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-rwxr-xr-xt/t4067-diff-partial-clone.sh103
1 files changed, 103 insertions, 0 deletions
diff --git a/t/t4067-diff-partial-clone.sh b/t/t4067-diff-partial-clone.sh
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+++ b/t/t4067-diff-partial-clone.sh
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+#!/bin/sh
+
+test_description='behavior of diff when reading objects in a partial clone'
+
+. ./test-lib.sh
+
+test_expect_success 'git show batches blobs' '
+ test_when_finished "rm -rf server client trace" &&
+
+ test_create_repo server &&
+ echo a >server/a &&
+ echo b >server/b &&
+ git -C server add a b &&
+ git -C server commit -m x &&
+
+ test_config -C server uploadpack.allowfilter 1 &&
+ test_config -C server uploadpack.allowanysha1inwant 1 &&
+ git clone --bare --filter=blob:limit=0 "file://$(pwd)/server" client &&
+
+ # Ensure that there is exactly 1 negotiation by checking that there is
+ # only 1 "done" line sent. ("done" marks the end of negotiation.)
+ GIT_TRACE_PACKET="$(pwd)/trace" git -C client show HEAD &&
+ grep "git> done" trace >done_lines &&
+ test_line_count = 1 done_lines
+'
+
+test_expect_success 'diff batches blobs' '
+ test_when_finished "rm -rf server client trace" &&
+
+ test_create_repo server &&
+ echo a >server/a &&
+ echo b >server/b &&
+ git -C server add a b &&
+ git -C server commit -m x &&
+ echo c >server/c &&
+ echo d >server/d &&
+ git -C server add c d &&
+ git -C server commit -m x &&
+
+ test_config -C server uploadpack.allowfilter 1 &&
+ test_config -C server uploadpack.allowanysha1inwant 1 &&
+ git clone --bare --filter=blob:limit=0 "file://$(pwd)/server" client &&
+
+ # Ensure that there is exactly 1 negotiation by checking that there is
+ # only 1 "done" line sent. ("done" marks the end of negotiation.)
+ GIT_TRACE_PACKET="$(pwd)/trace" git -C client diff HEAD^ HEAD &&
+ grep "git> done" trace >done_lines &&
+ test_line_count = 1 done_lines
+'
+
+test_expect_success 'diff skips same-OID blobs' '
+ test_when_finished "rm -rf server client trace" &&
+
+ test_create_repo server &&
+ echo a >server/a &&
+ echo b >server/b &&
+ git -C server add a b &&
+ git -C server commit -m x &&
+ echo another-a >server/a &&
+ git -C server add a &&
+ git -C server commit -m x &&
+
+ test_config -C server uploadpack.allowfilter 1 &&
+ test_config -C server uploadpack.allowanysha1inwant 1 &&
+ git clone --bare --filter=blob:limit=0 "file://$(pwd)/server" client &&
+
+ echo a | git hash-object --stdin >hash-old-a &&
+ echo another-a | git hash-object --stdin >hash-new-a &&
+ echo b | git hash-object --stdin >hash-b &&
+
+ # Ensure that only a and another-a are fetched.
+ GIT_TRACE_PACKET="$(pwd)/trace" git -C client diff HEAD^ HEAD &&
+ grep "want $(cat hash-old-a)" trace &&
+ grep "want $(cat hash-new-a)" trace &&
+ ! grep "want $(cat hash-b)" trace
+'
+
+test_expect_success 'diff with rename detection batches blobs' '
+ test_when_finished "rm -rf server client trace" &&
+
+ test_create_repo server &&
+ echo a >server/a &&
+ printf "b\nb\nb\nb\nb\n" >server/b &&
+ git -C server add a b &&
+ git -C server commit -m x &&
+ rm server/b &&
+ printf "b\nb\nb\nb\nbX\n" >server/c &&
+ git -C server add c &&
+ git -C server commit -a -m x &&
+
+ test_config -C server uploadpack.allowfilter 1 &&
+ test_config -C server uploadpack.allowanysha1inwant 1 &&
+ git clone --bare --filter=blob:limit=0 "file://$(pwd)/server" client &&
+
+ # Ensure that there is exactly 1 negotiation by checking that there is
+ # only 1 "done" line sent. ("done" marks the end of negotiation.)
+ GIT_TRACE_PACKET="$(pwd)/trace" git -C client diff -M HEAD^ HEAD >out &&
+ grep "similarity index" out &&
+ grep "git> done" trace >done_lines &&
+ test_line_count = 1 done_lines
+'
+
+test_done