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The .git/refs/heads directory might be empty for a valid usable git repository. This often happens in CI environments, which might only fetch commits, not branches. Therefore instead we let git itself check if HEAD points to something that looks like a commit. fixes #5302
204 lines
8.3 KiB
Bash
204 lines
8.3 KiB
Bash
source common.sh
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if [[ -z $(type -p git) ]]; then
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echo "Git not installed; skipping Git tests"
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exit 99
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fi
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clearStore
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repo=$TEST_ROOT/git
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export _NIX_FORCE_HTTP=1
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rm -rf $repo ${repo}-tmp $TEST_HOME/.cache/nix $TEST_ROOT/worktree $TEST_ROOT/shallow
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git init $repo
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git -C $repo config user.email "foobar@example.com"
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git -C $repo config user.name "Foobar"
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echo utrecht > $repo/hello
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touch $repo/.gitignore
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git -C $repo add hello .gitignore
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git -C $repo commit -m 'Bla1'
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rev1=$(git -C $repo rev-parse HEAD)
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echo world > $repo/hello
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git -C $repo commit -m 'Bla2' -a
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git -C $repo worktree add $TEST_ROOT/worktree
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echo hello >> $TEST_ROOT/worktree/hello
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rev2=$(git -C $repo rev-parse HEAD)
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# Fetch a worktree
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unset _NIX_FORCE_HTTP
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path0=$(nix eval --impure --raw --expr "(builtins.fetchGit file://$TEST_ROOT/worktree).outPath")
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path0_=$(nix eval --impure --raw --expr "(builtins.fetchTree { type = \"git\"; url = file://$TEST_ROOT/worktree; }).outPath")
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[[ $path0 = $path0_ ]]
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export _NIX_FORCE_HTTP=1
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[[ $(tail -n 1 $path0/hello) = "hello" ]]
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# Fetch the default branch.
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path=$(nix eval --impure --raw --expr "(builtins.fetchGit file://$repo).outPath")
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[[ $(cat $path/hello) = world ]]
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# Fetch a rev from another branch
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git -C $repo checkout -b devtest
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echo "different file" >> $TEST_ROOT/git/differentbranch
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git -C $repo add differentbranch
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git -C $repo commit -m 'Test2'
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git -C $repo checkout master
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devrev=$(git -C $repo rev-parse devtest)
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out=$(nix eval --impure --raw --expr "builtins.fetchGit { url = file://$repo; rev = \"$devrev\"; }" 2>&1) || status=$?
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[[ $status == 1 ]]
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[[ $out =~ 'Cannot find Git revision' ]]
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[[ $(nix eval --raw --expr "builtins.readFile (builtins.fetchGit { url = file://$repo; rev = \"$devrev\"; allRefs = true; } + \"/differentbranch\")") = 'different file' ]]
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# In pure eval mode, fetchGit without a revision should fail.
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[[ $(nix eval --impure --raw --expr "builtins.readFile (fetchGit file://$repo + \"/hello\")") = world ]]
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(! nix eval --raw --expr "builtins.readFile (fetchGit file://$repo + \"/hello\")")
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# Fetch using an explicit revision hash.
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path2=$(nix eval --raw --expr "(builtins.fetchGit { url = file://$repo; rev = \"$rev2\"; }).outPath")
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[[ $path = $path2 ]]
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# In pure eval mode, fetchGit with a revision should succeed.
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[[ $(nix eval --raw --expr "builtins.readFile (fetchGit { url = file://$repo; rev = \"$rev2\"; } + \"/hello\")") = world ]]
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# Fetch again. This should be cached.
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mv $repo ${repo}-tmp
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path2=$(nix eval --impure --raw --expr "(builtins.fetchGit file://$repo).outPath")
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[[ $path = $path2 ]]
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[[ $(nix eval --impure --expr "(builtins.fetchGit file://$repo).revCount") = 2 ]]
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[[ $(nix eval --impure --raw --expr "(builtins.fetchGit file://$repo).rev") = $rev2 ]]
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[[ $(nix eval --impure --raw --expr "(builtins.fetchGit file://$repo).shortRev") = ${rev2:0:7} ]]
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# Fetching with a explicit hash should succeed.
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path2=$(nix eval --refresh --raw --expr "(builtins.fetchGit { url = file://$repo; rev = \"$rev2\"; }).outPath")
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[[ $path = $path2 ]]
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path2=$(nix eval --refresh --raw --expr "(builtins.fetchGit { url = file://$repo; rev = \"$rev1\"; }).outPath")
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[[ $(cat $path2/hello) = utrecht ]]
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mv ${repo}-tmp $repo
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# Using a clean working tree should produce the same result.
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path2=$(nix eval --impure --raw --expr "(builtins.fetchGit $repo).outPath")
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[[ $path = $path2 ]]
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# Using an unclean tree should yield the tracked but uncommitted changes.
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mkdir $repo/dir1 $repo/dir2
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echo foo > $repo/dir1/foo
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echo bar > $repo/bar
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echo bar > $repo/dir2/bar
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git -C $repo add dir1/foo
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git -C $repo rm hello
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unset _NIX_FORCE_HTTP
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path2=$(nix eval --impure --raw --expr "(builtins.fetchGit $repo).outPath")
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[ ! -e $path2/hello ]
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[ ! -e $path2/bar ]
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[ ! -e $path2/dir2/bar ]
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[ ! -e $path2/.git ]
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[[ $(cat $path2/dir1/foo) = foo ]]
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[[ $(nix eval --impure --raw --expr "(builtins.fetchGit $repo).rev") = 0000000000000000000000000000000000000000 ]]
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# ... unless we're using an explicit ref or rev.
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path3=$(nix eval --impure --raw --expr "(builtins.fetchGit { url = $repo; ref = \"master\"; }).outPath")
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[[ $path = $path3 ]]
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path3=$(nix eval --raw --expr "(builtins.fetchGit { url = $repo; rev = \"$rev2\"; }).outPath")
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[[ $path = $path3 ]]
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# Committing should not affect the store path.
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git -C $repo commit -m 'Bla3' -a
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path4=$(nix eval --impure --refresh --raw --expr "(builtins.fetchGit file://$repo).outPath")
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[[ $path2 = $path4 ]]
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nix eval --impure --raw --expr "(builtins.fetchGit { url = $repo; rev = \"$rev2\"; narHash = \"sha256-B5yIPHhEm0eysJKEsO7nqxprh9vcblFxpJG11gXJus1=\"; }).outPath" || status=$?
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[[ "$status" = "102" ]]
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path5=$(nix eval --impure --raw --expr "(builtins.fetchGit { url = $repo; rev = \"$rev2\"; narHash = \"sha256-Hr8g6AqANb3xqX28eu1XnjK/3ab8Gv6TJSnkb1LezG9=\"; }).outPath")
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[[ $path = $path5 ]]
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# tarball-ttl should be ignored if we specify a rev
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echo delft > $repo/hello
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git -C $repo add hello
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git -C $repo commit -m 'Bla4'
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rev3=$(git -C $repo rev-parse HEAD)
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nix eval --tarball-ttl 3600 --expr "builtins.fetchGit { url = $repo; rev = \"$rev3\"; }" >/dev/null
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# Update 'path' to reflect latest master
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path=$(nix eval --impure --raw --expr "(builtins.fetchGit file://$repo).outPath")
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# Check behavior when non-master branch is used
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git -C $repo checkout $rev2 -b dev
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echo dev > $repo/hello
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# File URI uses dirty tree unless specified otherwise
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path2=$(nix eval --impure --raw --expr "(builtins.fetchGit file://$repo).outPath")
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[ $(cat $path2/hello) = dev ]
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# Using local path with branch other than 'master' should work when clean or dirty
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path3=$(nix eval --impure --raw --expr "(builtins.fetchGit $repo).outPath")
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# (check dirty-tree handling was used)
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[[ $(nix eval --impure --raw --expr "(builtins.fetchGit $repo).rev") = 0000000000000000000000000000000000000000 ]]
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[[ $(nix eval --impure --raw --expr "(builtins.fetchGit $repo).shortRev") = 0000000 ]]
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# Committing shouldn't change store path, or switch to using 'master'
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git -C $repo commit -m 'Bla5' -a
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path4=$(nix eval --impure --raw --expr "(builtins.fetchGit $repo).outPath")
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[[ $(cat $path4/hello) = dev ]]
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[[ $path3 = $path4 ]]
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# Confirm same as 'dev' branch
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path5=$(nix eval --impure --raw --expr "(builtins.fetchGit { url = $repo; ref = \"dev\"; }).outPath")
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[[ $path3 = $path5 ]]
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# Nuke the cache
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rm -rf $TEST_HOME/.cache/nix
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# Try again, but without 'git' on PATH. This should fail.
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NIX=$(command -v nix)
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(! PATH= $NIX eval --impure --raw --expr "(builtins.fetchGit { url = $repo; ref = \"dev\"; }).outPath" )
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# Try again, with 'git' available. This should work.
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path5=$(nix eval --impure --raw --expr "(builtins.fetchGit { url = $repo; ref = \"dev\"; }).outPath")
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[[ $path3 = $path5 ]]
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# Fetching from a repo with only a specific revision and no branches should
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# not fall back to copying files and record correct revision information. See: #5302
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mkdir $TEST_ROOT/minimal
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git -C $TEST_ROOT/minimal init
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git -C $TEST_ROOT/minimal fetch $repo $rev2
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git -C $TEST_ROOT/minimal checkout $rev2
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[[ $(nix eval --impure --raw --expr "(builtins.fetchGit { url = $TEST_ROOT/minimal; }).rev") = $rev2 ]]
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# Fetching a shallow repo shouldn't work by default, because we can't
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# return a revCount.
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git clone --depth 1 file://$repo $TEST_ROOT/shallow
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(! nix eval --impure --raw --expr "(builtins.fetchGit { url = $TEST_ROOT/shallow; ref = \"dev\"; }).outPath")
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# But you can request a shallow clone, which won't return a revCount.
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path6=$(nix eval --impure --raw --expr "(builtins.fetchTree { type = \"git\"; url = \"file://$TEST_ROOT/shallow\"; ref = \"dev\"; shallow = true; }).outPath")
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[[ $path3 = $path6 ]]
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[[ $(nix eval --impure --expr "(builtins.fetchTree { type = \"git\"; url = \"file://$TEST_ROOT/shallow\"; ref = \"dev\"; shallow = true; }).revCount or 123") == 123 ]]
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# Explicit ref = "HEAD" should work, and produce the same outPath as without ref
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path7=$(nix eval --impure --raw --expr "(builtins.fetchGit { url = \"file://$repo\"; ref = \"HEAD\"; }).outPath")
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path8=$(nix eval --impure --raw --expr "(builtins.fetchGit { url = \"file://$repo\"; }).outPath")
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[[ $path7 = $path8 ]]
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# ref = "HEAD" should fetch the HEAD revision
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rev4=$(git -C $repo rev-parse HEAD)
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rev4_nix=$(nix eval --impure --raw --expr "(builtins.fetchGit { url = \"file://$repo\"; ref = \"HEAD\"; }).rev")
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[[ $rev4 = $rev4_nix ]]
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# The name argument should be handled
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path9=$(nix eval --impure --raw --expr "(builtins.fetchGit { url = \"file://$repo\"; ref = \"HEAD\"; name = \"foo\"; }).outPath")
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[[ $path9 =~ -foo$ ]]
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