checkpatch: improve --git <commit-count> shortcut
The --git <commit-count> shortcut can be confused by a tag with a dash
like v4.4-rc1.
Improve the test to verify the <commit-count> expression ends with a
dash followed by a numeric value.
Improve the git log result to verify the "<sha1> <subject>" output
as well.
Link: http://lkml.kernel.org/r/c4a3f759291d967641860c3a54bb81177f34325f.1462711962.git.joe@perches.com
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>
diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 9283662..6750595 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -809,11 +809,8 @@
my @commits = ();
foreach my $commit_expr (@ARGV) {
my $git_range;
- if ($commit_expr =~ m/-/) {
- my @tmp = split(/-/, $commit_expr);
- die "$P: incorrect git commit expression '$commit_expr' $!\n"
- if (@tmp != 2);
- $git_range = "-$tmp[1] $tmp[0]";
+ if ($commit_expr =~ m/^(.*)-(\d+)$/) {
+ $git_range = "-$2 $1";
} elsif ($commit_expr =~ m/\.\./) {
$git_range = "$commit_expr";
} else {
@@ -821,7 +818,8 @@
}
my $lines = `git log --no-color --no-merges --pretty=format:'%H %s' $git_range`;
foreach my $line (split(/\n/, $lines)) {
- $line =~ /(^\w+) (.*)/;
+ $line =~ /^([0-9a-fA-F]{40,40}) (.*)$/;
+ next if (!defined($1) || !defined($2));
my $sha1 = $1;
my $subject = $2;
unshift(@commits, $sha1);