Commit Graph

4 Commits

Author SHA1 Message Date
Brian Behlendorf
f866a4ea1f Fix cstyle.pl warnings
As of perl v5.22.1 the following warnings are generated:

* Redundant argument in printf at scripts/cstyle.pl line 194

* Unescaped left brace in regex is deprecated, passed through
  in regex; marked by <-- HERE in m/\S{ <-- HERE / at
  scripts/cstyle.pl line 608.

They have been addressed by escaping the left braces and by
providing the correct number of arguments to printf based on
the fmt specifier set by the verbose option.

Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #4723
2016-06-03 09:08:14 -07:00
Ned Bass
5024046763 cstyle: allow right paren on its own line
Make the style checker script accept right parentheses on their own
lines. This is motivated by the Linux tracepoints macro
DECLARE_EVENT_CLASS.

The code within TP_fast_assign() (a parameter of DECLARE_EVENT_CLASS)
is normal C assignments terminated by semicolons.  But the style
checker forbids us from following a semicolon with a non-blank and
from preceding a right parenthesis with white space.  Therefore the
closing parenthesis must go on the next line, yet the style checker
foribs us from indenting it for readability.  Relaxing the
no-non-blank-after-semicolon rule would open the door to too many bad
style practices. So instead we relax the
no-white-space-before-right-paren rule if the parenthesis is on its
own line.  The relaxation is overriden with the -p option so we still
have a way to catch misuse of this style.

Signed-off-by: Ned Bass <bass6@llnl.gov>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
2014-11-17 11:13:50 -08:00
Brian Behlendorf
8ffef572ed cstyle: Allow spaces in all comments
Update the cstyle.pl script to allow pictures in all comments not
just header comments.  Recent changes from Illumos such as d3cc8b1
have relocated various pictures in the standard block comments to
make the code more readable.

Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Issue #1821
2013-12-18 16:46:35 -08:00
Brian Behlendorf
a35beedfb3 Add cstyle.pl utility and cstyle.1 man page
Cstyle is the C source style checker used by Illumos.  Since the
original ZFS source was written using these style guidelines they
must also be followed by ZoL for consistency.

The checker has been added to the scripts directory and may be
run on a per file basis.  New patches should be careful to avoid
introducing new style warnings.

Additionally, the 'checkstyle' target has been added to the top
level Makefile and can be used to check the entire source tree.
While Zol has historically attempted to follow the SunOS style
guide the lack of a rigorous style checker has allowed various
warning to be introduced.  Currently there are 2211 reported
style violations and we want to gradually eliminate these from
the tree.

Note the cstyle.1 man page is provided under man/man1/cstyle.1
but since it is a developer utility it is not installed along
with the other man pages.

Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
2013-10-30 11:36:30 -07:00