Initial import with skill sheet working

node_modules/vinyl-fs/lib/dest/write-contents/index.js

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+'use strict';
+
+var Transform = require('streamx').Transform;
+
+var writeDir = require('./write-dir');
+var writeStream = require('./write-stream');
+var writeBuffer = require('./write-buffer');
+var writeSymbolicLink = require('./write-symbolic-link');
+
+var fo = require('../../file-operations');
+
+function writeContents(optResolver) {
+  function writeFile(file, callback) {
+    // Write it as a symlink
+    if (file.isSymbolic()) {
+      return writeSymbolicLink(file, optResolver, onWritten);
+    }
+
+    // If directory then mkdirp it
+    if (file.isDirectory()) {
+      return writeDir(file, optResolver, onWritten);
+    }
+
+    // Stream it to disk yo
+    if (file.isStream()) {
+      return writeStream(file, optResolver, onWritten);
+    }
+
+    // Write it like normal
+    if (file.isBuffer()) {
+      return writeBuffer(file, optResolver, onWritten);
+    }
+
+    // If no contents then do nothing
+    if (file.isNull()) {
+      return onWritten();
+    }
+
+    // This is invoked by the various writeXxx modules when they've finished
+    // writing the contents.
+    function onWritten(writeErr) {
+      var flags = fo.getFlags({
+        overwrite: optResolver.resolve('overwrite', file),
+        append: optResolver.resolve('append', file),
+      });
+      if (fo.isFatalOverwriteError(writeErr, flags)) {
+        return callback(writeErr);
+      }
+
+      callback(null, file);
+    }
+  }
+
+  return new Transform({
+    transform: writeFile,
+  });
+}
+
+module.exports = writeContents;