add release util script

flake.nix

@@ -32,6 +32,7 @@ rec {
 				inherit system;
 				program = "${default}/bin/${default.pname}";
 			};
+			updateRelease = writeScriptBin "update-release" (builtins.readFile ./utils/update-release.sh);
 		};
 
 	};

utils/update-release.sh

@@ -0,0 +1,40 @@
+#!/bin/bash
+
+execute() {
+  if [ "$dry_run" == "1" ]; then
+    echo "Dry run: $*"
+  else
+    "$@"
+  fi
+}
+
+dry_run=0
+[ "$1" == "--dry-run" ] && dry_run=1
+
+read -p "Enter new version number: " new_version
+
+execute sed -i "s/version = \"[0-9.]*\"/version = \"$new_version\"/" src/setup.py
+execute sed -i "s/version = \"[0-9.]*\";/version = \"$new_version\";/" flake.nix
+
+git diff
+
+read -p "Confirm changes and continue? (y/n): " confirm
+[ "$confirm" != "y" ] && echo "Aborting." && exit 1
+
+execute git add src/setup.py flake.nix
+
+git diff --cached
+
+read -p "Confirm commit and continue? (y/n): " confirm_commit
+[ "$confirm_commit" != "y" ] && echo "Aborting." && git reset && exit 1
+
+execute git commit -m "Bump version to $new_version"
+execute git tag "v$new_version"
+
+read -p "Push changes and tag to remote? (y/n): " confirm_push
+[ "$confirm_push" != "y" ] && echo "Aborting." && exit 1
+
+execute git push origin master
+execute git push origin "v$new_version"
+
+echo "Done!"