no-extraneous-dependencies: Handle scoped packages. Fixes #316 (#324)

CHANGELOG.md

@@ -8,7 +8,8 @@ This change log adheres to standards from [Keep a CHANGELOG](http://keepachangel
 - [`prefer-default-export`], new rule. ([#308], thanks [@gavriguy])
 
 ### Fixed
-- ignore namespace / ES7 re-exports in [`no-mutable-exports`]. ([#317], fixed by [#322]. thanks [@borisyankov] + [@jfmengels])
+- Ignore namespace / ES7 re-exports in [`no-mutable-exports`]. ([#317], fixed by [#322]. thanks [@borisyankov] + [@jfmengels])
+- Make [`no-extraneous-dependencies`] handle scoped packages ([#316], thanks [@jfmengels])
 
 ## [1.7.0] - 2016-05-06
 ### Added
@@ -18,7 +19,7 @@ This change log adheres to standards from [Keep a CHANGELOG](http://keepachangel
 - add [`no-mutable-exports`] rule ([#290], thanks [@josh])
 - [`import/extensions` setting]: a whitelist of file extensions to parse as modules
   and search for `export`s. If unspecified, all extensions are considered valid (for now).
-  In v2, this will likely default to `['.js', MODULE_EXT]`,. ([#297], to fix [#267])
+  In v2, this will likely default to `['.js', MODULE_EXT]`. ([#297], to fix [#267])
 
 ### Fixed
 - [`extensions`]: fallback to source path for extension enforcement if imported
@@ -210,6 +211,7 @@ for info on changes for earlier releases.
 [`prefer-default-export`]: ./docs/rules/prefer-default-export.md
 
 [#322]: https://github.com/benmosher/eslint-plugin-import/pull/322
+[#316]: https://github.com/benmosher/eslint-plugin-import/pull/316
 [#308]: https://github.com/benmosher/eslint-plugin-import/pull/308
 [#298]: https://github.com/benmosher/eslint-plugin-import/pull/298
 [#297]: https://github.com/benmosher/eslint-plugin-import/pull/297

src/rules/no-extraneous-dependencies.js

@@ -39,7 +39,10 @@ function reportIfMissing(context, deps, allowDevDeps, allowOptDeps, node, name)
   if (importType(name, context) !== 'external') {
     return
   }
-  const packageName = name.split('/')[0]
+  const splitName = name.split('/')
+  const packageName = splitName[0][0] === '@'
+    ? splitName.slice(0, 2).join('/')
+    : splitName[0]
 
   const isInDeps = deps.dependencies[packageName] !== undefined
   const isInDevDeps = deps.devDependencies[packageName] !== undefined

tests/files/package.json

@@ -7,6 +7,7 @@
     "eslint": "2.x"
   },
   "dependencies": {
+    "@scope/core": "^1.0.0",
     "lodash.cond": "^4.3.0",
     "pkg-up": "^1.0.0"
   },

tests/src/rules/no-extraneous-dependencies.js

@@ -21,11 +21,12 @@ ruleTester.run('no-extraneous-dependencies', rule, {
     test({ code: 'import "fs"'}),
     test({ code: 'import "./foo"'}),
     test({ code: 'import "lodash.isarray"'}),
+    test({ code: 'import "@scope/core"'}),
 
     // 'project' type
     test({
       code: 'import "importType"',
-      settings: { "import/resolver": { node: { paths: [ path.join(__dirname, '../../files') ] } } },
+      settings: { 'import/resolver': { node: { paths: [ path.join(__dirname, '../../files') ] } } },
     }),
   ],
   invalid: [
@@ -36,6 +37,20 @@ ruleTester.run('no-extraneous-dependencies', rule, {
         message: '\'not-a-dependency\' should be listed in the project\'s dependencies. Run \'npm i -S not-a-dependency\' to add it',
       }],
     }),
+    test({
+      code: 'var donthaveit = require("@scope/donthaveit")',
+      errors: [{
+        ruleId: 'no-extraneous-dependencies',
+        message: '\'@scope/donthaveit\' should be listed in the project\'s dependencies. Run \'npm i -S @scope/donthaveit\' to add it',
+      }],
+    }),
+    test({
+      code: 'var donthaveit = require("@scope/donthaveit/lib/foo")',
+      errors: [{
+        ruleId: 'no-extraneous-dependencies',
+        message: '\'@scope/donthaveit\' should be listed in the project\'s dependencies. Run \'npm i -S @scope/donthaveit\' to add it',
+      }],
+    }),
     test({
       code: 'import "eslint"',
       options: [{devDependencies: false}],