Add deployment process

[benjaminoakes]

Goal: Ensure static content becomes available at https://rubysoftwareconservancy.github.io

Output goes to: https://github.com/rubysoftwareconservancy/rubysoftwareconservancy.github.io

Note: rubysoftwareconservancy.github.io may not have the same teams assigned as conservancy-site. It may be nice to have a deployment bot be the only user who can write to it.

Note: @benjaminoakes just created an empty repository. Other steps likely need to be taken.

From a previous spike:

• Run Rails
• Mirror the static content
• Push that to GitHub Pages

# Usage: sh deploy.sh
# Purpose: Deploy static content to an unrelated public GitHub Pages repository
#
# Based on https://nanoc.app/doc/deploying/

# Configuration
local_server='http://localhost:3000'
mirror_directory='localhost:3000'
output_branch='gh-pages'
output_repository='git@github.com:rubysoftwareconservancy/rubysoftwareconservancy.github.io.git'
output_domain='rubysoftwareconservancy.github.io'

echo "Deployment started at $(date -Iseconds)"

if [ $(git branch --show-current) != 'main' ]; then
  >&2 echo 'Not on "main" branch'
  exit 1
else
  echo 'On "main" branch'
fi

if [ -z "$(git status --porcelain)" ]; then
  echo 'Working directory clean'
else
  >&2 echo 'Uncommitted changes'
  exit 2
fi

git push
rm -rf build
rm -f mirror.log

if curl --silent "$local_server/up"; then
  echo
  echo "Server up: $local_server/up"
else
  >&2 echo "Server down: $local_server/up"
  exit 3
fi

wget --output-file mirror.log --mirror "$local_server"

if grep --quiet ERROR mirror.log; then
  >&2 echo "Errors during mirroring.  See mirror.log for details."
  exit 4
fi

mv "$mirror_directory" build
cd build
git init .
git checkout --orphan "$output_branch"
echo "$output_domain" > CNAME
cat <<EOF > README.md
This is our deployed, static website.  To see it in action, please visit [$output_domain](https://$output_domain).
EOF
git add .
git commit -m 'Deploy'
git remote add deploy "$output_repository"
git push --force deploy "$output_branch"

cd -
echo "Deployment finished at $(date -Iseconds)"