create version.js to easily get version number without circularity

Author: antoinerg

src/assets/geo_assets.js

@@ -11,7 +11,6 @@
 var saneTopojson = require('sane-topojson');
 
 
-// package version injected by `npm run preprocess`
-exports.version = '1.52.2';
+exports.version = require('../version').version;
 
 exports.topojson = saneTopojson;

src/core.js

@@ -8,8 +8,7 @@
 
 'use strict';
 
-// package version injected by `npm run preprocess`
-exports.version = '1.52.2';
+exports.version = require('./version').version;
 
 // inject promise polyfill
 require('es6-promise').polyfill();

src/plot_api/to_image.js

@@ -17,7 +17,7 @@ var Lib = require('../lib');
 var helpers = require('../snapshot/helpers');
 var toSVG = require('../snapshot/tosvg');
 var svgToImg = require('../snapshot/svgtoimg');
-var version = require('../core').version;
+var version = require('../version').version;
 
 var attrs = {
     format: {

src/version.js

@@ -0,0 +1,12 @@
+/**
+* Copyright 2012-2020, Plotly, Inc.
+* All rights reserved.
+*
+* This source code is licensed under the MIT license found in the
+* LICENSE file in the root directory of this source tree.
+*/
+
+'use strict';
+
+// package version injected by `npm run preprocess`
+exports.version = '1.52.2';

tasks/preprocess.js

@@ -9,8 +9,7 @@ var updateVersion = require('./util/update_version');
 // main
 makeBuildCSS();
 copyTopojsonFiles();
-updateVersion(constants.pathToPlotlyCore);
-updateVersion(constants.pathToPlotlyGeoAssetsSrc);
+updateVersion(constants.pathToPlotlyVersion);
 
 // convert scss to css to js
 function makeBuildCSS() {

tasks/util/constants.js

@@ -47,6 +47,7 @@ module.exports = {
 
     pathToPlotlyIndex: path.join(pathToLib, 'index.js'),
     pathToPlotlyCore: path.join(pathToSrc, 'core.js'),
+    pathToPlotlyVersion: path.join(pathToSrc, 'version.js'),
     pathToPlotlyBuild: path.join(pathToBuild, 'plotly.js'),
     pathToPlotlyDist: path.join(pathToDist, 'plotly.js'),
     pathToPlotlyDistMin: path.join(pathToDist, 'plotly.min.js'),