cross copmile go toolchain

crosscompilego.sh

#!/bin/bash
# Copyright 2012 The Go Authors. All rights reserved.
# Use of this source code is governed by a BSD-style
# license that can be found in the LICENSE file.

# support functions for go cross compilation

type setopt >/dev/null 2>&1 && setopt shwordsplit
PLATFORMS="darwin/386 darwin/amd64 openbsd/386 openbsd/amd64 netbsd/386 netbsd/amd64 dragonfly/386 dragonfly/amd64 freebsd/386 freebsd/amd64 freebsd/arm linux/386 linux/amd64 linux/arm windows/386 windows/amd64"

function go-alias {
        GOOS=${1%/*}
        GOARCH=${1#*/}
        eval "function go-${GOOS}-${GOARCH} { ( GOOS=${GOOS} GOARCH=${GOARCH} go \"\$@\" ) }"
}

function go-crosscompile-build {
        GOOS=${1%/*}
        GOARCH=${1#*/}
        cd $(go env GOROOT)/src ; GOOS=${GOOS} GOARCH=${GOARCH} ./make.bash --no-clean 2>&1
}

function go-crosscompile-build-all {
        FAILURES=""
        for PLATFORM in $PLATFORMS; do
                CMD="go-crosscompile-build ${PLATFORM}"
                echo "$CMD"
                $CMD || FAILURES="$FAILURES $PLATFORM"
        done
        if [ "$FAILURES" != "" ]; then
            echo "*** go-crosscompile-build-all FAILED on $FAILURES ***"
            return 1
        fi
}

function go-all {
        FAILURES=""
        for PLATFORM in $PLATFORMS; do
                GOOS=${PLATFORM%/*}
                GOARCH=${PLATFORM#*/}
                CMD="go-${GOOS}-${GOARCH} $@"
                echo "$CMD"
                $CMD || FAILURES="$FAILURES $PLATFORM"
        done
        if [ "$FAILURES" != "" ]; then
            echo "*** go-all FAILED on $FAILURES ***"
            return 1
        fi
}

function go-build-all {
        FAILURES=""
        for PLATFORM in $PLATFORMS; do
                GOOS=${PLATFORM%/*}
                GOARCH=${PLATFORM#*/}
                SRCFILENAME=`echo $@ | sed 's/\.go//'`
                CURDIRNAME=${PWD##*/}
                OUTPUT=${SRCFILENAME:-$CURDIRNAME} # if no src file given, use current dir name
                CMD="go-${GOOS}-${GOARCH} build -o $OUTPUT-${GOOS}-${GOARCH} $@"
                echo "$CMD"
                $CMD || FAILURES="$FAILURES $PLATFORM"
        done
        if [ "$FAILURES" != "" ]; then
            echo "*** go-build-all FAILED on $FAILURES ***"
            return 1
        fi
}

for PLATFORM in $PLATFORMS; do
        go-alias $PLATFORM
done

unset -f go-alias