+++ /dev/null
-# zshrc/60_vcsprompt
-#
-# Make git information available to the prompt
-#
-# Copyright © 1994–2017 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
-#
-
-__on_networkfs()
-{
- case $(df -T . | sed -rne '$s,^[^[:space:]]+[[:space:]]+([^[:space:]]+).*,\1,p') in
- (cifs|nfs) return 0;;
- esac
- return 1
-}
-
-__git_get_reporoot()
-{
- # return the full path to the root of the current git repository
- [ -d "$GIT_DIR" ] && echo "$GIT_DIR" && return 0
- local dir; dir="$PWD/$(git rev-parse --show-cdup)"
- # do not use --show-toplevel because it resolves symlinks
- echo $dir:a
-}
-
-__git_get_branch()
-{
- # return the name of the git branch we're on
- local ref gitdir
- gitdir="$(git rev-parse --git-dir)"
- ref=$(git --git-dir="$gitdir" symbolic-ref -q HEAD 2>/dev/null \
- || git --git-dir="$gitdir" name-rev --name-only HEAD 2>/dev/null) || return 1
- echo "${ref#refs/heads/}"
-}
-
-__git_print_preprompt()
-{
- [ "$(git config --get core.bare)" = false ] || return
- __on_networkfs && return
-
- local output
- output=(${(f):-"$(git diff --stat --relative 2>/dev/null)"})
- if [[ ${#output} -gt 1 ]]; then
- echo changes on filesystem:
- print "${${(F)output[1,-2]}//\.\.\./…}"
- fi
- output=(${(f):-"$(git diff --cached --stat --relative 2>/dev/null)"})
- if [[ ${#output} -gt 1 ]]; then
- echo cached/staged changes:
- print "${${(F)output[1,-2]}//\.\.\./…}"
- fi
-}
-
-__hg_get_reporoot()
-{
- hg root
-}
-
-__hg_get_branch()
-{
- echo "hg:$(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 ${dir}.git ] && echo git && break
- [ -d "$GIT_DIR" ] && 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 "${1:-}" ]; then
- pwdnamed="${(%):-%${_PROMPT_PATH_MAXLEN}<…<%~%<<}"
- echo "$pwdnamed"
- return
- fi
-
- local reporoot branch
- reporoot="${1%%/}"
- branch="$2"
-
- # replace named directories in the PWD, we need thi for the proper component
- # count later
- local pwdnamed
- pwdnamed="${(%):-%~}"
-
- # 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
- (( $postcomps > 0 )) && postfix="${(%):-%${postcomps}~}"
-
- # 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}<…<%-${precomps}~%<<}"
-
- echo "'$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="$(__git_get_branch)" ||
- { error "could not determine git branch"; return 1 }
- if [ -n "$VCSH_REPO_NAME" ]; then
- # if vcsh is used to get a subshell, then the repo root is the home
- # directory, but we want to indicate the vcsh context too:
- eval set -- $(__vcs_get_prompt_path_components "$HOME" "$branch")
- set -- "vcsh:$VCSH_REPO_NAME" "$2" "$3"
- else
- eval set -- $(__vcs_get_prompt_path_components "$reporoot" "$branch")
- if [ -d "$GIT_DIR" ]; then
- # poor man's replace until I find out how to do named dirs properly
- # here:
- local _D="${GIT_DIR/$HOME/~}"
- set -- "$_D" "$2" "${${1#$_D}%/}"
- fi
- fi
- ;;
- 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 }
- eval set -- $(__vcs_get_prompt_path_components "$reporoot" "$branch")
- ;;
- bzr)
- reporoot="$(__bzr_get_reporoot)" ||
- { error "could not determine bzr repository root"; return 1 }
- branch="$(__bzr_get_branch)" ||
- { error "could not determine bzr branch"; return 1 }
- eval set -- $(__vcs_get_prompt_path_components "$reporoot" "$branch")
- ;;
- *)
- case "$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
-
- psvar[1,3]=($1 $2 $3)
-}
-
-__vcs_print_preprompt()
-{
- local reporoot
- repotype="${1:-$(__vcs_get_repo_type)}"
-
- case "$repotype" in
- git)
- __git_print_preprompt
- ;;
- esac
-}
-
-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
-
- _print_preprompt() {
- [[ $? -eq 0 ]] && __vcs_print_preprompt
- }
- precmd_functions+=_print_preprompt
-
- # call it once
- _update_vcs_prompt_vars
-fi
-
-# vim:ft=zsh
projects / etc / zsh.git / blobdiff
