feat: add entry.basePath helper function

README.md

@@ -51,3 +51,25 @@ module.exports = {
   entry: entry(filePath => path.basename(filePath), 'bar/*.js', 'baz/*.js')
 }
 ```
+
+you can also use `entry.basePath` function as first argument like this
+
+```javascript
+
+module.exports = {
+  entry: entry(entry.basePath(), 'bar/*.js', 'baz/*.js')
+}
+
+# or like this
+
+module.exports = {
+  entry: entry(entry.basePath('src'), 'src/bar/*.js', 'src/baz/*.js')
+}
+
+# or like this
+
+module.exports = {
+  entry: entry(entry.basePath('src', '.js'), 'src/bar/*.some.js', 'src/baz/*.js')
+}
+
+```

spec/index.spec.js

@@ -74,4 +74,77 @@ describe('entry', () => {
 
     expect(() => entry(1)).toThrow()
   })
+
+  it('must thorw if first argument is not string or function', () => {
+    mockFs({
+      'src/main.entry.js': '',
+      'src/vendor.entry.js': '',
+      'src/foo/bar.js': ''
+    })
+
+    expect(() => entry(1)).toThrow()
+  })
+})
+
+describe('entry.basePath', () => {
+  afterEach(() => {
+    mockFs.restore()
+  })
+
+  it('should modify entry name (case 1)', () => {
+    mockFs({
+      'src/main.entry.js': '',
+      'src/vendor.entry.js': '',
+      'src/admin/vendor.foo.entry.js': '',
+      'src/foo/bar.js': ''
+    })
+
+    var expectedResult = {
+      'main': 'src/main.entry.js',
+      'vendor': 'src/vendor.entry.js',
+      'admin/vendor': 'src/admin/vendor.foo.entry.js'
+    }
+
+    var result = entry(entry.basePath('src'), 'src/**/*.entry.js')
+
+    expect(result).toEqual(expectedResult)
+  })
+
+  it('should modify entry name (case 2)', () => {
+    mockFs({
+      'src/main.entry.js': '',
+      'src/vendor.entry.js': '',
+      'src/admin/vendor.entry.js': '',
+      'src/foo/bar.js': ''
+    })
+
+    var expectedResult = {
+      'main.entry': 'src/main.entry.js',
+      'vendor.entry': 'src/vendor.entry.js',
+      'admin/vendor.entry': 'src/admin/vendor.entry.js'
+    }
+
+    var result = entry(entry.basePath('src', '.js'), 'src/**/*.entry.js')
+
+    expect(result).toEqual(expectedResult)
+  })
+
+  it('should modify entry name (case 3)', () => {
+    mockFs({
+      'src/main.entry.js': '',
+      'src/vendor.entry.js': '',
+      'src/admin/vendor.entry.js': '',
+      'src/foo/bar.js': ''
+    })
+
+    var expectedResult = {
+      'src/main': 'src/main.entry.js',
+      'src/vendor': 'src/vendor.entry.js',
+      'src/admin/vendor': 'src/admin/vendor.entry.js'
+    }
+
+    var result = entry(entry.basePath(), 'src/**/*.entry.js')
+
+    expect(result).toEqual(expectedResult)
+  })
 })

src/index.js

@@ -1,4 +1,5 @@
 import glob from 'glob'
+import {basename, dirname, relative} from 'path'
 
 const assoc = (key, value, object) => do {
   object[key] = value
@@ -13,6 +14,29 @@ const entry = (...patterns) => patterns
   }))
   .reduce((a, b) => Object.assign(a, b), {})
 
+entry.basePath = (basePath = '.', ext = null) => fullPath => {
+  const directory = do {
+    const relativePath = relative(basePath, fullPath)
+    const relativeDirName = dirname(relativePath)
+
+    if (relativeDirName === '.') {
+      ''
+    } else {
+      `${relativeDirName}/`
+    }
+  }
+
+  const fileName = do {
+    if (ext) {
+      basename(fullPath, ext)
+    } else {
+      entryName(fullPath)
+    }
+  }
+
+  return directory + fileName
+}
+
 const entryName = path => path
   .split('/')
   .pop()