Makefile: add `check-debris' target

This non-parallelized target is useful for noticing core dumps
and preventing them from being clobbered as we run the test
suite.  It will also notice leftover temporary files and
directories.

This make target was used on OpenBSD 7.3 to develop at least two
recent fixes:

e281363ba937 (lei: ensure we run DESTROY|END at daemon exit w/ kqueue)
759885e60e59 (lei: ensure --stdin sets %ENV and $current_lei)

I considered using a per-test TMPDIR for this to enable
parallelization, but on-filesystem UNIX sockets won't work
with excessively long path names.

1 files changed, 28 insertions, 1 deletions

diff --git a/lib/PublicInbox/TestCommon.pm b/lib/PublicInbox/TestCommon.pm
index 4c819a4f..ae67a0ae 100644
--- a/lib/PublicInbox/TestCommon.pm
+++ b/lib/PublicInbox/TestCommon.pm
@@ -11,6 +11,7 @@ use POSIX qw(dup2);
 use IO::Socket::INET;
 use File::Spec;
 use Scalar::Util qw(isvstring);
+use Carp ();
 our @EXPORT;
 my $lei_loud = $ENV{TEST_LEI_ERR_LOUD};
 my $tail_cmd = $ENV{TAIL};
@@ -25,7 +26,7 @@ BEGIN {
                 create_coderepo no_scm_rights
                 tcp_host_port test_lei lei lei_ok $lei_out $lei_err $lei_opt
                 test_httpd xbail require_cmd is_xdeeply tail_f
-                ignore_inline_c_missing no_pollerfd);
+                ignore_inline_c_missing no_pollerfd no_coredump);
         require Test::More;
         my @methods = grep(!/\W/, @Test::More::EXPORT);
         eval(join('', map { "*$_=\\&Test::More::$_;" } @methods));
@@ -298,8 +299,31 @@ sub _run_sub ($$$) {
         }
 }
 
+sub no_coredump (@) {
+        my @dirs = @_;
+        my $cwdfh;
+        if (@dirs) { opendir($cwdfh, '.') or die "opendir(.): $!" }
+        my @found;
+        for (@dirs, '.') {
+                chdir $_;
+                my @cores = glob('core.* *.core');
+                push @cores, 'core' if -d 'core';
+                push(@found, "@cores found in $_") if @cores;
+                chdir $cwdfh if $cwdfh;
+        }
+        return if !@found; # keep it quiet.
+        is(scalar(@found), 0, 'no core dumps found');
+        diag(join("\n", @found) . Carp::longmess());
+        if (-t STDIN) {
+                diag 'press ENTER to continue, (q) to quit';
+                chomp(my $line = <STDIN>);
+                xbail 'user quit' if $line =~ /\Aq/;
+        }
+}
+
 sub run_script ($;$$) {
         my ($cmd, $env, $opt) = @_;
+        no_coredump($opt->{-C} ? ($opt->{-C}) : ());
         my ($key, @argv) = @$cmd;
         my $run_mode = $ENV{TEST_RUN_MODE} // $opt->{run_mode} // 1;
         my $sub = $run_mode == 0 ? undef : key2sub($key);
@@ -383,6 +407,7 @@ sub run_script ($;$$) {
                 local $/;
                 $$redir = <$fh>;
         }
+        no_coredump($opt->{-C} ? ($opt->{-C}) : ());
         $? == 0;
 }
 
@@ -656,6 +681,7 @@ SKIP: {
                         File::Path::rmtree([glob("$home/*")]);
                         File::Path::rmtree("$home/.config");
                 } else {
+                        no_coredump $tmpdir;
                         lei_ok(qw(daemon-pid), \"daemon-pid after $t");
                         chomp($daemon_pid = $lei_out);
                         if (!$daemon_pid) {
@@ -672,6 +698,7 @@ SKIP: {
                         tick;
                 }
                 ok(!kill(0, $daemon_pid), "$t daemon stopped");
+                no_coredump $tmpdir;
                 my $f = "$daemon_xrd/lei/errors.log";
                 open my $fh, '<', $f or BAIL_OUT "$f: $!";
                 my @l = <$fh>;