[PATCH] scripts/checkpatch.pl: add a check for the patch level(patch -p<num>)

From: Borislav Petkov
Date: Mon Dec 17 2007 - 02:13:03 EST


Being bitten by this several times myself here's a quick hack for checking the patch
level of the diffs in a patch file. It works only when checkpatch.pl is called
from within the kernel tree.

---
Signed-off-by: Borislav Petkov <bbpetkov@xxxxxxxx>

--
scripts/checkpatch.pl | 18 ++++++++++++++++++
1 files changed, 18 insertions(+), 0 deletions(-)

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 579f50f..b1329fc 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -653,6 +653,18 @@ sub CHK {
}
}

+sub check_patchlevel {
+
+ my ($path) = @_;
+ $path =~ s![^/]*/!!;
+
+ if ($tree) {
+ if (!stat($path)) {
+ WARN("Check the patchlevel (hint: patch option -p)");
+ }
+ }
+}
+
sub process {
my $filename = shift;
my @lines = @_;
@@ -713,10 +725,16 @@ sub process {
#extract the filename as it passes
if ($line=~/^\+\+\+\s+(\S+)/) {
$realfile=$1;
+
+ if ($realfile) {
+ check_patchlevel($realfile);
+ }
+
$realfile =~ s@^[^/]*/@@;
$in_comment = 0;
next;
}
+
#extract the line range in the file after the patch is applied
if ($line=~/^\@\@ -\d+(?:,\d+)? \+(\d+)(,(\d+))? \@\@/) {
$is_patch = 1;

--
Regards/Gruß,
Boris.
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