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)  calculating
       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 between 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 modify.  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)

                                            17Jan2021                              codechanges(1)