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# Copyright 2013-2022 Lawrence Livermore National Security, LLC and other
# Spack Project Developers. See the top-level COPYRIGHT file for details.
#
# SPDX-License-Identifier: (Apache-2.0 OR MIT)
import re
from spack.package import *
# THIS PACKAGE SHOULD NOT EXIST
# it exists to make up for the inability to:
# * use an external go compiler
# * have go depend on itself
# * have a sensible way to find gccgo without a dep on gcc
class GoBootstrap(Package):
"""Old C-bootstrapped go to bootstrap real go"""
homepage = "https://golang.org"
extendable = True
# NOTE: Go@1.4.x is the only supported bootstrapping compiler because all
# later versions require a Go compiler to build.
# See: https://golang.org/doc/install/source#go14 and
# https://github.com/golang/go/issues/17545 and
# https://github.com/golang/go/issues/16352
version(
"1.4-bootstrap-20171003",
sha256="f4ff5b5eb3a3cae1c993723f3eab519c5bae18866b5e5f96fe1102f0cb5c3e52",
url="https://dl.google.com/go/go1.4-bootstrap-20171003.tar.gz",
)
version(
"1.4-bootstrap-20170531",
sha256="49f806f66762077861b7de7081f586995940772d29d4c45068c134441a743fa2",
url="https://storage.googleapis.com/golang/go1.4-bootstrap-20170531.tar.gz",
)
version(
"1.4-bootstrap-20161024",
sha256="398c70d9d10541ba9352974cc585c43220b6d8dbcd804ba2c9bd2fbf35fab286",
url="https://storage.googleapis.com/golang/go1.4-bootstrap-20161024.tar.gz",
)
provides("golang@:1.4-bootstrap-20171003")
depends_on("git", type=("build", "link", "run"))
conflicts("os=monterey", msg="go-bootstrap won't build on new macOS")
conflicts("target=aarch64:", msg="Go bootstrap doesn't support aarch64 architectures")
# This virtual package allows a fallback to gccgo for aarch64,
# where go-bootstrap cannot be built(aarch64 was added with Go 1.5)
provides("go-external-or-gccgo-bootstrap")
# Support for aarch64 was added in Go 1.5, use an external package or gccgo instead:
conflicts("@:1.4", when="target=aarch64:")
executables = ["^go$"]
# When the user adds a go compiler using ``spack external find go-bootstrap``,
# this lets us get the version for packages.yaml. Then, the solver can avoid
# to build the bootstrap go compiler(for aarch64, it's only gccgo) from source:
@classmethod
def determine_version(cls, exe):
"""Return the version of an externally provided go executable or ``None``"""
output = Executable(exe)("version", output=str, error=str)
match = re.search(r"go version go(\S+)", output)
return match.group(1) if match else None
def patch(self):
if self.spec.satisfies("@:1.4.3"):
# NOTE: Older versions of Go attempt to download external files that have
# since been moved while running the test suite. This patch modifies the
# test files so that these tests don't cause false failures.
# See: https://github.com/golang/go/issues/15694
test_suite_file = FileFilter(join_path("src", "run.bash"))
test_suite_file.filter(
r"^(.*)(\$GOROOT/src/cmd/api/run.go)(.*)$",
r"# \1\2\3",
)
# Go uses a hardcoded limit of 4096 bytes for its printf functions.
# This can cause environment variables to be truncated.
filter_file("char buf[4096];", "char buf[131072];", "src/cmd/dist/unix.c", string=True)
def install(self, spec, prefix):
env["CGO_ENABLED"] = "0"
bash = which("bash")
with working_dir("src"):
bash("{0}.bash".format("all" if self.run_tests else "make"))
install_tree(".", prefix)
def setup_dependent_build_environment(self, env, dependent_spec):
"""Set GOROOT_BOOTSTRAP: When using an external compiler, get its GOROOT env"""
if self.spec.external:
# Use the go compiler added by ``spack external find go-bootstrap``:
goroot = Executable(self.spec.prefix.bin.go)("env", "GOROOT", output=str)
else:
goroot = self.spec.prefix
env.set("GOROOT_BOOTSTRAP", goroot)
def setup_build_environment(self, env):
env.set("GOROOT_FINAL", self.spec.prefix)
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