nix-super/tests/functional/tarball.sh
Eelco Dolstra ff107d9d03 Input::fetchToStore(): Don't try to substitute
Having a narHash doesn't mean that we have the other attributes
returned by the fetcher (such as lastModified or rev). For instance,

   $ nix flake metadata github:NixOS/patchelf/7c2f768bf9601268a4e71c2ebe91e2011918a70f
   Last modified: 2024-01-15 10:51:22

but

   $ nix flake metadata github:NixOS/patchelf/7c2f768bf9601268a4e71c2ebe91e2011918a70f?narHash=sha256-PPXqKY2hJng4DBVE0I4xshv/vGLUskL7jl53roB8UdU%3D
   (does not print a "Last modified")

The latter only happens if the store path already exists or is
substitutable, which made this impure behaviour unpredictable.

Fixes #10601.
2024-04-26 16:41:33 +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/
touch -d '@1000000000' $tarroot $tarroot/*
hash=$(nix hash path $tarroot)
test_tarball() {
local ext="$1"
local compressor="$2"
tarball=$TEST_ROOT/tarball.tar$ext
(cd $TEST_ROOT && GNUTAR_REPRODUCIBLE= tar --mtime=$tarroot/default.nix --owner=0 --group=0 --numeric-owner --sort=name -c -f - tarball) | $compressor > $tarball
nix-env -f file://$tarball -qa --out-path | grepQuiet 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)"
# Do not re-fetch paths already present
nix-build -o $TEST_ROOT/result -E "import (fetchTarball { url = file:///does-not-exist/must-remain-unused/$tarball; sha256 = \"$hash\"; })"
nix-build -o $TEST_ROOT/result -E "import (fetchTree file://$tarball)"
nix-build -o $TEST_ROOT/result -E "import (fetchTree { type = \"tarball\"; url = file://$tarball; })"
nix-build -o $TEST_ROOT/result -E "import (fetchTree { type = \"tarball\"; url = file://$tarball; narHash = \"$hash\"; })"
[[ $(nix eval --impure --expr "(fetchTree file://$tarball).lastModified") = 1000000000 ]]
nix-instantiate --strict --eval -E "!((import (fetchTree { type = \"tarball\"; url = file://$tarball; narHash = \"$hash\"; })) ? submodules)" >&2
nix-instantiate --strict --eval -E "!((import (fetchTree { type = \"tarball\"; url = file://$tarball; narHash = \"$hash\"; })) ? submodules)" 2>&1 | grep 'true'
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=.
# Ensure that the `name` attribute isnt accepted as that would mess
# with the content-addressing
(! nix-instantiate --eval -E "fetchTree { type = \"tarball\"; url = file://$tarball; narHash = \"$hash\"; name = \"foo\"; }")
}
test_tarball '' cat
test_tarball .xz xz
test_tarball .gz gzip