[PATCH] partial-clone: add a partial-clone test case

["Abhradeep Chakraborty via GitGitGadget" <gitgitgadget@gmail.com>]

From: Abhradeep Chakraborty <chakrabortyabhradeep79@gmail.com>

In a blobless-cloned repo, `git log --follow -- <path>` (`<path>` have
an exact OID rename) doesn't download blob of the file from where the
new file is renamed.

Add a test case to verify it.

Signed-off-by: Abhradeep Chakraborty <chakrabortyabhradeep79@gmail.com>
---
    partial-clone: add a partial-clone test case
    
    Fixes #827 [1]
    
    [1] https://github.com/gitgitgadget/git/issues/827

Published-As: https://github.com/gitgitgadget/git/releases/tag/pr-1175%2FAbhra303%2Fcheck_partial_clone-v1
Fetch-It-Via: git fetch https://github.com/gitgitgadget/git pr-1175/Abhra303/check_partial_clone-v1
Pull-Request: https://github.com/gitgitgadget/git/pull/1175

 t/t0410-partial-clone.sh | 16 ++++++++++++++++
 t/test-lib-functions.sh  |  2 +-
 2 files changed, 17 insertions(+), 1 deletion(-)

diff --git a/t/t0410-partial-clone.sh b/t/t0410-partial-clone.sh
index f17abd298c8..1e54f4844fd 100755
--- a/t/t0410-partial-clone.sh
+++ b/t/t0410-partial-clone.sh
@@ -618,6 +618,22 @@ test_expect_success 'do not fetch when checking existence of tree we construct o
 	git -C repo cherry-pick side1
 '
 
+test_expect_success 'git log --follow does not download blobs if an exact OID rename found (blobless clone)' '
+	rm -rf repo partial.git &&
+	test_create_repo repo &&
+	content="some dummy content" &&
+	test_commit -C repo create-a-file file.txt "$content" &&
+	git -C repo mv file.txt new-file.txt &&
+	git -C repo commit -m rename-the-file &&
+	test_config -C repo uploadpack.allowfilter 1 &&
+	test_config -C repo uploadpack.allowanysha1inwant 1 &&
+
+	git clone --filter=blob:none "file://$(pwd)/repo" partial.git &&
+	GIT_TRACE2_EVENT="$(pwd)/trace.txt" \
+		git -C partial.git log --follow -- new-file.txt > "$(pwd)/trace.txt" &&
+	! test_subcommand_inexact fetch <trace.txt
+'
+
 test_expect_success 'lazy-fetch when accessing object not in the_repository' '
 	rm -rf full partial.git &&
 	test_create_repo full &&
diff --git a/t/test-lib-functions.sh b/t/test-lib-functions.sh
index 0f439c99d61..07a2b60c103 100644
--- a/t/test-lib-functions.sh
+++ b/t/test-lib-functions.sh
@@ -1811,7 +1811,7 @@ test_subcommand_inexact () {
 		shift
 	fi
 
-	local expr=$(printf '"%s".*' "$@")
+	local expr=$(printf '.*"%s".*' "$@")
 	expr="${expr%,}"
 
 	if test -n "$negate"

base-commit: 1a4874565fa3b6668042216189551b98b4dc0b1b
-- 
gitgitgadget