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its-mash merged 1 commit into from
Jun 15, 2026
Merged

ci: stable-style changelog notes for pre-releases #162

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27 changes: 25 additions & 2 deletions .github/workflows/release.yml
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Original file line number Diff line number Diff line change
Expand Up @@ -147,12 +147,35 @@ jobs:
GH_TOKEN: ${{ github.token }}
run: |
set -euo pipefail
TAG="v${{ steps.compute.outputs.version }}"
VERSION="${{ steps.compute.outputs.version }}"
TAG="v${VERSION}"
BASE="${VERSION%-*}" # strip the -<run_number> pre-release identifier
BOT_BRANCH="release-please--branches--main--components--mcpmux"

# Build release notes that mirror the stable changelog: pull the
# pending version's section straight from release-please's CHANGELOG
# on its release-PR branch (grouped Features / Bug Fixes / etc.), so
# the pre-release previews exactly what stable v$BASE will ship.
# Assembled into a file with printf to keep markdown intact (no YAML
# block-scalar indentation leaking into the body).
NOTE="Automated pre-release of v${BASE}, built from main (${{ github.sha }}). Early build — may be unstable; switch to the Stable channel in Settings → Software Updates for published releases."
printf '%s\n' "$NOTE" > body.md
if CL=$(gh api "repos/${{ github.repository }}/contents/CHANGELOG.md?ref=${BOT_BRANCH}" --jq '.content' 2>/dev/null); then
# Extract the top (pending) version section: from the first "## "
# header up to, but not including, the next one.
SECTION=$(printf '%s' "$CL" | base64 -d | awk '/^## /{c++} c==2{exit} c>=1{print}')
if [ -n "$SECTION" ]; then
# The section carries release-please's own "## [version] (date)"
# header + grouped Features/Bug Fixes — same as the stable notes.
printf '\n%s\n' "$SECTION" >> body.md
fi
fi

RELEASE_ID=$(gh api --method POST "repos/${{ github.repository }}/releases" \
-f tag_name="$TAG" \
-f target_commitish="${{ github.sha }}" \
-f name="McpMux $TAG" \
-f body="Automated pre-release built from main (${{ github.sha }}). Early build — may be unstable. Use the Stable channel in Settings → Software Updates for published releases." \
-f body="$(cat body.md)" \
-F draft=true -F prerelease=true \
--jq '.id')
echo "release_id=$RELEASE_ID" >> "$GITHUB_OUTPUT"
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