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[PATCH] review requested, add a feature to mergemaster
Following the idea by Sune Stjerneby, suggestions from Andrzej Tobola
and Phil Regnauld, and a bit of discussion on -current, I would like to
request a review of a new mergemaster feature aimed to simplify manual
work in some cases.
A new option is added:
-R cvsroot For files that contain a $FreeBSD$ string, but which does not
match the one in the corresponding file in the temporary
root, attempt to extract the same version from the FreeBSD
CVS repository specified by cvsroot. The mergemaster utility
will then compare the CVS version with the installed version
using diff(1). If they are identical, mergemaster will
assume that the file in the destination directory was not
modified and therefore can be safely overwritten by the ver-
sion in the temporary root directory.
The patch is against fresh HEAD.
Index: mergemaster.8
===================================================================
RCS file: /home/ncvs/src/usr.sbin/mergemaster/mergemaster.8,v
retrieving revision 1.29
diff -u -r1.29 mergemaster.8
--- mergemaster.8 2 Jul 2004 23:12:48 -0000 1.29
+++ mergemaster.8 12 Jan 2005 13:41:25 -0000
@@ -39,6 +39,7 @@
.Op Fl u Ar N
.Op Fl w Ar N
.Op Fl D Ar /path
+.Op Fl R Ar cvsroot
.Sh DESCRIPTION
The
.Nm
@@ -222,6 +223,23 @@
.Pa /path/to/temp/root
instead of the default
.Pa /var/tmp/temproot .
+.It Fl R Ar cvsroot
+For files that contain a $FreeBSD$ string,
+but which does not match the one in the corresponding file
+in the temporary root,
+attempt to extract the same version from the
+.Fx
+CVS repository specified by
+.Ar cvsroot.
+The
+.Nm
+utility will then compare the CVS version with the installed version using
+.Xr diff 1 .
+If they are identical,
+.Nm
+will assume that the file in the destination directory
+was not modified and therefore can be safely
+overwritten by the version in the temporary root directory.
.It Fl d
Add the date and time to the name of the temporary
root directory.
Index: mergemaster.sh
===================================================================
RCS file: /home/ncvs/src/usr.sbin/mergemaster/mergemaster.sh,v
retrieving revision 1.51
diff -u -r1.51 mergemaster.sh
--- mergemaster.sh 7 Mar 2004 10:10:19 -0000 1.51
+++ mergemaster.sh 12 Jan 2005 13:52:11 -0000
@@ -30,6 +30,7 @@
echo ' -P Preserve files that are overwritten'
echo " -m /path/directory Specify location of source to do the make in"
echo " -t /path/directory Specify temp root directory"
+ echo " -R cvsroot Specify cvs repository and instruct to use it"
echo " -d Add date and time to directory name (e.g., /var/tmp/temproot.`date +%m%d.%H.%M`)"
echo " -u N Specify a numeric umask"
echo " -w N Specify a screen width in columns to sdiff"
@@ -238,7 +239,7 @@
# Check the command line options
#
-while getopts ":ascrvhipCPm:t:du:w:D:" COMMAND_LINE_ARGUMENT ; do
+while getopts ":ascrvhipCPm:t:R:du:w:D:" COMMAND_LINE_ARGUMENT ; do
case "${COMMAND_LINE_ARGUMENT}" in
s)
STRICT=yes
@@ -284,6 +285,9 @@
t)
TEMPROOT=${OPTARG}
;;
+ R)
+ CVSROOT=${OPTARG}
+ ;;
d)
TEMPROOT=${TEMPROOT}.`date +%m%d.%H.%M`
;;
@@ -896,21 +900,59 @@
echo " *** Temp ${COMPFILE} and installed are the same, deleting"
rm "${COMPFILE}"
else
- # Ok, the files are different, so show the user where they differ.
- # Use user's choice of diff methods; and user's pager if they have one.
- # Use more if not.
- # Use unified diffs by default. Context diffs give me a headache. :)
- #
- case "${AUTO_RUN}" in
+ DO_DIFF_LOOP=yes
+
+ case "${CVSROOT}" in
'')
- # prompt user to install/delete/merge changes
- diff_loop
;;
*)
- # If this is an auto run, make it official
- echo " *** ${COMPFILE} will remain for your consideration"
- ;;
- esac # Auto run test
+ CVSFILE=`grep "[$]${CVS_ID_TAG}:" ${DESTDIR}${COMPFILE#.} 2>/dev/null |
+ sed -e "s#.*[$]${CVS_ID_TAG}: \(src/.*\),v .*#\1#" 2>/dev/null`
+ CVSREV=`grep "[$]${CVS_ID_TAG}:" ${DESTDIR}${COMPFILE#.} 2>/dev/null |
+ sed -e "s#.*[$]${CVS_ID_TAG}: src/.*,v \([0-9.]*\) .*#\1#" 2>/dev/null`
+ if [ -n "${CVSFILE}" -a -n "${CVSREV}" ]; then
+ CVSFILE_N=`echo "${CVSFILE}"|wc -l`
+ CVSREV_N=`echo "${CVSREV}"|wc -l`
+ if [ ${CVSFILE_N} -eq 1 -a ${CVSREV_N} -eq 1 ]; then
+ CVSTEMP=`mktemp -t mmcvs`
+ cvs -d ${CVSROOT} co -r${CVSREV} -p ${CVSFILE} >${CVSTEMP} 2>/dev/null
+ if diff -q ${DIFF_OPTIONS} "${DESTDIR}${COMPFILE#.}" "${CVSTEMP}" > \
+ /dev/null 2>&1; then
+ rm -f ${CVSTEMP}
+ echo ''
+ echo " *** The installed version of ${COMPFILE} is the same as"
+ echo " its CVS revision ${CVSREV}, overwriting it"
+ echo ''
+ if mm_install "${COMPFILE}"; then
+ echo " *** ${COMPFILE} installed successfully"
+ else
+ echo " *** Problem installing ${COMPFILE}, it will remain to merge by hand"
+ fi
+ unset DO_DIFF_LOOP
+ fi # same file in CVS and in DESTDIR, can overwrite it
+ rm -f ${CVSTEMP}
+ fi # CVSFILE and CVSREV can be used
+ fi # CVSFILE and CVSREV non-empty
+ ;;
+ esac # cvs root test
+
+ if [ -n "${DO_DIFF_LOOP}" ]; then
+ # Ok, the files are different, so show the user where they differ.
+ # Use user's choice of diff methods; and user's pager if they have one.
+ # Use more if not.
+ # Use unified diffs by default. Context diffs give me a headache. :)
+ #
+ case "${AUTO_RUN}" in
+ '')
+ # prompt user to install/delete/merge changes
+ diff_loop
+ ;;
+ *)
+ # If this is an auto run, make it official
+ echo " *** ${COMPFILE} will remain for your consideration"
+ ;;
+ esac # Auto run test
+ fi # Yes, do a diff loop
fi # Yes, the files are different
fi # Yes, the file still remains to be checked
done # This is for the do way up there at the beginning of the comparison
Cheers,
\Anton.
--
The moronity of the universe is a monotonically increasing function. --
Jarkko Hietaniemi
