Combine test and nix CI scripts

.github/workflows/nix.yml

@@ -21,6 +21,5 @@ jobs:
     - uses: cachix/cachix-action@v8
       with:
         name: haskell-language-server
-        extraPullNames: haskell-ghcide
         authToken: '${{ secrets.HLS_CACHIX_AUTH_TOKEN }}'
     - run: nix-shell --argstr compiler ${{ matrix.ghc }} --run "cabal update && cabal build"

.github/workflows/test.yml

@@ -9,6 +9,7 @@ jobs:
       matrix:
         ghc: ["8.10.2", "8.10.1", "8.8.4", "8.8.3", "8.8.2", "8.6.5", "8.6.4"]
         os: [ubuntu-latest, macOS-latest, windows-latest]
+        ghc-lib: [false]
         exclude:
           - os: windows-latest
             ghc: "8.10.2" # broken due to https://gitlab.haskell.org/ghc/ghc/-/issues/18550
@@ -21,6 +22,10 @@ jobs:
         include:
           - os: windows-latest
             ghc: "8.10.2.2" # only available for windows and choco
+          # one ghc-lib build
+          - os: ubuntu-latest
+            ghc: '8.10.1'
+            ghc-lib: true
 
     steps:
       - uses: actions/checkout@v2
@@ -32,6 +37,9 @@ jobs:
           cabal-version: "3.2"
           enable-stack: true
 
+      - run: ./fmt.sh
+        name: "HLint via ./fmt.sh"
+
       - name: Cache Cabal
         uses: actions/cache@v2
         env:
@@ -62,6 +70,7 @@ jobs:
         run: cabal build || cabal build || cabal build
 
       - name: Test func-test suite
+        if: ${{ !matrix.ghc-lib }}
         shell: bash
         env:
           HLS_TEST_EXE: hls
@@ -72,6 +81,7 @@ jobs:
         run: cabal test func-test --test-options="-j1 --rerun-update" || cabal test func-test --test-options="-j1 --rerun --rerun-update" || cabal test func-test --test-options="-j1 --rerun" || LSP_TEST_LOG_COLOR=0 LSP_TEST_LOG_MESSAGES=true LSP_TEST_LOG_STDERR=true cabal test func-test --test-options="-j1 --rerun"
 
       - name: Test wrapper-test suite
+        if: ${{ !matrix.ghc-lib }}
         shell: bash
         env:
           HLS_TEST_EXE: hls
@@ -80,3 +90,9 @@ jobs:
         # all functional test cases simultaneously which causes way too many hls
         # instances to be spun up for the poor github actions runner to handle
         run: cabal test wrapper-test --test-options="-j1" || cabal test wrapper-test --test-options="-j1" || cabal test wrapper-test --test-options="-j1"
+
+      - name: Test ghcide
+        if: ${{ !matrix.ghc-lib }}
+        shell: bash
+        # run the tests without parallelism to avoid running out of memory
+        run: cabal test ghcide --test-options="-j1 --rerun-update" || cabal test ghcide --test-options="-j1 --rerun" || LSP_TEST_LOG_COLOR=0 LSP_TEST_LOG_MESSAGES=true LSP_TEST_LOG_STDERR=true cabal test ghcide --test-options="-j1 --rerun"

fmt.sh

@@ -0,0 +1,3 @@
+#!/usr/bin/env bash
+set -eou pipefail
+curl -sSL https://raw.github.com/ndmitchell/hlint/master/misc/run.sh | sh -s ghcide/src ghcide/exe ghcide/bench shake-bench/src ghcide/test/exe --with-group=extra --hint=ghcide/.hlint.yaml