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haskell-updates: update workflow documentation with a few small fixes

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(cdep)illabout 2021-05-30 14:16:03 +09:00
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pkgs/development/haskell-modules/HACKING.md
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@ -221,8 +221,29 @@ causes all currently open Haskell-related pull-requests to be automatically clos
Here are some additional tips that didn't fit in above.
- It is possible to start a new Hydra evaluation by logging into Hydra with
your GitHub or Google account.
- Hydra tries to evalute the `haskell-updates` branch (in the
[`nixpkgs:haskell-updates`](https://hydra.nixos.org/jobset/nixpkgs/haskell-updates)
jobset) every 4 hours. It is possible to force a new Hydra evaluation without
waiting 4 hours by the following steps:
1. Log into Hydra with your GitHub or Google account.
1. Go to the [nixpkgs:haskell-updates](https://hydra.nixos.org/jobset/nixpkgs/haskell-updates) jobset.
1. Click the `Actions` button.
1. Select `Evaluate this jobset`.
1. If you refresh the page, there should be a new `Evaluation running since:` line.
1. Evaluations take about 10 minutes to finish.
- It is sometimes helpful to update the version of
[`cabal2nix` / `hackage2nix`](https://github.com/NixOS/cabal2nix) that our
maintainer scripts use. This can be done with the
[`maintainers/scripts/haskell/update-cabal2nix-unstable.sh`](../../../maintainers/scripts/haskell/update-cabal2nix-unstable.sh)
script.
You might want to do this if a user contributes a fix to `cabal2nix` that
will immediately fix a Haskell package in Nixpkgs. First, merge in
the PR to `cabal2nix`, then run `update-cabal2nix-upstable.sh`. Finally, run
[`regenerate-hackage-packages.sh`](../../../maintainers/scripts/haskell/regenerate-hackage-packages.sh)
to regenerate the Hackage package set with the updated version of `hackage2nix`.
- Make sure never to update the Hackage package hashes in
[`pkgs/data/misc/hackage/`](../../../pkgs/data/misc/hackage/), or the
@ -240,6 +261,9 @@ Here are some additional tips that didn't fit in above.
[`regenerate-hackage-packages.sh`](../../../maintainers/scripts/haskell/regenerate-hackage-packages.sh)
as described above.
- The Haskell team members generally hang out in the Matrix room
[#haskell-space:matrix.org](https://matrix.to/#/#haskell-space:matrix.org).
## Contributor Workflow
(TODO: this section is to describe the type of workflow for non-committers to