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Tarball trees: Propagate lastModified

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This makes them behave consistently with GitHub/GitLab flakes.

(cherry picked from commit 81045f243f)
(cherry picked from commit eb21904198)
This commit is contained in:
Eelco Dolstra 2023-08-22 19:29:25 +02:00
parent 38f4fe04e3
commit fb0b056d2f
2 changed files with 7 additions and 1 deletions
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5
src/libfetchers/tarball.cc
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@ -230,7 +230,7 @@ struct CurlInputScheme : InputScheme
if (type != inputType()) return {};
// FIXME: some of these only apply to TarballInputScheme.
std::set<std::string> allowedNames = {"type", "url", "narHash", "name", "unpack", "rev", "revCount"};
std::set<std::string> allowedNames = {"type", "url", "narHash", "name", "unpack", "rev", "revCount", "lastModified"};
for (auto & [name, value] : attrs)
if (!allowedNames.count(name))
throw Error("unsupported %s input attribute '%s'", *type, name);
@ -308,6 +308,9 @@ struct TarballInputScheme : CurlInputScheme
input = immutableInput;
}
if (result.lastModified && !input.attrs.contains("lastModified"))
input.attrs.insert_or_assign("lastModified", uint64_t(result.lastModified));
return {result.tree.storePath, std::move(input)};
}
};

3
tests/tarball.sh
View File

@ -9,6 +9,7 @@ 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)
@ -36,6 +37,8 @@ test_tarball() {
nix-build -o $TEST_ROOT/result -E "import (fetchTree { type = \"tarball\"; url = file:///does-not-exist/must-remain-unused/$tarball; narHash = \"$hash\"; })"
nix-build -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'
[[ $(nix eval --impure --expr "(fetchTree file://$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'