24 lines
594 B
Nix
24 lines
594 B
Nix
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{
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squashfsTools,
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closureInfo,
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runCommand
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}:
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{
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filename ? "image",
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storeContents ? [],
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comp ? "xz -Xdict-size 100%"
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}:
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let
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compFlag = if comp == null then "-no-compression" else "-comp ${comp}";
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in runCommand "${filename}.squashfs" {
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nativeBuildInputs = [ squashfsTools ];
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} ''
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closureInfo=${closureInfo { rootPaths = storeContents; }}
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cp $closureInfo/registration nix-path-registration
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mksquashfs nix-path-registration $(cat $closureInfo/store-paths) $out \
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-no-hardlinks -keep-as-directory -all-root -b 1048576 ${compFlag} \
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-processors $NIX_BUILD_CORES
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''
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