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authorJoe Perches <joe@perches.com>2013-07-03 15:05:36 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2013-07-03 16:07:45 -0700
commit351b2a1fe2d06f44b4c06d377744b2ac408b7407 (patch)
tree94566bc117b757bfab5c282d56c251121a7f33f9 /scripts
parent7d0b6594e1055e3d4efcc28af11a8e42dd85ded4 (diff)
downloadlinux-linaro-stable-351b2a1fe2d06f44b4c06d377744b2ac408b7407.tar.gz
checkpatch: cache last camelcase hash as .checkpatch-camelcase.<commit>
Add a file to cache the CamelCase variables found by <commit> to reduce the time it takes to scan the include/ directory. Filename is '.checkpatch-camelcase.<commit>' and it is created only only if a .git directory exists. <commit> is determined by the last non-merge commit id in the include/ path. Reduces checkpatch run time by ~12 cpu seconds on my little netbook. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'scripts')
-rwxr-xr-xscripts/checkpatch.pl26
1 files changed, 26 insertions, 0 deletions
diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 0d94853079ec..6afcd1239ca5 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -399,7 +399,23 @@ sub seed_camelcase_includes {
return if ($camelcase_seeded);
my $files;
+ my $camelcase_git_file = "";
+
if (-d ".git") {
+ my $git_last_include_commit = `git log --no-merges --pretty=format:"%h%n" -1 -- include`;
+ chomp $git_last_include_commit;
+ $camelcase_git_file = ".checkpatch-camelcase.$git_last_include_commit";
+ if (-f $camelcase_git_file) {
+ open(my $camelcase_file, '<', "$camelcase_git_file")
+ or warn "$P: Can't read '$camelcase_git_file' $!\n";
+ while (<$camelcase_file>) {
+ chomp;
+ $camelcase{$_} = 1;
+ }
+ close($camelcase_file);
+
+ return;
+ }
$files = `git ls-files include`;
} else {
$files = `find $root/include -name "*.h"`;
@@ -409,6 +425,16 @@ sub seed_camelcase_includes {
seed_camelcase_file($file);
}
$camelcase_seeded = 1;
+
+ if ($camelcase_git_file ne "") {
+ unlink glob ".checkpatch-camelcase.*";
+ open(my $camelcase_file, '>', "$camelcase_git_file")
+ or warn "$P: Can't write '$camelcase_git_file' $!\n";
+ foreach (sort { lc($a) cmp lc($b) } keys(%camelcase)) {
+ print $camelcase_file ("$_\n");
+ }
+ close($camelcase_file);
+ }
}
$chk_signoff = 0 if ($file);