53 insertions, 1 deletions

diff --git a/t/t5801-remote-helpers.sh b/t/t5801-remote-helpers.sh
index a00a660763..2419407546 100755
--- a/t/t5801-remote-helpers.sh
+++ b/t/t5801-remote-helpers.sh
@@ -87,13 +87,29 @@ test_expect_success 'push new branch by name' '
 	compare_refs local HEAD server refs/heads/new-name
 '
 
-test_expect_failure 'push new branch with old:new refspec' '
+test_expect_success 'push new branch with old:new refspec' '
 	(cd local &&
 	 git push origin new-name:new-refspec
 	) &&
 	compare_refs local HEAD server refs/heads/new-refspec
 '
 
+test_expect_success 'push new branch with HEAD:new refspec' '
+	(cd local &&
+	 git checkout new-name
+	 git push origin HEAD:new-refspec-2
+	) &&
+	compare_refs local HEAD server refs/heads/new-refspec-2
+'
+
+test_expect_success 'push delete branch' '
+	(cd local &&
+	 git push origin :new-name
+	) &&
+	test_must_fail git --git-dir="server/.git" \
+	 rev-parse --verify refs/heads/new-name
+'
+
 test_expect_success 'forced push' '
 	(cd local &&
 	git checkout -b force-test &&
diff --git a/t/t9300-fast-import.sh b/t/t9300-fast-import.sh
index 27263dfb80..5fc9ef262a 100755
--- a/t/t9300-fast-import.sh
+++ b/t/t9300-fast-import.sh
@@ -2999,4 +2999,22 @@ test_expect_success 'T: ls root tree' '
 	test_cmp expect actual
 '
 
+test_expect_success 'T: delete branch' '
+	git branch to-delete &&
+	git fast-import <<-EOF &&
+	reset refs/heads/to-delete
+	from 0000000000000000000000000000000000000000
+	EOF
+	test_must_fail git rev-parse --verify refs/heads/to-delete
+'
+
+test_expect_success 'T: empty reset doesnt delete branch' '
+	git branch not-to-delete &&
+	git fast-import <<-EOF &&
+	reset refs/heads/not-to-delete
+	EOF
+	git show-ref &&
+	git rev-parse --verify refs/heads/not-to-delete
+'
+
 test_done
diff --git a/t/t9350-fast-export.sh b/t/t9350-fast-export.sh
index 2312dec8f0..66c8b0a371 100755
--- a/t/t9350-fast-export.sh
+++ b/t/t9350-fast-export.sh
@@ -504,4 +504,22 @@ test_expect_success 'refs are updated even if no commits need to be exported' '
 	test_cmp expected actual
 '
 
+test_expect_success 'use refspec' '
+	git fast-export --refspec refs/heads/master:refs/heads/foobar master | \
+		grep "^commit " | sort | uniq > actual &&
+	echo "commit refs/heads/foobar" > expected &&
+	test_cmp expected actual
+'
+
+test_expect_success 'delete refspec' '
+	git branch to-delete &&
+	git fast-export --refspec :refs/heads/to-delete to-delete ^to-delete > actual &&
+	cat > expected <<-EOF &&
+	reset refs/heads/to-delete
+	from 0000000000000000000000000000000000000000
+
+	EOF
+	test_cmp expected actual
+'
+
 test_done