From d127f9bd0e7b9b2e0df2de8a2227f77c0907468d Mon Sep 17 00:00:00 2001 From: Vincent Ambo Date: Wed, 18 May 2022 17:39:39 +0200 Subject: chore(3p/nix): unvendor tvix 0.1 Nothing is using this now, and we'll likely never pick this up again, but we learned a lot in the process. Every now and then this breaks in some bizarre way on channel bumps and it's just a waste of time to maintain that. Change-Id: Idcf2f5acd4ca7070ce18d7149cbfc0d967dc0a44 Reviewed-on: https://cl.tvl.fyi/c/depot/+/5632 Tested-by: BuildkiteCI Reviewed-by: sterni Reviewed-by: lukegb Autosubmit: tazjin --- third_party/nix/src/libutil/args.cc | 219 ------------------------------------ 1 file changed, 219 deletions(-) delete mode 100644 third_party/nix/src/libutil/args.cc (limited to 'third_party/nix/src/libutil/args.cc') diff --git a/third_party/nix/src/libutil/args.cc b/third_party/nix/src/libutil/args.cc deleted file mode 100644 index 2be8a1b0ce2a..000000000000 --- a/third_party/nix/src/libutil/args.cc +++ /dev/null @@ -1,219 +0,0 @@ -#include "libutil/args.hh" - -#include "libutil/hash.hh" - -namespace nix { - -Args::FlagMaker Args::mkFlag() { return FlagMaker(*this); } - -Args::FlagMaker::~FlagMaker() { - assert(!flag->longName.empty()); - args.longFlags[flag->longName] = flag; - if (flag->shortName != 0) { - args.shortFlags[flag->shortName] = flag; - } -} - -void Args::parseCmdline(const Strings& _cmdline) { - Strings pendingArgs; - bool dashDash = false; - - Strings cmdline(_cmdline); - - for (auto pos = cmdline.begin(); pos != cmdline.end();) { - auto arg = *pos; - - /* Expand compound dash options (i.e., `-qlf' -> `-q -l -f', - `-j3` -> `-j 3`). */ - if (!dashDash && arg.length() > 2 && arg[0] == '-' && arg[1] != '-' && - (isalpha(arg[1]) != 0)) { - *pos = std::string("-") + arg[1]; - auto next = pos; - ++next; - for (unsigned int j = 2; j < arg.length(); j++) { - if (isalpha(arg[j]) != 0) { - cmdline.insert(next, std::string("-") + arg[j]); - } else { - cmdline.insert(next, std::string(arg, j)); - break; - } - } - arg = *pos; - } - - if (!dashDash && arg == "--") { - dashDash = true; - ++pos; - } else if (!dashDash && std::string(arg, 0, 1) == "-") { - if (!processFlag(pos, cmdline.end())) { - throw UsageError(format("unrecognised flag '%1%'") % arg); - } - } else { - pendingArgs.push_back(*pos++); - if (processArgs(pendingArgs, false)) { - pendingArgs.clear(); - } - } - } - - processArgs(pendingArgs, true); -} - -void Args::printHelp(const std::string& programName, std::ostream& out) { - std::cout << "Usage: " << programName << " ..."; - for (auto& exp : expectedArgs) { - std::cout << renderLabels({exp.label}); - // FIXME: handle arity > 1 - if (exp.arity == 0) { - std::cout << "..."; - } - if (exp.optional) { - std::cout << "?"; - } - } - std::cout << "\n"; - - auto s = description(); - if (!s.empty()) { - std::cout << "\nSummary: " << s << ".\n"; - } - - if (!longFlags.empty() != 0u) { - std::cout << "\n"; - std::cout << "Flags:\n"; - printFlags(out); - } -} - -void Args::printFlags(std::ostream& out) { - Table2 table; - for (auto& flag : longFlags) { - if (hiddenCategories.count(flag.second->category) != 0u) { - continue; - } - table.push_back(std::make_pair( - (flag.second->shortName != 0 - ? std::string("-") + flag.second->shortName + ", " - : " ") + - "--" + flag.first + renderLabels(flag.second->labels), - flag.second->description)); - } - printTable(out, table); -} - -bool Args::processFlag(Strings::iterator& pos, Strings::iterator end) { - assert(pos != end); - - auto process = [&](const std::string& name, const Flag& flag) -> bool { - ++pos; - std::vector args; - for (size_t n = 0; n < flag.arity; ++n) { - if (pos == end) { - if (flag.arity == ArityAny) { - break; - } - throw UsageError(format("flag '%1%' requires %2% argument(s)") % name % - flag.arity); - } - args.push_back(*pos++); - } - flag.handler(std::move(args)); - return true; - }; - - if (std::string(*pos, 0, 2) == "--") { - auto i = longFlags.find(std::string(*pos, 2)); - if (i == longFlags.end()) { - return false; - } - return process("--" + i->first, *i->second); - } - - if (std::string(*pos, 0, 1) == "-" && pos->size() == 2) { - auto c = (*pos)[1]; - auto i = shortFlags.find(c); - if (i == shortFlags.end()) { - return false; - } - return process(std::string("-") + c, *i->second); - } - - return false; -} - -bool Args::processArgs(const Strings& args, bool finish) { - if (expectedArgs.empty()) { - if (!args.empty()) { - throw UsageError(format("unexpected argument '%1%'") % args.front()); - } - return true; - } - - auto& exp = expectedArgs.front(); - - bool res = false; - - if ((exp.arity == 0 && finish) || - (exp.arity > 0 && args.size() == exp.arity)) { - std::vector ss; - for (auto& s : args) { - ss.push_back(s); - } - exp.handler(std::move(ss)); - expectedArgs.pop_front(); - res = true; - } - - if (finish && !expectedArgs.empty() && !expectedArgs.front().optional) { - throw UsageError("more arguments are required"); - } - - return res; -} - -Args::FlagMaker& Args::FlagMaker::mkHashTypeFlag(HashType* ht) { - arity(1); - label("type"); - description("hash algorithm ('md5', 'sha1', 'sha256', or 'sha512')"); - handler([ht](const std::string& s) { - *ht = parseHashType(s); - if (*ht == htUnknown) { - throw UsageError("unknown hash type '%1%'", s); - } - }); - return *this; -} - -Strings argvToStrings(int argc, char** argv) { - Strings args; - argc--; - argv++; - while ((argc--) != 0) { - args.push_back(*argv++); - } - return args; -} - -std::string renderLabels(const Strings& labels) { - std::string res; - for (auto label : labels) { - for (auto& c : label) { - c = std::toupper(c); - } - res += " <" + label + ">"; - } - return res; -} - -void printTable(std::ostream& out, const Table2& table) { - size_t max = 0; - for (auto& row : table) { - max = std::max(max, row.first.size()); - } - for (auto& row : table) { - out << " " << row.first << std::string(max - row.first.size() + 2, ' ') - << row.second << "\n"; - } -} - -} // namespace nix -- cgit 1.4.1