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nixpkgs/maintainers/scripts/haskell/update-stackage.sh
Malte Brandy 7f236bd4b2
hackage2nix: Split configuration, auto disable hydra builds
We split configuration-hackage2nix.yaml into multiple files.  We bump
cabal2nix-unstable to get support for multiple config files in
hackage2nix.

* The file main.yaml is only supposed to be edited by humans.
* The file stackage.yaml is only supposed to be updated by the
  update-stackage.sh
* The file broken.yaml can be edited by humans, but probably future
  helpers will want to insert broken packages into this file based on
  hydra reports.
* The file transitive-broken.yaml is newly introduced to be generated
  by regenerate-transitive-broken-packages.sh

regenerate-transitive-broken-packages.sh makes a nix query (in
transitive-broken-packages.nix) which evaluates all haskellPackages
once with and once without "allowBroken" this way it get's a list of
packages which are broken by some transitive dependency, but does not
disable packages which have eval errors not caused by a broken package.
2021-05-07 21:58:08 +02:00

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#! /usr/bin/env nix-shell
#! nix-shell -i bash -p nix curl jq nix-prefetch-github git gnused gnugrep -I nixpkgs=.
set -eu -o pipefail
tmpfile=$(mktemp "update-stackage.XXXXXXX")
# shellcheck disable=SC2064
stackage_config="pkgs/development/haskell-modules/configuration-hackage2nix/stackage.yaml"
trap "rm ${tmpfile} ${tmpfile}.new" 0
touch "$tmpfile" "$tmpfile.new" # Creating files here so that trap creates no errors.
curl -L -s "https://stackage.org/nightly/cabal.config" >"$tmpfile"
old_version=$(grep "# Stackage Nightly" $stackage_config | sed -E 's/.*([0-9]{4}-[0-9]{2}-[0-9]{2}).*/\1/')
version=$(sed -rn "s/^--.*http:..(www.)?stackage.org.snapshot.nightly-//p" "$tmpfile")
if [[ "$old_version" == "$version" ]]; then
echo "No new stackage version"
exit 0 # Nothing to do
fi
# Create a simple yaml version of the file.
sed -r \
-e '/^--/d' \
-e 's|^constraints:||' \
-e 's|^ +| - |' \
-e 's|,$||' \
-e '/installed$/d' \
-e '/^$/d' \
< "${tmpfile}" | sort --ignore-case >"${tmpfile}.new"
cat > $stackage_config << EOF
# Stackage Nightly $version
# This file is auto-generated by
# maintainers/scripts/haskell/update-stackage.sh
default-package-overrides:
EOF
# Drop restrictions on some tools where we always want the latest version.
sed -r \
-e '/ cabal-install /d' \
-e '/ cabal2nix /d' \
-e '/ cabal2spec /d' \
-e '/ distribution-nixpkgs /d' \
-e '/ git-annex /d' \
-e '/ hindent /d' \
-e '/ hledger/d' \
-e '/ hlint /d' \
-e '/ hoogle /d' \
-e '/ hopenssl /d' \
-e '/ jailbreak-cabal /d' \
-e '/ json-autotype/d' \
-e '/ language-nix /d' \
-e '/ shake /d' \
-e '/ ShellCheck /d' \
-e '/ stack /d' \
-e '/ weeder /d' \
< "${tmpfile}.new" >> $stackage_config
if [[ "${1:-}" == "--do-commit" ]]; then
git add $config_file
git commit -F - << EOF
Stackage Nightly: $old_version -> $version
This commit has been generated by maintainers/scripts/haskell/update-stackage.sh
EOF
fi