legacy-libs/node-pre-gyp/lib/pre-binding.js

   1 "use strict";
   2
   3 var versioning = require('../lib/util/versioning.js');
   4 var napi = require('../lib/util/napi.js');
   5 var existsSync = require('fs').existsSync || require('path').existsSync;
   6 var path = require('path');
   7
   8 module.exports = exports;
   9
  10 exports.usage = 'Finds the require path for the node-pre-gyp installed module';
  11
  12 exports.validate = function(package_json,opts) {
  13     versioning.validate_config(package_json,opts);
  14 };
  15
  16 exports.find = function(package_json_path,opts) {
  17    if (!existsSync(package_json_path)) {
  18         throw new Error("package.json does not exist at " + package_json_path);
  19    }
  20    var package_json = require(package_json_path);
  21    versioning.validate_config(package_json,opts);
  22    var napi_build_version;
  23    if (napi.get_napi_build_versions (package_json, opts)) {
  24        napi_build_version = napi.get_best_napi_build_version(package_json, opts);
  25    }
  26    opts = opts || {};
  27    if (!opts.module_root) opts.module_root = path.dirname(package_json_path);
  28    var meta = versioning.evaluate(package_json,opts,napi_build_version);
  29    return meta.module;
  30 };