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Fix flake input completion for InstallablesCommands

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Defers completion of flake inputs until the whole command line is parsed
so that we know what flakes we need to complete the inputs of.

Previously, `nix build flake --update-input <Tab>` always behaved like
`nix build . --update-input <Tab>`.
This commit is contained in:
Naïm Favier 2022-06-20 04:15:38 +02:00
parent d6d0e781bb
commit 711b2e1f48
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GPG key ID: 95AFCE8211908325
5 changed files with 44 additions and 16 deletions
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10
src/libutil/args.cc
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@ -124,7 +124,7 @@ bool Args::processFlag(Strings::iterator & pos, Strings::iterator end)
bool anyCompleted = false;
for (size_t n = 0 ; n < flag.handler.arity; ++n) {
if (pos == end) {
if (flag.handler.arity == ArityAny) break;
if (flag.handler.arity == ArityAny || anyCompleted) break;
throw UsageError("flag '%s' requires %d argument(s)", name, flag.handler.arity);
}
if (auto prefix = needsCompletion(*pos)) {
@ -362,6 +362,14 @@ bool MultiCommand::processArgs(const Strings & args, bool finish)
return Args::processArgs(args, finish);
}
void MultiCommand::completionHook()
{
if (command)
return command->second->completionHook();
else
return Args::completionHook();
}
nlohmann::json MultiCommand::toJSON()
{
auto cmds = nlohmann::json::object();