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#! /bin/sh

EXPTDIR=`pwd`/test
ORIGDIR=${EXPTDIR}/original
MUTANTDIR=${EXPTDIR}/mutant
FROMORIG=${EXPTDIR}/from_original
FROMMUT=${EXPTDIR}/from_mutant

FIRST='Hello World!'
ADDONE=' First additional text.'
SECOND=${FIRST}${ADDONE}
ADDANOTHER=' Second addition.'
THIRD=${SECOND}${ADDANOTHER}

#In expt parent
rm -rf ${EXPTDIR}
mkdir -p ${ORIGDIR}

#In orig
cd ${ORIGDIR}
darcs init
echo ${FIRST} > hw.txt
darcs add hw.txt
darcs record --quiet --all -m 'Initial write of "Hello World" to hw.txt'
echo ${SECOND} > hw.txt
darcs record --quiet --all -m 'Text appended on the same line!' hw.txt

#In expt
cd ${EXPTDIR}
darcs get --quiet ${ORIGDIR} ${MUTANTDIR}

#In orig
cd ${ORIGDIR}
darcs tag --quiet 'This is the tag!'

#In mut
cd ${MUTANTDIR}
echo ${THIRD} > hw.txt
darcs record --quiet --all -m 'Now more text appended on the same line!' hw.txt
darcs pull --quiet --all --tags='This is the tag!' ${ORIGDIR}

#In expt
cd ${EXPTDIR}
darcs get --tag='This is the tag!' ${ORIGDIR} ${FROMORIG}
darcs get --tag='This is the tag!' ${MUTANTDIR} ${FROMMUT}

cd ${FROMORIG}
echo '****'
echo "PWD is "`pwd`
echo "darcs changes:"
darcs changes
echo "cat hw.txt is:"
cat hw.txt

cd ${FROMMUT}
echo '****'
echo "PWD is "`pwd`
echo "darcs changes:"
darcs changes
echo "cat hw.txt is:"
cat hw.txt

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