contrib/stg-dispatch

   1 #!/bin/sh
   2 set -e
   3
   4 # stg-dispatch - percollates files matching a pattern down to another patch.
   5 # It does the same job as stg-fold-files-from (and makes use of it to
   6 # do so), but from the patch containing the changes to migrate,
   7 # instead of doing so from the target patch.
   8
   9 # usage: stg-dispatch [-n] <topatch> [-#<n>[-<n>][,<n>]...] <file-pattern>
  10
  11 # Copyright (c) 2007 Yann Dirson <ydirson@altern.org>
  12 # Subject to the GNU GPL, version 2.
  13
  14 die()
  15 {
  16     echo >&2 "$(basename $0) error: $*"
  17     exit 1
  18 }
  19
  20 noact=0
  21 if [ "x$1" = "x-n" ]; then
  22     noact=1
  23     shift
  24 fi
  25
  26 TOPATCH="$1"
  27 shift
  28
  29 stg applied | grep "^$TOPATCH\$" >/dev/null ||
  30     die "cannot dispatch to unapplied patch '$TOPATCH'"
  31
  32 CURRENTPATCH=$(stg top)
  33
  34 [ "x$TOPATCH" != "x$CURRENTPATCH" ] ||
  35     die "dispatching to current patch ($CURRENTPATCH) makes no sense"
  36
  37 if [ $noact = 1 ]; then
  38     stg-fold-files-from "$CURRENTPATCH" -n "$@"
  39 else
  40     stg goto "$TOPATCH"
  41     stg-fold-files-from "$CURRENTPATCH" "$@"
  42     stg refresh
  43     stg goto "$CURRENTPATCH"
  44 fi