/
Rdiff
executable file
·53 lines (44 loc) · 1.29 KB
/
Rdiff
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#! /bin/sh
##
## Rdiff -- Diff 'without R version'
## Usage:
## R CMD Rdiff from-file to-file exitstatus
## where from-file equal to '-' means STDIN
ffile=${1}
tfile=${2}
exitstatus=${3}
## sed scripts to get rid of the startup message
scriptold='/^R : Copyright /,/quit R.$/{d;}'
scriptnew='/^R version /,/quit R.$/{d;}'
s1="s/‘/'/g"
s2="s/’/'/g"
## egrep pattern to get rid of some more
## <= 2.2.x was pattern='(^Number of.*:|^Time |^Loading required package.*'
pattern='(^Time |^Loading required package.*|^Package [A-Za-z][A-Za-z0-9]+ loaded'
case "${ffile}" in
*primitive-funs*)
pattern=${pattern}'|^\[1\] [19][0-9][0-9])'
;;
*)
pattern=${pattern}'|^<(environment|promise|pointer): )'
;;
esac
if test ${ffile} = '-' ; then
ffile=''
bfile=''
else
if test -f ${ffile} ; then
bfile=`basename "${ffile}"`
else
echo "no valid file ${ffile}"
exit 1
fi
fi
tmpfile=${TMPDIR-/tmp}/${bfile}-d.${$}
sed -e "${scriptold}" -e "${scriptnew}" -e "${s1}" -e "${s2}" ${ffile} | ${EGREP} -v "${pattern}" > ${tmpfile}
## some packages ship .Rout.save with CRLF endings
(tr -d '\r' < ${tfile} | sed -e "${scriptold}" -e "${scriptnew}" -e "${s1}" -e "${s2}" | \
${EGREP} -v "${pattern}" | \
diff -bw ${tmpfile} - ) && exitstatus=0
rm -f ${tmpfile}
exit ${exitstatus}