Add oh-my-zsh plugin to manage jekyll posts.

dotfiles/zsh_custom/plugins/jekyll/jekyll.plugin.zsh

@@ -0,0 +1,95 @@
+JEKYLL_DIR=${JEKYLL_DIR:-${HOME}/Projects/blog}
+
+function _jekyll_set_date {
+  local FILENAME
+  local DATE
+  FILENAME=${1}
+  DATE=${2}
+  sed -i "2,/---/{s/^date:.*$/date: ${DATE}/;s/---/date: ${DATE}\n---/}" ${FILENAME}
+}
+
+function _jekyll_find_post {
+  local files
+  local fname
+  if [ -f "${1}" ] ; then
+    printf "${1}"
+    return 0
+  fi
+  fname=${2:-${1}}
+  files=(${JEKYLL_DIR}/_posts/*${fname}* ${JEKYLL_DIR}/_drafts/*${fname}*)
+  if [ ${#files} -eq "0" ] ; then
+    echo "No post found for ${fname}" >&2
+    return 1
+  fi
+  if [ ${#files} -gt "1" ] ; then
+    echo "Ambiguous results: ${files}" >&2
+    return 1
+  fi
+  printf ${files}
+  return 0
+}
+
+function jekyll {
+  setopt localoptions nullglob
+  local JTEMPLATE
+  local TITLE
+  local SLUG
+  local FILENAME
+  local DATE
+  local NEWNAME
+
+  JTEMPLATE="---\n"
+  JTEMPLATE+="layout: post\n"
+  JTEMPLATE+="title: %s\n"
+  JTEMPLATE+="category: Blog\n"
+  JTEMPLATE+="---\n"
+  TITLE=${@[2,-1]}
+  SLUG=$(echo -n ${TITLE}|tr A-Z a-z|tr -c -s -- a-z -)
+  DATE=`date +%Y-%m-%d`
+
+  case "${1:-help}" in
+    help|--help)
+      command jekyll help
+      echo "Added by oh-my-zsh plugin:"
+      echo "  draft                 Create a new draft post."
+      echo "  post                  Create a new post to publish immediately."
+      echo "  publish               Publish a draft post by name."
+      echo "  edit                  Edit a post."
+      ;;
+    draft)
+      mkdir -p "${JEKYLL_DIR}/_drafts"
+      FILENAME="${JEKYLL_DIR}/_drafts/${SLUG}.md"
+      printf "${JTEMPLATE}" "${TITLE}" > "${FILENAME}"
+      vim "${FILENAME}" '+$'
+      ;;
+    post)
+      FILENAME="${JEKYLL_DIR}/_posts/${DATE}-${SLUG}.md"
+      printf "${JTEMPLATE}" "${TITLE}" > "${FILENAME}"
+      _jekyll_set_date "${FILENAME}" "${DATE}"
+      vim "${FILENAME}" '+$'
+      ;;
+    publish)
+      FILENAME=$(_jekyll_find_post "${TITLE}" "${SLUG}")
+      if [ $? -ne 0 ] ; then
+        return
+      fi
+      if ! [[ "${FILENAME}" =~ '/_drafts/' ]] ; then
+        echo "${FILENAME} is not a draft." >&2
+        return
+      fi
+      NEWNAME=$(echo "${FILENAME}" | sed "s/_drafts\//_posts\/${DATE}-/")
+      mv "${FILENAME}" "${NEWNAME}"
+      _jekyll_set_date "${NEWNAME}" "${DATE}"
+      ;;
+    edit)
+      FILENAME=$(_jekyll_find_post "${TITLE}" "${SLUG}")
+      if [ $? -ne 0 ] ; then
+        return
+      fi
+      vim "${FILENAME}" '+$'
+      ;;
+    *)
+      command jekyll "$@"
+      ;;
+  esac
+}