github.com/maruel/nin@v0.0.0-20220112143044-f35891e3ce7e/src/version.cc (about)

     1  // Copyright 2013 Google Inc. All Rights Reserved.
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //     http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  #include "version.h"
    16  
    17  #include <stdlib.h>
    18  
    19  #include "util.h"
    20  
    21  using namespace std;
    22  
    23  const char* kNinjaVersion = "1.10.2.git";
    24  
    25  void ParseVersion(const string& version, int* major, int* minor) {
    26    size_t end = version.find('.');
    27    *major = atoi(version.substr(0, end).c_str());
    28    *minor = 0;
    29    if (end != string::npos) {
    30      size_t start = end + 1;
    31      end = version.find('.', start);
    32      *minor = atoi(version.substr(start, end).c_str());
    33    }
    34  }
    35  
    36  void CheckNinjaVersion(const string& version) {
    37    int bin_major, bin_minor;
    38    ParseVersion(kNinjaVersion, &bin_major, &bin_minor);
    39    int file_major, file_minor;
    40    ParseVersion(version, &file_major, &file_minor);
    41  
    42    if (bin_major > file_major) {
    43      Warning("ninja executable version (%s) greater than build file "
    44              "ninja_required_version (%s); versions may be incompatible.",
    45              kNinjaVersion, version.c_str());
    46      return;
    47    }
    48  
    49    if ((bin_major == file_major && bin_minor < file_minor) ||
    50        bin_major < file_major) {
    51      Fatal("ninja version (%s) incompatible with build file "
    52            "ninja_required_version version (%s).",
    53            kNinjaVersion, version.c_str());
    54    }
    55  }