Simplification of Nix flake and removal of GHC 8 (#245)

Co-authored-by: CristhianMotoche <[email protected]>
Co-authored-by: Sebastián Estrella <[email protected]>

Author: 3 people

.envrc

@@ -0,0 +1 @@
+use flake

.github/workflows/build.yml

@@ -15,9 +15,6 @@ jobs:
           - macos-13      # x86_64-darwin
           - macos-latest  # aarch64-darwin
           - ubuntu-latest # x86_64-linux
-        ghc:
-          - ghc8107
-          - ghc902
       fail-fast: true
     runs-on: ${{ matrix.os }}
     timeout-minutes: 30
@@ -28,9 +25,9 @@ jobs:
           extra-conf: accept-flake-config = true
       - uses: DeterminateSystems/magic-nix-cache-action@v7
       - name: Compile code ${{ matrix.ghc }}
-        run: nix build .#test-${{ matrix.ghc }}
+        run: nix build .#test
       - name: Run tests ${{ matrix.ghc }}
-        run: nix run .#test-${{ matrix.ghc }}
+        run: nix run .#test
 
   docker:
     uses: ./.github/workflows/reusable-docker.yml

.gitignore

@@ -6,7 +6,6 @@
 *.o
 .cabal-sandbox/
 .direnv/
-.envrc
 .hpc
 .hsenv
 .tool-versions

Dockerfile

@@ -1,4 +1,4 @@
-FROM utdemir/ghc-musl:v24-ghc902 AS build
+FROM quay.io/benz0li/ghc-musl:9.6.6 AS build
 WORKDIR /usr/src/app
 COPY hapistrano.cabal .
 RUN cabal update && \
@@ -8,7 +8,7 @@ RUN cabal build --enable-executable-static && \
     cp $(cabal exec which hap) hap
 
 FROM alpine:3.15
-MAINTAINER Nicolas Vivar <nvivar@stackbuilders.com>
+MAINTAINER Cristhian Motoche <cmotoche@stackbuilders.com>
 RUN apk update && \
     apk add \
       ca-certificates \

docs/NIX.md

@@ -22,40 +22,27 @@ sudo launchctl start org.nixos.nix-daemon
 ```
 
 If the following messages appear running the scripts detailed in the section
-below, it means that the Nix is not able to talk with the cache, in which case
-is recommended to go over the steps detailed in this section again:
+below, it means that Nix is not picking up the substituters we described
+earlier and is unable to use them as a derivation cache: 
 
 ```
 warning: ignoring untrusted substituter 'https://cache.iog.io'
 ```
+in which case
+it is recommended to go over the steps detailed in this section again, or look for alternative ways to add extra substituters in [nix.conf](https://nix.dev/manual/nix/2.18/command-ref/conf-file).
 
-## Switching between different GHC versions
+## Enabling the development environment
 
-The `bin` directory, holds all available shells:
+To enable the development environment exposed by the project's [Nix flake](../flake.nix), you can start a development shell by running the following command from within the project's root:
 
 ```
-ls bin | grep ghc
+nix develop
 ```
 
-To spawn a new shell with a pre-defined GHC version, choose one of the scripts
-listed above and run the following command:
+Alternatively, if you are using [nix-direnv](https://github.com/nix-community/nix-direnv) (recommended), you can run:
 
-```sh
-./bin/ghc90
 ```
-
-Once inside the shell, verify the GHC version matches the script name:
-
-```
-ghc --version
+direnv allow
 ```
 
-After that, all commands detailed in the [Getting
-Started](../README.md#getting-started) section should work the same.
-
-Alternatively, to run a command without spawning a new shell use the `-c`
-option:
-
-```sh
-./bin/ghc90 -c <command>
-```
+that will enable the development shell according to the contents of [.envrc](../.envrc). It is advisable not to run `direnv allow` blindly and always check the contents of [.envrc](../.envrc) files first to ensure nothing malicious is executed.