Can't use this plugin with rollup watch

[sateffen]

When using rollup in watch mode (rollup --watch) this plugin will allow the first build but no following one. Each time I change a file it tells me:

bundling...
� ENOENT: no such file or directory, open '.../.cache/rollup-plugin-typescript2/38c1142761dfd23593156a9ffdbc77dede334f14/code/cache_/ff351ee7256cf7
98f62b4f46f09ac4534010406c'
src/gl/gl.tsx

The file does not exist, but I guess it's the hash of the new file. In this scenario, I changed some code in src/gl/gl.tsx, which lead to the rebuild.

Stopping rollup --watch and rerunning it generates a valid bundle, but every following build afterwards are breaking as well.

I'm using rollup 0.41.5, rollup-plugin-typescript2 0.3.0 and node 6.9.1

[ezolenko]

I got over that one in the watch branch somewhat. But there is a bigger problem -- rollup-watch only looks at modules that rollup sees, and that excludes any type-only imports and all d.ts files. Basically every time ts will not generate a require call, rollup will not see that file. So you can mutilate your interface definitions all you want, rollup won't try to transpile that file or anything that imports it.

[sateffen]

In my opinion that's ok, if it's pointed out in the documentation.

the d.ts files are meta information, that append the usual information. It's not that cool, that the d.ts changes get ignored, but it's actually something I personally could work with. The most important thing is to tell it straight forward in the documentation.

Maybe there'll be an option for this in the future, or the guys from rollup know a possible solution?

[ezolenko]

Could you try with master branch to see if it behaves reasonably?

[brandom]

I just tried master with --watch and I get Cannot read property 'length' of undefined.

Compiles correctly but with similar error to above on file change on 0.3.0.

[ezolenko]

@brandom: what's your rollup config look like? I'm trying to detect watch mode by counting targets, maybe you don't have any defined...

[brandom]

Rollup config

export default {
  format: "iife",
  sourceMap: true,
  plugins: [
    typescript({
      typescript: require("typescript")
    }),
    node({
      jsnext: true,
      main: true,
      browser: true
    }),
    commonjs(),
    babel({
      babelrc: false,
      exclude: "node_modules/**",
      presets: [
        "es2017",
        "es2016",
        [
          "es2015",
          {
            modules: false
          }
        ]
      ],
      plugins: ["lodash", "external-helpers"]
    })
  ],
  external: []
};

And then spawning --watch from within gulp

function devBundle(cb) {
  let rollup = spawn("./node_modules/.bin/rollup", [
    "-c",
    "rollup.config.dev.js",
    "--watch",
    "--input",
    "./components/app/App.ts",
    "--output",
    `./dist/js/${jsFileName}`
  ]);
  rollup.stderr.on("data", data => rollupLog(data));
  return rollup;
}

[ezolenko]

Ok, your config should work with master now I think (or at least get to the next bug :)).

I'm still seeing weird ignoring of bad edits in index file (while correct errors show up for edits in other files), so this is not quite ready for npm release.

[brandom]

@ezolenko Thanks, I will try to find some time to do some additional testing this weekend.

[ezolenko]

Ok, this is in 0.4.0 now, seems to work aside from #7.