Change peco history script into custom oh-my-zsh plugin

shell/zsh/custom/plugins/peco-history/peco-history.plugin.zsh

@@ -0,0 +1,19 @@
+# History search with peco
+#
+# Search shell history with peco: https://github.com/peco/peco
+# Adapted from: https://github.com/mooz/percol#zsh-history-search
+if which peco &> /dev/null; then
+  function peco_select_history() {
+    local tac
+    (which gtac &> /dev/null && tac="gtac") || \
+      (which tac &> /dev/null && tac="tac") || \
+      tac="tail -r"
+    BUFFER=$(fc -l -n 1 | eval $tac | \
+                peco --layout=bottom-up --query "$LBUFFER")
+    CURSOR=$#BUFFER # move cursor
+    zle -R -c       # refresh
+  }
+
+  zle -N peco_select_history
+  bindkey '^R' peco_select_history
+fi

shell/zshrc.sh

@@ -34,8 +34,23 @@ DISABLE_AUTO_TITLE="true"
 
 # Which plugins would you like to load? (plugins can be found in ~/.oh-my-zsh/plugins/*)
 # Example format: plugins=(rails git textmate ruby lighthouse)
-plugins=(brew bundler cake cap gem heroku node nyan osx powder python ruby \
-  thor vagrant)
+plugins=( \
+  brew \
+  bundler \
+  cake \
+  cap \
+  gem \
+  heroku \
+  node \
+  nyan \
+  osx \
+  peco-history \
+  powder \
+  python \
+  ruby \
+  thor \
+  vagrant \
+)
 
 source "$ZSH/oh-my-zsh.sh"
 
@@ -85,25 +100,3 @@ zle -N zle-line-init
 # use ctrl+t to toggle autosuggestions(hopefully this wont be needed as
 # zsh-autosuggestions is designed to be unobtrusive)
 bindkey '^T' autosuggest-toggle
-
-
-#
-# History search with peco
-#
-
-# Search shell history with peco: https://github.com/peco/peco
-# Adapted from: https://github.com/mooz/percol#zsh-history-search
-if which peco &> /dev/null; then
-  function percol_select_history() {
-    local tac
-    (which gtac &> /dev/null && tac="gtac") || \
-      (which tac &> /dev/null && tac="tac") || \
-      tac="tail -r"
-    BUFFER=$(fc -l -n 1 | eval $tac | peco --query "$LBUFFER")
-    CURSOR=$#BUFFER # move cursor
-    zle -R -c       # refresh
-  }
-
-  zle -N percol_select_history
-  bindkey '^R' percol_select_history
-fi