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

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

       Paul Bame

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.

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.

       There aren't many at this time.

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

pmccabe(1), decomment(1)

                                                    17Jan2021                                     codechanges(1)

codechanges[-n]old-directorynew-directorycodechanges[-n]old-filenew-file