publish-book.sh

#!/usr/bin/env bash
set -e

cd "$(dirname "$0")/.."
BOOK="book"

source ci/rust-version.sh stable
eval "$(ci/channel-info.sh)"

if [[ -n $PUBLISH_BOOK_TAG ]]; then
  CURRENT_TAG="$(git describe --tags)"
  COMMIT_TO_PUBLISH="$(git rev-list -n 1 "${PUBLISH_BOOK_TAG}")"

  # book is manually published at a specified release tag
  if [[ $PUBLISH_BOOK_TAG != "$CURRENT_TAG" ]]; then
    (
      cat <<EOF
steps:
  - trigger: "$BUILDKITE_PIPELINE_SLUG"
    async: true
    build:
      message: "$BUILDKITE_MESSAGE"
      commit: "$COMMIT_TO_PUBLISH"
      env:
        PUBLISH_BOOK_TAG: "$PUBLISH_BOOK_TAG"
EOF
    ) | buildkite-agent pipeline upload
    exit 0
  fi
  repo=git@github.com:solana-labs/book.git
else
  # book-edge and book-beta are published automatically on the tip of the branch
  case $CHANNEL in
  edge)
    repo=git@github.com:solana-labs/book-edge.git
    ;;
  beta)
    repo=git@github.com:solana-labs/book-beta.git
    ;;
  *)
   echo "--- publish skipped"
   exit 0
   ;;
  esac
  BOOK=$CHANNEL
fi

ci/docker-run.sh "$rust_stable_docker_image" bash -exc "book/build.sh"

echo --- create book repo
(
  set -x
  cd book/html/
  git init .
  git config user.email "maintainers@solana.com"
  git config user.name "$(basename "$0")"
  git add ./* ./.nojekyll
  git commit -m "${CI_COMMIT:-local}"
)

echo "--- publish $BOOK"
cd book/html/
git remote add origin $repo
git fetch origin master
if ! git diff HEAD origin/master --quiet; then
  git push -f origin HEAD:master
else
  echo "Content unchanged, publish skipped"
fi

exit 0