1#!/bin/bash
2set -e -o pipefail
3
4# This wrapper copies an executable to a target device and executes it there.
5#
6# Usage: go_target_exec <target> <binary> <args>...
7#
8# This script can work with both ChromeOS/Android devices.
9#
10# It uses "target_tmpdir" to get the path to the temporary directory on the device.
11# It uses "target_cp" to copy the binary to the temporary directory on the device.
12# It uses "target_sh" to execute the binary remotely and get the output/exitcode.
13
14target="$1"
15shift
16
17binary="$1"
18shift
19
20# Get path to temporary directory on device and copy the binary over.
21tmpdir="$(target_tmpdir)"
22target_cp ${binary} ${target}:${tmpdir}/a.out
23
24# If current directory is inside GOROOT, then execute the binary in the
25# corresponding directory inside GOROOT on the device.
26targetdir="${tmpdir}"
27goroot="$(go_${target} env GOROOT)"
28if [[ "${PWD}" == ${goroot}/src/* ]]
29then
30	targetdir="${tmpdir}/goroot/src/${PWD#${goroot}/src/}"
31fi
32
33# Set GOROOT, and forward some environment variables to the remote shell.
34vars="GOROOT=${tmpdir}/goroot"
35vars+="${GOOS:+ GOOS=${GOOS}}"
36vars+="${GOARCH:+ GOARCH=${GOARCH}}"
37vars+="${GOMAXPROCS:+ GOMAXPROCS=${GOMAXPROCS}}"
38vars+="${GOTRACEBACK:+ GOTRACEBACK=${GOTRACEBACK}}"
39
40# Remotely execute the binary using ssh (for ChromeOS) or adb (for Android).
41target_sh ${target} "cd ${targetdir} && ${vars} ${GOLOADER} ${tmpdir}/a.out $*"
42