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, 103 deletions

diff --git a/third_party/nix/src/nix-collect-garbage/nix-collect-garbage.cc b/third_party/nix/src/nix-collect-garbage/nix-collect-garbage.cc
deleted file mode 100644
index ac8c7d9399fb..000000000000
--- a/third_party/nix/src/nix-collect-garbage/nix-collect-garbage.cc
+++ /dev/null
@@ -1,103 +0,0 @@
-#include <cerrno>
-#include <iostream>
-
-#include <glog/logging.h>
-
-#include "libmain/shared.hh"
-#include "libstore/globals.hh"
-#include "libstore/profiles.hh"
-#include "libstore/store-api.hh"
-#include "nix/legacy.hh"
-
-using namespace nix;
-
-std::string deleteOlderThan;
-bool dryRun = false;
-
-/* If `-d' was specified, remove all old generations of all profiles.
- * Of course, this makes rollbacks to before this point in time
- * impossible. */
-
-void removeOldGenerations(const std::string& dir) {
-  if (access(dir.c_str(), R_OK) != 0) {
-    return;
-  }
-
-  bool canWrite = access(dir.c_str(), W_OK) == 0;
-
-  for (auto& i : readDirectory(dir)) {
-    checkInterrupt();
-
-    auto path = dir + "/" + i.name;
-    auto type = i.type == DT_UNKNOWN ? getFileType(path) : i.type;
-
-    if (type == DT_LNK && canWrite) {
-      std::string link;
-      try {
-        link = readLink(path);
-      } catch (SysError& e) {
-        if (e.errNo == ENOENT) {
-          continue;
-        }
-      }
-      if (link.find("link") != std::string::npos) {
-        LOG(INFO) << "removing old generations of profile " << path;
-        if (!deleteOlderThan.empty()) {
-          deleteGenerationsOlderThan(path, deleteOlderThan, dryRun);
-        } else {
-          deleteOldGenerations(path, dryRun);
-        }
-      }
-    } else if (type == DT_DIR) {
-      removeOldGenerations(path);
-    }
-  }
-}
-
-static int _main(int argc, char** argv) {
-  {
-    bool removeOld = false;
-
-    GCOptions options;
-
-    parseCmdLine(argc, argv,
-                 [&](Strings::iterator& arg, const Strings::iterator& end) {
-                   if (*arg == "--help") {
-                     showManPage("nix-collect-garbage");
-                   } else if (*arg == "--version") {
-                     printVersion("nix-collect-garbage");
-                   } else if (*arg == "--delete-old" || *arg == "-d") {
-                     removeOld = true;
-                   } else if (*arg == "--delete-older-than") {
-                     removeOld = true;
-                     deleteOlderThan = getArg(*arg, arg, end);
-                   } else if (*arg == "--dry-run") {
-                     dryRun = true;
-                   } else if (*arg == "--max-freed") {
-                     auto maxFreed = getIntArg<long long>(*arg, arg, end, true);
-                     options.maxFreed = maxFreed >= 0 ? maxFreed : 0;
-                   } else {
-                     return false;
-                   }
-                   return true;
-                 });
-
-    auto profilesDir = settings.nixStateDir + "/profiles";
-    if (removeOld) {
-      removeOldGenerations(profilesDir);
-    }
-
-    // Run the actual garbage collector.
-    if (!dryRun) {
-      auto store = openStore();
-      options.action = GCOptions::gcDeleteDead;
-      GCResults results;
-      PrintFreed freed(true, results);
-      store->collectGarbage(options, results);
-    }
-
-    return 0;
-  }
-}
-
-static RegisterLegacyCommand s1("nix-collect-garbage", _main);