30 lines
537 B
Nix
30 lines
537 B
Nix
{
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stdenv
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, bash
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}:
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{
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program
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, outputDir ? "."
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}:
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stdenv.mkDerivation {
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name = "statspy";
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preferLocalBuild = true;
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phases = [ "installPhase" ];
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programPath = "/bin/${name}";
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installPhase = ''
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mkdir -p $out/bin
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cat > $out/bin/${name} <<EOF
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#!${bash}/bin/bash
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mkdir -p ${outputDir}
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cat /proc/[0-9]*/stat | sort -n > ${outputDir}/statspy.\$(date +%s.%3N).begin
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${program}
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cat /proc/[0-9]*/stat | sort -n > ${outputDir}/statspy.\$(date +%s.%3N).end
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EOF
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chmod +x $out/bin/${name}
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'';
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}
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