versioning.js

'use strict';

module.exports = exports;

const path = require('path');
const semver = require('semver');
const url = require('url');
const detect_libc = require('detect-libc');
const napi = require('./napi.js');

let abi_crosswalk;

// This is used for unit testing to provide a fake
// ABI crosswalk that emulates one that is not updated
// for the current version
if (process.env.NODE_PRE_GYP_ABI_CROSSWALK) {
  abi_crosswalk = require(process.env.NODE_PRE_GYP_ABI_CROSSWALK);
} else {
  abi_crosswalk = require('./abi_crosswalk.json');
}

const major_versions = {};
Object.keys(abi_crosswalk).forEach((v) => {
  const major = v.split('.')[0];
  if (!major_versions[major]) {
    major_versions[major] = v;
  }
});

function get_electron_abi(runtime, target_version) {
  if (!runtime) {
    throw new Error('get_electron_abi requires valid runtime arg');
  }
  if (typeof target_version === 'undefined') {
    // erroneous CLI call
    throw new Error('Empty target version is not supported if electron is the target.');
  }
  // Electron guarantees that patch version update won't break native modules.
  const sem_ver = semver.parse(target_version);
  return runtime + '-v' + sem_ver.major + '.' + sem_ver.minor;
}
module.exports.get_electron_abi = get_electron_abi;

function get_node_webkit_abi(runtime, target_version) {
  if (!runtime) {
    throw new Error('get_node_webkit_abi requires valid runtime arg');
  }
  if (typeof target_version === 'undefined') {
    // erroneous CLI call
    throw new Error('Empty target version is not supported if node-webkit is the target.');
  }
  return runtime + '-v' + target_version;
}
module.exports.get_node_webkit_abi = get_node_webkit_abi;

function get_node_abi(runtime, versions) {
  if (!runtime) {
    throw new Error('get_node_abi requires valid runtime arg');
  }
  if (!versions) {
    throw new Error('get_node_abi requires valid process.versions object');
  }
  const sem_ver = semver.parse(versions.node);
  if (sem_ver.major === 0 && sem_ver.minor % 2) { // odd series
    // https://github.com/mapbox/node-pre-gyp/issues/124
    return runtime + '-v' + versions.node;
  } else {
    // process.versions.modules added in >= v0.10.4 and v0.11.7
    // https://github.com/joyent/node/commit/ccabd4a6fa8a6eb79d29bc3bbe9fe2b6531c2d8e
    return versions.modules ? runtime + '-v' + (+versions.modules) :