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build.bzl
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build.bzl
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def _go_command(ctx):
output = ctx.attr.output
if ctx.attr.os == "windows":
output = output + ".exe"
output_file = ctx.actions.declare_file(ctx.attr.os + "/" + ctx.attr.arch + "/" + output)
pkg = ctx.attr.pkg
ld_flags = "-s -w"
if ctx.attr.ld:
ld_flags = ld_flags + " " + ctx.attr.ld
options = [
"go",
"build",
"-o", output_file.path,
"-compiler", "gc",
"-gcflags", "-trimpath=${GOPATH}/src",
"-asmflags", "-trimpath=${GOPATH}/src",
"-ldflags", "'%s'" % ld_flags,
pkg,
]
command = " ".join(options)
envs = [
"CGO_ENABLED=0",
"GOOS="+ctx.attr.os,
"GOARCH="+ctx.attr.arch
]
if ctx.attr.mips: # https://github.com/golang/go/issues/27260
envs+=["GOMIPS="+ctx.attr.mips]
envs+=["GOMIPS64="+ctx.attr.mips]
envs+=["GOMIPSLE="+ctx.attr.mips]
envs+=["GOMIPS64LE="+ctx.attr.mips]
if ctx.attr.arm:
envs+=["GOARM="+ctx.attr.arm]
command = " ".join(envs) + " " + command
ctx.actions.run_shell(
outputs = [output_file],
command = command,
use_default_shell_env = True,
)
runfiles = ctx.runfiles(files = [output_file])
return [DefaultInfo(executable = output_file, runfiles = runfiles)]
foreign_go_binary = rule(
_go_command,
attrs = {
'pkg': attr.string(),
'output': attr.string(),
'os': attr.string(mandatory=True),
'arch': attr.string(mandatory=True),
'mips': attr.string(),
'arm': attr.string(),
'ld': attr.string(),
},
executable = True,
)