66a3ac6a56
Querying all substitutable paths via "nix-env -qas" is potentially hard on a server, since it involves sending thousands of HEAD requests. So a binary cache must now have a meta-info file named "nix-cache-info" that specifies whether the server wants this. It also specifies the store prefix so that we don't send useless queries to a binary cache for a different store prefix.
36 lines
883 B
Bash
36 lines
883 B
Bash
source common.sh
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clearStore
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# Create the binary cache.
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cacheDir=$TEST_ROOT/binary-cache
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rm -rf $cacheDir
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outPath=$(nix-build dependencies.nix --no-out-link)
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nix-push --dest $cacheDir $outPath
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# By default, a binary cache doesn't support "nix-env -qas", but does
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# support installation.
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clearStore
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rm -f $NIX_STATE_DIR/binary-cache*
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NIX_BINARY_CACHES="file://$cacheDir" nix-env -f dependencies.nix -qas \* | grep -- "---"
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NIX_BINARY_CACHES="file://$cacheDir" nix-store -r $outPath
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# But with the right configuration, "nix-env -qas" should also work.
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clearStore
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rm -f $NIX_STATE_DIR/binary-cache*
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echo "WantMassQuery: 1" >> $cacheDir/nix-cache-info
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NIX_BINARY_CACHES="file://$cacheDir" nix-env -f dependencies.nix -qas \* | grep -- "--S"
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NIX_BINARY_CACHES="file://$cacheDir" nix-store -r $outPath
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nix-store --check-validity $outPath
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nix-store -qR $outPath | grep input-2
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