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codechanges(1)		     General Commands Manual		  codechanges(1)

NAME
     codechanges - computes the amount of code changes between two code trees or
     single files

SYNOPSIS
     codechanges [-n] old-directory new-directory

     codechanges [-n] old-file new-file

DESCRIPTION
     codechanges  recursively compares the two named directories (or files) cal-
     culating new/deleted/changed lines, not including comments or blank  lines,
     in  files	which  appear to be source files (C, C++, shell, and Makefiles).
     To include comments and blank lines, use the -n option.

APPLICATIONS
     codechanges is purpose designed to measure the amount of  code  change  be-
     tween  milestones	in  a  project's life.	The following output is from two
     stages, plus some artificial test cases, in the pmccabe code stream:

     NEW  DELETED   CHANGED   Old File, New File
     11   19   4    old.pmccabe/./Makefile pmccabe/./Makefile
     214  10   39   old.pmccabe/./cparse.c pmccabe/./cparse.c
     463  0    0    NEWFILE pmccabe/./decomment.c
     147  4    39   old.pmccabe/./dmain.c pmccabe/./dmain.c
     10   0    0    NEWFILE pmccabe/./dmain.h
     407  0    0    NEWFILE pmccabe/./getopt.c
     48   0    0    NEWFILE pmccabe/./getopt.h
     9	  18   12   old.pmccabe/./gettoken.c pmccabe/./gettoken.c
     18   18   15   old.pmccabe/./io.c pmccabe/./io.c
     175  43   20   old.pmccabe/./nmain.c pmccabe/./nmain.c
     194  11   22   old.pmccabe/./pmccabe.c pmccabe/./pmccabe.c
     42   0    20   old.pmccabe/./pmccabe.h pmccabe/./pmccabe.h
     0	  1318 0    old.pmccabe/./test/langMode.c DELETED
     24   0    0    NEWFILE pmccabe/./test006/Grapher.H
     620  0    0    NEWFILE pmccabe/./test006/Handler.H
     442  0    0    NEWFILE pmccabe/./test006/NodeArc.H
     764  0    0    NEWFILE pmccabe/./w/parser.C
     95   0    0    NEWFILE pmccabe/./w/tokens.h
     4	  0    0    NEWFILE pmccabe/./x.sh
     3687 1441 171  TOTAL

DIAGNOSTICS
     There aren't many at this time.

BUGS
     codechanges thinks it knows what source files are interesting and the  user
     may  not  agree with its choices.	It's a script and should be easy to mod-
     ify.  Ultimately this should probably be configurable.

     codechanges uses a program called decomment which guesses how to de-comment
     a file based on its file name and it's not always perfect.

AUTHOR
     Paul Bame

SEE ALSO
     pmccabe(1), decomment(1)

HP				    12Feb2003			  codechanges(1)
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