tg-prev.sh

   1 #!/bin/sh
   2 # TopGit - A different patch queue manager
   3 # (c) Petr Baudis <pasky@suse.cz>  2008
   4 # (c) Bert Wesarg <Bert.Wesarg@googlemail.com>  2009
   5 # GPLv2
   6
   7 name=
   8 head_from=
   9
  10
  11 ## Parse options
  12
  13 while [ -n "$1" ]; do
  14         arg="$1"; shift
  15         case "$arg" in
  16         -i|-w)
  17                 [ -z "$head_from" ] || die "-i and -w are mutually exclusive"
  18                 head_from="$arg";;
  19         -*)
  20                 echo "Usage: ${tgname:-tg} [...] prev [-i | -w] [<name>]" >&2
  21                 exit 1;;
  22         *)
  23                 [ -z "$name" ] || die "name already specified ($name)"
  24                 name="$arg";;
  25         esac
  26 done
  27
  28 head="$(git rev-parse --revs-only --abbrev-ref=loose HEAD --)"
  29 [ -n "$name" ] ||
  30         name="${head:-HEAD}"
  31 name="$(verify_topgit_branch "$name")"
  32 base_rev="$(git rev-parse --short --verify "refs/$topbases/$name" -- 2>/dev/null)" ||
  33         die "not a TopGit-controlled branch"
  34
  35 # select .topdeps source for HEAD branch
  36 [ "x$name" = "x$head" ] ||
  37         head_from=
  38
  39 cat_file "refs/heads/$name:.topdeps" $head_from | while read dep; do
  40         ref_exists "refs/$topbases/$dep" && branch_annihilated "$dep" && continue
  41         echol "$dep"
  42 done