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GHCup.md
121
GHCup.md
@ -124,21 +124,26 @@ curl -s -L 'https://downloads.haskell.org/~ghc/9.6.5/ghc-9.6.5-x86_64-fedora33-l
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# Relationships
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## Upstream (dependencies)
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::: incremental
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- supported tools
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- GHC
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- Cabal
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- HLS
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- Stack
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- GHC
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- Cabal
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- HLS
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- Stack
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. . .
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:::
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- decisions that affect us
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- release frequency
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- upstream CI
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- platform support
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- binary distributions (the `.tar.gz`/`.zip`)
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## Downstream (dependents)
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::: incremental
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- {#id .class height=32px} Haskell developers
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- beginners, advanced, students, companies
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- {#id .class width=32 height=32px} end users (e.g. compiling pandoc from source)
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@ -149,18 +154,17 @@ curl -s -L 'https://downloads.haskell.org/~ghc/9.6.5/ghc-9.6.5-x86_64-fedora33-l
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- 🧰 tools
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- [vscode-haskell](https://github.com/haskell/vscode-haskell), [Haskell playground](https://play.haskell.org/), [nvim-lsp-installer](https://github.com/williamboman/nvim-lsp-installer)
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:::
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# Bits and pieces
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# The installer in detail
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## How does it work?
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::: incremental
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* **Architectural components**
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- {#id .class height=32px} bootstrap scripts
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- {#id .class height=32px} ghcup binary (compiled)
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- {#id .class height=32px} ghcup-metadata
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. . .
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* **Logical components**
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- {#id .class height=32px} cli interface
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- {#id .class height=32px} file layout / installation destination
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@ -168,8 +172,6 @@ curl -s -L 'https://downloads.haskell.org/~ghc/9.6.5/ghc-9.6.5-x86_64-fedora33-l
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- {#id .class height=32px} tui interface
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- {#id .class height=32px} configuration
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:::
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## Basic CLI (context)
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* **Architectural components**
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@ -348,29 +350,83 @@ curl -s -L 'https://downloads.haskell.org/~ghc/9.6.5/ghc-9.6.5-x86_64-fedora33-l
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{#id .class height=550px}
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# Distribution
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## What is distribution?
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* QA gate between "upstream" and "downstream"
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* trust relationship (with upstream and downstream)
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* release selection and defaults
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* binary distribution
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## What happens on e.g. a GHC release
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- testing and inspection of bindists
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- manual
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- automated at [github.com/haskell/ghcup-metadata](https://github.com/haskell/ghcup-metadata/blob/develop/.github/workflows/bindists.yaml)
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- fixing bindists
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- building additional bindists (e.g. FreeBSD)
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. . .
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- forks at [github.com/stable-haskell](https://github.com/stable-haskell)
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- builds cabal, stack and HLS binaries
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- GHC TBD
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## The "recommended" versions (defaults)
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* community adoption (both industry and "open source")
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* stack LTS
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* HLS support
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* known issues and regressions
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* GHC HQs opinion and support window
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* must be consistent across platforms
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# Contributing
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## How to contribute
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**Some live action:**
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- project structure
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- building the project (flags and project files)
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- small code walkthrough
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## The future
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::: incremental
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- loose project structure (BDFL)
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- discuss early
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- repositories
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- [github.com/haskell/ghcup-hs](https://github.com/haskell/ghcup-hs): documentation, bootstrap-scripts, ghcup exe
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- [github.com/haskell/ghcup-metadata](https://github.com/haskell/ghcup-metadata): bindist mapping (YAML), bindist testing
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- build with cabal/stack
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- communication
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- [#haskell-ghcup](https://kiwiirc.com/nextclient/irc.libera.chat/?nick=Guest%7C?##haskell-ghcup) on libera IRC
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- [#ghcup:matrix.org](https://matrix.to/#/#ghcup:matrix.org) (bridged with IRC)
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- github issues
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- [haskell discourse](https://discourse.haskell.org/) (interacting with the community)
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:::
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## Cool things to contribute to
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- documentation
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- discussions
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- defaults (e.g. "recommended" versions)
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- overview of GHC issues and regressions
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- Dhall
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- manpage (via [optparse-applicative](https://github.com/pcapriotti/optparse-applicative/issues/176)?)
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- TUI (ask @lsmor)
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- YAML schema for metadata
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- integration test
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- new commands
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- e.g. "health check"
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## Hard things to contribute to
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- nightlies
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- revisions
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- cross compiler support
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- curating old releases
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- proper API for e.g. stack
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- beefed up `ghcup compile` interface
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- TUF?
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- supporting more tools (installer DSL)
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:::
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## Advanced topics
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- bootstrap scripts
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@ -383,18 +439,3 @@ curl -s -L 'https://downloads.haskell.org/~ghc/9.6.5/ghc-9.6.5-x86_64-fedora33-l
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- isolated installs
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- mirrors
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## Cool things to contribute to
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- documentation
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- discussions
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- deciding on defaults (metadata etc.)
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- API for e.g. stack
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- Dhall
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- manpage (via [optparse-applicative](https://github.com/pcapriotti/optparse-applicative/issues/176)?)
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- TUI (@lsmor)
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- YAML schema for metadata
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- integration test
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- cross compiler support
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- nightlies
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- "health check" command
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