🔧 Try auto-deploy with CircleCI

circle.yml

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+checkout:
+  post:
+    - git submodule sync
+    - git submodule update --init --recursive
+
+machine:
+  timezone: Asia/Tokyo
+
+dependencies:
+  pre:
+    - go get -v github.com/spf13/hugo
+
+test:
+  override:
+    - "true"
+
+deployment:
+  production:
+    branch: master
+    commands:
+    - ./scripts/push-to-gh-pages.sh

scripts/push-to-gh-pages.sh

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+#!/bin/bash -eux
+
+if [ -z "${GIT_USER_NAME}" ]; then
+  echo "Please set an env var GIT_USER_NAME"
+  exit 1
+fi
+
+if [ -z "${GIT_USER_EMAIL}" ]; then
+  echo "Please set an env var GIT_USER_EMAIL"
+  exit 1
+fi
+
+GIT_REPO="git@github.com:${CIRCLE_PROJECT_USERNAME}/${CIRCLE_PROJECT_REPONAME}.git"
+
+git submodule init
+git submodule update
+
+remote=`git ls-remote --heads 2> /dev/null | grep gh-pages || true`
+
+if [ -n "$remote" ]; then
+  git clone -b gh-pages "${GIT_REPO}" public
+  rm -rf public/*
+else
+  git init public
+  cd public
+  git checkout -b gh-pages
+  git remote add origin "${GIT_REPO}"
+  cd ..
+fi
+
+hugo
+cd public
+git config --global user.name "${GIT_USER_NAME}"
+git config --global user.email "${GIT_USER_EMAIL}"
+git add --all
+git commit -m '[ci skip]'
+git push -f origin gh-pages