Added cross-compilation tool

Author: moul

.dockerignore

@@ -0,0 +1,8 @@
+examples
+dist/
+
+.git
+*~
+*#
+.#*
+scw

.gitignore

@@ -2,6 +2,7 @@
 scw
 scwversion/version.go
 Godeps/
+dist/
 
 # junk
 *~

Dockerfile

@@ -0,0 +1,40 @@
+FROM golang:cross
+
+ENV CGO_ENABLED 0
+
+# Install Godep for vendoring
+RUN go get github.com/tools/godep
+# Recompile the standard library without CGO
+RUN go install -a std
+
+RUN apt-get install -y -q git
+
+#RUN go get -d github.com/docker/docker github.com/Sirupsen/logrus github.com/dustin/go-humanize github.com/kardianos/osext golang.org/x/crypto/ssh/terminal
+
+# Declare the maintainer
+MAINTAINER Scaleway Team <[email protected]> (@scaleway)
+
+# For convenience, set an env variable with the path of the code
+ENV APP_DIR /go/src/github.com/scaleway/scaleway-cli
+
+ADD . /go/src/github.com/scaleway/scaleway-cli
+
+#RUN cd $APP_DIR && godep get && godep save
+
+# Compile the binary and statically link
+RUN cd $APP_DIR && GOOS=darwin GOARCH=amd64          godep go build -a -v -ldflags '-d -w -s' -o /go/bin/scw-Darwin-x86_64
+RUN cd $APP_DIR && GOOS=darwin GOARCH=386            godep go build -a -v -ldflags '-d -w -s' -o /go/bin/scw-Darwin-i386
+RUN cd $APP_DIR && GOOS=linux  GOARCH=amd64          godep go build -a -v -ldflags '-w -s' -o /go/bin/scw-Linux-x86_64
+RUN cd $APP_DIR && GOOS=linux  GOARCH=386            godep go build -a -v -ldflags '-d -w -s' -o /go/bin/scw-Linux-i386
+RUN cd $APP_DIR && GOOS=linux  GOARCH=arm   GOARM=5  godep go build -a -v -ldflags '-d -w -s' -o /go/bin/scw-Linux-arm
+RUN cd $APP_DIR && GOOS=linux  GOARCH=arm   GOARM=6  godep go build -a -v -ldflags '-d -w -s' -o /go/bin/scw-Linux-armv6
+RUN cd $APP_DIR && GOOS=linux  GOARCH=arm   GOARM=7  godep go build -a -v -ldflags '-d -w -s' -o /go/bin/scw-Linux-armv7
+RUN cd $APP_DIR && GOOS=freebsd  GOARCH=amd64          godep go build -a -v -ldflags '-w -s' -o /go/bin/scw-Freebsd-x86_64
+RUN cd $APP_DIR && GOOS=freebsd  GOARCH=386            godep go build -a -v -ldflags '-d -w -s' -o /go/bin/scw-Freebsd-i386
+RUN cd $APP_DIR && GOOS=freebsd  GOARCH=arm   GOARM=5  godep go build -a -v -ldflags '-d -w -s' -o /go/bin/scw-Freebsd-arm
+#RUN cd $APP_DIR && GOOS=openbsd  GOARCH=amd64          godep go build -a -v -ldflags '-w -s' -o /go/bin/scw-Openbsd-x86_64
+#RUN cd $APP_DIR && GOOS=openbsd  GOARCH=386            godep go build -a -v -ldflags '-d -w -s' -o /go/bin/scw-Openbsd-i386
+#RUN cd $APP_DIR && GOOS=openbsd  GOARCH=arm   GOARM=5  godep go build -a -v -ldflags '-d -w -s' -o /go/bin/scw-Openbsd-arm
+RUN cd $APP_DIR && GOOS=windows  GOARCH=amd64          godep go build -a -v -ldflags '-w -s' -o /go/bin/scw-Windows-x86_64
+#RUN cd $APP_DIR && GOOS=windows  GOARCH=386            godep go build -a -v -ldflags '-d -w -s' -o /go/bin/scw-Windows-i386
+#RUN cd $APP_DIR && GOOS=windows  GOARCH=arm   GOARM=5  godep go build -a -v -ldflags '-d -w -s' -o /go/bin/scw-Windows-arm

Makefile

@@ -12,6 +12,7 @@ NAME = scw
 SRC = .
 REV = $(shell git rev-parse HEAD || echo "nogit")
 TAG = $(shell git describe --always || echo "nogit")
+BUILDER = scaleway-cli-builder
 
 
 BUILD_LIST = $(foreach int, $(SRC), $(int)_build)
@@ -22,20 +23,22 @@ TEST_LIST = $(foreach int, $(SRC), $(int)_test)
 FMT_TEST = $(foreach int, $(SRC), $(int)_fmt)
 
 
-.PHONY: $(CLEAN_LIST) $(TEST_LIST) $(FMT_LIST) $(INSTALL_LIST) $(BUILD_LIST) $(IREF_LIST) scwversion
+.PHONY: $(CLEAN_LIST) $(TEST_LIST) $(FMT_LIST) $(INSTALL_LIST) $(BUILD_LIST) $(IREF_LIST) scwversion/version.go
 
 
 all: build
-build: scwversion $(BUILD_LIST)
+build: scwversion/version.go $(BUILD_LIST)
 clean: $(CLEAN_LIST)
 install: $(INSTALL_LIST)
 test: $(TEST_LIST)
 iref: $(IREF_LIST)
 fmt: $(FMT_TEST)
 
 
-scwversion:
-	@sed 's/\(.*GITCOMMIT.* = \).*/\1"$(REV)"/;s/\(.*VERSION.* = \).*/\1"$(TAG)"/' scwversion/version.tpl > scwversion/version.go
+scwversion/version.go:
+	@sed 's/\(.*GITCOMMIT.* = \).*/\1"$(REV)"/;s/\(.*VERSION.* = \).*/\1"$(TAG)"/' scwversion/version.tpl > $@.tmp
+	@if [ "$$(diff $@.tmp $@ 2>&1)" != "" ]; then echo toto; mv $@.tmp $@; fi
+	@rm -f $@.tmp
 
 
 Godeps:
@@ -56,3 +59,15 @@ $(TEST_LIST): %_test:
 	$(GOTEST) ./$*
 $(FMT_TEST): %_fmt:
 	$(GOFMT) ./$*
+
+
+cross: scwversion/version.go
+	docker build -t $(BUILDER) .
+	@docker rm scaleway-cli-builer 2>/dev/null || true
+	mkdir -p dist
+	docker run --name=$(BUILDER) $(BUILDER) tar -cf - /etc/ssl > dist/ssl.tar
+	docker cp $(BUILDER):/go/bin tmp
+	docker rm $(BUILDER)
+	touch tmp/bin/*
+	mv tmp/bin/* dist/
+	rm -rf tmp dist/godep