Essential CVS

Keywords

CVS recognizes keywords that can be included in any source file other than a binary file. When CVS finds a keyword in a file it is checking out, it expands the keyword to provide metadata about the latest revision of the file. CVS keywords take the following form:

$Keyword$

Example 3-21 shows a file that includes CVS keywords.

Example 3-21. CVS keywords

# Makefile for the Wizzard project
# First created by J Vesperman, 1 September 2002
#
# Current revision $Revision: 1.6 $
# On branch $Name:  $
# Latest change by $Author: chodacki $ on $Date: 2004/04/16 16:15:52 $
   
# Initial declarations
CC=gcc
SUBDIRS = man doc src lib
   
# Declaring phony targets
.PHONY: all clean install
   
all: wizzard
      echo "all: make complete"
   
clean:
      rm -f src/*.o
      rm -f wizzard
      echo "clean: make complete"
   
.
.
.
   
# Log record for Makefile changes:
# $Log: ch03.xml,v $
# Revision 1.6  2004/04/16 16:15:52  chodacki
# sfcleanup fixes
#
# Revision 1.5  2003/07/11 20:00:23  madd
# madd final SC edits
#
# Revision 1.4  2003/07/09 21:31:56  madd
# madd SC edits
#
# Revision 1.3  2003/07/07 21:52:50  madd
# madd SC edits
#
# Revision 1.2  2003/06/27 21:47:43  madd
# madd R2 conversion edits
#
# Revision 1.1  2003/06/26 22:22:10  madd
# Initial revision
#

Example 3-21 shows a makefile. The keywords are expanded when the file is checked out or updated. Example 3-22 shows the resulting expansions.

Example 3-22. Expanded keywords

# Current revision $Revision: 1.6 $ # On branch $Name: $ # Latest change by $Author: chodacki $ on $Date: ...