Boot deploy to gh-pages

build.boot

(deftask gh-pages
 "Build for production deployment."
 []
 (comp
  (hoplon)
  (cljs :optimizations :advanced)
  (target :dir #{"gh-pages"})))

circle.yml

# https://github.com/boot-clj/boot/wiki/Running-Boot-on-CI-systems
general:
  artifacts:
    - "/tmp"

machine:
  java:
    version: oraclejdk8

  environment:
    BOOT_JVM_OPTIONS: -Xmx3g -client -XX:+TieredCompilation -XX:TieredStopAtLevel=1 -XX:+UseConcMarkSweepGC -XX:+CMSClassUnloadingEnabled -Xverify:none

  pre:
    - sudo sysctl fs.inotify.max_user_watches=524288

dependencies:
  pre:
    - curl -L https://github.com/boot-clj/boot-bin/releases/download/2.5.2/boot.sh -o ~/bin/boot
    - chmod +x ~/bin/boot
  override:
    # smoke test the gh-pages task before trying to deploy
    - boot gh-pages
  cache_directories:
    - "~/bin"
    - "~/.m2"
    - "~/.boot/cache/bin"
    - "~/.boot/cache/lib"

test:
  override:
    # Nothing to run here
    - echo 1

deployment:
  # push snapshots of master through to github
  github:
    branch: master
    commands:
      - git config --global user.email "<YOUR_EMAIL_HERE>"
      - git config --global user.name "Circle CI"
      - . deploy.sh

deploy.sh

#!/bin/sh
echo "checking out master...";
git checkout master;

echo "fetching from git...";
git fetch;

echo "building gh-pages directory...";
boot gh-pages;

echo "committing gh-pages directory to git..."
git add .;
git commit -am "Deploy to github pages";

echo "deploying to remote gh-pages branch..."
# git subtree push --prefix gh-pages origin gh-pages;
# https://stackoverflow.com/questions/13756055/git-subtree-subtree-up-to-date-but-cant-push/30715198#30715198
git push origin `git subtree split --prefix gh-pages master`:gh-pages --force;

# Keep origin/master up to date as well
echo "pushing to master..."
git push;