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diff --git a/oh-my-zsh/themes/half-life.zsh-theme b/oh-my-zsh/themes/half-life.zsh-theme
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+# prompt style and colors based on Steve Losh's Prose theme:
+# https://github.com/sjl/oh-my-zsh/blob/master/themes/prose.zsh-theme
+#
+# vcs_info modifications from Bart Trojanowski's zsh prompt:
+# http://www.jukie.net/bart/blog/pimping-out-zsh-prompt
+#
+# git untracked files modification from Brian Carper:
+# https://briancarper.net/blog/570/git-info-in-your-zsh-prompt
+
+#use extended color palette if available
+if [[ $TERM = (*256color|*rxvt*) ]]; then
+  turquoise="%{${(%):-"%F{81}"}%}"
+  orange="%{${(%):-"%F{166}"}%}"
+  purple="%{${(%):-"%F{135}"}%}"
+  hotpink="%{${(%):-"%F{161}"}%}"
+  limegreen="%{${(%):-"%F{118}"}%}"
+else
+  turquoise="%{${(%):-"%F{cyan}"}%}"
+  orange="%{${(%):-"%F{yellow}"}%}"
+  purple="%{${(%):-"%F{magenta}"}%}"
+  hotpink="%{${(%):-"%F{red}"}%}"
+  limegreen="%{${(%):-"%F{green}"}%}"
+fi
+
+autoload -Uz vcs_info
+# enable VCS systems you use
+zstyle ':vcs_info:*' enable git svn
+
+# check-for-changes can be really slow.
+# you should disable it, if you work with large repositories
+zstyle ':vcs_info:*:prompt:*' check-for-changes true
+
+# set formats
+# %b - branchname
+# %u - unstagedstr (see below)
+# %c - stagedstr (see below)
+# %a - action (e.g. rebase-i)
+# %R - repository path
+# %S - path in the repository
+PR_RST="%{${reset_color}%}"
+FMT_BRANCH=" on ${turquoise}%b%u%c${PR_RST}"
+FMT_ACTION=" performing a ${limegreen}%a${PR_RST}"
+FMT_UNSTAGED="${orange} ●"
+FMT_STAGED="${limegreen} ●"
+
+zstyle ':vcs_info:*:prompt:*' unstagedstr   "${FMT_UNSTAGED}"
+zstyle ':vcs_info:*:prompt:*' stagedstr     "${FMT_STAGED}"
+zstyle ':vcs_info:*:prompt:*' actionformats "${FMT_BRANCH}${FMT_ACTION}"
+zstyle ':vcs_info:*:prompt:*' formats       "${FMT_BRANCH}"
+zstyle ':vcs_info:*:prompt:*' nvcsformats   ""
+
+
+function steeef_chpwd {
+  PR_GIT_UPDATE=1
+}
+
+function steeef_preexec {
+  case "$2" in
+  *git*|*svn*) PR_GIT_UPDATE=1 ;;
+  esac
+}
+
+function steeef_precmd {
+  (( PR_GIT_UPDATE )) || return
+
+  # check for untracked files or updated submodules, since vcs_info doesn't
+  if [[ -n "$(git ls-files --other --exclude-standard 2>/dev/null)" ]]; then
+    PR_GIT_UPDATE=1
+    FMT_BRANCH="${PM_RST} on ${turquoise}%b%u%c${hotpink} ●${PR_RST}"
+  else
+    FMT_BRANCH="${PM_RST} on ${turquoise}%b%u%c${PR_RST}"
+  fi
+  zstyle ':vcs_info:*:prompt:*' formats       "${FMT_BRANCH}"
+
+  vcs_info 'prompt'
+  PR_GIT_UPDATE=
+}
+
+# vcs_info running hooks
+PR_GIT_UPDATE=1
+
+autoload -U add-zsh-hook
+add-zsh-hook chpwd steeef_chpwd
+add-zsh-hook precmd steeef_precmd
+add-zsh-hook preexec steeef_preexec
+
+# ruby prompt settings
+ZSH_THEME_RUBY_PROMPT_PREFIX="with%F{red} "
+ZSH_THEME_RUBY_PROMPT_SUFFIX="%{$reset_color%}"
+ZSH_THEME_RVM_PROMPT_OPTIONS="v g"
+
+setopt prompt_subst
+PROMPT="${purple}%n%{$reset_color%} in ${limegreen}%~%{$reset_color%}\$(ruby_prompt_info)\$vcs_info_msg_0_${orange} λ%{$reset_color%} "