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https://github.com/privatevoid-net/nix-super.git
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Refactor: extract source file patching
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parent
0c9c7d5d44
commit
ab3c6a2295
2 changed files with 44 additions and 33 deletions
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@ -542,48 +542,59 @@ std::optional<Path> getSourceFilePathFromInStorePath(Store & store, const Path &
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return betterFilePath;
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}
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std::tuple<std::string, FlakeRef, InstallableValue::DerivationInfo> toDerivationImpl(InstallableFlake & flake) {
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auto lockedFlake = flake.getLockedFlake();
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auto cache = openEvalCache(*flake.state, lockedFlake);
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auto root = cache->getRoot();
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for (auto & attrPath : flake.getActualAttrPaths()) {
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auto attr = root->findAlongAttrPath(
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parseAttrPath(*flake.state, attrPath),
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true
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);
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if (!attr) continue;
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if (!attr->isDerivation())
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throw Error("flake output attribute '%s' is not a derivation", attrPath);
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auto drvPath = attr->forceDerivation();
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auto drvInfo = InstallableValue::DerivationInfo{
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std::move(drvPath),
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flake.state->store->maybeParseStorePath(attr->getAttr(flake.state->sOutPath)->getString()),
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attr->getAttr(flake.state->sOutputName)->getString()
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};
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return {attrPath, lockedFlake->flake.lockedRef, std::move(drvInfo)};
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}
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throw Error("flake '%s' does not provide attribute %s",
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flake.flakeRef, showAttrPaths(flake.getActualAttrPaths()));
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}
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std::tuple<std::string, FlakeRef, InstallableValue::DerivationInfo> InstallableFlake::toDerivation()
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{
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template <class F>
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auto patchErrorSourceFile(Store & store, const fetchers::Input & flakeInput, F && func) {
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try {
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auto lockedFlake = getLockedFlake();
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auto cache = openEvalCache(*state, lockedFlake);
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auto root = cache->getRoot();
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for (auto & attrPath : getActualAttrPaths()) {
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auto attr = root->findAlongAttrPath(
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parseAttrPath(*state, attrPath),
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true
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);
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if (!attr) continue;
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if (!attr->isDerivation())
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throw Error("flake output attribute '%s' is not a derivation", attrPath);
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auto drvPath = attr->forceDerivation();
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auto drvInfo = DerivationInfo{
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std::move(drvPath),
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state->store->maybeParseStorePath(attr->getAttr(state->sOutPath)->getString()),
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attr->getAttr(state->sOutputName)->getString()
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};
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return {attrPath, lockedFlake->flake.lockedRef, std::move(drvInfo)};
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}
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return func();
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} catch (BaseError & e) {
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if (auto pos = e.info().errPos) {
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if (auto sourceFilePath = getSourceFilePathFromInStorePath(*state->store, pos->file, flakeRef.input)) {
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e.setBetterErrPosFile(*sourceFilePath);
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if (auto sourceFilePath = getSourceFilePathFromInStorePath(store, pos->file, flakeInput)) {
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e.replacePosFile(*sourceFilePath);
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}
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}
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throw;
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}
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}
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}
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throw Error("flake '%s' does not provide attribute %s",
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flakeRef, showAttrPaths(getActualAttrPaths()));
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std::tuple<std::string, FlakeRef, InstallableValue::DerivationInfo> InstallableFlake::toDerivation()
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{
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return patchErrorSourceFile(*state->store, flakeRef.input, [&] {
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return toDerivationImpl(*this);
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});
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}
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std::vector<InstallableValue::DerivationInfo> InstallableFlake::toDerivations()
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@ -165,7 +165,7 @@ public:
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const string & msg() const { return calcWhat(); }
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const ErrorInfo & info() const { calcWhat(); return err; }
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void setBetterErrPosFile(std::string file) {
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void replacePosFile(std::string file) {
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if (err.errPos) {
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err.errPos->file = std::move(file);
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}
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