Fix error from undefined process.stderr #628
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* Fix `Uncaught TypeError: Cannot read property 'write' of undefined`
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@alice-0-kim What environment are you running bunyan in which (FYI on the delay in my responding: |
joshkel
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Mar 22, 2021
Webpack 5 no longer automatically provides polyfills for Node APIs from browser environments. (See "Automatic polyfills for native Node.js modules were removed" under the [Webpack 5 release announcement][1].) This causes problems for Bunyan's use of Node.js-only globals like `process` and `Buffer`. As I understand it, one solution is to do an explicit `require` and, if needed, [configure Webpack's resolve.fallback option][2] to specify how to resolve the `require`d modules. (Bunyan does something similar to this for the `os` and `fs` modules.) The other solution is to check whether the modules are available before continuing. I opted for the second solution in this PR, to avoid introducing a dependency on the [buffer][3] module. This means that Bunyan won't directly support Buffer objects in the browser. There are two references to `process` that I didn't update: `process.env` check and a reference to `process.stderr.write`. `process.env` is specially handled by Node.js, and `process.stderr` is addressed by trentm#628. [1]: https://webpack.js.org/blog/2020-10-10-webpack-5-release/ [2]: https://stackoverflow.com/q/64557638/25507 [3]: https://www.npmjs.com/package/buffer
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Instead of checking whether |
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Uncaught TypeError: Cannot read property 'write' of undefined