putdelta - SCCS check-in utility


       putdelta [options] [file-specifications]


       Putdelta  is  a  simple,  easy  to  use  interface to sccs (source code
       control system).  It checks into the sccs archive all files specified.


       Putdelta uses the sccs utilities admin and delta to  maintain  versions
       of a given source file in a dependent directory named "SCCS" It is more
       than an integration of the admin and delta utilities, however:

       o   If the sccs archive directory  does  not  already  exist,  putdelta
           creates it.

       o   If  the  file has not been locked, putdelta creates a lock (i.e., a
           "p." file).  If a "p." file already exists, putdelta  will  attempt
           to  use  the  lock  However,  if  the lock belongs to another user,
           putdelta will not check-in the file.

       o   Putdelta retains the executable-mode of the file which is  checked-
           in  That  is, if it is a shell-script (and has a mode such as 755),
           the mode of sccs "s." file is set to 555 The getdelta utility works
           in  the  opposite  fashion,  setting  the  extracted file's mode to
           correspond to that of the "s."  file.

       o   Putdelta sets the "-n" option of delta, so that your  file  is  not
           deleted after check-in.

       o   The  "s."  file  is post-processed by putdelta so that the check-in
           date matches the file's modification date.

       The last point is the fundamental advantage offered by  putdelta.   The
       ordinary  sccs  methodology  uses the current date as the check-in date
       This works well only for large projects  in  which  a  central  project
       administrator  is  responsible  for  controlling the versions of source
       files It does not work  well  for  small  projects,  for  which  sccs's
       primary  advantage  is  its  compact  storage of multiple versions of a

       By using the file's modification date as  a  reference,  you  can  more
       easily  back  up to a meaningful version - by date, rather than version

       Putdelta integrates the essential functions used in the  sccs  check-in
       process into one utility program.


       Some  options  which  you may specify to putdelta are passed through to
       the underlying admin and delta utilities:

       -s     suppresses some of the messages generated by the sccs admin  and
              delta utilities describing the number of lines changed, etc.

       -ytext specifies  the  change-history  text.   You will be prompted for
              this if you do not supply it, in versions after  the  first,  by
              the delta utility.

       Other options are handled directly by putdelta:

       -b     (binary) sets flags to ensure SCCS treats the file as binary

       -f     (force) creates a new delta even if no lock was made.

       -k     (keys)   on  the  initial  check-in,  causes  admin  to  require

       -n     (no-op) shows actions, but does not perform them.

       -rSID  specify SCCS-sid in case of multiple pending deltas


       Putdelta is designed to operate with the standard sccs utilities with a
       minimum  of fuss and bother It retains your working file after check-in
       since that facilitates development In effect,  it  simply  appends  the
       current version of each file which you specify onto the archive.


       Environment variables imported by putdelta include:

              specifies  the  directory  into  which  the  sccs "s." files are
              stored If no specified, putdelta assumes "SCCS".

       TZ     is the prevailing timezone,  which  putdelta  uses  to  set  the
              check-in  date  in  the  "s." file Putdelta sets the timezone to
              EST5EDT, in part to avoid conflict with get's date checking.


       Putdelta is a single binary file, written in  C  It  runs  in  a  POSIX


       Provide  a  mechanism  for  inserting  dummy  version  numbers  so that
       putdelta can bump the  release  number  (for  genuine  major  releases)
       Currently, the SID's are restricted to 1.1, 1.2, 1.3, etc.


       sccsput, sccsget, getdelta, admin(1), delta(1)


       Thomas Dickey (Software Productivity Consortium).