+# vcs_info() documentation: {{{
+#
+# The vcs_info() feature can be configured via zstyle:
+# First, the context in which we are working:
+# :vcs_info:<vcs-string>
+# ...where <vcs-string> is one of:
+# - git, git-svn, hg, darcs, bzr, mtn, svn, cvs or svk
+#
+# You can of course use ':vcs_info:*' to match all VCSs at once.
+#
+# There is one special context named 'init', that is in effect as long
+# as there was no decision what vcs backend to use.
+#
+# There are currently two styles, that are looked up:
+# promptformat - Used in most circumstances.
+# promptactionformat - Used if a there is a special action going on;
+# (like an interactive rebase or a merge conflict)
+# enable - Check in the 'init' context. If set to false,
+# vcs_info() will do nothing.
+# disable - Provide a list of systems, you don't want
+# the prompt to check for repositories (checked
+# in the 'init' context, too).
+# use-simple - If there are two different ways of gathering
+# information, you can select the simpler one
+# by setting this style to true; the default
+# is to use the not-that-simple code, which is
+# potentially a lot slower but might be more
+# accurate in all possible cases.
+#
+# The use-simple style is currently only available for the bzr backend.
+#
+# The default values for these in all contexts are:
+# promptformat " (%s)-[%b|%a]-"
+# promptactionformat " (%s)-[%b]-"
+# enable true
+#
+# In these formats, the following replacements are done:
+# %s - The vcs in use (git, hg, svn etc.)
+# %b - Information about the current branch.
+# %a - An identifier, that describes the action.
+# Only makes sense in promptactionformat.
+# %R - base directory of the repository.
+# %r - repository name
+# If %R is '/foo/bar/repoXY', %r is 'repoXY'.
+#
+# Not all vcs backends may support all replacements
+#
+# Examples:
+# Don't use vcs_info at all (even though it's in your prompt):
+# % zstyle ':vcs_info:*' enable false
+#
+# Don't provide prompt info for bzr and svk:
+# % zstyle ':vcs_info:*' disable bzr svk
+#
+# Provide a prompt specifically for git:
+# % zstyle ':vcs_info:git' promptformat ' GIT, BABY! [%b]'
+# % zstyle ':vcs_info:git' promptactionformat ' GIT ACTION! [%b|%a]'
+#
+# Use the quicker bzr backend (if you do, please report if it does
+# the-right-thing[tm] - thanks):
+# % zstyle ':vcs_info:bzr' use-simple true
+#
+# If you want colors, make sure you enclose the color codes in %{...%}, because
+# the string provided by vcs_info() is used for prompts.
+#
+# Example: PROMPT='%(?..[%?]-)%3~%$(vcs_info)#'
+#
+# This *requires* 'setopt prompt_subst'.
+# }}}
+VCS_INFO_adjust () { #{{{
+ [[ -n ${vcs_comm[overwrite_name]} ]] && vcs=${vcs_comm[overwrite_name]}
+ return 0
+}
+# }}}
+VCS_INFO_format () { # {{{
+ local msg
+
+ if [[ -n ${1} ]] ; then
+ zstyle -s ":vcs_info:${vcs}" promptactionformat msg
+ [[ -z ${msg} ]] && msg=' (%s)-[%b|%a]-'
+ else
+ zstyle -s ":vcs_info:${vcs}" promptformat msg
+ [[ -z ${msg} ]] && msg=' (%s)-[%b]-'
+ fi
+ printf '%s' ${msg}
+}
+# }}}
+VCS_INFO_realpath () { #{{{
+ # replacing 'readlink -f', which is really not portable.
+
+ # If there *is* a chpwd() function unfunction it here.
+ # The *real* zsh does not loose its chpwd(), because we run
+ # in a different context (process substitution in $PROMPT).
+ (( ${+functions[chpwd]} )) && unfunction chpwd
+ setopt chaselinks
+ cd $1 2>/dev/null && pwd
+}
+# }}}
+VCS_INFO_git_getaction () { #{{{
+ local gitaction='' gitdir=${1}
+ local tmp
+
+ for tmp in "${gitdir}/rebase-apply" \
+ "${gitdir}/rebase" \
+ "${gitdir}/../.dotest" ; do
+ if [[ -d ${tmp} ]] ; then
+ if [[ -f "${tmp}/rebasing" ]] ; then
+ gitaction="rebase"
+ elif [[ -f "${tmp}/applying" ]] ; then
+ gitaction="am"
+ else
+ gitaction="am/rebase"
+ fi
+ printf '%s' ${gitaction}
+ return 0
+ fi
+ done
+
+ for tmp in "${gitdir}/rebase-merge/interactive" \
+ "${gitdir}/.dotest-merge/interactive" ; do
+ if [[ -f "${tmp}" ]] ; then
+ printf '%s' "rebase-i"
+ return 0
+ fi
+ done
+
+ for tmp in "${gitdir}/rebase-merge" \
+ "${gitdir}/.dotest-merge" ; do
+ if [[ -d "${tmp}" ]] ; then
+ printf '%s' "rebase-m"
+ return 0
+ fi
+ done
+
+ if [[ -f "${gitdir}/MERGE_HEAD" ]] ; then
+ printf '%s' "merge"
+ else
+ if [[ -f "${gitdir}/BISECT_LOG" ]] ; then
+ printf '%s' "bisect"
+ fi
+ fi