JezK
Edit File: cvs-switchroot
#!/bin/mksh # $MirOS: src/scripts/mnt-cvsroot,v 1.19 2016/10/21 21:09:59 tg Exp $ #- # Copyright © 2005, 2008, 2011 # mirabilos <m@mirbsd.org> # # Provided that these terms and disclaimer and all copyright notices # are retained or reproduced in an accompanying document, permission # is granted to deal in this work without restriction, including un‐ # limited rights to use, publicly perform, distribute, sell, modify, # merge, give away, or sublicence. # # This work is provided “AS IS” and WITHOUT WARRANTY of any kind, to # the utmost extent permitted by applicable law, neither express nor # implied; without malicious intent or gross negligence. In no event # may a licensor, author or contributor be held liable for indirect, # direct, other damage, loss, or other issues arising in any way out # of dealing in the work, even if advised of the possibility of such # damage or existence of a defect, except proven that it results out # of said person’s immediate fault when using the work as intended. #- # Change CVSROOT of a checked out tree (and save space with it) # With option -T: change Tag instead of Root me=${0##*/} function die { print -ru2 -- "$me: $*" exit 1 } if [[ $1 = -T ]]; then tagmode=-T fn=Tag shift else tagmode= fn=Root fi newroot=$1 useroot=0 if [[ $newroot = - ]]; then shift newroot=$(realpath "$1") [[ -d $newroot ]] && if [[ -d $newroot/CVS ]]; then newroot=$newroot/CVS/$fn else newroot=$newroot/$fn fi useroot=1 fi if [[ -z $newroot || $newroot = -? ]]; then print -u2 "Syntax: $me newroot [dir [...]]" print -u2 "\t$me - .../CVS/Root [dir [...]]" print -u2 "\t$me -T - .../CVS/Tag [dir [...]]" exit 1 fi shift [[ -n $1 ]] || set -- . # realpath(2)ise arguments set -A arg i=0 for name in "$@"; do arg[i++]=$(realpath "$name") done T="$(mktemp ${arg[0]}/$me.XXXXXXXXXX)" || die fatal: cannot mktemp if (( useroot )); then rm -f "$T" ln "$newroot" "$T" || cp "$newroot" "$T" || \ die "fatal: cannot copy '$newroot' to temporary '$T'" fi trap 'rm -f "$T"; exit 0' 0 trap 'rm -f "$T"; trap - EXIT; exit 1' 1 2 3 5 13 15 if (( !useroot )); then chmod 664 "$T" print -r -- "$newroot" >"$T" fi let rv=0 find "${arg[@]}" -path \*/CVS/$fn -print0 |& while IFS= read -d '' -pr name; do rm "$name" || die "error: cannot rm <$name>" ln -f "$T" "$name" || if ! U="$(mktemp ${arg[0]}/$me.XXXXXXXXXX)"; then cp "$T" "$name" elif cat "$T" >"$U" && ln -f "$U" "$name"; then rm -f "$T" T="$U" else rm -f "$U" cp "$T" "$name" fi done exit 0