lib-src/rcs-checkin

   1 #! /bin/sh
   2
   3 # This script accepts any number of file arguments and checks them into RCS.
   4
   5 # Copyright (C) 1993-1995, 2001-2011 Free Software Foundation, Inc.
   6
   7 # This file is part of GNU Emacs.
   8
   9 # GNU Emacs is free software: you can redistribute it and/or modify
  10 # it under the terms of the GNU General Public License as published by
  11 # the Free Software Foundation, either version 3 of the License, or
  12 # (at your option) any later version.
  13
  14 # GNU Emacs is distributed in the hope that it will be useful,
  15 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  16 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17 # GNU General Public License for more details.
  18
  19 # You should have received a copy of the GNU General Public License
  20 # along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
  21
  22
  23 # Arguments which are detectably either RCS masters (with names ending in ,v)
  24 # or Emacs version files  (with names of the form foo.~<number>~) are ignored.
  25 # For each file foo, the script looks for Emacs version files related to it.
  26 # These files are checked in as deltas, oldest first, so that the contents of
  27 # the file itself becomes the latest revision in the master.
  28 #
  29 # The first line of each file is used as its description text.  The file itself
  30 # is not deleted, as under VC with vc-keep-workfiles at its default of t, but
  31 # all the version files are.
  32 #
  33 # If an argument file is already version-controlled under RCS, any version
  34 # files are added to the list of deltas and deleted, and then the workfile
  35 # is checked in again as the latest version.  This is probably not quite
  36 # what was wanted, and is the main reason VC doesn't simply call this to
  37 # do checkins.
  38 #
  39 # This script is intended to be used to convert files with an old-Emacs-style
  40 # version history for use with VC (the Emacs 19 version-control interface),
  41 # which likes to use RCS as its back end.  It was written by Paul Eggert
  42 # and revised/documented for use with VC by Eric S. Raymond, Mar 19 1993.
  43
  44 case $# in
  45 0)
  46         echo "rcs-checkin: usage: rcs-checkin file ..."
  47         echo "rcs-checkin: function: checks file.~*~ and file into a new RCS file"
  48         echo "rcs-checkin: function: uses the file's first line for the description"
  49 esac
  50
  51 # expr pattern to extract owner from ls -l output
  52 ls_owner_pattern='[^ ][^ ]*  *[^ ][^ ]*  *\([^ ][^ ]*\)'
  53
  54 for file
  55 do
  56         # Make it easier to say `rcs-checkin *'
  57         # by ignoring file names that already contain `~', or end in `,v'.
  58         case $file in
  59         *~* | *,v) continue
  60         esac
  61         # Ignore non-files too.
  62         test -f "$file" || continue
  63
  64         # Check that file is readable.
  65         test -r "$file" || exit
  66
  67         # If the RCS file does not already exist,
  68         # initialize it with a description from $file's first line.
  69         rlog -R "$file" >/dev/null 2>&1 ||
  70         rcs -i -q -t-"`sed 1q $file`" "$file" || exit
  71
  72         # Get list of old files.
  73         oldfiles=`
  74                 ls $file.~[0-9]*~ 2>/dev/null |
  75                 sort -t~ -n -k 2
  76         `
  77
  78         # Check that they are properly sorted by date.
  79         case $oldfiles in
  80         ?*)
  81                 oldfiles_by_date=`ls -rt $file $oldfiles`
  82                 test " $oldfiles
  83 $file" = " $oldfiles_by_date" || {
  84                         echo >&2 "rcs-checkin: skipping $file, because its mod times are out of order.
  85
  86 Sorted by mod time:
  87 $oldfiles_by_date
  88
  89 Sorted by name:
  90 $oldfiles
  91 $file"
  92                         continue
  93                 }
  94         esac
  95
  96         echo >&2 rcs-checkin: checking in: $oldfiles $file
  97
  98         # Save $file as $file.~-~ temporarily.
  99         mv "$file" "$file.~-~" || exit
 100
 101         # Rename each old file to $file, and check it in.
 102         for oldfile in $oldfiles
 103         do
 104                 mv "$oldfile" "$file" || exit
 105                 ls_l=`ls -l "$file"` || exit
 106                 owner=-w`expr " $ls_l" : " $ls_owner_pattern"` || owner=
 107                 echo "Formerly ${oldfile}" | ci -d -l -q $owner "$file" || exit
 108         done
 109
 110         # Bring $file back from $file.~-~, and check it in.
 111         mv "$file.~-~" "$file" || exit
 112         ls_l=`ls -l "$file"` || exit
 113         owner=-w`expr " $ls_l" : " $ls_owner_pattern"` || owner=
 114         ci -d -q -u $owner -m"entered into RCS" "$file" || exit
 115 done
 116