+++ /dev/null
-# zshrc/85_git_prompt
-#
-# Make git information available to the prompt
-#
-# Copyright © 1994–2008 martin f. krafft <madduck@madduck.net>
-# Released under the terms of the Artistic Licence 2.0
-#
-# Source repository: http://git.madduck.net/v/etc/zsh.git
-#
-# Shamelessly based on http://glandium.org/blog/?p=170
-#
-
-__git_get_reporoot()
-{
- # return the full path to the root of the current git repository
- local relroot
- relroot="$(git rev-parse --show-cdup 2>/dev/null)" || return 1
- if [ -n "$relroot" ]; then
- readlink -f "$relroot"
- else
- echo $PWD
- fi
-}
-
-__git_get_branch()
-{
- # return the name of the git branch we're on
- local ref
- ref=$(git symbolic-ref -q HEAD 2>/dev/null \
- || git-name-rev --name-only HEAD 2>/dev/null) || return 1
- echo "${ref#refs/heads/}"
-}
-
-__hg_get_reporoot()
-{
- hg root
-}
-
-__hg_get_branch()
-{
- echo "hg:$(hg branch)"
-}
-
-__bzr_get_reporoot()
-{
- local reporoot
- reporoot="$(bzr info | sed -rne 's, *branch root: ,,p')"
- case "$reporoot" in
- .) echo "$PWD";;
- *) echo "$reporoot";;
- esac
-}
-
-__bzr_get_branch()
-{
- local branch revno
- bzr version-info | while read i j; do
- case "$i" in
- revno:) revno="$j";;
- branch-nick:) branch="$j";;
- esac
- done
- echo "bzr:${branch}@$revno"
-}
-
-__vcs_get_repo_type()
-{
- # return the type of the closest repository in the path hierarchy
- local dir
- while true; do
- [ -d ${dir}.git ] && echo git && break
- [ -d ${dir}.bzr ] && echo bzr && break
- [ -d ${dir}.hg ] && echo hg && break
- [ "$(readlink -f ${dir:-.})" = / ] && echo NONE && break
- dir="../$dir"
- done
-}
-
-__vcs_get_prompt_path_components()
-{
- # return formatted path components (prefix branch postfix) given
- # the repository root and the branch.
-
- # shortcut: if there are no arguments, return a default prompt
- if [ -z "${1:-}" ]; then
- pwdnamed="%${_PROMPT_PATH_MAXLEN}<..<%~%<<"
- pwdnamed="${(%)pwdnamed}"
- echo "$pwdnamed"
- return
- fi
-
- local reporoot branch
- reporoot="${1%%/}"
- branch="$2"
-
- # replace named directories in the PWD, we need thi for the proper component
- # count later
- local pwdnamed="%~"
- pwdnamed="${(%)pwdnamed}"
-
- # store paths in arrays for component count calculation
- typeset -la apwd apwdnamed areporoot
- apwd=(${(s:/:)PWD})
- apwdnamed=(${(s:/:)pwdnamed})
- areporoot=(${(s:/:)reporoot})
-
- # get the number of leading and trailing path components. Since we're using
- # %~ later and then /home/madduck suddenly becomes ~, which is 1, not
- # 2 components, we calculate the leading component count by using the named
- # path and the number of post components
- local precomps postcomps
- postcomps=$(($#apwd - $#areporoot))
- precomps=$(($#apwdnamed - $postcomps))
-
- local postfix
- if (( $postcomps > 0 )); then
- postfix="%${postcomps}~"
- postfix="${(%)postfix}"
- fi
-
- # we don't want the prompt to get too long, so keep the total prompt length
- # under $_PROMPT_PATH_MAXLEN (25), but ensure that the prefix is not shorter
- # than $_PROMPT_PATH_MINLEN (10), no matter what
- local prelen minlen prefix
- prelen=$((${_PROMPT_PATH_MAXLEN:-25} - $#branch - $#postfix))
- minlen=${_PROMPT_PATH_MINLEN:-10}
- (( $prelen < $minlen )) && prelen=$minlen
- prefix="%${prelen}<..<%-${precomps}~%<<"
- prefix="${(%)prefix}"
-
- echo "$prefix" "$branch" "$postfix"
-}
-
-__vcs_set_prompt_variables()
-{
- # set psvar[1..3] depending on repo type, or just psvar[1] if no repo found
- local reporoot branch repotype
- repotype="${1:-$(__vcs_get_repo_type)}"
-
- case "$repotype" in
- git)
- reporoot="$(__git_get_reporoot)" ||
- { error "could not determine git repository root"; return 1 }
- branch="$(__git_get_branch)" ||
- { error "could not determine git branch"; return 1 }
- ;;
- hg)
- reporoot="$(__hg_get_reporoot)" ||
- { error "could not determine hg repository root"; return 1 }
- branch="$(__hg_get_branch)" ||
- { error "could not determine hg branch"; return 1 }
- ;;
- bzr)
- reporoot="$(__bzr_get_reporoot)" ||
- { error "could not determine bzr repository root"; return 1 }
- branch="$(__bzr_get_branch)" ||
- { error "could not determine bzr branch"; return 1 }
- ;;
- *)
- case "$repotype" in
- NONE) :;;
- *) warn "$repotype repositories not (yet) supported in the prompt";;
- esac
- local p="%${MAXLEN}<..<%~%<<"
- #TODO find a better way so we don't have to nuke $psvar, but since the
- # %(nv.true.false) check for prompts checks element count, not
- # content, that's all we get for now
- psvar=("${(%)p}")
- return
- esac
-
- set -- $(__vcs_get_prompt_path_components "$reporoot" "$branch")
- psvar[1]="$1"
- psvar[2]="$2"
- psvar[3]="$3"
-}
-
-if ! is_root; then
- # too dangerous to be run as root
-
- _update_vcs_prompt_vars_if_vcs_ran() {
- local vcs="$(__vcs_get_repo_type)"
- case "$(history $(($HISTCMD - 1)))" in
- # $vcs appeared in last command, so be sure to update
- *${vcs}*) __vcs_set_prompt_variables "$vcs"
- esac
- }
- precmd_functions+=_update_vcs_prompt_vars_if_vcs_ran
-
- _update_vcs_prompt_vars() {
- __vcs_set_prompt_variables
- }
- chpwd_functions+=_update_vcs_prompt_vars
-
- # call it once
- _update_vcs_prompt_vars
-fi
-
-# vim:ft=zsh
projects / etc / zsh.git / blobdiff