Using Webpack's Coffee-Loader without explicitly stating ".coffee" file extension - build

Question

preface
I am currently switching our build process over from Browserify to Webpack. As the project uses a great deal of coffee-script, I have many import statements such as:
require('./coffee-file-without-extension') # note the lack of .coffee
require('./legacy-js-file-without-extension') # note the lack of .js
problem
Browserify handles the absence of the file extension just fine. Webpack seems to have issue per this error:
Module not found: Error: Can't resolve './wptest-req' in '/Users/jusopi/Dev/Workspaces/nx/nx-ui/src'
I setup a super simple test project for this where I have the following files:
wptest.coffee
require('./wptest-req')
wptest-req.coffee
module.exports = {}
webpack.config.js
const path = require('path');
const webpack = require('webpack')
module.exports = {
entry: {
main: './src/wptest.coffee'
},
output: {
filename: '[name].js',
path: path.resolve(__dirname, 'dist')
},
plugins: [
new webpack.optimize.CommonsChunkPlugin({
name: 'common' // Specify the common bundle's name.
})
],
module: {
rules: [
{
test: /\.coffee$/,
use: [
{
loader: 'coffee-loader',
options: { sourceMap: true }
}
]
}
]
}
};
end-goal
I am hoping I do not have to go over every file in our application and append .coffee to all require statements for coffee files if at all possible.

Answer 1

While this solution is not specific to coffee-loader, it did resolve my issue. I needed to add a resolve object to my configuration:
const path = require('path');
const webpack = require('webpack')
module.exports = {
entry: {
main: './src/main.coffee'
// other: './src/index2.js'
},
output: {
filename: '[name].js',
path: path.resolve(__dirname, 'dist')
},
plugins: [
new webpack.optimize.CommonsChunkPlugin({
name: 'common' // Specify the common bundle's name.
})
],
module: {
rules: [
{
test: /\.coffee$/,
use: [
{
loader: 'coffee-loader',
options: { sourceMap: true }
}
]
}
]
},
resolve: {
extensions: [ '.coffee', '.js' ]
}
};
src - https://github.com/webpack-contrib/coffee-loader/issues/36