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77 lines
2.4 KiB
77 lines
2.4 KiB
#! /usr/bin/env nix-shell
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#! nix-shell -i bash -p nix curl jq nix-prefetch-github git gnused gnugrep -I nixpkgs=.
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# shellcheck shell=bash
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set -eu -o pipefail
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# Stackage solver to use, LTS or Nightly
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# (should be capitalized like the display name)
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SOLVER=LTS
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TMP_TEMPLATE=update-stackage.XXXXXXX
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readonly SOLVER
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readonly TMP_TEMPLATE
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toLower() {
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printf "%s" "$1" | tr '[:upper:]' '[:lower:]'
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}
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tmpfile=$(mktemp "$TMP_TEMPLATE")
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tmpfile_new=$(mktemp "$TMP_TEMPLATE")
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stackage_config="pkgs/development/haskell-modules/configuration-hackage2nix/stackage.yaml"
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trap 'rm "${tmpfile}" "${tmpfile_new}"' 0
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touch "$tmpfile" "$tmpfile_new" # Creating files here so that trap creates no errors.
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curl -L -s "https://stackage.org/$(toLower "$SOLVER")/cabal.config" >"$tmpfile"
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old_version=$(grep '^# Stackage' $stackage_config | sed -e 's/.\+ \([A-Za-z]\+ [0-9.-]\+\)$/\1/g')
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version="$SOLVER $(sed -rn "s/^--.*http:..(www.)?stackage.org.snapshot.$(toLower "$SOLVER")-//p" "$tmpfile")"
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if [[ "$old_version" == "$version" ]]; then
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echo "No new stackage version"
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exit 0 # Nothing to do
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fi
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echo "Updating Stackage from $old_version to $version."
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# Create a simple yaml version of the file.
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sed -r \
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-e '/^--/d' \
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-e 's|^constraints:||' \
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-e 's|^ +| - |' \
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-e 's|,$||' \
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-e '/installed$/d' \
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-e '/^$/d' \
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< "${tmpfile}" | sort --ignore-case >"${tmpfile_new}"
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cat > $stackage_config << EOF
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# Stackage $version
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# This file is auto-generated by
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# maintainers/scripts/haskell/update-stackage.sh
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default-package-overrides:
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EOF
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# Drop restrictions on some tools where we always want the latest version.
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sed -r \
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-e '/ cabal2nix /d' \
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-e '/ distribution-nixpkgs /d' \
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-e '/ jailbreak-cabal /d' \
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-e '/ language-nix /d' \
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-e '/ cabal-install /d' \
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-e '/ lsp /d' \
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-e '/ lsp-types /d' \
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-e '/ lsp-test /d' \
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-e '/ hie-bios /d' \
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< "${tmpfile_new}" >> $stackage_config
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# Explanations:
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# cabal2nix, distribution-nixpkgs, jailbreak-cabal, language-nix: These are our packages and we know what we are doing.
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# lsp, lsp-types, lsp-test, hie-bios: These are tightly coupled to hls which is not in stackage. They have no rdeps in stackage.
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if [[ "${1:-}" == "--do-commit" ]]; then
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git add $stackage_config
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git commit -F - << EOF
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haskellPackages: stackage $old_version -> $version
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This commit has been generated by maintainers/scripts/haskell/update-stackage.sh
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EOF
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fi
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