Add glob option to ignore hidden files (#1791)

* Add glob option to ignore hidden files

* Use the basename of the file/directory to check for `.`

* Ensure the `excludeHiddenFiles` is properly copied

* Allow the root directory to be matched

* Fix description of `excludeHiddenFiles`

* Document Windows hidden attribute limitation

* Bump version

* `lint`

* Document 0.5.0 release

* Lint again

packages/glob/src/internal-glob-options-helper.ts

@@ -9,7 +9,8 @@ export function getOptions(copy?: GlobOptions): GlobOptions {
     followSymbolicLinks: true,
     implicitDescendants: true,
     matchDirectories: true,
-    omitBrokenSymbolicLinks: true
+    omitBrokenSymbolicLinks: true,
+    excludeHiddenFiles: false
   }
 
   if (copy) {
@@ -32,6 +33,11 @@ export function getOptions(copy?: GlobOptions): GlobOptions {
       result.omitBrokenSymbolicLinks = copy.omitBrokenSymbolicLinks
       core.debug(`omitBrokenSymbolicLinks '${result.omitBrokenSymbolicLinks}'`)
     }
+
+    if (typeof copy.excludeHiddenFiles === 'boolean') {
+      result.excludeHiddenFiles = copy.excludeHiddenFiles
+      core.debug(`excludeHiddenFiles '${result.excludeHiddenFiles}'`)
+    }
   }
 
   return result

packages/glob/src/internal-glob-options.ts

@@ -36,4 +36,13 @@ export interface GlobOptions {
    * @default true
    */
   omitBrokenSymbolicLinks?: boolean
+
+  /**
+   * Indicates whether to exclude hidden files (files and directories starting with a `.`).
+   * This does not apply to Windows files and directories with the hidden attribute unless
+   * they are also prefixed with a `.`.
+   *
+   * @default false
+   */
+  excludeHiddenFiles?: boolean
 }

packages/glob/src/internal-globber.ts

@@ -128,6 +128,11 @@ export class DefaultGlobber implements Globber {
         continue
       }
 
+      // Hidden file or directory?
+      if (options.excludeHiddenFiles && path.basename(item.path).match(/^\./)) {
+        continue
+      }
+
       // Directory
       if (stats.isDirectory()) {
         // Matched