Commit 3bdc03f

@@ -8,7 +8,6 @@
   gst_all_1,
   keybinder3,
   libappindicator,
-  nix-update-script,
 }:
 flutter347.buildFlutterApplication (finalAttrs: {
   pname = "kelivo";
@@ -21,7 +20,7 @@ flutter347.buildFlutterApplication (finalAttrs: {
     hash = "sha256-Y6S29ms0rOE45SrXZIPl3AYEzU3ojFpEn/o8hB+K/a0=";
   };
 
-  passthru.updateScript = nix-update-script {};
+  passthru.updateScript = [(toString ./update.sh)];
 
   pubspecLock = lib.importJSON ./pubspec.lock.json;
 

@@ -0,0 +1,60 @@
+#!/usr/bin/env nix-shell
+#!nix-shell -i bash -p curl -p jq -p nix -p flutter347 -p python3 -p python3Packages.pyyaml
+# shellcheck shell=bash
+set -euo pipefail
+
+REPO_URL="https://github.com/Chevey339/kelivo"
+
+SCRIPT_DIR=$(cd -- "$(dirname -- "${BASH_SOURCE[0]}")" &>/dev/null && pwd)
+PKG_FILE="$SCRIPT_DIR/default.nix"
+PKG_NAME="kelivo"
+
+OLD_VERSION=$(sed -n 's/.*version = "\([^"]*\)";.*/\1/p' "$PKG_FILE" | head -1)
+NEW_VERSION=$(curl -fsSL "${REPO_URL}/releases.atom" | sed -n 's#.*releases/tag/v\([^"<]*\).*#\1#p' | head -1)
+
+if [ "$NEW_VERSION" = "$OLD_VERSION" ]; then
+	exit 0
+fi
+
+NEW_HASH=$(nix store prefetch-file --json --unpack "${REPO_URL}/archive/refs/tags/v${NEW_VERSION}.tar.gz" | jq -r .hash)
+
+TMPDIR=$(mktemp -d)
+trap 'rm -rf "$TMPDIR"' EXIT
+
+curl -fsSL "${REPO_URL}/archive/refs/tags/v${NEW_VERSION}.tar.gz" | tar xz -C "$TMPDIR" --strip-components=1
+chmod -R +w "$TMPDIR"
+
+cp "$SCRIPT_DIR/pubspec.lock.json" "$TMPDIR/pubspec.lock.json.old"
+
+(
+	cd "$TMPDIR"
+	# upstream does not commit pubspec.lock, so resolve it here
+	flutter pub get </dev/null >/dev/null
+)
+
+# flutter writes the YAML pubspec.lock; the package consumes a JSON one.
+python3 - "$TMPDIR/pubspec.lock" <<'PY'
+import json
+import sys
+import yaml
+
+with open(sys.argv[1]) as f:
+    data = yaml.safe_load(f)
+with open(sys.argv[1] + ".json", "w") as f:
+    json.dump(data, f, indent=2)
+    f.write("\n")
+PY
+
+if ! cmp -s "$TMPDIR/pubspec.lock.json.old" "$TMPDIR/pubspec.lock.json"; then
+	cp "$TMPDIR/pubspec.lock.json" "$SCRIPT_DIR/pubspec.lock.json"
+fi
+
+sed -i "s/version = \"$OLD_VERSION\";/version = \"$NEW_VERSION\";/" "$PKG_FILE"
+
+awk -v hash="$NEW_HASH" '
+  /src = fetchFromGitHub {/ { in_src = 1 }
+  in_src && /hash = "[^"]*"/ { sub(/hash = "[^"]*"/, "hash = \"" hash "\""); in_src = 0 }
+  { print }
+' "$PKG_FILE" >"$PKG_FILE.tmp" && mv "$PKG_FILE.tmp" "$PKG_FILE"
+
+echo "$PKG_NAME: $OLD_VERSION -> $NEW_VERSION"