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## vim:ft=zsh
## Written by Frank Terbeck <ft@bewatermyfriend.org>
## Distributed under the same BSD-ish license as zsh itself.
# Helper function for VCS_INFO_detect_*
#
# Usage:
# vcs_comm[detect_need_file]=FILENAMES VCS_INFO_bydir_detect DIRNAME
# where DIRNAME is a directory name and FILENAMES is a space-separated list
# of filenames.
#
# If any parent directory of the current working directory, other than the root
# directory, contains a subdirectory named DIRNAME that contains a file whose name
# is in FILENAMES, set vcs_comm[basedir] to the path of that parent directory and
# return true. Otherwise, return false.
setopt localoptions NO_shwordsplit
local dirname=$1
local basedir="." file
basedir=${basedir:P}
while [[ ${basedir} != '/' ]]; do
[[ -r ${basedir} ]] || return 1
if [[ -n ${vcs_comm[detect_need_file]} ]] ; then
[[ -d ${basedir}/${dirname} ]] && {
for file in ${(s: :)${vcs_comm[detect_need_file]}}; do
[[ -e ${basedir}/${dirname}/${file} ]] && break 2
done
}
else
[[ -d ${basedir}/${dirname} ]] && break
fi
basedir=${basedir:h}
done
[[ ${basedir} == "/" ]] && return 1
vcs_comm[basedir]=${basedir}
# TODO: Would the following be correct? ---
# rrn=${vcs_comm[basedir]:t}
return 0
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