forked from lix-project/lix
Merge pull request #4980 from Ma27/file-attr-completion
libcmd/installables: implement completion for Nix expressions passed via `-f`
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commit
0a8845720e
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@ -171,14 +171,50 @@ Strings SourceExprCommand::getDefaultFlakeAttrPathPrefixes()
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void SourceExprCommand::completeInstallable(std::string_view prefix)
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void SourceExprCommand::completeInstallable(std::string_view prefix)
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{
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{
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if (file) return; // FIXME
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if (file) {
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evalSettings.pureEval = false;
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auto state = getEvalState();
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Expr *e = state->parseExprFromFile(
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resolveExprPath(state->checkSourcePath(lookupFileArg(*state, *file)))
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);
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Value root;
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state->eval(e, root);
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auto autoArgs = getAutoArgs(*state);
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std::string prefix_ = std::string(prefix);
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auto sep = prefix_.rfind('.');
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std::string searchWord;
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if (sep != std::string::npos) {
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searchWord = prefix_.substr(sep, std::string::npos);
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prefix_ = prefix_.substr(0, sep);
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} else {
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searchWord = prefix_;
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prefix_ = "";
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}
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Value &v1(*findAlongAttrPath(*state, prefix_, *autoArgs, root).first);
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state->forceValue(v1);
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Value v2;
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state->autoCallFunction(*autoArgs, v1, v2);
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if (v2.type() == nAttrs) {
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for (auto & i : *v2.attrs) {
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std::string name = i.name;
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if (name.find(searchWord) == 0) {
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completions->add(i.name);
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}
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}
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}
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} else {
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completeFlakeRefWithFragment(
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completeFlakeRefWithFragment(
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getEvalState(),
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getEvalState(),
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lockFlags,
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lockFlags,
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getDefaultFlakeAttrPathPrefixes(),
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getDefaultFlakeAttrPathPrefixes(),
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getDefaultFlakeAttrPaths(),
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getDefaultFlakeAttrPaths(),
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prefix);
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prefix);
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}
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}
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}
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void completeFlakeRefWithFragment(
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void completeFlakeRefWithFragment(
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