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feat(gatsby): add opt out flag SKIP_PLUGIN_OPTION_VALIDATION to bypass validation #27885

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feat(gatsby): add opt out flag SKIP_PLUGIN_OPTION_VALIDATION to bypass validation #27885

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33846a9
add opt out flag to skip plugin option validation
gillkyle Nov 6, 2020
31a5394
add note to docs about flag
gillkyle Nov 6, 2020
d720f48
Apply suggestions from code review
gillkyle Nov 9, 2020
bb319dc
move warning so validation still happens
gillkyle Nov 9, 2020
e3cad1a
switch assertions in tests
gillkyle Nov 9, 2020
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8 changes: 8 additions & 0 deletions docs/docs/configuring-usage-with-plugin-options.md
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Expand Up @@ -276,6 +276,14 @@ describe(`pluginOptionsSchema`, () => {
})
```

### Opting out of plugin option validation

If you are running your site and run into an error trying to develop or build your site due to plugin options failing that are undocumented or seem erroneous, you can add the `SKIP_PLUGIN_OPTION_VALIDATION` flag set to `true`. It can be prepended to your develop and build scripts, included as an [environment variable](/docs/environment-variables/) in a .env file, or included before your `gatsby develop` command like this:

```shell
SKIP_PLUGIN_OPTION_VALIDATION=true gatsby develop
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Bikeshedding, feel free to ignore/postpone

I'd rather not add this to the docs so explicitly because we don't really want people to use this unless they have a blocking error.

I would prefer if we add that information to the error log if they have an error with an ominous warning, for example something like:

success open and validate gatsby-configs - 0.017s

 ERROR #11331  PLUGIN

Invalid plugin options for "gatsby-plugin-manifest":

- "name" must be a string

If you are certain your configuration is correct, you can disable configuration validation with the SKIP_PLUGIN_OPTION_VALIDATION environment variable. Be careful, this could have unintended side effects!

not finished load plugins - 2.391s

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Ooh, this is a fun one. Ya, I totally see what you mean. At the same time, how often do people skip error messages and go googling? No strong feelings, just a weird thought exercise.

```

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## Additional resources

- [Example Gatsby site using plugin options with a local plugin](https://github.com/gatsbyjs/gatsby/tree/master/examples/using-plugin-options)
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7 changes: 7 additions & 0 deletions packages/gatsby/src/bootstrap/load-plugins/validate.ts
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Expand Up @@ -271,6 +271,13 @@ export async function validateConfigPluginsOptions(
rootDir: string | null
): Promise<void> {
if (!config.plugins) return
if (process.env.SKIP_PLUGIN_OPTION_VALIDATION) {
reporter.warn(`you have enabled the SKIP_PLUGIN_OPTION_VALIDATION flag,`)
reporter.warn(
`meaning Gatsby will not enforce types based on plugin's option schemas.`
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)
return
}

const { errors, plugins } = await validatePluginsOptions(
config.plugins,
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