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Add completion for --update-input

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This commit is contained in:
Eelco Dolstra 2020-06-08 16:20:00 +02:00
parent 9ef6048d78
commit 6470450ab4
7 changed files with 45 additions and 7 deletions
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25
src/nix/installables.cc
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@ -18,6 +18,17 @@
namespace nix {
void completeFlakeInputPath(
ref<EvalState> evalState,
const FlakeRef & flakeRef,
std::string_view prefix)
{
auto flake = flake::getFlake(*evalState, flakeRef, true);
for (auto & input : flake.inputs)
if (hasPrefix(input.first, prefix))
completions->insert(input.first);
}
MixFlakeOptions::MixFlakeOptions()
{
addFlag({
@ -56,6 +67,10 @@ MixFlakeOptions::MixFlakeOptions()
.labels = {"input-path"},
.handler = {[&](std::string s) {
lockFlags.inputUpdates.insert(flake::parseInputPath(s));
}},
.completer = {[&](size_t, std::string_view prefix) {
if (auto flakeRef = getFlakeRefForCompletion())
completeFlakeInputPath(getEvalState(), *flakeRef, prefix);
}}
});
@ -707,6 +722,16 @@ void InstallablesCommand::prepare()
installables = parseInstallables(getStore(), _installables);
}
std::optional<FlakeRef> InstallablesCommand::getFlakeRefForCompletion()
{
if (_installables.empty()) {
if (useDefaultInstallables())
return parseFlakeRef(".", absPath("."));
return {};
}
return parseFlakeRef(_installables.front(), absPath("."));
}
InstallableCommand::InstallableCommand()
{
expectArgs({