1 files changed, 0 insertions, 157 deletions
diff --git a/src/check_dir_mtime.cc b/src/check_dir_mtime.cc
deleted file mode 100644
index bb60ffe5..00000000
--- a/src/check_dir_mtime.cc
+++ /dev/null
@@ -1,157 +0,0 @@
-// Copyright 2019 Roman Perepelitsa.
-//
-// This file is part of GitStatus.
-//
-// GitStatus is free software: you can redistribute it and/or modify
-// it under the terms of the GNU General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-//
-// GitStatus is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-// GNU General Public License for more details.
-//
-// You should have received a copy of the GNU General Public License
-// along with GitStatus. If not, see <https://www.gnu.org/licenses/>.
-
-#include "check_dir_mtime.h"
-
-#include <fcntl.h>
-#include <stdlib.h>
-#include <sys/stat.h>
-#include <sys/types.h>
-#include <time.h>
-#include <unistd.h>
-
-#include <cerrno>
-#include <cstring>
-#include <ctime>
-#include <string>
-#include <vector>
-
-#include "check.h"
-#include "dir.h"
-#include "logging.h"
-#include "print.h"
-#include "scope_guard.h"
-#include "stat.h"
-
-namespace gitstatus {
-
-namespace {
-
-constexpr char kDirPrefix[] = ".gitstatus.";
-
-void Touch(const char* path) {
-  int fd = creat(path, 0444);
-  VERIFY(fd >= 0) << Errno();
-  CHECK(!close(fd)) << Errno();
-}
-
-bool StatChanged(const char* path, const struct stat& prev) {
-  struct stat cur;
-  VERIFY(!lstat(path, &cur)) << Errno();
-  return !StatEq(prev, cur);
-}
-
-void RemoveStaleDirs(const char* root_dir) {
-  int dir_fd = open(root_dir, O_DIRECTORY | O_CLOEXEC);
-  if (dir_fd < 0) return;
-  ON_SCOPE_EXIT(&) { CHECK(!close(dir_fd)) << Errno(); };
-
-  Arena arena;
-  std::vector<char*> entries;
-  const std::time_t now = std::time(nullptr);
-  if (!ListDir(dir_fd, arena, entries,
-               /* precompose_unicode = */ false,
-               /* case_sensitive = */ true)) {
-    return;
-  }
-
-  std::string path = root_dir;
-  const size_t root_dir_len = path.size();
-
-  for (const char* entry : entries) {
-    if (std::strlen(entry) < std::strlen(kDirPrefix)) continue;
-    if (std::memcmp(entry, kDirPrefix, std::strlen(kDirPrefix))) continue;
-
-    struct stat st;
-    if (fstatat(dir_fd, entry, &st, AT_SYMLINK_NOFOLLOW)) {
-      LOG(WARN) << "Cannot stat " << Print(entry) << " in " << Print(root_dir) << ": " << Errno();
-      continue;
-    }
-    if (MTim(st).tv_sec + 10 > now) continue;
-
-    path.resize(root_dir_len);
-    path += entry;
-    size_t dir_len = path.size();
-
-    path += "/b/1";
-    if (unlink(path.c_str()) && errno != ENOENT) {
-      LOG(WARN) << "Cannot unlink " << Print(path) << ": " << Errno();
-      continue;
-    }
-
-    for (const char* d : {"/a/1", "/a", "/b", ""}) {
-      path.resize(dir_len);
-      path += d;
-      if (rmdir(path.c_str()) && errno != ENOENT) {
-        LOG(WARN) << "Cannot remove " << Print(path) << ": " << Errno();
-        break;
-      }
-    }
-  }
-}
-
-}  // namespace
-
-bool CheckDirMtime(const char* root_dir) {
-  try {
-    RemoveStaleDirs(root_dir);
-
-    std::string tmp = std::string() + root_dir + kDirPrefix + "XXXXXX";
-    VERIFY(mkdtemp(&tmp[0])) << Errno();
-    ON_SCOPE_EXIT(&) { rmdir(tmp.c_str()); };
-
-    std::string a_dir = tmp + "/a";
-    VERIFY(!mkdir(a_dir.c_str(), 0755)) << Errno();
-    ON_SCOPE_EXIT(&) { rmdir(a_dir.c_str()); };
-    struct stat a_st;
-    VERIFY(!lstat(a_dir.c_str(), &a_st)) << Errno();
-
-    std::string b_dir = tmp + "/b";
-    VERIFY(!mkdir(b_dir.c_str(), 0755)) << Errno();
-    ON_SCOPE_EXIT(&) { rmdir(b_dir.c_str()); };
-    struct stat b_st;
-    VERIFY(!lstat(b_dir.c_str(), &b_st)) << Errno();
-
-    while (sleep(1)) {
-      // zzzz
-    }
-
-    std::string a1 = a_dir + "/1";
-    VERIFY(!mkdir(a1.c_str(), 0755)) << Errno();
-    ON_SCOPE_EXIT(&) { rmdir(a1.c_str()); };
-    if (!StatChanged(a_dir.c_str(), a_st)) {
-      LOG(WARN) << "Creating a directory doesn't change mtime of the parent: " << Print(root_dir);
-      return false;
-    }
-
-    std::string b1 = b_dir + "/1";
-    Touch(b1.c_str());
-    ON_SCOPE_EXIT(&) { unlink(b1.c_str()); };
-    if (!StatChanged(b_dir.c_str(), b_st)) {
-      LOG(WARN) << "Creating a file doesn't change mtime of the parent: " << Print(root_dir);
-      return false;
-    }
-
-    LOG(INFO) << "All mtime checks have passes. Enabling untracked cache: " << Print(root_dir);
-    return true;
-  } catch (const Exception&) {
-    LOG(WARN) << "Error while testing for mtime capability: " << Print(root_dir);
-    return false;
-  }
-}
-
-}  // namespace gitstatus