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: git://git.madduck.net/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 "${ref#refs/heads/}"
35 __git_print_preprompt()
38 output=(${(f):-"$(git diff --stat --relative 2>/dev/null)"})
39 if [[ ${#output} -gt 1 ]]; then
40 echo changes on filesystem:
41 print "${(F)output[1,-2]}"
43 output=(${(f):-"$(git diff --cached --stat --relative 2>/dev/null)"})
44 if [[ ${#output} -gt 1 ]]; then
45 echo cached/staged changes:
46 print "${(F)output[1,-2]}"
57 echo "hg:$(hg branch)"
63 reporoot="$(bzr info | sed -rne 's, *branch root: ,,p')"
73 bzr version-info | while read i j; do
76 branch-nick:) branch="$j";;
79 echo "bzr:${branch}@$revno"
84 # return the type of the closest repository in the path hierarchy
87 [ -d ${dir}.git ] && echo git && break
88 [ -d "$GIT_DIR" ] && echo git && break
89 [ -d ${dir}.bzr ] && echo bzr && break
90 [ -d ${dir}.hg ] && echo hg && break
91 [ "$(readlink -f ${dir:-.})" = / ] && echo NONE && break
96 __vcs_get_prompt_path_components()
98 # return formatted path components (prefix branch postfix) given
99 # the repository root and the branch.
101 # shortcut: if there are no arguments, return a default prompt
102 if [ -z "${1:-}" ]; then
103 pwdnamed="${(%):-%${_PROMPT_PATH_MAXLEN}<..<%~%<<}"
108 local reporoot branch
112 # replace named directories in the PWD, we need thi for the proper component
115 pwdnamed="${(%):-%~}"
117 # store paths in arrays for component count calculation
118 typeset -la apwd apwdnamed areporoot
120 apwdnamed=(${(s:/:)pwdnamed})
121 areporoot=(${(s:/:)reporoot})
123 # get the number of leading and trailing path components. Since we're using
124 # %~ later and then /home/madduck suddenly becomes ~, which is 1, not
125 # 2 components, we calculate the leading component count by using the named
126 # path and the number of post components
127 local precomps postcomps
128 postcomps=$(($#apwd - $#areporoot))
129 precomps=$(($#apwdnamed - $postcomps))
132 (( $postcomps > 0 )) && postfix="${(%):-%${postcomps}~}"
134 # we don't want the prompt to get too long, so keep the total prompt length
135 # under $_PROMPT_PATH_MAXLEN (25), but ensure that the prefix is not shorter
136 # than $_PROMPT_PATH_MINLEN (10), no matter what
137 local prelen minlen prefix
138 prelen=$((${_PROMPT_PATH_MAXLEN:-25} - $#branch - $#postfix))
139 minlen=${_PROMPT_PATH_MINLEN:-10}
140 (( $prelen < $minlen )) && prelen=$minlen
141 prefix="${(%):-%${prelen}<..<%-${precomps}~%<<}"
143 echo "'$prefix'" "'$branch'" "'$postfix'"
146 __vcs_set_prompt_variables()
148 # set psvar[1..3] depending on repo type, or just psvar[1] if no repo found
149 local reporoot branch repotype
150 repotype="${1:-$(__vcs_get_repo_type)}"
154 reporoot="$(__git_get_reporoot)" ||
155 { error "could not determine git repository root"; return 1 }
156 branch="$(__git_get_branch)" ||
157 { error "could not determine git branch"; return 1 }
158 eval set -- $(__vcs_get_prompt_path_components "$reporoot" "$branch")
159 if [ -d "$GIT_DIR" ]; then
160 # poor man's replace until I find out how to do named dirs properly
162 local _D="${GIT_DIR/$HOME/~}"
163 set -- "$_D" "$2" "${${1#$_D}%/}"
167 reporoot="$(__hg_get_reporoot)" ||
168 { error "could not determine hg repository root"; return 1 }
169 branch="$(__hg_get_branch)" ||
170 { error "could not determine hg branch"; return 1 }
171 eval set -- $(__vcs_get_prompt_path_components "$reporoot" "$branch")
174 reporoot="$(__bzr_get_reporoot)" ||
175 { error "could not determine bzr repository root"; return 1 }
176 branch="$(__bzr_get_branch)" ||
177 { error "could not determine bzr branch"; return 1 }
178 eval set -- $(__vcs_get_prompt_path_components "$reporoot" "$branch")
183 *) warn "$repotype repositories not (yet) supported in the prompt";;
185 local p="%${MAXLEN}<..<%~%<<"
186 #TODO find a better way so we don't have to nuke $psvar, but since the
187 # %(nv.true.false) check for prompts checks element count, not
188 # content, that's all we get for now
193 psvar[1,3]=($1 $2 $3)
196 __vcs_print_preprompt()
199 repotype="${1:-$(__vcs_get_repo_type)}"
203 __git_print_preprompt
209 # too dangerous to be run as root
211 _update_vcs_prompt_vars_if_vcs_ran() {
212 local vcs="$(__vcs_get_repo_type)"
213 case "$(history $(($HISTCMD - 1)))" in
214 # $vcs appeared in last command, so be sure to update
215 *${vcs}*) __vcs_set_prompt_variables "$vcs"
218 precmd_functions+=_update_vcs_prompt_vars_if_vcs_ran
220 _update_vcs_prompt_vars() {
221 __vcs_set_prompt_variables
223 chpwd_functions+=_update_vcs_prompt_vars
226 [[ $? -eq 0 ]] && __vcs_print_preprompt
228 precmd_functions+=_print_preprompt
231 _update_vcs_prompt_vars