#!/bin/sh

# Submodule rows can derive their links from the .gitmodules entry at the
# shown revision once enable-gitmodules-links is set. The url is matched
# against the repositories this instance serves first, so ssh and relative
# urls still land on an internal page, a plain web url is linked directly,
# an ssh url to a known host is rewritten to its web form, and anything
# else stays unlinked with the url offered as a tooltip.

test_description='Check submodule links derived from .gitmodules'
. ./setup.sh

test_expect_success 'set up a parent repo with submodules' '
	mkrepo repos/subtarget 1 &&
	mkrepo repos/subparent 1 &&
	(
		cd repos/subparent &&
		sub=$(git rev-parse HEAD) &&
		git update-index --add --cacheinfo 160000,$sub,local-ssh &&
		git update-index --add --cacheinfo 160000,$sub,sibling &&
		git update-index --add --cacheinfo 160000,$sub,forge-https &&
		git update-index --add --cacheinfo 160000,$sub,forge-ssh &&
		git update-index --add --cacheinfo 160000,$sub,opaque &&
		git update-index --add --cacheinfo 160000,$sub,cgit-host &&
		cat >.gitmodules <<-\EOF &&
		[submodule "local-ssh"]
			path = local-ssh
			url = git@example.com:mirrors/subtarget.git
		[submodule "sibling"]
			path = sibling
			url = ../subtarget.git
		[submodule "forge-https"]
			path = forge-https
			url = https://github.com/example/project.git
		[submodule "forge-ssh"]
			path = forge-ssh
			url = git@github.com:example/other.git
		[submodule "opaque"]
			path = opaque
			url = git@private.example.com:closed/thing.git
		[submodule "cgit-host"]
			path = cgit-host
			url = https://git.kernel.org/pub/scm/git/git.git
		EOF
		git add .gitmodules &&
		git commit -m submodules
	) &&
	{
		echo "virtual-root=/" &&
		echo "cache-size=0" &&
		echo "enable-gitmodules-links=1" &&
		echo "repo.url=subparent" &&
		echo "repo.path=$PWD/repos/subparent/.git" &&
		echo "repo.url=subtarget" &&
		echo "repo.path=$PWD/repos/subtarget/.git"
	} >subrc
'

test_expect_success 'generate subparent/tree' '
	CGIT_CONFIG="$PWD/subrc" QUERY_STRING="url=subparent/tree/" cgit >tmp
'

test_expect_success 'an ssh url served here links to the local repo' '
	sub=$(git -C repos/subparent rev-parse HEAD~1) &&
	grep "href=./subtarget/tree/?id=$sub.>local-ssh</a>" tmp
'

test_expect_success 'its hash links to the local commit page' '
	sub=$(git -C repos/subparent rev-parse HEAD~1) &&
	grep "href=./subtarget/commit/?id=$sub." tmp
'

test_expect_success 'a relative url resolves against this repository' '
	sub=$(git -C repos/subparent rev-parse HEAD~1) &&
	grep "href=./subtarget/tree/?id=$sub.>sibling</a>" tmp
'

test_expect_success 'a web url is linked as it is' '
	grep "href=.https://github.com/example/project.git.>forge-https</a>" tmp
'

test_expect_success 'a known forge hash links to its commit page' '
	sub=$(git -C repos/subparent rev-parse HEAD~1) &&
	grep "href=.https://github.com/example/project/commit/$sub." tmp
'

test_expect_success 'an ssh url to a known forge is rewritten' '
	sub=$(git -C repos/subparent rev-parse HEAD~1) &&
	grep "href=.https://github.com/example/other.>forge-ssh</a>" tmp &&
	grep "href=.https://github.com/example/other/commit/$sub." tmp
'

test_expect_success 'a cgit host keeps its .git suffix in the commit link' '
	sub=$(git -C repos/subparent rev-parse HEAD~1) &&
	grep "href=.https://git.kernel.org/pub/scm/git/git.git/commit/?id=$sub." tmp
'

test_expect_success 'an unresolvable url stays unlinked with a tooltip' '
	grep "class=.ls-mod. title=.git@private.example.com:closed/thing.git.>opaque</span>" tmp
'

test_expect_success 'the links stay off without the flag' '
	sed "/enable-gitmodules-links/d" subrc >subrcoff &&
	CGIT_CONFIG="$PWD/subrcoff" QUERY_STRING="url=subparent/tree/" cgit >tmp &&
	! grep "subtarget/tree" tmp &&
	grep "class=.ls-mod.>local-ssh</span>" tmp
'

test_done