Add bira-squared theme

Signed-off-by: Bryan Stone <bstone@datapipe.com>

themes/bira-squared.zsh-theme

@@ -0,0 +1,129 @@
+# ZSH Theme - Preview: http://gyazo.com/8becc8a7ed5ab54a0262a470555c3eed.png
+local return_code="%(?..%{$fg[red]%}%? ↵%{$reset_color%})"
+
+if [[ $UID -eq 0 ]]; then
+    local user_host='%{$terminfo[bold]$fg[red]%}%n%{$fg_bold[yellow]%}@%m%{$reset_color%}'
+else
+    local user_host='%{$terminfo[bold]$fg[green]%}%n%{$fg_bold[yellow]%}@%m%{$reset_color%}'
+fi
+
+local current_dir='%{$terminfo[bold]$fg[blue]%} %~%{$reset_color%}'
+
+ZSH_THEME_GIT_PROMPT_PREFIX="[%{$fg_bold[green]%}±%{$reset_color%}%{$fg_bold[white]%}"
+ZSH_THEME_GIT_PROMPT_SUFFIX="%{$reset_color%}]"
+ZSH_THEME_GIT_PROMPT_CLEAN="%{$fg_bold[green]%}✓%{$reset_color%}"
+ZSH_THEME_GIT_PROMPT_AHEAD="%{$fg[cyan]%}▴%{$reset_color%}"
+ZSH_THEME_GIT_PROMPT_BEHIND="%{$fg[magenta]%}▾%{$reset_color%}"
+ZSH_THEME_GIT_PROMPT_STAGED="%{$fg_bold[green]%}●%{$reset_color%}"
+ZSH_THEME_GIT_PROMPT_UNSTAGED="%{$fg_bold[yellow]%}●%{$reset_color%}"
+ZSH_THEME_GIT_PROMPT_UNTRACKED="%{$fg_bold[red]%}●%{$reset_color%}"
+
+custom_rvm_ruby () {
+  if which rvm-prompt &> /dev/null; then
+    _rvm_ver="$(rvm-prompt i v)"
+    if [ -n "$_rvm_ver" ]; then
+      _rvm_ruby='%{$fg[red]%}‹$(rvm-prompt i v)$fg[magenta]%}$(rvm-prompt g)%{$fg[red]%}›%{$reset_color%} '
+    fi
+  else
+    if which rbenv &> /dev/null; then
+      _rvm_ver='$(rbenv version | sed -e "s/ (set.*$//")'
+      if [[ "${_rvm_ver}x" != "x" ]]; then
+        _rvm_ruby='%{$fg[red]%}‹$_rvm_ver›%{$reset_color%} '
+      fi
+    fi
+  fi
+  echo "${_rvm_ruby}"
+}
+
+custom_git_branch () {
+  ref=$(command git symbolic-ref HEAD 2> /dev/null) || \
+  ref=$(command git rev-parse --short HEAD 2> /dev/null) || return
+  echo "${ref#refs/heads/}"
+}
+
+custom_git_status() {
+  _STATUS=""
+
+  # check status of files
+  _INDEX=$(command git status --porcelain 2> /dev/null)
+  if [[ -n "$_INDEX" ]]; then
+    if $(echo "$_INDEX" | command grep -q '^[AMRD]. '); then
+      _STATUS="$_STATUS$ZSH_THEME_GIT_PROMPT_STAGED"
+    fi
+    if $(echo "$_INDEX" | command grep -q '^.[MTD] '); then
+      _STATUS="$_STATUS$ZSH_THEME_GIT_PROMPT_UNSTAGED"
+    fi
+    if $(echo "$_INDEX" | command grep -q -E '^\?\? '); then
+      _STATUS="$_STATUS$ZSH_THEME_GIT_PROMPT_UNTRACKED"
+    fi
+    if $(echo "$_INDEX" | command grep -q '^UU '); then
+      _STATUS="$_STATUS$ZSH_THEME_GIT_PROMPT_UNMERGED"
+    fi
+  else
+    _STATUS="$_STATUS$ZSH_THEME_GIT_PROMPT_CLEAN"
+  fi
+
+  # check status of local repository
+  _INDEX=$(command git status --porcelain -b 2> /dev/null)
+  if $(echo "$_INDEX" | command grep -q '^## .*ahead'); then
+    _STATUS="$_STATUS$ZSH_THEME_GIT_PROMPT_AHEAD"
+  fi
+  if $(echo "$_INDEX" | command grep -q '^## .*behind'); then
+    _STATUS="$_STATUS$ZSH_THEME_GIT_PROMPT_BEHIND"
+  fi
+  if $(echo "$_INDEX" | command grep -q '^## .*diverged'); then
+    _STATUS="$_STATUS$ZSH_THEME_GIT_PROMPT_DIVERGED"
+  fi
+
+  if $(command git rev-parse --verify refs/stash &> /dev/null); then
+    _STATUS="$_STATUS$ZSH_THEME_GIT_PROMPT_STASHED"
+  fi
+
+  echo $_STATUS
+}
+
+custom_git_prompt () {
+  local _branch=$(custom_git_branch)
+  local _status=$(custom_git_status)
+  local _result=""
+  if [[ "${_branch}x" != "x" ]]; then
+    _result="$ZSH_THEME_GIT_PROMPT_PREFIX$_branch"
+    if [[ "${_status}x" != "x" ]]; then
+      _result="$_result $_status"
+    fi
+    _result="$_result$ZSH_THEME_GIT_PROMPT_SUFFIX"
+  fi
+  echo $_result
+}
+
+get_space () {
+  local STR=$1$2
+  local zero='%([BSUbfksu]|([FB]|){*})'
+  local LENGTH=${#${(S%%)STR//$~zero/}}
+  local SPACES=""
+  (( LENGTH = ${COLUMNS} - $LENGTH - 1))
+
+  for i in {0..$LENGTH}
+    do
+      SPACES="$SPACES "
+    done
+
+  echo $SPACES
+}
+
+_1LEFT="╭─${user_host} ${current_dir}"
+
+custom_precmd () {
+  _1RIGHT="%{$fg[$NCOLOR]%}%p $(custom_rvm_ruby)$(custom_git_prompt)%{$reset_color%}"
+  _1SPACES=`get_space $_1LEFT $_1RIGHT`
+  print
+  print -rP "$_1LEFT$_1SPACES$_1RIGHT"
+}
+
+setopt prompt_subst
+PROMPT="╰─%{$fg[yellow]%}⚡%{$reset_color%} "
+PS2="  %{$fg[yellow]%}⚡%{$reset_color%} "
+RPROMPT='${return_code}'
+
+autoload -U add-zsh-hook
+add-zsh-hook precmd custom_precmd