1 files changed, 71 insertions, 0 deletions
diff --git a/nixpkgs/pkgs/development/tools/haskell/haskell-language-server/update.sh b/nixpkgs/pkgs/development/tools/haskell/haskell-language-server/update.sh
new file mode 100755
index 00000000000..fd22a80126d
--- /dev/null
+++ b/nixpkgs/pkgs/development/tools/haskell/haskell-language-server/update.sh
@@ -0,0 +1,71 @@
+#!/usr/bin/env nix-shell
+#!nix-shell -i bash -p cabal2nix jq curl
+#
+# This script will update the haskell-language-server derivation to the latest version using
+# cabal2nix.
+#
+# Note that you should always try building haskell-language-server after updating it here, since
+# some of the overrides in pkgs/development/haskell/configuration-nix.nix may
+# need to be updated/changed.
+#
+# Remember to split out different updates into multiple commits
+
+set -eo pipefail
+
+# This is the directory of this update.sh script.
+script_dir="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null 2>&1 && pwd )"
+
+# ===========================
+# ghcide fork on https://github.com/wz1000/ghcide
+# ===========================
+
+# ghcide derivation created with cabal2nix.
+ghcide_derivation_file="${script_dir}/hls-ghcide.nix"
+
+# This is the current revision of hls in Nixpkgs.
+ghcide_old_version="$(sed -En 's/.*\bversion = "(.*?)".*/\1/p' "$ghcide_derivation_file")"
+
+# This is the revision of ghcide used by hls on GitHub.
+ghcide_new_version=$(curl --silent "https://api.github.com/repos/haskell/haskell-language-server/contents/ghcide" | jq '.sha' --raw-output)
+
+echo "Updating haskell-language-server's ghcide from old version $ghcide_old_version to new version $ghcide_new_version."
+echo "Running cabal2nix and outputting to ${ghcide_derivation_file}..."
+
+cabal2nix --revision "$ghcide_new_version" "https://github.com/haskell/ghcide" > "$ghcide_derivation_file"
+
+# ===========================
+# HLS maintainer's Brittany fork
+# ===========================
+
+# brittany derivation created with cabal2nix.
+brittany_derivation_file="${script_dir}/hls-brittany.nix"
+
+# This is the current revision of the brittany fork in Nixpkgs.
+brittany_old_version="$(sed -En 's/.*\bversion = "(.*?)".*/\1/p' "$brittany_derivation_file")"
+
+brittany_new_version=$(curl --silent "https://api.github.com/repos/bubba/brittany/commits/ghc-8.10.1" | jq '.sha' --raw-output)
+
+echo "Updating haskell-language-server's brittany from old version $brittany_old_version to new version $brittany_new_version."
+echo "Running cabal2nix and outputting to ${brittany_derivation_file}..."
+
+cabal2nix --revision "$brittany_new_version" "https://github.com/bubba/brittany" > "$brittany_derivation_file"
+
+# ===========================
+# HLS
+# ===========================
+
+# hls derivation created with cabal2nix.
+hls_derivation_file="${script_dir}/default.nix"
+
+# This is the current revision of hls in Nixpkgs.
+hls_old_version="$(sed -En 's/.*\bversion = "(.*?)".*/\1/p' "$hls_derivation_file")"
+
+# This is the latest release version of hls on GitHub.
+hls_new_version=$(curl --silent "https://api.github.com/repos/haskell/haskell-language-server/commits/master" | jq '.sha' --raw-output)
+
+echo "Updating haskell-language-server from old version $hls_old_version to new version $hls_new_version."
+echo "Running cabal2nix and outputting to ${hls_derivation_file}..."
+
+cabal2nix --revision "$hls_new_version" "https://github.com/haskell/haskell-language-server.git" > "$hls_derivation_file"
+
+echo "Finished."