2828 strategy :
2929 matrix :
3030 include :
31+ - compiler : ghc-9.12.0.20241128
32+ compilerKind : ghc
33+ compilerVersion : 9.12.0.20241128
34+ setup-method : ghcup-prerelease
35+ allow-failure : false
3136 - compiler : ghc-9.10.1
3237 compilerKind : ghc
3338 compilerVersion : 9.10.1
@@ -107,6 +112,21 @@ jobs:
107112 HCKIND : ${{ matrix.compilerKind }}
108113 HCNAME : ${{ matrix.compiler }}
109114 HCVER : ${{ matrix.compilerVersion }}
115+ - name : Install GHC (GHCup prerelease)
116+ if : matrix.setup-method == 'ghcup-prerelease'
117+ run : |
118+ "$HOME/.ghcup/bin/ghcup" config add-release-channel https://raw.githubusercontent.com/haskell/ghcup-metadata/master/ghcup-prereleases-0.0.8.yaml;
119+ "$HOME/.ghcup/bin/ghcup" install ghc "$HCVER" || (cat "$HOME"/.ghcup/logs/*.* && false)
120+ HC=$("$HOME/.ghcup/bin/ghcup" whereis ghc "$HCVER")
121+ HCPKG=$(echo "$HC" | sed 's#ghc$#ghc-pkg#')
122+ HADDOCK=$(echo "$HC" | sed 's#ghc$#haddock#')
123+ echo "HC=$HC" >> "$GITHUB_ENV"
124+ echo "HCPKG=$HCPKG" >> "$GITHUB_ENV"
125+ echo "HADDOCK=$HADDOCK" >> "$GITHUB_ENV"
126+ env :
127+ HCKIND : ${{ matrix.compilerKind }}
128+ HCNAME : ${{ matrix.compiler }}
129+ HCVER : ${{ matrix.compilerVersion }}
110130 - name : Set PATH and environment variables
111131 run : |
112132 echo "$HOME/.cabal/bin" >> $GITHUB_PATH
@@ -117,7 +137,7 @@ jobs:
117137 echo "HCNUMVER=$HCNUMVER" >> "$GITHUB_ENV"
118138 echo "ARG_TESTS=--enable-tests" >> "$GITHUB_ENV"
119139 echo "ARG_BENCH=--enable-benchmarks" >> "$GITHUB_ENV"
120- echo "HEADHACKAGE=false" >> "$GITHUB_ENV"
140+ if [ $((HCNUMVER >= 91200)) -ne 0 ] ; then echo "HEADHACKAGE=true" >> "$GITHUB_ENV" ; else echo "HEADHACKAGE= false" >> "$GITHUB_ENV" ; fi
121141 echo "ARG_COMPILER=--$HCKIND --with-compiler=$HC" >> "$GITHUB_ENV"
122142 env :
123143 HCKIND : ${{ matrix.compilerKind }}
@@ -145,6 +165,18 @@ jobs:
145165 repository hackage.haskell.org
146166 url: http://hackage.haskell.org/
147167 EOF
168+ if $HEADHACKAGE; then
169+ cat >> $CABAL_CONFIG <<EOF
170+ repository head.hackage.ghc.haskell.org
171+ url: https://ghc.gitlab.haskell.org/head.hackage/
172+ secure: True
173+ root-keys: 7541f32a4ccca4f97aea3b22f5e593ba2c0267546016b992dfadcd2fe944e55d
174+ 26021a13b401500c8eb2761ca95c61f2d625bfef951b939a8124ed12ecf07329
175+ f76d08be13e9a61a377a85e2fb63f4c5435d40f8feb3e12eb05905edb8cdea89
176+ key-threshold: 3
177+ active-repositories: hackage.haskell.org, head.hackage.ghc.haskell.org:override
178+ EOF
179+ fi
148180 cat >> $CABAL_CONFIG <<EOF
149181 program-default-options
150182 ghc-options: $GHCJOBS +RTS -M3G -RTS
@@ -203,6 +235,9 @@ jobs:
203235 cat >> cabal.project <<EOF
204236 allow-newer: websockets:containers
205237 EOF
238+ if $HEADHACKAGE; then
239+ echo "allow-newer: $($HCPKG list --simple-output | sed -E 's/([a-zA-Z-]+)-[0-9.]+/*:\1,/g')" >> cabal.project
240+ fi
206241 $HCPKG list --simple-output --names-only | perl -ne 'for (split /\s+/) { print "constraints: any.$_ installed\n" unless /^(javascript-bridge|javascript-bridge-benchmarks)$/; }' >> cabal.project.local
207242 cat cabal.project
208243 cat cabal.project.local
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