Based on the script that @Gandhi pointed to in his answer, I updated the script to make it work for me with the current cordova@8: I use it as "after_prepare" hook, not "before_build", as in the later case the changed file got overwritten again when cordova copied the stuff to the platform directory soon after the hook has been executed ...
The script uses xml2js, so be sure to exec npm i xml2js --save-dev to make xml2js available.
#!/usr/bin/env node
// taken from https://www.bram.us/2015/01/04/cordova-build-hook-script-for-displaying-build-version-in-your-app/
// see https://stackoverflow.com/a/42650842
// This plugin replaces text in a file with the app version from config.xml.
// be sure to exec `npm i xml2js --save-dev` to make xml2js available
var wwwFileToReplace = "js/config.js";
var fs = require('fs');
var path = require('path');
var xml2js = require('xml2js');
function loadConfigXMLDoc(filePath) {
var json = "";
try {
var fileData = fs.readFileSync(filePath, 'ascii');
var parser = new xml2js.Parser();
parser.parseString(fileData.substring(0, fileData.length), function (err, result) {
//console.log("config.xml as JSON", JSON.stringify(result, null, 2));
json = result;
});
console.log("File '" + filePath + "' was successfully read.");
return json;
} catch (ex) {
console.log(ex)
}
}
function replace_string_in_file(filename, to_replace, replace_with) {
var data = fs.readFileSync(filename, 'utf8');
var result = data.replace(new RegExp(to_replace, "g"), replace_with);
fs.writeFileSync(filename, result, 'utf8');
//console.log("replaced in ", filename, "(", to_replace, " -> ", replace_with);
var data2 = fs.readFileSync(filename, 'utf8');
console.log(data2);
}
module.exports = function(context) {
// var rootdir = process.argv[2]; // old cordova version
var rootdir = context.opts.projectRoot;
console.log("projectRoot=", rootdir);
var configXMLPath = "config.xml";
var rawJSON = loadConfigXMLDoc(configXMLPath);
var version = rawJSON.widget.$.version;
console.log("Version:", version);
// var currentBuildPlatforms = process.env.CORDOVA_PLATFORMS.split(","); // old cordova version
var currentBuildPlatforms = context.opts.cordova.platforms;
//console.log(JSON.stringify(context));
console.log("Current build platforms: ", currentBuildPlatforms);
if (rootdir) {
currentBuildPlatforms.forEach(function(val, index, array) {
var wwwPath = "";
switch(val) {
case "ios":
wwwPath = "platforms/ios/www/";
break;
case "android":
wwwPath = "platforms/android/assets/www/";
break;
default:
console.log("Unknown build platform: " + val);
}
var fullfilename = path.join(rootdir, wwwPath + wwwFileToReplace);
if (fs.existsSync(fullfilename)) {
replace_string_in_file(fullfilename, "%%VERSION%%", version);
console.log("Replaced version in file: " + fullfilename);
}
});
}
}
Include this hook in your config.xml:
<hook src="scripts/after_prepare_read_app_version.js" type="after_prepare" />
