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 "bzr:${branch}@$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 ${dir}.hg ] && echo hg && break
74 [ "$(readlink -f ${dir:-.})" = / ] && echo NONE && break
79 __vcs_get_prompt_path_components()
81 # return formatted path components (prefix branch postfix) given
82 # the repository root and the branch.
84 # shortcut: if there are no arguments, return a default prompt
85 if [ -z "${1:-}" ]; then
86 pwdnamed="%${_PROMPT_PATH_MAXLEN}<..<%~%<<"
87 pwdnamed="${(%)pwdnamed}"
96 # replace named directories in the PWD, we need thi for the proper component
99 pwdnamed="${(%)pwdnamed}"
101 # store paths in arrays for component count calculation
102 typeset -la apwd apwdnamed areporoot
104 apwdnamed=(${(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 if (( $postcomps > 0 )); then
117 postfix="%${postcomps}~"
118 postfix="${(%)postfix}"
121 # we don't want the prompt to get too long, so keep the total prompt length
122 # under $_PROMPT_PATH_MAXLEN (25), but ensure that the prefix is not shorter
123 # than $_PROMPT_PATH_MINLEN (10), no matter what
124 local prelen minlen prefix
125 prelen=$((${_PROMPT_PATH_MAXLEN:-25} - $#branch - $#postfix))
126 minlen=${_PROMPT_PATH_MINLEN:-10}
127 (( $prelen < $minlen )) && prelen=$minlen
128 prefix="%${prelen}<..<%-${precomps}~%<<"
129 prefix="${(%)prefix}"
131 echo "$prefix" "$branch" "$postfix"
134 __vcs_set_prompt_variables()
136 # set psvar[1..3] depending on repo type, or just psvar[1] if no repo found
137 local reporoot branch repotype
138 repotype="${1:-$(__vcs_get_repo_type)}"
142 reporoot="$(__git_get_reporoot)" ||
143 { error "could not determine git repository root"; return 1 }
144 branch="$(__git_get_branch)" ||
145 { error "could not determine git branch"; return 1 }
148 reporoot="$(__hg_get_reporoot)" ||
149 { error "could not determine hg repository root"; return 1 }
150 branch="$(__hg_get_branch)" ||
151 { error "could not determine hg branch"; return 1 }
154 reporoot="$(__bzr_get_reporoot)" ||
155 { error "could not determine bzr repository root"; return 1 }
156 branch="$(__bzr_get_branch)" ||
157 { error "could not determine bzr branch"; return 1 }
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 set -- $(__vcs_get_prompt_path_components "$reporoot" "$branch")
179 # too dangerous to be run as root
181 _update_vcs_prompt_vars_if_vcs_ran() {
182 local vcs="$(__vcs_get_repo_type)"
183 case "$(history $(($HISTCMD - 1)))" in
184 # $vcs appeared in last command, so be sure to update
185 *${vcs}*) __vcs_set_prompt_variables "$vcs"
188 precmd_functions+=_update_vcs_prompt_vars_if_vcs_ran
190 _update_vcs_prompt_vars() {
191 __vcs_set_prompt_variables
193 chpwd_functions+=_update_vcs_prompt_vars
196 _update_vcs_prompt_vars