Add --include-dotfiles option to babel-cli (#6232)

packages/babel-cli/src/babel/dir.js

@@ -71,10 +71,13 @@ export default function(commander, filenames, opts) {
       if (commander.deleteDirOnStart) {
         util.deleteDir(commander.outDir);
       }
-      util.readdir(dirname).forEach(function(filename) {
-        const src = path.join(dirname, filename);
-        handleFile(src, filename, dirname);
-      });
+
+      util
+        .readdir(dirname, commander.includeDotfiles)
+        .forEach(function(filename) {
+          const src = path.join(dirname, filename);
+          handleFile(src, filename, dirname);
+        });
     } else {
       write(filename, path.basename(filename), path.dirname(filename));
     }

packages/babel-cli/src/babel/file.js

@@ -130,9 +130,11 @@ export default function(commander, filenames, opts) {
       if (stat.isDirectory()) {
         const dirname = filename;
 
-        util.readdirFilter(filename).forEach(function(filename) {
-          _filenames.push(path.join(dirname, filename));
-        });
+        util
+          .readdirForCompilable(filename, commander.includeDotfiles)
+          .forEach(function(filename) {
+            _filenames.push(path.join(dirname, filename));
+          });
       } else {
         _filenames.push(filename);
       }

packages/babel-cli/src/babel/index.js

@@ -154,10 +154,14 @@ commander.option(
   "-D, --copy-files",
   "When compiling a directory copy over non-compilable files",
 );
+commander.option(
+  "--include-dotfiles",
+  "Include dotfiles when compiling and copying non-compilable files",
+);
 commander.option("-q, --quiet", "Don't log anything");
 commander.option(
   "--delete-dir-on-start",
-  "Delete's the out directory before compilation",
+  "Delete the out directory before compilation",
 );
 /* eslint-enable max-len */
 
@@ -233,6 +237,7 @@ delete opts.skipInitialBuild;
 delete opts.outFile;
 delete opts.outDir;
 delete opts.copyFiles;
+delete opts.includeDotfiles;
 delete opts.quiet;
 delete opts.configFile;
 delete opts.deleteDirOnStart;

packages/babel-cli/src/babel/util.js

@@ -1,5 +1,5 @@
 import commander from "commander";
-import readdir from "fs-readdir-recursive";
+import readdirRecursive from "fs-readdir-recursive";
 import * as babel from "babel-core";
 import includes from "lodash/includes";
 import path from "path";
@@ -9,13 +9,26 @@ export function chmod(src, dest) {
   fs.chmodSync(dest, fs.statSync(src).mode);
 }
 
-export function readdirFilter(filename) {
-  return readdir(filename).filter(function(filename) {
-    return isCompilableExtension(filename);
-  });
+type ReaddirFilter = (filename: string) => boolean;
+
+export function readdir(
+  dirname: string,
+  includeDotfiles: boolean,
+  filter: ReaddirFilter,
+) {
+  return readdirRecursive(
+    dirname,
+    filename =>
+      (includeDotfiles || filename[0] !== ".") && (!filter || filter(filename)),
+  );
 }
 
-export { readdir };
+export function readdirForCompilable(
+  dirname: string,
+  includeDotfiles: boolean,
+) {
+  return readdir(dirname, includeDotfiles, isCompilableExtension);
+}
 
 /**
  * Test if a filename ends with a compilable extension.