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Remove GHCup vanilla channel from defaults #137

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Merged
andreasabel merged 1 commit into from
Jan 11, 2026
Merged

Remove GHCup vanilla channel from defaults #137

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9 changes: 8 additions & 1 deletion dist/index.js
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9 changes: 8 additions & 1 deletion lib/setup-haskell.js
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9 changes: 8 additions & 1 deletion src/setup-haskell.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -43,7 +43,14 @@ export default async function run(
await core.group(`Preparing ghcup environment`, async () => {
// Andreas Abel, 2026-01-01, https://github.com/haskell-actions/setup/issues/78
// Add ghcup vanilla and prereleases channels by default.
await addGhcupReleaseChannel('vanilla', os, arch);
// Andreas Abel, 2026-01-11, https://github.com/haskell-actions/setup/issues/136
// There are reasons not to include the vanilla channel by default:
// mpickering write:
// the "vanilla" channel is the bindists "as released by GHC upstream",
// which is a change from the default, which provides curated bindists.
// In particular on the cabal repo this meant a 9.0.2 bindist without
// profiling libraries was downloaded by CI and caused a test to fail.
// await addGhcupReleaseChannel('vanilla', os, arch);
await addGhcupReleaseChannel('prereleases', os, arch);
if (opts.ghcup.releaseChannel)
await addGhcupReleaseChannel(
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