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nix/tests/functional/tarball.sh
Jörg Thalheim 8cea1fbd97 src/nix/prefetch: fix prefetch containing current directory instead of tarball
When --unpack was used the nix would add the current directory to the
nix store instead of the content of unpacked.
The reason for this is that std::distance already consumes the iterator.
To fix this we re-instantiate the directory iterator in case the
directory only contains a single entry.
2024-07-05 19:18:49 +02:00

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#!/usr/bin/env bash
source common.sh
clearStoreIfPossible
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\"; })"
# Do not re-fetch paths already present
nix-build -o $TEST_ROOT/result -E "import (fetchTree { type = \"tarball\"; url = file:///does-not-exist/must-remain-unused/$tarball; narHash = \"$hash\"; })"
expectStderr 102 nix-build -o $TEST_ROOT/result -E "import (fetchTree { type = \"tarball\"; url = file://$tarball; narHash = \"sha256-xdKv2pq/IiwLSnBBJXW8hNowI4MrdZfW+SYqDQs7Tzc=\"; })" | grep 'NAR hash mismatch in input'
[[ $(nix eval --impure --expr "(fetchTree file://$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\"; }")
store_path=$(nix store prefetch-file --json "file://$tarball" | jq -r .storePath)
if ! cmp -s "$store_path" "$tarball"; then
echo "prefetched tarball differs from original: $store_path vs $tarball" >&2
exit 1
fi
store_path2=$(nix store prefetch-file --json --unpack "file://$tarball" | jq -r .storePath)
diff_output=$(diff -r "$store_path2" "$tarroot")
if [ -n "$diff_output" ]; then
echo "prefetched tarball differs from original: $store_path2 vs $tarroot" >&2
echo "$diff_output"
exit 1
fi
}
test_tarball '' cat
test_tarball .xz xz
test_tarball .gz gzip