diff options
Diffstat (limited to 'third_party/nix/src/nix/command.cc')
| -rw-r--r-- | third_party/nix/src/nix/command.cc | 196 |
1 files changed, 88 insertions, 108 deletions
diff --git a/third_party/nix/src/nix/command.cc b/third_party/nix/src/nix/command.cc index 3d7d582d6f..5565e49f56 100644 --- a/third_party/nix/src/nix/command.cc +++ b/third_party/nix/src/nix/command.cc @@ -1,61 +1,58 @@ #include "command.hh" -#include "store-api.hh" #include "derivations.hh" +#include "store-api.hh" namespace nix { -Commands * RegisterCommand::commands = 0; +Commands* RegisterCommand::commands = 0; -void Command::printHelp(const string & programName, std::ostream & out) -{ - Args::printHelp(programName, out); +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"; - } + 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 Commands & _commands) - : commands(_commands) -{ - expectedArgs.push_back(ExpectedArg{"command", 1, true, [=](std::vector<std::string> ss) { +MultiCommand::MultiCommand(const Commands& _commands) : commands(_commands) { + 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]); + 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; - } +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 << "Usage: " << programName << " <COMMAND> <FLAGS>... <ARGS>...\n"; - out << "\n"; - out << "Common flags:\n"; - printFlags(out); + out << "\n"; + out << "Common flags:\n"; + printFlags(out); - out << "\n"; - out << "Available commands:\n"; + 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); + 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"; @@ -63,94 +60,77 @@ void MultiCommand::printHelp(const string & programName, std::ostream & out) #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::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); +bool MultiCommand::processArgs(const Strings& args, bool finish) { + if (command) + return command->processArgs(args, finish); + else + return Args::processArgs(args, finish); } -StoreCommand::StoreCommand() -{ -} +StoreCommand::StoreCommand() {} -ref<Store> StoreCommand::getStore() -{ - if (!_store) - _store = createStore(); - return ref<Store>(_store); +ref<Store> StoreCommand::getStore() { + if (!_store) _store = createStore(); + return ref<Store>(_store); } -ref<Store> StoreCommand::createStore() -{ - return openStore(); -} +ref<Store> StoreCommand::createStore() { return openStore(); } -void StoreCommand::run() -{ - run(getStore()); -} +void StoreCommand::run() { run(getStore()); } -StorePathsCommand::StorePathsCommand(bool recursive) - : recursive(recursive) -{ - if (recursive) - mkFlag() - .longName("no-recursive") - .description("apply operation to specified paths only") - .set(&this->recursive, false); - else - mkFlag() - .longName("recursive") - .shortName('r') - .description("apply operation to closure of the specified paths") - .set(&this->recursive, true); - - mkFlag(0, "all", "apply operation to the entire store", &all); +StorePathsCommand::StorePathsCommand(bool recursive) : recursive(recursive) { + if (recursive) + mkFlag() + .longName("no-recursive") + .description("apply operation to specified paths only") + .set(&this->recursive, false); + else + mkFlag() + .longName("recursive") + .shortName('r') + .description("apply operation to closure of the specified paths") + .set(&this->recursive, true); + + mkFlag(0, "all", "apply operation to the entire store", &all); } -void StorePathsCommand::run(ref<Store> store) -{ - Paths storePaths; +void StorePathsCommand::run(ref<Store> store) { + Paths storePaths; - if (all) { - if (installables.size()) - throw UsageError("'--all' does not expect arguments"); - for (auto & p : store->queryAllValidPaths()) - storePaths.push_back(p); - } + if (all) { + if (installables.size()) + throw UsageError("'--all' does not expect arguments"); + for (auto& p : store->queryAllValidPaths()) storePaths.push_back(p); + } - else { - for (auto & p : toStorePaths(store, NoBuild, installables)) - storePaths.push_back(p); + else { + for (auto& p : toStorePaths(store, NoBuild, installables)) + storePaths.push_back(p); - if (recursive) { - PathSet closure; - store->computeFSClosure(PathSet(storePaths.begin(), storePaths.end()), - closure, false, false); - storePaths = Paths(closure.begin(), closure.end()); - } + if (recursive) { + PathSet closure; + store->computeFSClosure(PathSet(storePaths.begin(), storePaths.end()), + closure, false, false); + storePaths = Paths(closure.begin(), closure.end()); } + } - run(store, storePaths); + run(store, storePaths); } -void StorePathCommand::run(ref<Store> store) -{ - auto storePaths = toStorePaths(store, NoBuild, installables); +void StorePathCommand::run(ref<Store> store) { + auto storePaths = toStorePaths(store, NoBuild, installables); - if (storePaths.size() != 1) - throw UsageError("this command requires exactly one store path"); + if (storePaths.size() != 1) + throw UsageError("this command requires exactly one store path"); - run(store, *storePaths.begin()); + run(store, *storePaths.begin()); } -} +} // namespace nix |