Show the root commit in a followed log

A followed log diffs each commit against its parent to learn whether
the file changed there, and a root commit was skipped rather than
diffed against the empty tree, so a file created in the first commit
never showed that commit.

1 file changed, 38 insertions, 0 deletions

diff --git a/tests/t0103-log.sh b/tests/t0103-log.shindex 16fabda..08f9ddd 100755--- a/tests/t0103-log.sh+++ b/tests/t0103-log.sh@@ -45,4 +45,42 @@ test_expect_success 'no links with space in path' '! grep "href=./with space/" t test_expect_success 'no links with space in arg' '! grep "q=commit 1" tmp' test_expect_success 'commit 2 is not visible' '! grep "commit 2" tmp' +# Following a file diffs each commit for the name the file had there, so the+# root commit that created it has to be diffed too.+test_expect_success 'set up a renamed file to follow' '+	test_create_repo repos/fol &&+	(+		cd repos/fol &&+		echo 1 >a.txt &&+		git add a.txt &&+		git commit -m "create a" &&+		for i in 2 3 4+		do+			echo $i >>a.txt &&+			git commit -am "edit a $i" || return 1+		done &&+		git mv a.txt b.txt &&+		git commit -m "rename to b" &&+		for i in 6 7 8+		do+			echo $i >>b.txt &&+			git commit -am "edit b $i" || return 1+		done+	) &&+	{+		echo "virtual-root=/" &&+		echo "cache-size=0" &&+		echo "enable-follow-links=1" &&+		echo "max-commit-count=3" &&+		echo "repo.url=fol" &&+		echo "repo.path=$PWD/repos/fol/.git"+	} >folrc+'++test_expect_success 'a followed log reaches the root commit' '+	CGIT_CONFIG="$PWD/folrc" QUERY_STRING="url=fol/log/b.txt&follow=1&ofs=6" cgit >tmp &&+	grep ">edit a 2<" tmp &&+	grep ">create a<" tmp+'+ test_done
diff --git a/tests/t0103-log.sh b/tests/t0103-log.sh
index 16fabda..08f9ddd 100755
--- a/tests/t0103-log.sh
+++ b/tests/t0103-log.sh
@@ -45,4 +45,42 @@ test_expect_success 'no links with space in path' '! grep "href=./with space/" t
 test_expect_success 'no links with space in arg' '! grep "q=commit 1" tmp'
 test_expect_success 'commit 2 is not visible' '! grep "commit 2" tmp'
 
+# Following a file diffs each commit for the name the file had there, so the
+# root commit that created it has to be diffed too.
+test_expect_success 'set up a renamed file to follow' '
+	test_create_repo repos/fol &&
+	(
+		cd repos/fol &&
+		echo 1 >a.txt &&
+		git add a.txt &&
+		git commit -m "create a" &&
+		for i in 2 3 4
+		do
+			echo $i >>a.txt &&
+			git commit -am "edit a $i" || return 1
+		done &&
+		git mv a.txt b.txt &&
+		git commit -m "rename to b" &&
+		for i in 6 7 8
+		do
+			echo $i >>b.txt &&
+			git commit -am "edit b $i" || return 1
+		done
+	) &&
+	{
+		echo "virtual-root=/" &&
+		echo "cache-size=0" &&
+		echo "enable-follow-links=1" &&
+		echo "max-commit-count=3" &&
+		echo "repo.url=fol" &&
+		echo "repo.path=$PWD/repos/fol/.git"
+	} >folrc
+'
+
+test_expect_success 'a followed log reaches the root commit' '
+	CGIT_CONFIG="$PWD/folrc" QUERY_STRING="url=fol/log/b.txt&follow=1&ofs=6" cgit >tmp &&
+	grep ">edit a 2<" tmp &&
+	grep ">create a<" tmp
+'
+
 test_done