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
17 relroot="$(git rev-parse --show-cdup 2>/dev/null)" || return 1
18 if [ -n "$relroot" ]; then
19 readlink -f "$relroot"
27 # return the name of the git branch we're on
29 ref=$(git symbolic-ref -q HEAD 2>/dev/null \
30 || git-name-rev --name-only HEAD 2>/dev/null) || return 1
31 echo "${ref#refs/heads/}"
41 echo "hg:$(hg branch)"
47 reporoot="$(bzr info | sed -rne 's, *branch root: ,,p')"
57 bzr version-info | while read i j; do
60 branch-nick:) branch="$j";;
63 echo "${branch}@$revno"
68 # return the type of the closest repository in the path hierarchy
71 [ -d ${dir}.git ] && echo git && break
72 [ -d ${dir}.bzr ] && echo bzr && break
73 [ -d ${dir}.hg ] && echo hg && break
74 [ -d ${dir}.svn ] && echo svn && break
75 [ -d ${dir}.svk ] && echo svk && break
76 [ -d ${dir}CVS ] && echo cvs && break
77 [ "$(readlink -f ${dir:-.})" = / ] && echo NONE && break
82 __vcs_get_prompt_path_components()
84 # return formatted path components (prefix branch postfix) given
85 # the repository root and the branch.
87 # shortcut: if there are no arguments, return a default prompt
88 if [ -z "${1:-}" ]; then
89 pwdnamed="%${_PROMPT_PATH_MAXLEN}<..<%~%<<"
90 pwdnamed="${(%)pwdnamed}"
99 # replace named directories in the PWD, we need thi for the proper component
102 pwdnamed="${(%)pwdnamed}"
104 # store paths in arrays for component count calculation
105 typeset -la apwd apwdnamed areporoot
107 apwdnamed=(${(s:/:)pwdnamed})
108 areporoot=(${(s:/:)reporoot})
110 # get the number of leading and trailing path components. Since we're using
111 # %~ later and then /home/madduck suddenly becomes ~, which is 1, not
112 # 2 components, we calculate the leading component count by using the named
113 # path and the number of post components
114 local precomps postcomps
115 postcomps=$(($#apwd - $#areporoot))
116 precomps=$(($#apwdnamed - $postcomps))
119 if (( $postcomps > 0 )); then
120 postfix="%${postcomps}~"
121 postfix="${(%)postfix}"
124 # we don't want the prompt to get too long, so keep the total prompt length
125 # under $_PROMPT_PATH_MAXLEN (25), but ensure that the prefix is not shorter
126 # than $_PROMPT_PATH_MINLEN (10), no matter what
127 local prelen minlen prefix
128 prelen=$((${_PROMPT_PATH_MAXLEN:-25} - $#branch - $#postfix))
129 minlen=${_PROMPT_PATH_MINLEN:-10}
130 (( $prelen < $minlen )) && prelen=$minlen
131 prefix="%${prelen}<..<%-${precomps}~%<<"
132 prefix="${(%)prefix}"
134 echo "$prefix" "$branch" "$postfix"
137 __vcs_set_prompt_variables()
139 # set psvar[1..3] depending on repo type, or just psvar[1] if no repo found
140 local reporoot branch repotype
141 repotype="${1:-$(__vcs_get_repo_type)}"
145 reporoot="$(__git_get_reporoot)" ||
146 { error "could not determine git repository root"; return 1 }
147 branch="$(__git_get_branch)" ||
148 { error "could not determine git branch"; return 1 }
151 reporoot="$(__hg_get_reporoot)" ||
152 { error "could not determine hg repository root"; return 1 }
153 branch="$(__hg_get_branch)" ||
154 { error "could not determine hg branch"; return 1 }
157 reporoot="$(__bzr_get_reporoot)" ||
158 { error "could not determine bzr repository root"; return 1 }
159 branch="$(__bzr_get_branch)" ||
160 { error "could not determine bzr branch"; return 1 }
165 *) warn "$repotype repositories not (yet) supported in the prompt";;
167 local p="%${MAXLEN}<..<%~%<<"
168 #TODO find a better way so we don't have to nuke $psvar, but since the
169 # %(nv.true.false) check for prompts checks element count, not
170 # content, that's all we get for now
175 set -- $(__vcs_get_prompt_path_components "$reporoot" "$branch")
182 # too dangerous to be run as root
184 _update_vcs_prompt_vars_if_vcs_ran() {
185 local vcs="$(__vcs_get_repo_type)"
186 case "$(history $(($HISTCMD - 1)))" in
187 # $vcs appeared in last command, so be sure to update
188 *${vcs}*) __vcs_set_prompt_variables "$vcs"
191 precmd_functions+=_update_vcs_prompt_vars_if_vcs_ran
193 _update_vcs_prompt_vars() {
194 __vcs_set_prompt_variables
196 chpwd_functions+=_update_vcs_prompt_vars
199 _update_vcs_prompt_vars