travis: run from a Makefile to parallelize testing

The travis tool itself runs all tests it is given in series. Use make
to parallelize running the tests, leaving a log in each subdirectory
in addition to the global log.

Signed-off-by: H. Peter Anvin (Intel) <hpa@zytor.com>

.gitignore

@@ -100,6 +100,7 @@ TAGS
 /test/testresults
 /test/ffmpegtest
 /test/x264test
+/travis.mk
 /version.h
 /version.mac
 /version.mak

Makefile.in

@@ -574,15 +574,14 @@ golden: $(PROGS)
 #
 # Travis tests
 #
-travis_version = travis/_version/_version.stdout
+travis: $(PROGS)
+	$(MAKE) -f travis.mk all
 
-$(travis_version): version
-	printf 'NASM version %s compiled on ?\n' `cat version` > $@
+clean-travis travis-clean:
+	$(MAKE) -f travis.mk clean
 
-travis: $(PROGS) $(travis_version)
-	-$(PYTHON3) tools/travis/nasm-t.py run --stop=n > travis.log
-	@if $(GREP) FAIL travis.log; then exit 1; else \
-		echo '=== All tests PASS ==='; fi
+update-travis travis-update:
+	$(MAKE) -f travis.mk update
 
 #
 # Rules to run autogen if necessary

configure.ac

@@ -371,5 +371,5 @@ dnl
 PA_CHECK_BAD_STDC_INLINE
 PA_C_TYPEOF
 
-AC_CONFIG_FILES([Makefile doc/Makefile misc/Makefile test/Makefile])
+AC_CONFIG_FILES([Makefile doc/Makefile misc/Makefile test/Makefile travis.mk])
 AC_OUTPUT

tools/travis/findtests.pl

@@ -0,0 +1,24 @@
+#!/usr/bin/perl
+
+use strict;
+use integer;
+use File::Find;
+use File::Spec;
+
+my($srcdir,$objdir,$subdir) = @ARGV;
+
+my $base = File::Spec->catdir($srcdir, $subdir);
+
+sub print_dir {
+    return if (! -d $_);
+    my($vol,$dirs) = File::Spec->splitpath($_, 1);
+    my @dirs = File::Spec->splitdir($dirs);
+
+    # $objdir really should be part of catfile, but that breaks our
+    # current "golden reference" files -- fix that at some point.
+    my $json = File::Spec->catfile(@dirs, $dirs[-1].'.json');
+    if ( -f $json ) {
+	print File::Spec->catfile($objdir, File::Spec->abs2rel($json, $srcdir)), "\n";
+    }
+}
+find({no_chdir => 1, wanted => \&print_dir}, $base);

travis.mk.in

@@ -0,0 +1,73 @@
+# -*- makefile -*-
+# SPDX-License-Identifier: BSD-2-Clause
+#
+# Makefile wrapper to parallelize running travis
+#
+# Run from the main Makefile with "make travis"
+# This Makefile, unlike the main one, assumes GNU make or equivalent
+#
+
+srcdir		 = @srcdir@
+objdir		 = @builddir@
+VPATH		 = @srcdir@
+
+PYTHON3		= @PYTHON3@
+GREP		= grep
+
+tools		= $(srcdir)/tools
+
+PERL		= perl
+PERLFLAGS	= -I$(srcdir)/perllib
+RUNPERL         = $(PERL) $(PERLFLAGS)
+
+NASM		= $(objdir)/nasm$(X)
+
+PERL		= perl
+RUNPERL		= $(PERL)
+
+PYTHON3		= @PYTHON3@
+GREP		= grep
+
+travistools	= $(tools)/travis
+TRAVIS		= $(travistools)/nasm-t.py
+testdir		= travis
+
+tests := $(shell $(RUNPERL) $(travistools)/findtests.pl $(srcdir) $(objdir) $(testdir))
+logs   = $(tests:.json=.log)
+
+all: travis.log
+	@ ! $(GREP) FAIL travis.log && echo '=== All tests PASS ==='
+
+.PRECIOUS: travis.log
+travis.log: $(logs)
+	@cat $(logs) > travis.log
+
+.PRECIOUS: %.log
+%.log: $(NASM) %.json
+	@echo 'Running: $(@D)'
+	@$(PYTHON3) $(TRAVIS) -d $(srcdir)/$(@D) \
+		--nasm $(NASM) run --stop=n > $@
+
+.PHONY: update
+update: $(tests:.json=.update)
+
+.PHONY: %.update
+%.update:
+	@echo 'Updating: $(@D)'
+	@$(PYTHON3) $(TRAVIS) -d $(srcdir)/$(@D) --nasm $(NASM) update
+
+#
+# Generated files needed for some specific tests
+# (If this ends up being a longer list, consider making subdirectory-
+# specific Makefiles).
+#
+GENFILES = $(testdir)/_version/_version.stdout
+
+$(testdir)/_version/_version.stdout: version
+	printf 'NASM version %s compiled on ?\n' `cat version` > $@
+
+$(testdir)/_version/_version.log: $(testdir)/_version/_version.stdout
+
+# XXX: need to clean up build artifacts, too
+clean:
+	rm -f travis.log $(logs)