Problem with "type" : "module" option in package.json

[cimchd]

I have a project with es modules enabled in the package.json.

// package.json
{
  "name": "project",
  "type": "module",
  "dependencies:  {
    ...
  }
   ...
}

I ran the command vite-ssg buildand got the following errot: Error [ERR_REQUIRE_ESM]: Must use import to load ES Module

I figured out the problem is that the generated file in the .vite-ssg-temp folder is a common.js file with file ending .js. I changed the file ending to .cjs and it worked for me.

[cimchd]

Added a pull request how I solved it in vite-ssg as an option without breaking changes.

[cimchd]

In the meantime i canceled my pr from above and instead changed the rollup options in node/build.ts to use .cjs instead of .js :

      rollupOptions: {
        output: {
          entryFileNames: '[name].cjs',
        },
      },

If you want me to create a pr, just let me know.

[antfu]

That looks like a much better solution, PR welcome 👍 (we could do that without an option but check the package.json directly)

[cimchd]

Good idea. I used read-pkg-up package to determine the nearest package.json file. So we should not need an option for this.