chainlint: prefix annotated test definition with line numbers

When chainlint detects problems in a test, it prints out the name of the
test script, the name of the problematic test, and a copy of the test
definition with "?!FOO?!" annotations inserted at the locations where
problems were detected. Taken together this information is sufficient
for the test author to identify the problematic code in the original
test definition. However, in a lengthy script or a lengthy test
definition, the author may still end up using the editor's search
feature to home in on the exact problem location.

To further assist the test author, display line numbers along with the
annotated test definition, thus allowing the author to jump directly to
each problematic line.

Suggested-by: Ævar Arnfjörð Bjarmason <[email protected]>
Signed-off-by: Eric Sunshine <[email protected]>
Signed-off-by: Taylor Blau <[email protected]>

Author: sunshineco

t/Makefile

@@ -94,7 +94,7 @@ check-chainlint:
 		done \
 	} >'$(CHAINLINTTMP_SQ)'/expect && \
 	$(CHAINLINT) --emit-all '$(CHAINLINTTMP_SQ)'/tests | \
-		grep -v '^[ 	]*$$' >'$(CHAINLINTTMP_SQ)'/actual && \
+		sed -e 's/^[1-9][0-9]* //;/^[ 	]*$$/d' >'$(CHAINLINTTMP_SQ)'/actual && \
 	if test -f ../GIT-BUILD-OPTIONS; then \
 		. ../GIT-BUILD-OPTIONS; \
 	fi && \

t/chainlint.pl

@@ -614,6 +614,7 @@ sub check_test {
 	my $problems = $parser->{problems};
 	return unless $emit_all || @$problems;
 	my $c = main::fd_colors(1);
+	my $lineno = $_[1]->[3];
 	my $start = 0;
 	my $checked = '';
 	for (sort {$a->[1]->[2] <=> $b->[1]->[2]} @$problems) {
@@ -623,10 +624,12 @@ sub check_test {
 		$start = $pos;
 	}
 	$checked .= substr($body, $start);
-	$checked =~ s/^\n//;
+	$checked =~ s/^/$lineno++ . ' '/mge;
+	$checked =~ s/^\d+ \n//;
 	$checked =~ s/(\s) \?!/$1?!/mg;
 	$checked =~ s/\?! (\s)/?!$1/mg;
 	$checked =~ s/(\?![^?]+\?!)/$c->{rev}$c->{red}$1$c->{reset}/mg;
+	$checked =~ s/^\d+/$c->{dim}$&$c->{reset}/mg;
 	$checked .= "\n" unless $checked =~ /\n$/;
 	push(@{$self->{output}}, "$c->{blue}# chainlint: $title$c->{reset}\n$checked");
 }
@@ -658,7 +661,7 @@ package main;
 # thread and ignore %ENV changes in subthreads.
 $ENV{TERM} = $ENV{USER_TERM} if $ENV{USER_TERM};
 
-my @NOCOLORS = (bold => '', rev => '', reset => '', blue => '', green => '', red => '');
+my @NOCOLORS = (bold => '', rev => '', dim => '', reset => '', blue => '', green => '', red => '');
 my %COLORS = ();
 sub get_colors {
 	return \%COLORS if %COLORS;
@@ -669,6 +672,7 @@ sub get_colors {
 	if ($ENV{TERM} =~ /xterm|xterm-\d+color|xterm-new|xterm-direct|nsterm|nsterm-\d+color|nsterm-direct/) {
 		%COLORS = (bold  => "\e[1m",
 			   rev   => "\e[7m",
+			   dim   => "\e[2m",
 			   reset => "\e[0m",
 			   blue  => "\e[34m",
 			   green => "\e[32m",
@@ -678,9 +682,11 @@ sub get_colors {
 	if (system("tput sgr0 >/dev/null 2>&1") == 0 &&
 	    system("tput bold >/dev/null 2>&1") == 0 &&
 	    system("tput rev  >/dev/null 2>&1") == 0 &&
+	    system("tput dim  >/dev/null 2>&1") == 0 &&
 	    system("tput setaf 1 >/dev/null 2>&1") == 0) {
 		%COLORS = (bold  => `tput bold`,
 			   rev   => `tput rev`,
+			   dim   => `tput dim`,
 			   reset => `tput sgr0`,
 			   blue  => `tput setaf 4`,
 			   green => `tput setaf 2`,