build: convert run.bash, run.bat, and run.rc into a Go program

This will enable test sharding over multiple VMs, to speed trybot answers.

Update #10029

Change-Id: Ie277c6459bc38005e4d6af14d22effeaa0a4667e
Reviewed-on: https://go-review.googlesource.com/6531
Reviewed-by: Russ Cox <rsc@golang.org>
Reviewed-by: Alex Brainman <alex.brainman@gmail.com>

1 files changed, 4 insertions, 234 deletions

diff --git a/src/run.bash b/src/run.bash
index 15184fd875..6fc864dc0e 100755
--- a/src/run.bash
+++ b/src/run.bash
@@ -12,6 +12,9 @@ unset CDPATH	# in case user has it set
 unset GOPATH    # we disallow local import for non-local packages, if $GOROOT happens
                 # to be under $GOPATH, then some tests below will fail
 
+export GOHOSTOS
+export CC
+
 # no core files, please
 ulimit -c 0
 
@@ -32,237 +35,4 @@ if ulimit -T &> /dev/null; then
 	[ "$(ulimit -H -T)" == "unlimited" ] || ulimit -S -T $(ulimit -H -T)
 fi
 
-# allow all.bash to avoid double-build of everything
-rebuild=true
-if [ "$1" == "--no-rebuild" ]; then
-	shift
-else
-	echo '##### Building packages and commands.'
-	time go install -a -v std cmd
-	echo
-fi
-
-# we must unset GOROOT_FINAL before tests, because runtime/debug requires
-# correct access to source code, so if we have GOROOT_FINAL in effect,
-# at least runtime/debug test will fail.
-unset GOROOT_FINAL
-
-# TODO(adg): create an environment variable and to permit the builders to
-# specify the timeout scale.
-timeout_scale=1
-# the freebsd-* builders are slow, and there's no easy way to make them faster.
-[ "$GOOS" == "freebsd" ] && timeout_scale=2
-# increase timeout for ARM up to 3 times the normal value
-[ "$GOARCH" == "arm" ] && timeout_scale=3
-
-echo '##### Testing packages.'
-time go test std cmd -short -timeout=$(expr 120 \* $timeout_scale)s -gcflags "$GO_GCFLAGS"
-echo
-
-# We set GOMAXPROCS=2 in addition to -cpu=1,2,4 in order to test runtime bootstrap code,
-# creation of first goroutines and first garbage collections in the parallel setting.
-echo '##### GOMAXPROCS=2 runtime -cpu=1,2,4'
-GOMAXPROCS=2 go test runtime -short -timeout=$(expr 300 \* $timeout_scale)s -cpu=1,2,4
-echo
-
-echo '##### sync -cpu=10'
-go test sync -short -timeout=$(expr 120 \* $timeout_scale)s -cpu=10
-
-xcd() {
-	echo
-	echo '#####' $1
-	builtin cd "$GOROOT"/src/$1 || exit 1
-}
-
-# NOTE: "set -e" cannot help us in subshells. It works until you test it with ||.
-#
-#	$ bash --version
-#	GNU bash, version 3.2.48(1)-release (x86_64-apple-darwin12)
-#	Copyright (C) 2007 Free Software Foundation, Inc.
-#
-#	$ set -e; (set -e; false; echo still here); echo subshell exit status $?
-#	subshell exit status 1
-#	# subshell stopped early, set exit status, but outer set -e didn't stop.
-#
-#	$ set -e; (set -e; false; echo still here) || echo stopped
-#	still here
-#	# somehow the '|| echo stopped' broke the inner set -e.
-#	
-# To avoid this bug, every command in a subshell should have '|| exit 1' on it.
-# Strictly speaking, the test may be unnecessary on the final command of
-# the subshell, but it aids later editing and may avoid future bash bugs.
-
-if [ "$GOOS" == "android" ]; then
-	# Disable cgo tests on android.
-	# They are not designed to run off the host.
-	# golang.org/issue/8345
-	CGO_ENABLED=0
-fi
-
-[ "$CGO_ENABLED" != 1 ] ||
-[ "$GOHOSTOS" == windows ] ||
-(xcd ../misc/cgo/stdio
-go run $GOROOT/test/run.go - . || exit 1
-) || exit $?
-
-[ "$CGO_ENABLED" != 1 ] ||
-(xcd ../misc/cgo/life
-go run $GOROOT/test/run.go - . || exit 1
-) || exit $?
-
-[ "$CGO_ENABLED" != 1 ] ||
-(xcd ../misc/cgo/test
-# cgo tests inspect the traceback for runtime functions
-extlink=0
-export GOTRACEBACK=2
-go test -ldflags '-linkmode=auto' || exit 1
-# linkmode=internal fails on dragonfly since errno is a TLS relocation.
-[ "$GOHOSTOS" == dragonfly ] || go test -ldflags '-linkmode=internal' || exit 1
-# TODO(austin): Add linux-ppc64(le) once external linking works (issue #8912)
-case "$GOHOSTOS-$GOARCH" in
-openbsd-386 | openbsd-amd64)
-	# test linkmode=external, but __thread not supported, so skip testtls.
-	go test -ldflags '-linkmode=external' || exit 1
-	extlink=1
-	;;
-darwin-386 | darwin-amd64)
-	# linkmode=external fails on OS X 10.6 and earlier == Darwin
-	# 10.8 and earlier.
-	case $(uname -r) in
-	[0-9].* | 10.*) ;;
-	*)
-		go test -ldflags '-linkmode=external'  || exit 1
-		extlink=1
-		;;
-	esac
-	;;
-android-arm | dragonfly-386 | dragonfly-amd64 | freebsd-386 | freebsd-amd64 | freebsd-arm | linux-386 | linux-amd64 | linux-arm | netbsd-386 | netbsd-amd64)
-	go test -ldflags '-linkmode=external' || exit 1
-	go test -ldflags '-linkmode=auto' ../testtls || exit 1
-	go test -ldflags '-linkmode=external' ../testtls || exit 1
-	extlink=1
-	
-	case "$GOHOSTOS-$GOARCH" in
-	netbsd-386 | netbsd-amd64) ;; # no static linking
-	freebsd-arm) ;; # -fPIC compiled tls code will use __tls_get_addr instead
-	                # of __aeabi_read_tp, however, on FreeBSD/ARM, __tls_get_addr
-	                # is implemented in rtld-elf, so -fPIC isn't compatible with
-	                # static linking on FreeBSD/ARM with clang. (cgo depends on
-			# -fPIC fundamentally.)
-	*)
-		if ! $CC -xc -o /dev/null -static - 2>/dev/null <<<'int main() {}' ; then
-			echo "No support for static linking found (lacks libc.a?), skip cgo static linking test."
-		else
-			go test -ldflags '-linkmode=external -extldflags "-static -pthread"' ../testtls || exit 1
-			go test ../nocgo || exit 1
-			go test -ldflags '-linkmode=external' ../nocgo || exit 1
-			go test -ldflags '-linkmode=external -extldflags "-static -pthread"' ../nocgo || exit 1
-		fi
-		case "$GOHOSTOS-$GOARCH" in
-		freebsd-amd64) ;; # clang -pie fails to link misc/cgo/test
-		*)
-			if ! $CC -xc -o /dev/null -pie - 2>/dev/null <<<'int main() {}' ; then
-				echo "No support for -pie found, skip cgo PIE test."
-			else
-				go test -ldflags '-linkmode=external -extldflags "-pie"' || exit 1
-				go test -ldflags '-linkmode=external -extldflags "-pie"' ../testtls || exit 1
-				go test -ldflags '-linkmode=external -extldflags "-pie"' ../nocgo || exit 1
-			fi
-			;;
-		esac
-		;;
-	esac
-	;;
-esac
-) || exit $?
-
-# Race detector only supported on Linux, FreeBSD and OS X,
-# and only on amd64, and only when cgo is enabled.
-# Delayed until here so we know whether to try external linking.
-case "$GOHOSTOS-$GOOS-$GOARCH-$CGO_ENABLED" in
-linux-linux-amd64-1 | freebsd-freebsd-amd64-1 | darwin-darwin-amd64-1)
-	echo
-	echo '##### Testing race detector.'
-	go test -race -i runtime/race flag os/exec
-	go test -race -run=Output runtime/race
-	go test -race -short flag os/exec
-	
-	# Test with external linking; see issue 9133.
-	if [ "$extlink" = 1 ]; then
-		go test -race -short -ldflags=-linkmode=external flag os/exec
-	fi
-esac
-
-[ "$CGO_ENABLED" != 1 ] || [ "$GOOS" == darwin ] ||
-(xcd ../misc/cgo/testgodefs
-./test.bash || exit 1
-) || exit $?
-
-[ "$CGO_ENABLED" != 1 ] ||
-[ "$GOHOSTOS" == windows ] ||
-(xcd ../misc/cgo/testso
-./test.bash || exit 1
-) || exit $?
-
-[ "$CGO_ENABLED" != 1 ] ||
-[ "$GOHOSTOS-$GOARCH" != linux-amd64 ] ||
-(xcd ../misc/cgo/testasan
-go run main.go || exit 1
-) || exit $?
-
-[ "$CGO_ENABLED" != 1 ] ||
-[ "$GOHOSTOS" == windows ] ||
-(xcd ../misc/cgo/errors
-./test.bash || exit 1
-) || exit $?
-
-[ "$GOOS" == nacl ] ||
-[ "$GOOS" == android ] ||
-(xcd ../doc/progs
-time ./run || exit 1
-) || exit $?
-
-[ "$GOOS" == android ] ||
-[ "$GOOS" == nacl ] ||
-[ "$GOARCH" == arm ] ||  # uses network, fails under QEMU
-(xcd ../doc/articles/wiki
-./test.bash || exit 1
-) || exit $?
-
-[ "$GOOS" == android ] ||
-[ "$GOOS" == nacl ] ||
-(xcd ../doc/codewalk
-time ./run || exit 1
-) || exit $?
-
-[ "$GOOS" == nacl ] ||
-[ "$GOARCH" == arm ] ||
-(xcd ../test/bench/shootout
-time ./timing.sh -test || exit 1
-) || exit $?
-
-[ "$GOOS" == android ] || # TODO(crawshaw): get this working
-[ "$GOOS" == openbsd ] || # golang.org/issue/5057
-(
-echo
-echo '#####' ../test/bench/go1
-go test ../test/bench/go1 || exit 1
-) || exit $?
-
-[ "$GOOS" == android ] ||
-(xcd ../test
-unset GOMAXPROCS
-GOOS=$GOHOSTOS GOARCH=$GOHOSTARCH go build -o runtest run.go || exit 1
-time ./runtest || exit 1
-rm -f runtest
-) || exit $?
-
-[ "$GOOS" == android ] ||
-[ "$GOOS" == nacl ] ||
-(
-echo
-time go run $GOROOT/src/cmd/api/run.go || exit 1
-) || exit $?
-
-echo
-echo ALL TESTS PASSED
+exec go tool dist test $@