test workflow update

.gitea/scripts/update-appimage-nix.sh

@@ -0,0 +1,71 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+: "${FILE:?FILE is required}"
+: "${LATEST_RELEASE_URL:?LATEST_RELEASE_URL is required}"
+: "${DOWNLOAD_URL_TEMPLATE:?DOWNLOAD_URL_TEMPLATE is required}"
+: "${RELEASE_API_REPO:?RELEASE_API_REPO is required}"
+
+version_strip_prefix="${LATEST_VERSION_STRIP_PREFIX:-v}"
+release_tag_template="${RELEASE_TAG_TEMPLATE:-{version}}"
+
+current_version=$(python - <<'PY'
+import re
+import os
+p=os.environ['FILE']
+s=open(p).read()
+m=re.search(r'version\s*=\s*"([^"]+)";', s)
+print(m.group(1) if m else "")
+PY
+)
+
+latest_version=$(curl -fsSLI -o /dev/null -w '%{url_effective}' "$LATEST_RELEASE_URL" \
+  | sed -E 's#.*/##')
+
+if [ -n "$version_strip_prefix" ]; then
+  latest_version="${latest_version#${version_strip_prefix}}"
+fi
+
+echo "current=$current_version"
+echo "latest=$latest_version"
+
+if [ -z "$latest_version" ] || [ "$latest_version" = "$current_version" ]; then
+  echo "updated=false" >> "$GITHUB_OUTPUT"
+  exit 0
+fi
+
+download_url="${DOWNLOAD_URL_TEMPLATE//\{version\}/$latest_version}"
+new_hash=$(nix store prefetch-file --json "$download_url" | python -c 'import json,sys; print(json.load(sys.stdin)["hash"])')
+
+export LATEST_VERSION="$latest_version"
+export NEW_HASH="$new_hash"
+
+python - <<'PY'
+import os
+import re
+p=os.environ['FILE']
+s=open(p).read()
+s=re.sub(r'version\s*=\s*"[^"]+"', f'version = "{os.environ["LATEST_VERSION"]}"', s, count=1)
+s=re.sub(r'hash\s*=\s*"[^"]+"', f'hash = "{os.environ["NEW_HASH"]}"', s, count=1)
+open(p,'w').write(s)
+PY
+
+echo "updated=true" >> "$GITHUB_OUTPUT"
+echo "version=$latest_version" >> "$GITHUB_OUTPUT"
+echo "previous_version=$current_version" >> "$GITHUB_OUTPUT"
+
+release_tag="${release_tag_template//\{version\}/$latest_version}"
+release_notes=$(curl -fsSL "https://api.github.com/repos/${RELEASE_API_REPO}/releases/tags/${release_tag}" \
+  | python -c 'import json,sys; d=json.load(sys.stdin); print((d.get("body") or "").strip())' \
+  || true)
+
+if [ -z "$release_notes" ]; then
+  release_notes="_No changelog found in upstream release notes._"
+fi
+
+delimiter="CHANGELOG_$(date +%s%N)"
+{
+  echo "changelog<<${delimiter}"
+  printf '%s\n' "$release_notes"
+  echo "${delimiter}"
+} >> "$GITHUB_OUTPUT"