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# Move to the root directory of a VCS working copy
vr() {
local path=${1:-$PWD}
path=${path%/}
# Raise some helpful errors
if ! [[ -e $path ]] ; then
printf 'bash: %s: %s: No such file or directory\n' \
"$FUNCNAME" "$path"
return
fi
if ! [[ -d $path ]] ; then
printf 'bash: %s: %s: Not a directory\n' \
"$FUNCNAME" "$path"
return
fi
if ! [[ -x $path ]] ; then
printf 'bash: %s: %s: Permission denied\n' \
"$FUNCNAME" "$path"
return
fi
# Ask Git the top level
local git_root=$(cd -- "$path" && git rev-parse --show-toplevel 2>/dev/null)
if [[ $git_root ]] ; then
cd -- "$git_root"
return
fi
# Ask Mercurial the top level
local hg_root=$(cd -- "$path" && hg root 2>/dev/null)
if [[ $hg_root ]] ; then
cd -- "$hg_root"
return
fi
# If we have a .svn dir, iterate upwards until we find an ancestor that
# doesn't; hopefully that's the root
if [[ -d $path/.svn ]] ; then
local search=$path
while [[ $search ]] ; do
if [[ -d ${search%/*}/.svn ]] ; then
search=${search%/*}
else
cd -- "$search"
return
fi
done
fi
# Couldn't find repository root, say so
printf 'bash: %s: Failed to find repository root\n' \
"$FUNCNAME" >&2
return 1
}
complete -A directory vr
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