Support embroider (#383)

* Support embroider

* rm 3.4 3.8

* Rm travis and add embroider test to github action

Author: snewcomer

.github/workflows/ci.yml

@@ -21,7 +21,8 @@ jobs:
           ember-lts-3.20,
           ember-beta,
           ember-canary,
-          ember-default-with-jquery
+          ember-default-with-jquery,
+          embroider-tests
         ]
     steps:
     - uses: actions/checkout@v2

.travis.yml

@@ -68,7 +68,17 @@ module.exports = async function() {
             '@ember/jquery': '^0.5.1'
           }
         }
-      }
+      },
+      {
+        name: 'embroider-tests',
+        npm: {
+          devDependencies: {
+            '@embroider/core': '*',
+            '@embroider/webpack': '*',
+            '@embroider/compat': '*',
+          },
+        },
+      },
     ]
   };
 };

config/ember-try.js

@@ -12,7 +12,18 @@ module.exports = function(defaults) {
     addon, located in `/tests/dummy`
     This build file does *not* influence how the addon or the app using it
     behave. You most likely want to be modifying `./index.js` or app's build file
-  */
+    */
+
+  if ('@embroider/webpack' in app.dependencies()) {
+    const { Webpack } = require('@embroider/webpack'); // eslint-disable-line
+    return require('@embroider/compat') // eslint-disable-line
+      .compatBuild(app, Webpack, {
+        staticAddonTestSupportTrees: true,
+        staticAddonTrees: true,
+        staticHelpers: true,
+        staticComponents: true,
+      });
+  }
 
   return app.toTree();
 };

ember-cli-build.js

@@ -27,7 +27,7 @@
     "broccoli-asset-rev": "^3.0.0",
     "chai": "^3.5.0",
     "ember-auto-import": "^1.5.2",
-    "ember-cli": "~3.17.0",
+    "ember-cli": "~3.20.0",
     "ember-cli-dependency-checker": "^3.0.0",
     "ember-cli-eslint": "^5.0.0",
     "ember-cli-htmlbars": "^3.0.1",
@@ -48,7 +48,7 @@
     "ember-qunit": "^4.1.2",
     "ember-resolver": "^5.0.1",
     "ember-sinon": "^3.0.0",
-    "ember-source": "~3.17.0",
+    "ember-source": "~3.20.0",
     "ember-source-channel-url": "^2.0.1",
     "ember-try": "^1.2.1",
     "eslint-plugin-ember": "^7.1.0",