- # it's also displayed (red).
- zstyle ':vcs_info:*' formats \
- "($green%b$default:$blue%s$default)"
- zstyle ':vcs_info:*' actionformats \
- "($green%b$default/$red%a$default:$blue%s$default)"
- # Call VCS_info as precmd before every prompt.
- prompt_precmd() {
- vcs_info
+ # it's also displayed (red). Also display if there are unstaged or staged
+ # (%u/%c) changes.
+ if [[ $ZSH_VERSION == (4.3.<11->|4.<4->*|<5->*) ||
+ -d ~/.zsh/functions/vcs_info ]]; then
+ zstyle ':vcs_info:*' formats \
+ "($green%b%u%c$default:$blue%s$default)"
+ zstyle ':vcs_info:*' actionformats \
+ "($green%b%u%c$default/$red%a$default:$blue%s$default)"
+ else
+ # In older versions %u and %c are not defined yet and are not
+ # correctly expanded.
+ zstyle ':vcs_info:*' formats \
+ "($green%b$default:$blue%s$default)"
+ zstyle ':vcs_info:*' actionformats \
+ "($green%b$default/$red%a$default:$blue%s$default)"
+ fi
+ # Set style for formats/actionformats when unstaged (%u) and staged (%c)
+ # changes are detected in the repository; check-for-changes must be set to
+ # true for this to work. Thanks to Bart Trojanowski
+ # (http://jukie.net/~bart/blog/pimping-out-zsh-prompt) for the idea
+ # (2010-03-11 00:20).
+ zstyle ':vcs_info:*' unstagedstr '¹'
+ zstyle ':vcs_info:*' stagedstr '²'
+
+ # Default to running vcs_info. If possible we prevent running it later for
+ # speed reasons. If set to a non empty value vcs_info is run.
+ FORCE_RUN_VCS_INFO=1
+
+ # Cache system inspired by Bart Trojanowski
+ # (http://jukie.net/~bart/blog/pimping-out-zsh-prompt).
+ #zstyle ':vcs_info:*+pre-get-data:*' hooks pre-get-data
+ +vi-pre-get-data() {
+ # Only Git and Mercurial support and need caching. Abort if any other
+ # VCS is used.
+ [[ "$vcs" != git && "$vcs" != hg ]] && return
+
+ # If the shell just started up or we changed directories (or for other
+ # custom reasons) we must run vcs_info.
+ if [[ -n $FORCE_RUN_VCS_INFO ]]; then
+ FORCE_RUN_VCS_INFO=
+ return
+ fi
+
+ # Don't run vcs_info by default to speed up the shell.
+ ret=1
+ # If a git/hg command was run then run vcs_info as the status might
+ # need to be updated.
+ case "$(fc -ln $(($HISTCMD-1)))" in
+ git* | g\ *)
+ ret=0
+ ;;
+ hg*)
+ ret=0
+ ;;
+ esac