1 files changed, 125 insertions, 0 deletions
diff --git a/t/t7701-repack-unpack-unreachable.sh b/t/t7701-repack-unpack-unreachable.sh
new file mode 100755
index 0000000000..b66e383866
--- /dev/null
+++ b/t/t7701-repack-unpack-unreachable.sh
@@ -0,0 +1,125 @@
+#!/bin/sh
+
+test_description='git repack works correctly'
+
+. ./test-lib.sh
+
+fsha1=
+csha1=
+tsha1=
+
+test_expect_success '-A with -d option leaves unreachable objects unpacked' '
+	echo content > file1 &&
+	git add . &&
+	test_tick &&
+	git commit -m initial_commit &&
+	# create a transient branch with unique content
+	git checkout -b transient_branch &&
+	echo more content >> file1 &&
+	# record the objects created in the database for file, commit, tree
+	fsha1=$(git hash-object file1) &&
+	test_tick &&
+	git commit -a -m more_content &&
+	csha1=$(git rev-parse HEAD^{commit}) &&
+	tsha1=$(git rev-parse HEAD^{tree}) &&
+	git checkout master &&
+	echo even more content >> file1 &&
+	test_tick &&
+	git commit -a -m even_more_content &&
+	# delete the transient branch
+	git branch -D transient_branch &&
+	# pack the repo
+	git repack -A -d -l &&
+	# verify objects are packed in repository
+	test 3 = $(git verify-pack -v -- .git/objects/pack/*.idx |
+		   egrep "^($fsha1|$csha1|$tsha1) " |
+		   sort | uniq | wc -l) &&
+	git show $fsha1 &&
+	git show $csha1 &&
+	git show $tsha1 &&
+	# now expire the reflog, while keeping reachable ones but expiring
+	# unreachables immediately
+	test_tick &&
+	sometimeago=$(( $test_tick - 10000 )) &&
+	git reflog expire --expire=$sometimeago --expire-unreachable=$test_tick --all &&
+	# and repack
+	git repack -A -d -l &&
+	# verify objects are retained unpacked
+	test 0 = $(git verify-pack -v -- .git/objects/pack/*.idx |
+		   egrep "^($fsha1|$csha1|$tsha1) " |
+		   sort | uniq | wc -l) &&
+	git show $fsha1 &&
+	git show $csha1 &&
+	git show $tsha1
+'
+
+compare_mtimes ()
+{
+	read tref rest &&
+	while read t rest; do
+		test "$tref" = "$t" || return 1
+	done
+}
+
+test_expect_success '-A without -d option leaves unreachable objects packed' '
+	fsha1path=$(echo "$fsha1" | sed -e "s|\(..\)|\1/|") &&
+	fsha1path=".git/objects/$fsha1path" &&
+	csha1path=$(echo "$csha1" | sed -e "s|\(..\)|\1/|") &&
+	csha1path=".git/objects/$csha1path" &&
+	tsha1path=$(echo "$tsha1" | sed -e "s|\(..\)|\1/|") &&
+	tsha1path=".git/objects/$tsha1path" &&
+	git branch transient_branch $csha1 &&
+	git repack -a -d -l &&
+	test ! -f "$fsha1path" &&
+	test ! -f "$csha1path" &&
+	test ! -f "$tsha1path" &&
+	test 1 = $(ls -1 .git/objects/pack/pack-*.pack | wc -l) &&
+	packfile=$(ls .git/objects/pack/pack-*.pack) &&
+	git branch -D transient_branch &&
+	test_tick &&
+	git repack -A -l &&
+	test ! -f "$fsha1path" &&
+	test ! -f "$csha1path" &&
+	test ! -f "$tsha1path" &&
+	git show $fsha1 &&
+	git show $csha1 &&
+	git show $tsha1
+'
+
+test_expect_success 'unpacked objects receive timestamp of pack file' '
+	tmppack=".git/objects/pack/tmp_pack" &&
+	ln "$packfile" "$tmppack" &&
+	git repack -A -l -d &&
+	test-chmtime -v +0 "$tmppack" "$fsha1path" "$csha1path" "$tsha1path" \
+		> mtimes &&
+	compare_mtimes < mtimes
+'
+
+test_expect_success 'do not bother loosening old objects' '
+	obj1=$(echo one | git hash-object -w --stdin) &&
+	obj2=$(echo two | git hash-object -w --stdin) &&
+	pack1=$(echo $obj1 | git pack-objects .git/objects/pack/pack) &&
+	pack2=$(echo $obj2 | git pack-objects .git/objects/pack/pack) &&
+	git prune-packed &&
+	git cat-file -p $obj1 &&
+	git cat-file -p $obj2 &&
+	test-chmtime =-86400 .git/objects/pack/pack-$pack2.pack &&
+	git repack -A -d --unpack-unreachable=1.hour.ago &&
+	git cat-file -p $obj1 &&
+	test_must_fail git cat-file -p $obj2
+'
+
+test_expect_success 'keep packed objects found only in index' '
+	echo my-unique-content >file &&
+	git add file &&
+	git commit -m "make it reachable" &&
+	git gc &&
+	git reset HEAD^ &&
+	git reflog expire --expire=now --all &&
+	git add file &&
+	test-chmtime =-86400 .git/objects/pack/* &&
+	git gc --prune=1.hour.ago &&
+	git cat-file blob :file
+'
+
+test_done