Merge branch 'db/clone-in-c'

* db/clone-in-c:
  Add test for cloning with "--reference" repo being a subset of source repo
  Add a test for another combination of --reference
  Test that --reference actually suppresses fetching referenced objects
  clone: fall back to copying if hardlinking fails
  builtin-clone.c: Need to closedir() in copy_or_link_directory()
  builtin-clone: fix initial checkout
  Build in clone
  Provide API access to init_db()
  Add a function to set a non-default work tree
  Allow for having for_each_ref() list extra refs
  Have a constant extern refspec for "--tags"
  Add a library function to add an alternate to the alternates file
  Add a lockfile function to append to a file
  Mark the list of refs to fetch as const

Conflicts:

	cache.h
	t/t5700-clone-reference.sh

1 files changed, 34 insertions, 1 deletions

diff --git a/t/t5700-clone-reference.sh b/t/t5700-clone-reference.sh
index e5619a9f5c..e1ca7303ac 100755
--- a/t/t5700-clone-reference.sh
+++ b/t/t5700-clone-reference.sh
@@ -8,6 +8,8 @@ test_description='test clone --reference'
 
 base_dir=`pwd`
 
+U=$base_dir/UPLOAD_LOG
+
 test_expect_success 'preparing first repository' \
 'test_create_repo A && cd A &&
 echo first > file1 &&
@@ -50,8 +52,13 @@ diff expected current'
 
 cd "$base_dir"
 
+rm -f $U
+
 test_expect_success 'cloning with reference (no -l -s)' \
-'git clone --reference B "file://$(pwd)/A" D'
+'GIT_DEBUG_SEND_PACK=3 git clone --reference B "file://$(pwd)/A" D 3>$U'
+
+test_expect_success 'fetched no objects' \
+'! grep "^want" $U'
 
 cd "$base_dir"
 
@@ -113,4 +120,30 @@ diff expected current'
 
 cd "$base_dir"
 
+test_expect_success 'preparing alternate repository #1' \
+'test_create_repo F && cd F &&
+echo first > file1 &&
+git add file1 &&
+git commit -m initial'
+
+cd "$base_dir"
+
+test_expect_success 'cloning alternate repo #2 and adding changes to repo #1' \
+'git clone F G && cd F &&
+echo second > file2 &&
+git add file2 &&
+git commit -m addition'
+
+cd "$base_dir"
+
+test_expect_success 'cloning alternate repo #1, using #2 as reference' \
+'git clone --reference G F H'
+
+cd "$base_dir"
+
+test_expect_success 'cloning with reference being subset of source (-l -s)' \
+'git clone -l -s --reference A B E'
+
+cd "$base_dir"
+
 test_done