mirror of
https://github.com/rcourtman/Pulse.git
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rcourtman
324 lines
10 KiB
Bash
Executable File
324 lines
10 KiB
Bash
Executable File
#!/usr/bin/env bash
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# Generate release notes with an agent that explores the actual repo history.
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#
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# Engine: headless Claude Code (`claude -p`, uses your Claude subscription —
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# no API key), with Codex CLI (`codex exec`, OpenAI subscription) as fallback.
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# Independent research, drafting, and review passes use read-only repository
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# tools. The models decide what matters from the evidence; the shell only owns
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# the comparison range and the public release-note shape.
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#
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# Usage: ./scripts/generate-release-notes.sh <version> [comparison-tag]
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# ./scripts/generate-release-notes.sh --resolve-base <version>
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#
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# Contract: the release notes markdown is written to STDOUT (trigger-release.sh
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# captures it); all progress/diagnostics go to STDERR. SAVE_TO_FILE=1 also
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# writes release-notes-v<version>.md.
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#
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# Env overrides:
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# RELEASE_NOTES_ENGINE=claude|codex force an engine (default: claude, codex fallback)
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# RELEASE_NOTES_MODEL=<model> model for the claude engine (default: opus)
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# RELEASE_NOTES_TRACE_DIR=<directory> retain each pass for inspection
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set -euo pipefail
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MODE=generate
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if [ "${1:-}" = "--resolve-base" ]; then
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MODE=resolve-base
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shift
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fi
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VERSION=${1:-}
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REQUESTED_COMPARISON_TAG=${2:-}
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if [ -z "$VERSION" ]; then
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echo "Usage: $0 <version> [comparison-tag]" >&2
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echo " $0 --resolve-base <version>" >&2
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echo "Example: $0 6.4.0-rc.6" >&2
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exit 1
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fi
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cd "$(git rev-parse --show-toplevel)"
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VERSION=${VERSION#v}
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latest_stable_before() {
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local target_tag="v$1"
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local candidate
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while IFS= read -r candidate; do
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[ "$candidate" = "$target_tag" ] && continue
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if [ "$(printf '%s\n%s\n' "$candidate" "$target_tag" | sort -V | head -n 1)" = "$candidate" ]; then
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printf '%s\n' "$candidate"
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fi
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done < <(git tag --list 'v*' | grep -E '^v[0-9]+\.[0-9]+\.[0-9]+$' | sort -V)
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}
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resolve_comparison_tag() {
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local version=$1
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local base rc expected
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if [[ "$version" =~ ^([0-9]+\.[0-9]+\.[0-9]+)-rc\.([0-9]+)$ ]]; then
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base=${BASH_REMATCH[1]}
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rc=${BASH_REMATCH[2]}
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if (( rc > 1 )); then
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expected="v${base}-rc.$((rc - 1))"
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if ! git merge-base --is-ancestor "$expected" HEAD 2>/dev/null; then
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echo "Expected immediately preceding RC tag '$expected' is not an ancestor of HEAD" >&2
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return 1
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fi
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printf '%s\n' "$expected"
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return
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fi
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elif [[ ! "$version" =~ ^[0-9]+\.[0-9]+\.[0-9]+$ ]]; then
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echo "Unsupported release version '$version'; expected X.Y.Z or X.Y.Z-rc.N" >&2
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return 1
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fi
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latest_stable_before "${base:-$version}" | tail -n 1
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}
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EXPECTED_COMPARISON_TAG=$(resolve_comparison_tag "$VERSION")
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if [ -z "$EXPECTED_COMPARISON_TAG" ]; then
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echo "No valid comparison tag found for v${VERSION}" >&2
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exit 1
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fi
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if [ -n "$REQUESTED_COMPARISON_TAG" ] && [ "$REQUESTED_COMPARISON_TAG" != "$EXPECTED_COMPARISON_TAG" ]; then
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echo "Comparison tag '$REQUESTED_COMPARISON_TAG' violates the release-note range for v${VERSION}; expected '$EXPECTED_COMPARISON_TAG'" >&2
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exit 1
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fi
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PREVIOUS_TAG=$EXPECTED_COMPARISON_TAG
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if ! git rev-parse -q --verify "${PREVIOUS_TAG}^{commit}" >/dev/null; then
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echo "Comparison tag '${PREVIOUS_TAG}' does not exist" >&2
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exit 1
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fi
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if [ "$MODE" = "resolve-base" ]; then
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printf '%s\n' "$PREVIOUS_TAG"
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exit 0
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fi
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if [[ "$VERSION" == *-rc.* ]]; then
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RELEASE_RANGE_GUIDANCE="This RC covers ${PREVIOUS_TAG}..HEAD."
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else
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RELEASE_RANGE_GUIDANCE="This stable release covers ${PREVIOUS_TAG}..HEAD. The same-version RC packets under docs/releases/ are available evidence."
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fi
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echo "Generating release notes for v${VERSION} (changes since ${PREVIOUS_TAG})..." >&2
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read -r -d '' RESEARCH_PROMPT <<EOF || true
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Create a comprehensive factual account of the user-observable differences in
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Pulse between ${PREVIOUS_TAG} and the current HEAD.
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Pulse is a self-hosted monitoring dashboard for Proxmox VE, PBS, Docker, and
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Kubernetes, used mostly by homelab and small-ops users.
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${RELEASE_RANGE_GUIDANCE}
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Use the available read-only repository and GitHub tools as you judge useful.
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Take the time needed to understand the range and final source state. Return the
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account with supporting evidence in Markdown. It has no public length or item
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limit.
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EOF
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read -r -d '' NOTE_FORMAT <<EOF || true
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# Pulse v${VERSION} Release Notes
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[One short paragraph explaining the customer outcome of this release.]
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## What's improved
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- **[Short outcome]** - [Where users notice it and why it matters.]
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[Use a concise set of meaningful bullets. Each full bullet, including Markdown
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links, must be 260 characters or fewer. Use no semicolon or em dash characters.]
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## Before you upgrade
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[Only information users must act on or understand before upgrading. Omit this
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section when there is none.]
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EOF
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# Strip accidental markdown fences and anything before the release title.
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clean_notes() {
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sed -e 's/^```[a-z]*$//' -e 's/^```$//' | \
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awk -v title="# Pulse v${VERSION} Release Notes" '$0 == title {found=1} found{print}'
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}
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# Both engines must run on the logged-in subscription (Claude Max / OpenAI
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# plan), never on metered API keys. Stray env vars silently override
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# subscription auth — scrub them before invoking either CLI.
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scrub_env() {
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env -u ANTHROPIC_API_KEY -u ANTHROPIC_AUTH_TOKEN -u ANTHROPIC_BASE_URL \
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-u ANTHROPIC_PROFILE -u OPENAI_API_KEY "$@"
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}
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generate_with_claude() {
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local prompt=$1
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command -v claude >/dev/null || return 1
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echo "Engine: claude (model: ${RELEASE_NOTES_MODEL:-opus})" >&2
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scrub_env claude -p "$prompt" \
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--model "${RELEASE_NOTES_MODEL:-opus}" \
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--allowedTools \
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"Bash(git log:*)" "Bash(git diff:*)" "Bash(git show:*)" \
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"Bash(git describe:*)" "Bash(git tag:*)" "Bash(git rev-parse:*)" \
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"Bash(git rev-list:*)" "Bash(git merge-base:*)" \
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"Bash(git grep:*)" "Bash(git ls-tree:*)" "Bash(git blame:*)" \
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"Bash(git status:*)" \
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"Bash(gh issue view:*)" "Bash(gh pr view:*)" \
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"Read" "Grep" "Glob" \
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</dev/null
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}
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generate_with_codex() {
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local prompt=$1
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command -v codex >/dev/null || return 1
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echo "Engine: codex" >&2
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local out
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out=$(mktemp)
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# Session log goes to stderr; only the agent's final message is kept.
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if ! scrub_env codex exec --sandbox read-only -o "$out" "$prompt" >&2 </dev/null; then
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rm -f "$out"
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return 1
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fi
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cat "$out"
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rm -f "$out"
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}
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generate_notes() {
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local prompt=$1
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case "${RELEASE_NOTES_ENGINE:-claude}" in
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codex)
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generate_with_codex "$prompt" || {
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echo "Codex generation failed" >&2
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return 1
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}
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;;
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*)
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if ! generate_with_claude "$prompt"; then
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echo "Claude generation failed, trying Codex fallback..." >&2
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generate_with_codex "$prompt" || {
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echo "Both engines failed (need 'claude' or 'codex' CLI, logged in)" >&2
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return 1
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}
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fi
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;;
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esac
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}
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save_trace() {
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local name=$1
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local content=$2
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[ -n "${RELEASE_NOTES_TRACE_DIR:-}" ] || return 0
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mkdir -p "$RELEASE_NOTES_TRACE_DIR"
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printf '%s\n' "$content" > "$RELEASE_NOTES_TRACE_DIR/$name"
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}
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echo "Researching the complete release range..." >&2
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RESEARCH_BRIEF=$(generate_notes "$RESEARCH_PROMPT") || exit 1
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if [ -z "$RESEARCH_BRIEF" ]; then
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echo "Error: release research returned an empty brief" >&2
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exit 1
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fi
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save_trace research.md "$RESEARCH_BRIEF"
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read -r -d '' DRAFT_PROMPT <<EOF || true
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Write the most useful customer release notes for Pulse v${VERSION}.
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${RELEASE_RANGE_GUIDANCE}
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Use your judgment to select and explain what matters most to users. The
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read-only repository and GitHub tools are available as you judge useful.
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Use exactly this public shape:
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${NOTE_FORMAT}
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Reply only with the release-notes Markdown beginning exactly
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"# Pulse v${VERSION} Release Notes".
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EOF
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echo "Drafting an independent customer release story..." >&2
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RELEASE_NOTES=$(generate_notes "$DRAFT_PROMPT") || exit 1
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RELEASE_NOTES=$(printf '%s\n' "$RELEASE_NOTES" | clean_notes)
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if [ -z "$RELEASE_NOTES" ]; then
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echo "Error: release notes generation returned no canonical release title" >&2
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exit 1
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fi
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save_trace independent-draft.md "$RELEASE_NOTES"
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echo "Running an independent improvement pass..." >&2
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read -r -d '' REVIEW_PROMPT <<EOF || true
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Independently improve the Pulse v${VERSION} customer release notes below.
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The comparison range is ${PREVIOUS_TAG}..HEAD. Use the available read-only
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repository and GitHub tools as you judge useful, along with the internal brief.
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Decide whether the draft selected, weighted, and explained the changes in the
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way most useful to users, and make any changes you judge warranted.
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Use this public shape:
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${NOTE_FORMAT}
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Reply only with the complete corrected Markdown beginning exactly
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"# Pulse v${VERSION} Release Notes".
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Factual account from a separate investigation:
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${RESEARCH_BRIEF}
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Candidate release notes:
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${RELEASE_NOTES}
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EOF
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RELEASE_NOTES=$(generate_notes "$REVIEW_PROMPT") || exit 1
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RELEASE_NOTES=$(printf '%s\n' "$RELEASE_NOTES" | clean_notes)
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save_trace reviewed-notes.md "$RELEASE_NOTES"
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validate_notes() {
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printf '%s\n' "$1" | python3 scripts/release_control/render_release_body.py \
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--version "$VERSION" \
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--validate-notes-file /dev/stdin
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}
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if ! VALIDATION_ERROR=$(validate_notes "$RELEASE_NOTES" 2>&1); then
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echo "Generated notes failed release-body validation; requesting one constrained revision..." >&2
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echo "$VALIDATION_ERROR" >&2
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read -r -d '' REPAIR_PROMPT <<EOF || true
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Correct the Pulse v${VERSION} release notes below so they pass this exact
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validation error while preserving their meaning:
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${VALIDATION_ERROR}
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Requirements:
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- Output only Markdown beginning with # Pulse v${VERSION} Release Notes.
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- Preserve the factual meaning selected by the independent review.
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- Satisfy the reported format constraint.
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Release notes to repair:
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${RELEASE_NOTES}
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EOF
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RELEASE_NOTES=$(generate_notes "$REPAIR_PROMPT") || exit 1
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RELEASE_NOTES=$(printf '%s\n' "$RELEASE_NOTES" | clean_notes)
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if ! validate_notes "$RELEASE_NOTES"; then
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echo "Error: revised release notes still fail release-body validation" >&2
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exit 1
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fi
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fi
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# Notes to stdout only — callers capture this.
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printf '%s\n' "$RELEASE_NOTES"
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if [ "${SAVE_TO_FILE:-}" = "1" ]; then
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OUTPUT_FILE="release-notes-v${VERSION}.md"
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printf '%s\n' "$RELEASE_NOTES" > "$OUTPUT_FILE"
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echo "Saved to ${OUTPUT_FILE}" >&2
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fi
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