chore(3p/nix): unvendor tvix 0.1 r/4098

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 <sternenseemann@systemli.org>
Reviewed-by: lukegb <lukegb@tvl.fyi>
Autosubmit: tazjin <tazjin@tvl.su>

1 files changed, 0 insertions, 221 deletions

diff --git a/third_party/nix/src/libutil/args.hh b/third_party/nix/src/libutil/args.hh
deleted file mode 100644
index bb1ef43912bb..000000000000
--- a/third_party/nix/src/libutil/args.hh
+++ /dev/null
@@ -1,221 +0,0 @@
-#pragma once
-
-#include <iostream>
-#include <map>
-#include <memory>
-
-#include <absl/strings/numbers.h>
-
-#include "libutil/util.hh"
-
-namespace nix {
-
-MakeError(UsageError, Error);
-
-enum HashType : char;
-
-class Args {
- public:
-  /* Parse the command line, throwing a UsageError if something goes
-     wrong. */
-  void parseCmdline(const Strings& cmdline);
-
-  virtual void printHelp(const std::string& programName, std::ostream& out);
-
-  virtual std::string description() { return ""; }
-
- protected:
-  static const size_t ArityAny = std::numeric_limits<size_t>::max();
-
-  /* Flags. */
-  struct Flag {
-    typedef std::shared_ptr<Flag> ptr;
-    std::string longName;
-    char shortName = 0;
-    std::string description;
-    Strings labels;
-    size_t arity = 0;
-    std::function<void(std::vector<std::string>)> handler;
-    std::string category;
-  };
-
-  std::map<std::string, Flag::ptr> longFlags;
-  std::map<char, Flag::ptr> shortFlags;
-
-  virtual bool processFlag(Strings::iterator& pos, Strings::iterator end);
-
-  virtual void printFlags(std::ostream& out);
-
-  /* Positional arguments. */
-  struct ExpectedArg {
-    std::string label;
-    size_t arity;  // 0 = any
-    bool optional;
-    std::function<void(std::vector<std::string>)> handler;
-  };
-
-  std::list<ExpectedArg> expectedArgs;
-
-  virtual bool processArgs(const Strings& args, bool finish);
-
-  std::set<std::string> hiddenCategories;
-
- public:
-  class FlagMaker {
-    Args& args;
-    Flag::ptr flag;
-    friend class Args;
-    explicit FlagMaker(Args& args)
-        : args(args), flag(std::make_shared<Flag>()){};
-
-   public:
-    ~FlagMaker();
-    FlagMaker& longName(const std::string& s) {
-      flag->longName = s;
-      return *this;
-    };
-    FlagMaker& shortName(char s) {
-      flag->shortName = s;
-      return *this;
-    };
-    FlagMaker& description(const std::string& s) {
-      flag->description = s;
-      return *this;
-    };
-    FlagMaker& label(const std::string& l) {
-      flag->arity = 1;
-      flag->labels = {l};
-      return *this;
-    };
-    FlagMaker& labels(const Strings& ls) {
-      flag->arity = ls.size();
-      flag->labels = ls;
-      return *this;
-    };
-    FlagMaker& arity(size_t arity) {
-      flag->arity = arity;
-      return *this;
-    };
-    FlagMaker& handler(std::function<void(std::vector<std::string>)> handler) {
-      flag->handler = handler;
-      return *this;
-    };
-    FlagMaker& handler(std::function<void()> handler) {
-      flag->handler = [handler](std::vector<std::string>) { handler(); };
-      return *this;
-    };
-    FlagMaker& handler(std::function<void(std::string)> handler) {
-      flag->arity = 1;
-      flag->handler = [handler](std::vector<std::string> ss) {
-        handler(std::move(ss[0]));
-      };
-      return *this;
-    };
-    FlagMaker& category(const std::string& s) {
-      flag->category = s;
-      return *this;
-    };
-
-    template <class T>
-    FlagMaker& dest(T* dest) {
-      flag->arity = 1;
-      flag->handler = [=](std::vector<std::string> ss) { *dest = ss[0]; };
-      return *this;
-    }
-
-    template <class T>
-    FlagMaker& set(T* dest, const T& val) {
-      flag->arity = 0;
-      flag->handler = [=](std::vector<std::string> ss) { *dest = val; };
-      return *this;
-    }
-
-    FlagMaker& mkHashTypeFlag(HashType* ht);
-  };
-
-  FlagMaker mkFlag();
-
-  /* Helper functions for constructing flags / positional
-     arguments. */
-
-  void mkFlag1(char shortName, const std::string& longName,
-               const std::string& label, const std::string& description,
-               std::function<void(std::string)> fun) {
-    mkFlag()
-        .shortName(shortName)
-        .longName(longName)
-        .labels({label})
-        .description(description)
-        .arity(1)
-        .handler([=](std::vector<std::string> ss) { fun(ss[0]); });
-  }
-
-  void mkFlag(char shortName, const std::string& name,
-              const std::string& description, bool* dest) {
-    mkFlag(shortName, name, description, dest, true);
-  }
-
-  template <class T>
-  void mkFlag(char shortName, const std::string& longName,
-              const std::string& description, T* dest, const T& value) {
-    mkFlag()
-        .shortName(shortName)
-        .longName(longName)
-        .description(description)
-        .handler([=](std::vector<std::string> ss) { *dest = value; });
-  }
-
-  template <class I>
-  void mkIntFlag(char shortName, const std::string& longName,
-                 const std::string& description, I* dest) {
-    mkFlag<I>(shortName, longName, description, [=](I n) { *dest = n; });
-  }
-
-  template <class I>
-  void mkFlag(char shortName, const std::string& longName,
-              const std::string& description, std::function<void(I)> fun) {
-    mkFlag()
-        .shortName(shortName)
-        .longName(longName)
-        .labels({"N"})
-        .description(description)
-        .arity(1)
-        .handler([=](std::vector<std::string> ss) {
-          I n;
-          if (!absl::SimpleAtoi(ss[0], &n)) {
-            throw UsageError("flag '--%s' requires a integer argument",
-                             longName);
-          }
-          fun(n);
-        });
-  }
-
-  /* Expect a string argument. */
-  void expectArg(const std::string& label, std::string* dest,
-                 bool optional = false) {
-    expectedArgs.push_back(
-        ExpectedArg{label, 1, optional,
-                    [=](std::vector<std::string> ss) { *dest = ss[0]; }});
-  }
-
-  /* Expect 0 or more arguments. */
-  void expectArgs(const std::string& label, std::vector<std::string>* dest) {
-    expectedArgs.push_back(ExpectedArg{
-        label, 0, false,
-        [=](std::vector<std::string> ss) { *dest = std::move(ss); }});
-  }
-
-  friend class MultiCommand;
-};
-
-Strings argvToStrings(int argc, char** argv);
-
-/* Helper function for rendering argument labels. */
-std::string renderLabels(const Strings& labels);
-
-/* Helper function for printing 2-column tables. */
-using Table2 = std::vector<std::pair<std::string, std::string> >;
-
-void printTable(std::ostream& out, const Table2& table);
-
-}  // namespace nix