summaryrefslogtreecommitdiffstats
path: root/src/test.cc
blob: 53bd7988935bf53f8837cc0a6f3dab7940d01f47 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
// Copyright 2011 Google Inc. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

#include "test.h"

#include <algorithm>

#include <errno.h>

#include "parsers.h"
#include "util.h"

#ifdef _WIN32
#include <windows.h>
#endif

namespace {

#ifdef _WIN32
#ifndef _mktemp_s
/// mingw has no mktemp.  Implement one with the same type as the one
/// found in the Windows API.
int _mktemp_s(char* templ) {
  char* ofs = strchr(templ, 'X');
  sprintf(ofs, "%d", rand() % 1000000);
  return 0;
}
#endif

/// Windows has no mkdtemp.  Implement it in terms of _mktemp_s.
char* mkdtemp(char* name_template) {
  int err = _mktemp_s(name_template);
  if (err < 0) {
    perror("_mktemp_s");
    return NULL;
  }

  err = _mkdir(name_template);
  if (err < 0) {
    perror("mkdir");
    return NULL;
  }

  return name_template;
}
#endif  // _WIN32

string GetSystemTempDir() {
#ifdef _WIN32
  char buf[1024];
  if (!GetTempPath(sizeof(buf), buf))
    return "";
  return buf;
#else
  const char* tempdir = getenv("TMPDIR");
  if (tempdir)
    return tempdir;
  return "/tmp";
#endif
}

}  // anonymous namespace

StateTestWithBuiltinRules::StateTestWithBuiltinRules() {
  AssertParse(&state_,
"rule cat\n"
"  command = cat $in > $out\n");
}

Node* StateTestWithBuiltinRules::GetNode(const string& path) {
  return state_.GetNode(path);
}

void AssertParse(State* state, const char* input) {
  ManifestParser parser(state, NULL);
  string err;
  ASSERT_TRUE(parser.ParseTest(input, &err)) << err;
  ASSERT_EQ("", err);
}

void VirtualFileSystem::Create(const string& path, int time,
                               const string& contents) {
  files_[path].mtime = time;
  files_[path].contents = contents;
}

TimeStamp VirtualFileSystem::Stat(const string& path) {
  FileMap::iterator i = files_.find(path);
  if (i != files_.end())
    return i->second.mtime;
  return 0;
}

bool VirtualFileSystem::MakeDir(const string& path) {
  directories_made_.push_back(path);
  return true;  // success
}

string VirtualFileSystem::ReadFile(const string& path, string* err) {
  files_read_.push_back(path);
  FileMap::iterator i = files_.find(path);
  if (i != files_.end())
    return i->second.contents;
  return "";
}

int VirtualFileSystem::RemoveFile(const string& path) {
  if (find(directories_made_.begin(), directories_made_.end(), path)
      != directories_made_.end())
    return -1;
  FileMap::iterator i = files_.find(path);
  if (i != files_.end()) {
    files_.erase(i);
    files_removed_.insert(path);
    return 0;
  } else {
    return 1;
  }
}

void ScopedTempDir::CreateAndEnter(const string& name) {
  // First change into the system temp dir and save it for cleanup.
  start_dir_ = GetSystemTempDir();
  if (start_dir_.empty())
    Fatal("couldn't get system temp dir");
  if (chdir(start_dir_.c_str()) < 0)
    Fatal("chdir: %s", strerror(errno));

  // Create a temporary subdirectory of that.
  char name_template[1024];
  strcpy(name_template, name.c_str());
  strcat(name_template, "-XXXXXX");
  char* tempname = mkdtemp(name_template);
  if (!tempname)
    Fatal("mkdtemp: %s", strerror(errno));
  temp_dir_name_ = tempname;

  // chdir into the new temporary directory.
  if (chdir(temp_dir_name_.c_str()) < 0)
    Fatal("chdir: %s", strerror(errno));
}

void ScopedTempDir::Cleanup() {
  if (temp_dir_name_.empty())
    return;  // Something went wrong earlier.

  // Move out of the directory we're about to clobber.
  if (chdir(start_dir_.c_str()) < 0)
    Fatal("chdir: %s", strerror(errno));

#ifdef _WIN32
  string command = "rmdir /s /q " + temp_dir_name_;
#else
  string command = "rm -rf " + temp_dir_name_;
#endif
  if (system(command.c_str()) < 0)
    Fatal("system: %s", strerror(errno));

  temp_dir_name_.clear();
}