lib-src/rcs-checkin

   1 #!/bin/sh
   2
   3 # This script accepts any number of file arguments and checks them into RCS.
   4 #
   5 # Arguments which are detectably either RCS masters (with names ending in ,v)
   6 # or Emacs version files  (with names of the form foo.~<number>~) are ignored.
   7 # For each file foo, the script looks for Emacs version files related to it.
   8 # These files are checked in as deltas, oldest first, so that the contents of
   9 # the file itself becomes the latest revision in the master.
  10 #
  11 # The first line of each file is used as its description text.  The file itself
  12 # is not deleted, as under VC with vc-keep-workfiles at its default of t, but
  13 # all the version files are.
  14 #
  15 # If an argument file is already version-controlled under RCS, any version
  16 # files are added to the list of deltas and deleted, and then the workfile
  17 # is checked in again as the latest version.  This is probably not quite
  18 # what was wanted, and is the main reason VC doesn't simply call this to
  19 # do checkins.
  20 #
  21 # This script is intended to be used to convert files with an old-Emacs-style
  22 # version history for use with VC (the Emacs 19 version-control interface),
  23 # which likes to use RCS as its back end.  It was written by Paul Eggert
  24 # and revised/documented for use with VC by Eric S. Raymond, Mr 19 1993.
  25
  26 case $# in
  27 0)
  28         echo "rcs-checkin: usage: rcs-checkin file ..."
  29         echo "rcs-checkin: function: checks file.~*~ and file into a new RCS file"
  30         echo "rcs-checkin: function: uses the file's first line for the description"
  31 esac
  32
  33 # expr pattern to extract owner from ls -l output
  34 ls_owner_pattern='[^ ][^ ]*  *[^ ][^ ]*  *\([^ ][^ ]*\)'
  35
  36 for file
  37 do
  38         # Check that file is readable.
  39         <$file || exit
  40
  41         # Make it easier to say `rcs-checkin *'
  42         # by ignoring file names that already contain `~', or end in `,v'.
  43         case $file in
  44         *~* | *,v) continue
  45         esac
  46         # Ignore non-files too.
  47         test -f "$file" || continue
  48
  49         # If the RCS file does not already exist,
  50         # initialize it with a description from $file's first line.
  51         rlog -R "$file" >/dev/null 2>&1 ||
  52         rcs -i -q -t-"`sed 1q $file`" "$file" || exit
  53
  54         # Get list of old files.
  55         oldfiles=`
  56                 ls $file.~[0-9]*~ 2>/dev/null |
  57                 sort -t~ -n +1
  58         `
  59
  60         # Check that they are properly sorted by date.
  61         case $oldfiles in
  62         ?*)
  63                 oldfiles_by_date=`ls -rt $file $oldfiles`
  64                 test " $oldfiles
  65 $file" = " $oldfiles_by_date" || {
  66                         echo >&2 "rcs-checkin: skipping $file, because its mod times are out of order.
  67
  68 Sorted by mod time:
  69 $oldfiles_by_date
  70
  71 Sorted by name:
  72 $oldfiles
  73 $file"
  74                         continue
  75                 }
  76         esac
  77
  78         echo >&2 rcs-checkin: checking in: $oldfiles $file
  79
  80         # Save $file as $file.~-~ temporarily.
  81         mv "$file" "$file.~-~" || exit
  82
  83         # Rename each old file to $file, and check it in.
  84         for oldfile in $oldfiles
  85         do
  86                 mv "$oldfile" "$file" || exit
  87                 ls_l=`ls -l "$file"` || exit
  88                 owner=-w`expr " $ls_l" : " $ls_owner_pattern"` || owner=
  89                 echo "Formerly ${oldfile}" | ci -d -l -q $owner "$file" || exit
  90         done
  91
  92         # Bring $file back from $file.~-~, and check it in.
  93         mv "$file.~-~" "$file" || exit
  94         ls_l=`ls -l "$file"` || exit
  95         owner=-w`expr " $ls_l" : " $ls_owner_pattern"` || owner=
  96         ci -d -q -u $owner -m"entered into RCS" "$file" || exit
  97 done
  98