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lix/tests/tarball.sh
Eelco Dolstra 462421d345 Backport libfetchers from the flakes branch
This provides a pluggable mechanism for defining new fetchers. It adds
a builtin function 'fetchTree' that generalizes existing fetchers like
'fetchGit', 'fetchMercurial' and 'fetchTarball'. 'fetchTree' takes a
set of attributes, e.g.

  fetchTree {
    type = "git";
    url = "https://example.org/repo.git";
    ref = "some-branch";
    rev = "abcdef...";
  }

The existing fetchers are just wrappers around this. Note that the
input attributes to fetchTree are the same as flake input
specifications and flake lock file entries.

All fetchers share a common cache stored in
~/.cache/nix/fetcher-cache-v1.sqlite. This replaces the ad hoc caching
mechanisms in fetchGit and download.cc (e.g. ~/.cache/nix/{tarballs,git-revs*}).

This also adds support for Git worktrees (c169ea5904).
2020-04-07 09:03:14 +02:00

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source common.sh
clearStore
rm -rf $TEST_HOME
tarroot=$TEST_ROOT/tarball
rm -rf $tarroot
mkdir -p $tarroot
cp dependencies.nix $tarroot/default.nix
cp config.nix dependencies.builder*.sh $tarroot/
hash=$(nix hash-path $tarroot)
test_tarball() {
local ext="$1"
local compressor="$2"
tarball=$TEST_ROOT/tarball.tar$ext
(cd $TEST_ROOT && tar c tarball) | $compressor > $tarball
nix-env -f file://$tarball -qa --out-path | grep -q dependencies
nix-build -o $TEST_ROOT/result file://$tarball
nix-build -o $TEST_ROOT/result '<foo>' -I foo=file://$tarball
nix-build -o $TEST_ROOT/result -E "import (fetchTarball file://$tarball)"
nix-build --experimental-features flakes -o $TEST_ROOT/result -E "import (fetchTree file://$tarball)"
nix-build --experimental-features flakes -o $TEST_ROOT/result -E "import (fetchTree { type = \"tarball\"; url = file://$tarball; })"
nix-build --experimental-features flakes -o $TEST_ROOT/result -E "import (fetchTree { type = \"tarball\"; url = file://$tarball; narHash = \"$hash\"; })"
nix-build --experimental-features flakes -o $TEST_ROOT/result -E "import (fetchTree { type = \"tarball\"; url = file://$tarball; narHash = \"sha256-xdKv2pq/IiwLSnBBJXW8hNowI4MrdZfW+SYqDQs7Tzc=\"; })" 2>&1 | grep 'NAR hash mismatch in input'
nix-instantiate --eval -E '1 + 2' -I fnord=file://no-such-tarball.tar$ext
nix-instantiate --eval -E 'with <fnord/xyzzy>; 1 + 2' -I fnord=file://no-such-tarball$ext
(! nix-instantiate --eval -E '<fnord/xyzzy> 1' -I fnord=file://no-such-tarball$ext)
nix-instantiate --eval -E '<fnord/config.nix>' -I fnord=file://no-such-tarball$ext -I fnord=.
}
test_tarball '' cat
test_tarball .xz xz
test_tarball .gz gzip
rm -rf $TEST_ROOT/tmp
mkdir -p $TEST_ROOT/tmp
(! TMPDIR=$TEST_ROOT/tmp XDG_RUNTIME_DIR=$TEST_ROOT/tmp nix-env -f file://$(pwd)/bad.tar.xz -qa --out-path)
(! [ -e $TEST_ROOT/tmp/bad ])