Add a hook to change the app specific android classes

hooks/android/addResourcesClassImport.js

@@ -0,0 +1,163 @@
+#!/usr/bin/env node
+
+/*
+ * A hook to add resources class (R.java) import to Android classes which uses it.
+ */
+
+function getRegexGroupMatches(string, regex, index) {
+    index || (index = 1)
+
+    var matches = [];
+    var match;
+    if (regex.global) {
+        while (match = regex.exec(string)) {
+            matches.push(match[index]);
+            console.log('Match:', match);
+        }
+    }
+    else {
+        if (match = regex.exec(string)) {
+            matches.push(match[index]);
+        }
+    }
+
+    return matches;
+}
+
+// Adapted from 
+// https://stackoverflow.com/a/5827895
+// Using this and not one of the wrapper modules
+// e.g. `file` or `node-dir` because I don't see an obvious way to add
+// javascript modules using plugin.xml, and this uses only standard modules
+
+var walk = function(ctx, dir, done) {
+  var results = [];
+
+  var fs = ctx.requireCordovaModule('fs'),
+      path = ctx.requireCordovaModule('path');
+
+  fs.readdir(dir, function(err, list) {
+    if (err) return done(err);
+    var pending = list.length;
+    if (!pending) return done(null, results);
+    list.forEach(function(file) {
+      file = path.resolve(dir, file);
+      fs.stat(file, function(err, stat) {
+        if (stat && stat.isDirectory()) {
+          walk(ctx, file, function(err, res) {
+            results = results.concat(res);
+            if (!--pending) done(null, results);
+          });
+        } else {
+          results.push(file);
+          if (!--pending) done(null, results);
+        }
+      });
+    });
+  });
+};
+
+module.exports = function (ctx) {
+    // If Android platform is not installed, don't even execute
+    if (ctx.opts.cordova.platforms.indexOf('android') < 0)
+        return;
+
+    var fs = ctx.requireCordovaModule('fs'),
+        path = ctx.requireCordovaModule('path'),
+        Q = ctx.requireCordovaModule('q');
+
+    var deferral = Q.defer();
+
+    var platformSourcesRoot = path.join(ctx.opts.projectRoot, 'platforms/android/src');
+    var pluginSourcesRoot = path.join(ctx.opts.plugin.dir, 'src/android');
+
+    var androidPluginsData = JSON.parse(fs.readFileSync(path.join(ctx.opts.projectRoot, 'plugins', 'android.json'), 'utf8'));
+    var appPackage = androidPluginsData.installed_plugins[ctx.opts.plugin.id]['PACKAGE_NAME'];
+
+    walk(ctx, pluginSourcesRoot, function (err, files) {
+        console.log("walk callback with files = "+files);
+        if (err) {
+            console.error('Error when reading file:', err)
+            deferral.reject();
+            return
+        }
+
+        var deferrals = [];
+
+        files.filter(function (file) { return path.extname(file) === '.java'; })
+            .forEach(function (file) {
+                var deferral = Q.defer();
+
+                // console.log("Considering file "+file);
+                var filename = path.basename(file);
+                // console.log("basename "+filename);
+                // var file = path.join(pluginSourcesRoot, filename);
+                // console.log("newfile"+file);
+                fs.readFile(file, 'utf-8', function (err, contents) {
+                    if (err) {
+                        console.error('Error when reading file:', err)
+                        deferral.reject();
+                        return
+                    }
+
+                    if (contents.match(/[^\.\w]R\./) || contents.match(/[^\.\w]BuildConfig\./) || contents.match(/[^\.\w]MainActivity\./)) {
+                        console.log('Trying to get packages from file:', filename);
+                        var packages = getRegexGroupMatches(contents, /package ([^;]+);/);
+                        for (var p = 0; p < packages.length; p++) {
+                            try {
+                                var package = packages[p];
+                                console.log('Handling package:', package);
+
+                                var sourceFile = path.join(platformSourcesRoot, package.replace(/\./g, '/'), filename)
+                                console.log('sourceFile:', sourceFile);
+                                if (!fs.existsSync(sourceFile)) 
+                                    throw 'Can\'t find file in installed platform directory: "' + sourceFile + '".';
+
+                                var sourceFileContents = fs.readFileSync(sourceFile, 'utf8');
+                                if (!sourceFileContents) 
+                                    throw 'Can\'t read file contents.';
+
+                                var newContents = sourceFileContents;
+
+                                if (contents.match(/[^\.\w]R\./)) {
+                                    newContents = sourceFileContents
+                                        .replace(/(import ([^;]+).R;)/g, '')
+                                        .replace(/(package ([^;]+);)/g, '$1 \n// Auto fixed by post-plugin hook \nimport ' + appPackage + '.R;');
+                                }
+
+                                // replace BuildConfig as well
+                                if (contents.match(/[^\.\w]BuildConfig\./)) {
+                                    newContents = newContents
+                                        .replace(/(import ([^;]+).BuildConfig;)/g, '')
+                                        .replace(/(package ([^;]+);)/g, '$1 \n// Auto fixed by post-plugin hook \nimport ' + appPackage + '.BuildConfig;');
+                                }
+
+                                // replace MainActivity as well
+                                if (contents.match(/[^\.\w]MainActivity\./)) {
+                                    newContents = newContents
+                                        .replace(/(import ([^;]+).MainActivity;)/g, '')
+                                        .replace(/(package ([^;]+);)/g, '$1 \n// Auto fixed by post-plugin hook \nimport ' + appPackage + '.MainActivity;');
+                                }
+
+                                fs.writeFileSync(sourceFile, newContents, 'utf8');
+                                break;
+                            }
+                            catch (ex) {
+                                console.log('Could not add import to "' +  filename + '" using package "' + package + '". ' + ex);
+                            }
+                        }
+                    }
+                });
+
+                deferrals.push(deferral.promise);
+            });
+
+        Q.all(deferrals)
+            .then(function() {
+                console.log('Done with the hook!');
+                deferral.resolve();
+            })
+    });
+
+    return deferral.promise;
+}

plugin.xml

@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <plugin xmlns="http://www.phonegap.com/ns/plugins/1.0"
         id="edu.berkeley.eecs.emission.cordova.comm"
-        version="1.0.1">
+        version="1.2.0">
 
   <name>ServerComm</name>
   <description>Abstraction for communication settings, and for making both GET
@@ -26,6 +26,7 @@
                 url="https://github.com/e-mission/cordova-connection-settings.git"/>
   -->
   <framework src="src/android/httplib.gradle" custom="true" type="gradleReference" />
+  <hook type="after_plugin_install" src="hooks/android/addResourcesClassImport.js" />
   <platform name="android">
 
     <config-file target="res/xml/config.xml" parent="/*">