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https://github.com/NixOS/nixpkgs.git
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c85656eae6
Since the shebang calls nix-shell, we can safely assume that Nix (Lix, C++ Nix) is installed. Our scripts should support a wide enough range of Nix versions so that using the “impure” version of the tool is not a problem. This works around #400784. My theory is that the Nix frontend commands no longer work with older versions of the Nix daemon nor the Lix daemon in our workloads.
88 lines
2.8 KiB
Bash
Executable file
88 lines
2.8 KiB
Bash
Executable file
#! /usr/bin/env nix-shell
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#! nix-shell -i bash -p curl jq 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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# Stackage solver verson, if any. Use latest if empty
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VERSION=
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TMP_TEMPLATE=update-stackage.XXXXXXX
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readonly SOLVER
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readonly VERSION
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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 "$SOLVER")${VERSION:+-$VERSION}/cabal.config" >"$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 '/^with-compiler:/d' \
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-e '/installed$/d' \
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-e '/^$/d' \
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< "${tmpfile}" | LC_ALL=C.UTF-8 sort --ignore-case >"${tmpfile_new}"
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cat > $stackage_config << EOF
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# Stackage $version
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# This file is auto-generated by
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# maintainers/scripts/haskell/update-stackage.sh
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default-package-overrides:
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EOF
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# Drop restrictions on some tools where we always want the latest version.
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sed -r \
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-e '/ cabal2nix /d' \
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-e '/ distribution-nixpkgs /d' \
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-e '/ jailbreak-cabal /d' \
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-e '/ language-nix /d' \
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-e '/ hackage-db /d' \
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-e '/ cabal-install /d' \
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-e '/ cabal-install-solver /d' \
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-e '/ lsp /d' \
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-e '/ lsp-types /d' \
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-e '/ lsp-test /d' \
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-e '/ hie-bios /d' \
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-e '/ ShellCheck /d' \
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-e '/ Agda /d' \
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-e '/ stack /d' \
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< "${tmpfile_new}" >> $stackage_config
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# Explanations:
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# cabal2nix, distribution-nixpkgs, jailbreak-cabal, language-nix: These are our packages and we know what we are doing.
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# lsp, lsp-types, lsp-test, hie-bios: These are tightly coupled to hls which is not in stackage. They have no rdeps in stackage.
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# ShellCheck: latest version of command-line dev tool.
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# Agda: The Agda community is fast-moving; we strive to always include the newest versions of Agda and the Agda packages in nixpkgs.
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if [[ "${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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