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document use of meta, src, and originalSrc attrs

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Travis A. Everett 2022-09-18 13:44:04 -05:00
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doc/nixpkgs-maintainer-faq.md
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@ -66,6 +66,8 @@ Some attrpaths have versions appended to the end of them, like `ruby_3_0`, the n
If `nix edit $attrpath` does not open the correct file that contains the version string and fetcher hash, the update will fail.
This might not work, for example, if a package doesn't have a `meta` attr (at all, or if the package uses a builder function that is discarding the `meta` attr).
### Update already merged
If the update is already on `master`, `staging`, or `staging-next`, the update will fail.
@ -74,6 +76,8 @@ If the update is already on `master`, `staging`, or `staging-next`, the update w
If the derivation file has no hash or source URL, it will fail.
Since `nixpkgs-update` is trying to read these from `<pkg>.src`, this can also happen if the package's source is something unexpected such as another package. You can set the fallback `originalSrc` attr so that `nixpkgs-update` can find the correct source in cases like this.
### No updateScript and no version
If the derivation file has no version and no updateScript, it will fail.