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emacs/lib-src/rcs-checkin

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#! /bin/sh
# This script accepts any number of file arguments and checks them into RCS.
# Copyright (C) 1993-1995, 2001-2011 Free Software Foundation, Inc.
# This file is part of GNU Emacs.
# GNU Emacs is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
# GNU Emacs is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
# You should have received a copy of the GNU General Public License
# along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
# Arguments which are detectably either RCS masters (with names ending in ,v)
# or Emacs version files (with names of the form foo.~<number>~) are ignored.
# For each file foo, the script looks for Emacs version files related to it.
# These files are checked in as deltas, oldest first, so that the contents of
# the file itself becomes the latest revision in the master.
#
# The first line of each file is used as its description text. The file itself
# is not deleted, as under VC with vc-keep-workfiles at its default of t, but
# all the version files are.
#
# If an argument file is already version-controlled under RCS, any version
# files are added to the list of deltas and deleted, and then the workfile
# is checked in again as the latest version. This is probably not quite
# what was wanted, and is the main reason VC doesn't simply call this to
# do checkins.
#
# This script is intended to be used to convert files with an old-Emacs-style
# version history for use with VC (the Emacs 19 version-control interface),
# which likes to use RCS as its back end. It was written by Paul Eggert
# and revised/documented for use with VC by Eric S. Raymond, Mar 19 1993.
case $# in
0)
echo "rcs-checkin: usage: rcs-checkin file ..."
echo "rcs-checkin: function: checks file.~*~ and file into a new RCS file"
echo "rcs-checkin: function: uses the file's first line for the description"
esac
# expr pattern to extract owner from ls -l output
ls_owner_pattern='[^ ][^ ]* *[^ ][^ ]* *\([^ ][^ ]*\)'
for file
do
# Make it easier to say `rcs-checkin *'
# by ignoring file names that already contain `~', or end in `,v'.
case $file in
*~* | *,v) continue
esac
# Ignore non-files too.
test -f "$file" || continue
# Check that file is readable.
test -r "$file" || exit
# If the RCS file does not already exist,
# initialize it with a description from $file's first line.
rlog -R "$file" >/dev/null 2>&1 ||
rcs -i -q -t-"`sed 1q $file`" "$file" || exit
# Get list of old files.
oldfiles=`
ls $file.~[0-9]*~ 2>/dev/null |
sort -t~ -n -k 2
`
# Check that they are properly sorted by date.
case $oldfiles in
?*)
oldfiles_by_date=`ls -rt $file $oldfiles`
test " $oldfiles
$file" = " $oldfiles_by_date" || {
echo >&2 "rcs-checkin: skipping $file, because its mod times are out of order.
Sorted by mod time:
$oldfiles_by_date
Sorted by name:
$oldfiles
$file"
continue
}
esac
echo >&2 rcs-checkin: checking in: $oldfiles $file
# Save $file as $file.~-~ temporarily.
mv "$file" "$file.~-~" || exit
# Rename each old file to $file, and check it in.
for oldfile in $oldfiles
do
mv "$oldfile" "$file" || exit
ls_l=`ls -l "$file"` || exit
owner=-w`expr " $ls_l" : " $ls_owner_pattern"` || owner=
echo "Formerly ${oldfile}" | ci -d -l -q $owner "$file" || exit
done
# Bring $file back from $file.~-~, and check it in.
mv "$file.~-~" "$file" || exit
ls_l=`ls -l "$file"` || exit
owner=-w`expr " $ls_l" : " $ls_owner_pattern"` || owner=
ci -d -q -u $owner -m"entered into RCS" "$file" || exit
done