lix/tests/fetchMercurial.sh

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source common.sh
if [[ -z $(type -p hg) ]]; then
echo "Mercurial not installed; skipping Mercurial tests"
exit 0
fi
clearStore
repo=$TEST_ROOT/hg
rm -rf $repo ${repo}-tmp $TEST_HOME/.cache/nix/hg
hg init $repo
echo '[ui]' >> $repo/.hg/hgrc
echo 'username = Foobar <foobar@example.org>' >> $repo/.hg/hgrc
echo utrecht > $repo/hello
hg add --cwd $repo hello
hg commit --cwd $repo -m 'Bla1'
rev1=$(hg log --cwd $repo -r tip --template '{node}')
echo world > $repo/hello
hg commit --cwd $repo -m 'Bla2'
rev2=$(hg log --cwd $repo -r tip --template '{node}')
# Fetch the default branch.
path=$(nix eval --raw "(builtins.fetchMercurial file://$repo).outPath")
[[ $(cat $path/hello) = world ]]
# Fetch using an explicit revision hash.
path2=$(nix eval --raw "(builtins.fetchMercurial { url = file://$repo; rev = \"$rev2\"; }).outPath")
[[ $path = $path2 ]]
# Fetch again. This should be cached.
mv $repo ${repo}-tmp
path2=$(nix eval --raw "(builtins.fetchMercurial file://$repo).outPath")
[[ $path = $path2 ]]
[[ $(nix eval --raw "(builtins.fetchMercurial file://$repo).branch") = default ]]
[[ $(nix eval "(builtins.fetchMercurial file://$repo).revCount") = 1 ]]
[[ $(nix eval --raw "(builtins.fetchMercurial file://$repo).rev") = $rev2 ]]
# But with TTL 0, it should fail.
(! nix eval --tarball-ttl 0 "(builtins.fetchMercurial file://$repo)")
# Fetching with a explicit hash should succeed.
path2=$(nix eval --tarball-ttl 0 --raw "(builtins.fetchMercurial { url = file://$repo; rev = \"$rev2\"; }).outPath")
[[ $path = $path2 ]]
path2=$(nix eval --tarball-ttl 0 --raw "(builtins.fetchMercurial { url = file://$repo; rev = \"$rev1\"; }).outPath")
[[ $(cat $path2/hello) = utrecht ]]
mv ${repo}-tmp $repo
# Using a clean working tree should produce the same result.
path2=$(nix eval --raw "(builtins.fetchMercurial $repo).outPath")
[[ $path = $path2 ]]
# Using an unclean tree should yield the tracked but uncommitted changes.
mkdir $repo/dir1 $repo/dir2
echo foo > $repo/dir1/foo
echo bar > $repo/bar
echo bar > $repo/dir2/bar
hg add --cwd $repo dir1/foo
hg rm --cwd $repo hello
path2=$(nix eval --raw "(builtins.fetchMercurial $repo).outPath")
[ ! -e $path2/hello ]
[ ! -e $path2/bar ]
[ ! -e $path2/dir2/bar ]
[[ $(cat $path2/dir1/foo) = foo ]]
[[ $(nix eval --raw "(builtins.fetchMercurial $repo).rev") = 0000000000000000000000000000000000000000 ]]
# ... unless we're using an explicit rev.
path3=$(nix eval --raw "(builtins.fetchMercurial { url = $repo; rev = \"default\"; }).outPath")
[[ $path = $path3 ]]
# Committing should not affect the store path.
hg commit --cwd $repo -m 'Bla3'
path4=$(nix eval --tarball-ttl 0 --raw "(builtins.fetchMercurial file://$repo).outPath")
[[ $path2 = $path4 ]]