Elm errors don’t show up on overlay anymore

[sephii]

Using elm-webpack-loader 8.0.0 and elm-hot-webpack-loader 1.1.8 with webpack 5.74.0, the overlay now only shows the following information when there’s an Elm error:

Compiled with problems:

ERROR in ./assets/elm/Shop/Main.elm

Module build failed (from ./node_modules/elm-webpack-loader/index.js):
Compiler process exited with error Compilation failed

And you then need to go back to your terminal and scroll up to find the Elm errors. I know elm-webpack-loader used to show the Elm errors directly in the overlay which was really nice.

I don’t know why these errors stopped showing up in the overlay, but I managed to get them back by changing the compile function:

function compile(sources, options) {
    var suffix = getSuffix(options.output, ".js");
    return new Promise(function (resolve, reject) {
        temp.open({ suffix: suffix }, function (err, info) {
            if (err) {
                return reject(err);
            }
            options.output = info.path;
            options.processOpts = { stdio: "pipe" };

            var compiler;

            try {
                compiler = elmCompiler.compileSync(sources, options);
            }
            catch (compileError) {
                return reject(compileError);
            }

          if (compiler.status !== 0) {
            reject(compiler.stderr.toString("utf-8"));
          }

          fs.readFile(info.path, { encoding: "utf8" }, function (err, data) {
              return err ? reject(err) : resolve(data);
          });
        });
    });
}

[Arrow7000]

Apparently there is already a PR to fix this, it just needs to be merged by someone with write access 😕 #224