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add docs for -XepExcludedPaths #818

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Nov 9, 2017
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add docs for -XepExcludedPaths #818

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11 changes: 11 additions & 0 deletions docs/flags.md
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Expand Up @@ -37,6 +37,17 @@ There are also a few blanket severity-changing flags:
* `-XepDisableAllChecks`
* `-XepDisableWarningsInGeneratedCode`

Additionally, you can completely exclude certain paths
from any Error Prone checking via the `-XepExcludedPaths` flag. The
flag takes as an argument a regular expression that is matched against
a source file's path to determine whether it should be excluded.
So, to exclude files in any sub-directory of a path containing `build/generated`,
use the option:

```bash
-XepExcludedPaths:.*/build/generated/.*
```

If you pass a flag that refers to an unknown check name, by default Error Prone
will throw an error. You can allow the use of unknown check names by passing the
`-XepIgnoreUnknownCheckNames` flag.
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