34 lines
1.0 KiB
Nix
34 lines
1.0 KiB
Nix
{ closureInfo, runCommand, nix, jq, path }:
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let
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map-squash = ./map-squash.nix;
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mkSquashfsManifest = { name, storeContents }:
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runCommand "${name}-squashfs-manifests" {
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buildInputs = [ nix jq ];
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requiredSystemFeatures = [ "recursive-nix" ];
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exportReferencesGraph = [ "root" storeContents ];
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NIX_PATH = "nixpkgs=${path}";
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outputs = [ "out" "manifest" ];
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closureInfo = closureInfo { rootPaths = storeContents; };
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} ''
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cat root | grep /nix/store | sort | uniq | jq -R . | jq -s . > paths.json
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nix-build ${map-squash} --arg pathsJson ./paths.json
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touch $out
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for f in $(cat result); do
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find "$f" -type f >> $out
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done
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mkdir $manifest
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touch $manifest/squashes
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for f in $(cat "$out"); do
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prefix=$(echo "$f" | head -c20)
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suffix=$(echo "$f" | tail -c+21)
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echo "$prefix $suffix" >> $manifest/squashes
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done
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cat $closureInfo/registration | gzip -9 > $manifest/registration.gz
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'';
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in
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mkSquashfsManifest
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