pyrox.dev
1#! /usr/bin/env nix-shell
2#! nix-shell -i bash -p nix curl jq git gnused gnugrep -I nixpkgs=.
3# shellcheck shell=bash
4
5set -eu -o pipefail
6
7# Stackage solver to use, LTS or Nightly
8# (should be capitalized like the display name)
9SOLVER=LTS
10# Stackage solver verson, if any. Use latest if empty
11VERSION=
12TMP_TEMPLATE=update-stackage.XXXXXXX
13readonly SOLVER
14readonly VERSION
15readonly TMP_TEMPLATE
16
17toLower() {
18 printf "%s" "$1" | tr '[:upper:]' '[:lower:]'
19}
20
21tmpfile=$(mktemp "$TMP_TEMPLATE")
22tmpfile_new=$(mktemp "$TMP_TEMPLATE")
23
24stackage_config="pkgs/development/haskell-modules/configuration-hackage2nix/stackage.yaml"
25
26trap 'rm "${tmpfile}" "${tmpfile_new}"' 0
27touch "$tmpfile" "$tmpfile_new" # Creating files here so that trap creates no errors.
28
29curl -L -s "https://stackage.org/$(toLower "$SOLVER")${VERSION:+-$VERSION}/cabal.config" >"$tmpfile"
30old_version=$(grep '^# Stackage' $stackage_config | sed -e 's/.\+ \([A-Za-z]\+ [0-9.-]\+\)$/\1/g')
31version="$SOLVER $(sed -rn "s/^--.*http:..(www.)?stackage.org.snapshot.$(toLower "$SOLVER")-//p" "$tmpfile")"
32
33if [[ "$old_version" == "$version" ]]; then
34 echo "No new stackage version"
35 exit 0 # Nothing to do
36fi
37
38echo "Updating Stackage from $old_version to $version."
39
40# Create a simple yaml version of the file.
41sed -r \
42 -e '/^--/d' \
43 -e 's|^constraints:||' \
44 -e 's|^ +| - |' \
45 -e 's|,$||' \
46 -e '/^with-compiler:/d' \
47 -e '/installed$/d' \
48 -e '/^$/d' \
49 < "${tmpfile}" | sort --ignore-case >"${tmpfile_new}"
50
51cat > $stackage_config << EOF
52# Stackage $version
53# This file is auto-generated by
54# maintainers/scripts/haskell/update-stackage.sh
55default-package-overrides:
56EOF
57
58# Drop restrictions on some tools where we always want the latest version.
59sed -r \
60 -e '/ cabal2nix /d' \
61 -e '/ distribution-nixpkgs /d' \
62 -e '/ jailbreak-cabal /d' \
63 -e '/ language-nix /d' \
64 -e '/ hackage-db /d' \
65 -e '/ cabal-install /d' \
66 -e '/ cabal-install-solver /d' \
67 -e '/ lsp /d' \
68 -e '/ lsp-types /d' \
69 -e '/ lsp-test /d' \
70 -e '/ hie-bios /d' \
71 -e '/ ShellCheck /d' \
72 -e '/ Agda /d' \
73 -e '/ stack /d' \
74 < "${tmpfile_new}" >> $stackage_config
75# Explanations:
76# cabal2nix, distribution-nixpkgs, jailbreak-cabal, language-nix: These are our packages and we know what we are doing.
77# lsp, lsp-types, lsp-test, hie-bios: These are tightly coupled to hls which is not in stackage. They have no rdeps in stackage.
78# ShellCheck: latest version of command-line dev tool.
79# Agda: The Agda community is fast-moving; we strive to always include the newest versions of Agda and the Agda packages in nixpkgs.
80
81if [[ "${1:-}" == "--do-commit" ]]; then
82git add $stackage_config
83git commit -F - << EOF
84haskellPackages: stackage $old_version -> $version
85
86This commit has been generated by maintainers/scripts/haskell/update-stackage.sh
87EOF
88fi