tg-base.sh

   1 #!/bin/sh
   2 # TopGit - A different patch queue manager
   3 # (C) Petr Baudis <pasky@suse.cz>  2008
   4 # (C) Per Cederqvist <ceder@lysator.liu.se>  2010
   5 # (C) Kyle J. McKay <mackyle@gmail.com>  2017
   6 # All rights reserved.
   7 # GPLv2
   8
   9 USAGE="Usage: ${tgname:-tg} [...] base [--short[=n] | --no-short] [--] [branch...]"
  10
  11 usage()
  12 {
  13         if [ "${1:-0}" != 0 ]; then
  14                 printf '%s\n' "$USAGE" >&2
  15         else
  16                 printf '%s\n' "$USAGE"
  17         fi
  18         exit ${1:-0}
  19 }
  20
  21 ## Parse options
  22
  23 short="--short"
  24
  25 while [ $# -gt 0 ]; do case "$1" in
  26         -h|--help)
  27                 usage;;
  28         --short|--short=*|--no-short)
  29                 short="$1";;
  30         --)
  31                 shift
  32                 break;;
  33         -?*)
  34                 die "unrecognized option: $1";;
  35         *)
  36                 break;;
  37 esac; shift; done
  38
  39 if [ "$#" -eq 0 ]; then
  40         set -- HEAD
  41 fi
  42
  43 rv=0
  44 for rev in "$@"; do
  45         [ "$rev" != "@" ] || rev="HEAD"
  46         name="$(git symbolic-ref -q "$rev" 2>/dev/null)" || name="$rev"
  47         v_strip_ref name "$name"
  48         git rev-parse --verify $short "refs/$topbases/$name^0" -- 2>/dev/null || {
  49                 rv=1
  50                 echo "$rev is not a TopGit branch" >&2
  51         }
  52 done
  53 exit $rv