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checkpatch: colorize output to terminal

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Add optional colors to make seeing message types a bit easier.
The default is to show them on a tty.

Inspired by Linux commits 57230297116fa ("checkpatch: colorize output
to terminal") and 737c0767758b ("checkpatch: change format of --color
argument to --color[=WHEN]").

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
This commit is contained in:
Paolo Bonzini 2018-11-29 09:52:58 +01:00
parent c182b61996
commit 1db4269f34
1 changed files with 42 additions and 7 deletions
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49
scripts/checkpatch.pl
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@ -7,6 +7,7 @@
use strict;
use warnings;
use Term::ANSIColor qw(:constants);
my $P = $0;
$P =~ s@.*/@@g;
@ -26,6 +27,7 @@ my $tst_only;
my $emacs = 0;
my $terse = 0;
my $file = undef;
my $color = "auto";
my $no_warnings = 0;
my $summary = 1;
my $mailback = 0;
@ -64,6 +66,8 @@ Options:
is all off)
--test-only=WORD report only warnings/errors containing WORD
literally
--color[=WHEN] Use colors 'always', 'never', or only when output
is a terminal ('auto'). Default is 'auto'.
-h, --help, --version display this help and exit
When FILE is - read standard input.
@ -72,6 +76,14 @@ EOM
exit($exitcode);
}
# Perl's Getopt::Long allows options to take optional arguments after a space.
# Prevent --color by itself from consuming other arguments
foreach (@ARGV) {
if ($_ eq "--color" || $_ eq "-color") {
$_ = "--color=$color";
}
}
GetOptions(
'q|quiet+' => \$quiet,
'tree!' => \$tree,
@ -89,6 +101,8 @@ GetOptions(
'debug=s' => \%debug,
'test-only=s' => \$tst_only,
'color=s' => \$color,
'no-color' => sub { $color = 'never'; },
'h|help' => \$help,
'version' => \$help
) or help(1);
@ -144,6 +158,16 @@ if (!$chk_patch && !$chk_branch && !$file) {
die "One of --file, --branch, --patch is required\n";
}
if ($color =~ /^always$/i) {
$color = 1;
} elsif ($color =~ /^never$/i) {
$color = 0;
} elsif ($color =~ /^auto$/i) {
$color = (-t STDOUT);
} else {
die "Invalid color mode: $color\n";
}
my $dbg_values = 0;
my $dbg_possible = 0;
my $dbg_type = 0;
@ -371,7 +395,9 @@ if ($chk_branch) {
close($FILE);
$vname = substr($hash, 0, 12) . ' (' . $git_commits{$hash} . ')';
if ($num_patches > 1 && $quiet == 0) {
print "$i/$num_patches Checking commit $vname\n";
my $prefix = "$i/$num_patches";
$prefix = BLUE . BOLD . $prefix . RESET if $color;
print "$prefix Checking commit $vname\n";
$vname = "Patch $i/$num_patches";
} else {
$vname = "Commit " . $vname;
@ -1181,14 +1207,23 @@ sub possible {
my $prefix = '';
sub report {
if (defined $tst_only && $_[0] !~ /\Q$tst_only\E/) {
my ($level, $msg) = @_;
if (defined $tst_only && $msg !~ /\Q$tst_only\E/) {
return 0;
}
my $line = $prefix . $_[0];
$line = (split('\n', $line))[0] . "\n" if ($terse);
my $output = '';
$output .= BOLD if $color;
$output .= $prefix;
$output .= RED if $color && $level eq 'ERROR';
$output .= MAGENTA if $color && $level eq 'WARNING';
$output .= $level . ':';
$output .= RESET if $color;
$output .= ' ' . $msg . "\n";
push(our @report, $line);
$output = (split('\n', $output))[0] . "\n" if ($terse);
push(our @report, $output);
return 1;
}
@ -1196,13 +1231,13 @@ sub report_dump {
our @report;
}
sub ERROR {
if (report("ERROR: $_[0]\n")) {
if (report("ERROR", $_[0])) {
our $clean = 0;
our $cnt_error++;
}
}
sub WARN {
if (report("WARNING: $_[0]\n")) {
if (report("WARNING", $_[0])) {
our $clean = 0;
our $cnt_warn++;
}