File: rollback.sh

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darcs 2.0.2-3
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#!/bin/bash

set -ev

range="0 1 2"

mkdir temp1 && cd temp1 && darcs init
touch f && darcs add f
for i in $range
do
  echo $i > f && darcs record -A me --ignore-time -m p$i --all f
done

cd .. && mkdir temp2 && cd temp2 && darcs init

set -x

: Demonstrate problem with regrem
for i in $range
do
  darcs pull --patch p$i ../temp1 --all
  if darcs whatsnew ; then
      : Resolve conflict - rollback our patch
      darcs revert --all
      darcs rollback -a --patch-name x0
      darcs revert --all
  fi
  : Create local change and record it
  echo X$i > f && darcs record -A me --ignore-time -m x$i --all f
done

cd ..
rm -rf temp1 temp2