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)
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)
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