#!/bin/bash

set -ex

echo "Removing the current docs for master"
rm -rf out/master/ || exit 0

echo "Making the docs for master"
mkdir out/master/
cp util/gh-pages/index.html out/master
python3 ./util/export.py out/master/lints.json

if [[ -n $TAG_NAME ]]; then
  echo "Save the doc for the current tag ($TAG_NAME) and point stable/ to it"
  cp -r out/master "out/$TAG_NAME"
  rm -f out/stable
  ln -s "$TAG_NAME" out/stable
fi

# Generate version index that is shown as root index page
cp util/gh-pages/versions.html out/index.html

echo "Making the versions.json file"
python3 ./util/versions.py out

cd out
# Now let's go have some fun with the cloned repo
git config user.name "GHA CI"
git config user.email "gha@ci.invalid"

if git diff --exit-code --quiet; then
  echo "No changes to the output on this push; exiting."
  exit 0
fi

git add .
git commit -m "Automatic deploy to GitHub Pages: ${SHA}"

git push "$SSH_REPO" "$TARGET_BRANCH"