entrypoint.sh in outliner-0.2.0 vs entrypoint.sh in outliner-1.0.0

@@ -1,20 +1,78 @@
 #!/bin/sh
-
+set -eu
 if [ $# -eq 0 ]; then
-  echo "Please run with outliner [export|import] arguments"
+  echo "Please run with outliner [export|import|sync] arguments"
   exit
 fi
 
+setup_git() {
+  if [ -f "$HOME/.ssh/id_rsa" ]; then
+    # This is required because Kubernetes secret mounts can't
+    # have file permissions set
+    chmod 0400 "$HOME/.ssh/id_rsa"
+
+    if [ ! -d "$HOME/.ssh/id_rsa.pub" ]; then
+      ssh-keygen -y -f "$HOME/.ssh/id_rsa" > "$HOME/.ssh/id_rsa.pub"
+    fi
+    echo "[+] Using SSH key for git pushes"
+  else
+    echo "[E] Git credentials not available, quitting"
+    exit 1
+  fi
+
+  eval $(ssh-agent)
+  ssh-add "$HOME/.ssh/id_rsa"
+}
+
+update_git_config() {
+  EMAIL=${GIT_EMAIL:[e-mail]}
+  git config --global user.email "$EMAIL"
+  git config --global user.name "Outliner Backup"
+  git remote add origin "$GIT_REMOTE_URL"
+}
+
 case $1 in
   export)
     shift
-    bundle exec outliner-export $@
+    bundle exec outliner-export "$@"
     ;;
   import)
     shift
-    bundle exec outliner-import $@
-    break
+    bundle exec outliner-import "$@"
+    ;;
+  sync)
+    BRANCH=${GIT_BRANCH:-master}
+    old_git_dir=$(mktemp -d)
+    fresh_export_dir=$(mktemp -d)
+    if [ -z "$GIT_REMOTE_URL" ]; then
+      echo "[E] GIT_REMOTE_URL not set"
+      exit 1
+    else
+      git clone --branch "$BRANCH" "$GIT_REMOTE_URL" "$old_git_dir"
+      setup_git
+      update_git_config
+      echo "[+] Exporting data from Outline"
+      bundle exec outliner-export "$fresh_export_dir"
+      echo "[+] Resetting git repository"
+      cd "$old_git_dir"
+      # We update so that git forgets all files
+      git ls-files -z |xargs -n1 -0 git rm
+      # Then we copy across the files from the new export
+      cd "$fresh_export_dir"
+      echo "[+] Updating git repository"
+      rsync -av . "$old_git_dir"
+      cd "$old_git_dir"
+      echo "[+] Committing to git"
+      git add .
+      git commit --message "Backup: $(date)" > /dev/null
+      git status
+      echo "[+] Pushing to git remote"
+      git push origin "HEAD:$BRANCH"
+      echo "[+] Cleaning up"
+      rm -rf "$old_git_dir"
+      rm -rf "$fresh_export_dir"
+    fi
     ;;
   *)
     echo "Invalid command, please check README"
     ;;
 esac