From f70434b1fbbdb0e188718f0c55a8156a7aa08744 Mon Sep 17 00:00:00 2001
From: Eelco Dolstra <edolstra@gmail.com>
Date: Thu, 22 Nov 2018 16:03:31 +0100
Subject: Move Command and MultiCommand to libutil

---
 src/nix/command.cc | 74 ------------------------------------------------------
 1 file changed, 74 deletions(-)

(limited to 'src/nix/command.cc')

diff --git a/src/nix/command.cc b/src/nix/command.cc
index e760c17d5..5967ab36c 100644
--- a/src/nix/command.cc
+++ b/src/nix/command.cc
@@ -6,80 +6,6 @@ namespace nix {
 
 std::vector<ref<Command>> * RegisterCommand::commands = 0;
 
-void Command::printHelp(const string & programName, std::ostream & out)
-{
-    Args::printHelp(programName, out);
-
-    auto exs = examples();
-    if (!exs.empty()) {
-        out << "\n";
-        out << "Examples:\n";
-        for (auto & ex : exs)
-            out << "\n"
-                << "  " << ex.description << "\n" // FIXME: wrap
-                << "  $ " << ex.command << "\n";
-    }
-}
-
-MultiCommand::MultiCommand(const std::vector<ref<Command>> & _commands)
-{
-    for (auto & command : _commands)
-        commands.emplace(command->name(), command);
-
-    expectedArgs.push_back(ExpectedArg{"command", 1, true, [=](std::vector<std::string> ss) {
-        assert(!command);
-        auto i = commands.find(ss[0]);
-        if (i == commands.end())
-            throw UsageError("'%s' is not a recognised command", ss[0]);
-        command = i->second;
-    }});
-}
-
-void MultiCommand::printHelp(const string & programName, std::ostream & out)
-{
-    if (command) {
-        command->printHelp(programName + " " + command->name(), out);
-        return;
-    }
-
-    out << "Usage: " << programName << " <COMMAND> <FLAGS>... <ARGS>...\n";
-
-    out << "\n";
-    out << "Common flags:\n";
-    printFlags(out);
-
-    out << "\n";
-    out << "Available commands:\n";
-
-    Table2 table;
-    for (auto & command : commands) {
-        auto descr = command.second->description();
-        if (!descr.empty())
-            table.push_back(std::make_pair(command.second->name(), descr));
-    }
-    printTable(out, table);
-
-#if 0
-    out << "\n";
-    out << "For full documentation, run 'man " << programName << "' or 'man " << programName << "-<COMMAND>'.\n";
-#endif
-}
-
-bool MultiCommand::processFlag(Strings::iterator & pos, Strings::iterator end)
-{
-    if (Args::processFlag(pos, end)) return true;
-    if (command && command->processFlag(pos, end)) return true;
-    return false;
-}
-
-bool MultiCommand::processArgs(const Strings & args, bool finish)
-{
-    if (command)
-        return command->processArgs(args, finish);
-    else
-        return Args::processArgs(args, finish);
-}
-
 StoreCommand::StoreCommand()
 {
 }
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