When file has a shebang, it should be kept intact (just like the BOM prefix)

[GerHobbelt]

Example:

#!/usr/bin/env node
require('../');

should become

#!/usr/bin/env node
//
// As per https://medium.com/netscape/a-guide-to-create-a-nodejs-command-line-package-c2166ad0452e
//
require('../');

when appending the text

//
// As per https://medium.com/netscape/a-guide-to-create-a-nodejs-command-line-package-c2166ad0452e
//

Notes

• I had a look how this can be fixed. That's a spot of bother as there's two ways:
  • either ditch the prepend-file module and redo+augment that functionality
  • or inject this functionality (shebang detection & handling) in the prepend-file module, which feels kinda wrong.
• PR is forthcoming: I'm taking the second route and forking prepend-file + PR that one.

[GerHobbelt]

BTW: took the second route instead of the first as I consider code duplication far worse than a fork + augment edit.

The fix in the prepend-to-je-file has been tested there:

• GerHobbelt/node-prepend-to-js-file@f6669e8
• Keep the shebang intact hemanth/node-prepend-file#16