All patches and comments are welcome. Please squash your changes to logical
commits before using git-format-patch and git-send-email to
patches@git.madduck.net.
If you'd read over the Git project's submission guidelines and adhered to them,
I'd be especially grateful.
3 # Make git information available to the prompt
5 # Copyright © 1994–2008 martin f. krafft <madduck@madduck.net>
6 # Released under the terms of the Artistic Licence 2.0
8 # Source repository: http://git.madduck.net/v/etc/zsh.git
10 # Shamelessly based on http://glandium.org/blog/?p=170
15 # return the full path to the root of the current git repository
16 [ -d "$GIT_DIR" ] && echo "$GIT_DIR" && return 0
18 relroot="$(git rev-parse --show-cdup 2>/dev/null)" || return 1
19 if [ -n "$relroot" ]; then
20 readlink -f "$relroot"
28 # return the name of the git branch we're on
30 ref=$(git symbolic-ref -q HEAD 2>/dev/null \
31 || git-name-rev --name-only HEAD 2>/dev/null) || return 1
32 echo "${ref#refs/heads/}"
42 echo "hg:$(hg branch)"
48 reporoot="$(bzr info | sed -rne 's, *branch root: ,,p')"
58 bzr version-info | while read i j; do
61 branch-nick:) branch="$j";;
64 echo "bzr:${branch}@$revno"
69 # return the type of the closest repository in the path hierarchy
72 [ -d ${dir}.git ] && echo git && break
73 [ -d ${dir}.bzr ] && echo bzr && break
74 [ -d ${dir}.hg ] && echo hg && break
75 [ "$(readlink -f ${dir:-.})" = / ] && echo NONE && break
80 __vcs_get_prompt_path_components()
82 # return formatted path components (prefix branch postfix) given
83 # the repository root and the branch.
85 # shortcut: if there are no arguments, return a default prompt
86 if [ -z "${1:-}" ]; then
87 pwdnamed="${(%):-%${_PROMPT_PATH_MAXLEN}<..<%~%<<}"
96 # replace named directories in the PWD, we need thi for the proper component
101 # store paths in arrays for component count calculation
102 typeset -la apwd apwdnamed areporoot
104 apwdnamed=(${(s:/:)pwdnamed})
105 areporoot=(${(s:/:)reporoot})
107 # get the number of leading and trailing path components. Since we're using
108 # %~ later and then /home/madduck suddenly becomes ~, which is 1, not
109 # 2 components, we calculate the leading component count by using the named
110 # path and the number of post components
111 local precomps postcomps
112 postcomps=$(($#apwd - $#areporoot))
113 precomps=$(($#apwdnamed - $postcomps))
116 (( $postcomps > 0 )) && postfix="${(%):-%${postcomps}~}"
118 # we don't want the prompt to get too long, so keep the total prompt length
119 # under $_PROMPT_PATH_MAXLEN (25), but ensure that the prefix is not shorter
120 # than $_PROMPT_PATH_MINLEN (10), no matter what
121 local prelen minlen prefix
122 prelen=$((${_PROMPT_PATH_MAXLEN:-25} - $#branch - $#postfix))
123 minlen=${_PROMPT_PATH_MINLEN:-10}
124 (( $prelen < $minlen )) && prelen=$minlen
125 prefix="${(%):-%${prelen}<..<%-${precomps}~%<<}"
127 echo "'$prefix'" "'$branch'" "'$postfix'"
130 __vcs_set_prompt_variables()
132 # set psvar[1..3] depending on repo type, or just psvar[1] if no repo found
133 local reporoot branch repotype
134 repotype="${1:-$(__vcs_get_repo_type)}"
138 reporoot="$(__git_get_reporoot)" ||
139 { error "could not determine git repository root"; return 1 }
140 branch="$(__git_get_branch)" ||
141 { error "could not determine git branch"; return 1 }
142 eval set -- $(__vcs_get_prompt_path_components "$reporoot" "$branch")
143 [ -d "$GIT_DIR" ] && set -- "$GIT_DIR" "$2" "$1"
146 reporoot="$(__hg_get_reporoot)" ||
147 { error "could not determine hg repository root"; return 1 }
148 branch="$(__hg_get_branch)" ||
149 { error "could not determine hg branch"; return 1 }
150 eval set -- $(__vcs_get_prompt_path_components "$reporoot" "$branch")
153 reporoot="$(__bzr_get_reporoot)" ||
154 { error "could not determine bzr repository root"; return 1 }
155 branch="$(__bzr_get_branch)" ||
156 { error "could not determine bzr branch"; return 1 }
157 eval set -- $(__vcs_get_prompt_path_components "$reporoot" "$branch")
162 *) warn "$repotype repositories not (yet) supported in the prompt";;
164 local p="%${MAXLEN}<..<%~%<<"
165 #TODO find a better way so we don't have to nuke $psvar, but since the
166 # %(nv.true.false) check for prompts checks element count, not
167 # content, that's all we get for now
172 psvar[1,3]=($1 $2 $3)
176 # too dangerous to be run as root
178 _update_vcs_prompt_vars_if_vcs_ran() {
179 local vcs="$(__vcs_get_repo_type)"
180 case "$(history $(($HISTCMD - 1)))" in
181 # $vcs appeared in last command, so be sure to update
182 *${vcs}*) __vcs_set_prompt_variables "$vcs"
185 precmd_functions+=_update_vcs_prompt_vars_if_vcs_ran
187 _update_vcs_prompt_vars() {
188 __vcs_set_prompt_variables
190 chpwd_functions+=_update_vcs_prompt_vars
193 _update_vcs_prompt_vars