feat: stop cross compiling miniooni (#908)

See https://github.com/ooni/probe/issues/2119

While there, shrink the Makefile to only export the minimum
set of rules to comfortable build using GHA.

CLI/go-build-alpine

@@ -12,6 +12,9 @@ export CGO_ENABLED=1
 export GOARM=$GOARM
 export GOOS=$GOOS
 export GOARCH=$GOARCH
-go build -o ./CLI/$PRODUCT-$GOOS-$OONIARCH \
-	-ldflags='-s -w -extldflags "-static"' \
-	$GOLANG_EXTRA_FLAGS $PACKAGE
+for PACKAGE in $@; do
+	PRODUCT=$(basename $PACKAGE)
+	go build -o ./CLI/$PRODUCT-$GOOS-$OONIARCH \
+		-ldflags='-s -w -extldflags "-static"' \
+		$GOLANG_EXTRA_FLAGS $PACKAGE
+done

CLI/go-build-linux-static

@@ -2,11 +2,11 @@
 
 set -euo pipefail
 
-if [[ $# -ne 2 ]]; then
+if [[ $# -lt 2 ]]; then
 	echo "" 1>&2
 	echo "Compiler for a Go PACKAGE producing static linux/OONIARCH binaries." 1>&2
 	echo "" 1>&2
-	echo "usage: $0 OONIARCH PACKAGE" 1>&2
+	echo "usage: $0 OONIARCH PACKAGE..." 1>&2
 	echo "" 1>&2
 	echo "OONIARCH must be one of: 386, amd64, arm64, armv6, armv7." 1>&2
 	echo "" 1>&2
@@ -26,7 +26,7 @@ fi
 GOLANG_DOCKER_IMAGE=golang:$(cat GOVERSION)-alpine
 GOOS=linux
 OONIARCH=$1
-PACKAGE=$2
+shift
 
 if [[ $OONIARCH == armv7 ]]; then
 	GOARCH=arm
@@ -49,14 +49,12 @@ else
 	OONI_PSIPHON_TAGS=""
 fi
 
-PRODUCT=$(basename $PACKAGE)
-
 set -x
 
 docker pull --platform linux/$DOCKER_ARCH $GOLANG_DOCKER_IMAGE
 
-docker run --platform linux/$DOCKER_ARCH -e PRODUCT=$PRODUCT \
+docker run --platform linux/$DOCKER_ARCH \
 	-e GOARM=$GOARM -e GOOS=$GOOS -e GOARCH=$GOARCH \
-	-e PACKAGE=$PACKAGE -e OONI_PSIPHON_TAGS=$OONI_PSIPHON_TAGS \
+	-e OONI_PSIPHON_TAGS=$OONI_PSIPHON_TAGS \
 	-e OONIARCH=$OONIARCH -e GOLANG_EXTRA_FLAGS="${GOLANG_EXTRA_FLAGS:-}" \
-	-v $(pwd):/ooni -w /ooni $GOLANG_DOCKER_IMAGE ./CLI/go-build-alpine
+	-v $(pwd):/ooni -w /ooni $GOLANG_DOCKER_IMAGE ./CLI/go-build-alpine "$@"