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ea30f152b7
When explicitly requested by the caller, as suggested in the meeting (https://github.com/NixOS/nix/pull/8090#issuecomment-1531139324) > @edolstra: { toPath } vs { fromPath } is too implicit I've opted for the `inputAddressed = true` requirement, because it we did not agree on renaming the path attributes. > @roberth: more explicit > @edolstra: except for the direction; not immediately clear in which direction the rewriting happens This is in fact the most explicit syntax and a bit redundant, which is good, because that redundancy lets us deliver an error message that reminds expression authors that CA provides a better experience to their users.
91 lines
2.4 KiB
Bash
91 lines
2.4 KiB
Bash
source common.sh
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enableFeatures "fetch-closure"
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clearStore
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clearCacheCache
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# Old daemons don't properly zero out the self-references when
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# calculating the CA hashes, so this breaks `nix store
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# make-content-addressed` which expects the client and the daemon to
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# compute the same hash
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requireDaemonNewerThan "2.16.0pre20230524"
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# Initialize binary cache.
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nonCaPath=$(nix build --json --file ./dependencies.nix --no-link | jq -r .[].outputs.out)
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caPath=$(nix store make-content-addressed --json $nonCaPath | jq -r '.rewrites | map(.) | .[]')
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nix copy --to file://$cacheDir $nonCaPath
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# Test basic fetchClosure rewriting from non-CA to CA.
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clearStore
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[ ! -e $nonCaPath ]
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[ ! -e $caPath ]
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[[ $(nix eval -v --raw --expr "
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builtins.fetchClosure {
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fromStore = \"file://$cacheDir\";
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fromPath = $nonCaPath;
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toPath = $caPath;
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}
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") = $caPath ]]
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[ ! -e $nonCaPath ]
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[ -e $caPath ]
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if [[ "$NIX_REMOTE" != "daemon" ]]; then
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# We can use non-CA paths when we ask explicitly.
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[[ $(nix eval --raw --no-require-sigs --expr "
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builtins.fetchClosure {
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fromStore = \"file://$cacheDir\";
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fromPath = $nonCaPath;
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inputAddressed = true;
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}
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") = $nonCaPath ]]
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[ -e $nonCaPath ]
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# .. but only if we ask explicitly.
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expectStderr 1 nix eval --raw --no-require-sigs --expr "
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builtins.fetchClosure {
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fromStore = \"file://$cacheDir\";
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fromPath = $nonCaPath;
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}
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" | grepQuiet -E "The .fromPath. value .* is input addressed, but input addressing was not requested. If you do intend to return an input addressed store path, add .inputAddressed = true;. to the .fetchClosure. arguments."
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[ -e $nonCaPath ]
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fi
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# 'toPath' set to empty string should fail but print the expected path.
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expectStderr 1 nix eval -v --json --expr "
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builtins.fetchClosure {
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fromStore = \"file://$cacheDir\";
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fromPath = $nonCaPath;
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toPath = \"\";
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}
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" | grep "error: rewriting.*$nonCaPath.*yielded.*$caPath"
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# If fromPath is CA, then toPath isn't needed.
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nix copy --to file://$cacheDir $caPath
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[[ $(nix eval -v --raw --expr "
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builtins.fetchClosure {
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fromStore = \"file://$cacheDir\";
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fromPath = $caPath;
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}
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") = $caPath ]]
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# Check that URL query parameters aren't allowed.
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clearStore
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narCache=$TEST_ROOT/nar-cache
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rm -rf $narCache
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(! nix eval -v --raw --expr "
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builtins.fetchClosure {
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fromStore = \"file://$cacheDir?local-nar-cache=$narCache\";
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fromPath = $caPath;
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}
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")
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(! [ -e $narCache ])
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