Change babel plugin to use import map as source of truth (#189)

* change babel plugin to use import map as source of truth

* trying to get this test to run on windows

.gitignore

@@ -3,4 +3,4 @@ www/index.md
 www/dist
 /node_modules
 /web_modules
-__tests__/**/*/web_modules
+__tests__/integration/*/web_modules

__tests__/babel-plugin/cwd/web_modules/import-map.json

@@ -0,0 +1,5 @@
+{
+  "imports": {
+    "example-dep": "./example-dep.js"
+  }
+}

__tests__/babel-plugin/cwd/web_modules/import-map.test.json

@@ -0,0 +1,5 @@
+{
+  "imports": {
+    "example-dep": "./example-dep.js?from=import-map.test.json"
+  }
+}

__tests__/babel-plugin/cwd/web_modules_custom_dir/import-map.json

@@ -0,0 +1,5 @@
+{
+  "imports": {
+    "example-dep": "./test_val/example-dep.js"
+  }
+}

__tests__/babel-plugin/fixtures/dir/options.json

@@ -0,0 +1,3 @@
+{
+    "dir": "web_modules_custom_dir"
+}

__tests__/babel-plugin/fixtures/dir/output.js

@@ -0,0 +1 @@
+import module from '/web_modules_custom_dir/test_val/example-dep.js';

__tests__/babel-plugin/fixtures/importMap/options.json

@@ -0,0 +1,3 @@
+{
+    "importMap": "import-map.test.json"
+}

__tests__/babel-plugin/fixtures/importMap/output.js

@@ -0,0 +1 @@
+import module from '/web_modules/example-dep.js?from=import-map.test.json';

__tests__/babel-plugin/fixtures/optionalExtensions/code.js

@@ -0,0 +1 @@
+import module from './any/local/file';

__tests__/babel-plugin/fixtures/optionalExtensions/output.js

@@ -0,0 +1 @@
+import module from './any/local/file.js';

__tests__/babel-plugin/runner.js

@@ -2,10 +2,10 @@ const path = require('path');
 const pluginTester = require('babel-plugin-tester').default;
 const babelPlugin = require('../../assets/babel-plugin.js');
 
-process.chdir(__dirname);
+process.chdir(path.join(__dirname, 'cwd'));
 
 pluginTester({
   plugin: babelPlugin,
   pluginName: 'snowpack/assets/babel-plugin.js',
-  fixtures: path.join(__dirname, '__fixtures__'),
+  fixtures: path.join(__dirname, 'fixtures'),
 });

__tests__/integration/dep-list-complex/expected-install/import-map.json

@@ -1,5 +1,5 @@
 {
   "imports": {
-    "dat.gui": "./dat.gui.js"
+    "dat.gui": "./dat.gui.js?rev=XXXXXXXXXX"
   }
 }