Intel XENIX 286 Programmers Guide (86) - Tenox.tc

XENIX Programming SCCS: Source Code Control System
You may omit the level number of a version nu mber if you wish, that is, just give a
release number. If you do, the command automatically retrieves the most recent
version having the same release number. For example, if the most recent version in the
file s.demo.c is nu mbered 1.4, the command
get -r1 s.demo.c
retrieves the version 1.4. If there is no version with the given release number, the
command retrieves the most recent version in the previous existing release.
Changing the Release Number of a File
You can direct the delta command to change the release nu mber of a new version of a
file by using the -r option of the get command. In this case, the get command has the
form
get -e -rrel-num s. filename • • •
where -e is the required edit option, -rrel-num gives the new release number of the file,
and s.filename gives the name of the s-file containing the file to be retrieved. The new
release nu mber must be an entirely new nu mber, that is, no existing version may have
this number. You may give more than one file name.
The command retrieves the most recent version from the s-file, then copies the new
release number to the p-file. On the subsequent delta command, the new version is
saved using the new release nu mber and level number 1. For example, if the most
recent version in the s-file s.demo.c is 1.4, the command
get -e -r2 s.demo.c
causes the subsequent delta to save a new version 2.1, not 1.5. The new release number
applies to the new version only; the release nu mbers of previous versions are not
affected. Therefore, if you edit version 1.4 (from which 2.1 was derived) and save the
changes, you create a new version 1.5. Similarly, if you edit version 2.1, you create a
new version 2.2.
As before, the get command also displays a message showing the current version
number, the proposed version number, and the size of the file in lines. Sim ilarly, the
subsequent delta command displays the new version number and the number of lines
inserted, deleted, and unchanged in the new file.
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