buildDotnetGlobalTool: add default updateScript

pkgs/build-support/dotnet/build-dotnet-global-tool/default.nix

@@ -29,6 +29,15 @@ buildDotnetModule (
       dotnet-runtime ? dotnet-sdk,
       ...
     }@args:
+    let
+      nupkg = fetchNupkg {
+        pname = nugetName;
+        inherit version;
+        sha256 = nugetSha256;
+        hash = nugetHash;
+        installable = true;
+      };
+    in
     args
     // {
       inherit
@@ -40,15 +49,7 @@ buildDotnetModule (
 
       src = emptyDirectory;
 
-      buildInputs = [
-        (fetchNupkg {
-          pname = nugetName;
-          inherit version;
-          sha256 = nugetSha256;
-          hash = nugetHash;
-          installable = true;
-        })
-      ];
+      buildInputs = [ nupkg ];
 
       dotnetGlobalTool = true;
 
@@ -67,6 +68,11 @@ buildDotnetModule (
 
         runHook postInstall
       '';
+
+      passthru = {
+        updateScript = ./update.sh;
+        nupkg = nupkg;
+      } // args.passthru or {};
     }
   )
     (if lib.isFunction fnOrAttrs then fnOrAttrs finalAttrs else fnOrAttrs)

pkgs/build-support/dotnet/build-dotnet-global-tool/update.sh

@@ -0,0 +1,24 @@
+#!/usr/bin/env nix-shell
+#!nix-shell -I nixpkgs=./. -i bash -p curl jq nix common-updater-scripts
+# shellcheck shell=bash
+
+set -euo pipefail
+
+attr=$UPDATE_NIX_ATTR_PATH
+
+nixeval() {
+    nix --extra-experimental-features nix-command eval --json --impure -f . "$1" | jq -r .
+}
+
+nugetName=$(nixeval "$attr.nupkg.pname")
+
+# always skip prerelease versions for now
+version=$(curl -fsSL "https://api.nuget.org/v3-flatcontainer/$nugetName/index.json" |
+    jq -er '.versions | last(.[] | select(match("^[0-9]+\\.[0-9]+\\.[0-9]+$")))')
+
+if [[ $version == $(nixeval "$attr.version") ]]; then
+    echo "$attr" is already version "$version"
+    exit 0
+fi
+
+update-source-version "$attr" "$version" --source-key=nupkg.src

pkgs/by-name/cs/csharp-ls/package.nix

@@ -2,7 +2,6 @@
   lib,
   buildDotnetGlobalTool,
   dotnetCorePackages,
-  nix-update-script,
 }:
 let
   inherit (dotnetCorePackages) sdk_8_0;
@@ -17,10 +16,6 @@ buildDotnetGlobalTool rec {
   dotnet-sdk = sdk_8_0;
   dotnet-runtime = sdk_8_0;
 
-  passthru = {
-    updateScript = nix-update-script { };
-  };
-
   meta = {
     description = "Roslyn-based LSP language server for C#";
     mainProgram = "csharp-ls";

pkgs/development/tools/fable/default.nix

@@ -5,7 +5,6 @@ buildDotnetGlobalTool {
   version = "4.20.0";
 
   nugetHash = "sha256-K3908gEbl9crT4wmZfBtvag5Z6qYABfalBfLZlqZuDk=";
-  passthru.updateScript = ./update.sh;
 
   meta = with lib; {
     description = "Fable is an F# to JavaScript compiler";

pkgs/development/tools/fable/update.sh

@@ -1,39 +0,0 @@
-#!/usr/bin/env nix-shell
-#!nix-shell -i bash -p curl gnused nix-prefetch jq
-
-set -euo pipefail
-URL="https://github.com/fable-compiler/fable"
-PKG="Fable"
-ROOT="$(dirname "$(readlink -f "$0")")"
-NIX_DRV="$ROOT/default.nix"
-if [ ! -f "$NIX_DRV" ]; then
-  echo "ERROR: cannot find default.nix in $ROOT"
-  exit 1
-fi
-
-TMP="$(mktemp -d)"
-clean_up() {
-    rm -rf "$TMP"
-}
-trap clean_up EXIT SIGINT SIGTERM
-PACKAGES="$TMP/packages"
-SRC_RW="$TMP/src"
-
-mkdir -p $SRC_RW
-mkdir -p $PACKAGES
-
-
-VER=$(curl -s "https://api.github.com/repos/fable-compiler/fable/releases/latest" | jq -r .tag_name | grep -oP '\d+\.\d+\.\d+' )
-
-CURRENT_VER=$(grep -oP '(?<=version = ")[^"]+' "$NIX_DRV")
-if [[ "$CURRENT_VER" == "$VER" ]]; then
-    echo "$PKG is already up to date: $CURRENT_VER"
-    exit
-fi
-
-
-NUGET_URL="$(curl -f "https://api.nuget.org/v3/index.json" | jq --raw-output '.resources[] | select(."@type" == "PackageBaseAddress/3.0.0")."@id"')$PKG/$VER/$PKG.$VER.nupkg"
-HASH=$(nix-hash --to-sri --type sha256 "$(nix-prefetch-url "$NUGET_URL")")
-
-sed -i "s/version = \".*\"/version = \"$VER\"/" "$NIX_DRV"
-sed -i "s#nugetHash = \"sha256-.\{44\}\"#nugetHash = \"$HASH\"#" "$NIX_DRV"