58 lines
2.0 KiB
Nix
58 lines
2.0 KiB
Nix
{ hello, checkpointBuildTools, runCommand, texinfo, stdenv, rsync }:
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let
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baseHelloArtifacts = checkpointBuildTools.prepareCheckpointBuild hello;
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patchedHello = hello.overrideAttrs (old: {
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buildInputs = [ texinfo ];
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src = runCommand "patch-hello-src" { } ''
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mkdir -p $out
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cd $out
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tar xf ${hello.src} --strip-components=1
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patch -p1 < ${./hello.patch}
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'';
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});
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checkpointBuiltHello = checkpointBuildTools.mkCheckpointBuild patchedHello baseHelloArtifacts;
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checkpointBuiltHelloWithCheck = checkpointBuiltHello.overrideAttrs (old: {
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doCheck = true;
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checkPhase = ''
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echo "checking if unchanged source file is not recompiled"
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[ "$(stat --format="%Y" lib/exitfail.o)" = "$(stat --format="%Y" ${baseHelloArtifacts}/outputs/lib/exitfail.o)" ]
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'';
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});
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baseHelloRemoveFileArtifacts = checkpointBuildTools.prepareCheckpointBuild (hello.overrideAttrs (old: {
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patches = [ ./hello-additionalFile.patch ];
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}));
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preparedHelloRemoveFileSrc = runCommand "patch-hello-src" { } ''
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mkdir -p $out
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cd $out
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tar xf ${hello.src} --strip-components=1
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patch -p1 < ${./hello-additionalFile.patch}
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'';
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patchedHelloRemoveFile = hello.overrideAttrs (old: {
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buildInputs = [ texinfo ];
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src = runCommand "patch-hello-src" { } ''
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mkdir -p $out
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cd $out
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${rsync}/bin/rsync -cutU --chown=$USER:$USER --chmod=+w -r ${preparedHelloRemoveFileSrc}/* .
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patch -p1 < ${./hello-removeFile.patch}
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'';
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});
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checkpointBuiltHelloWithRemovedFile = checkpointBuildTools.mkCheckpointBuild patchedHelloRemoveFile baseHelloRemoveFileArtifacts;
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in
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stdenv.mkDerivation {
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name = "patched-hello-returns-correct-output";
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buildCommand = ''
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touch $out
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echo "testing output of hello binary"
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[ "$(${checkpointBuiltHelloWithCheck}/bin/hello)" = "Hello, incremental world!" ]
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echo "testing output of hello with removed file"
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[ "$(${checkpointBuiltHelloWithRemovedFile}/bin/hello)" = "Hello, incremental world!" ]
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'';
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}
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