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#!/bin/bash
set -e
# This creates go bootstrap tarballs for the version of go currently
# installed on your system.
# It should be run as part of bumping dev-lang/go when a newer version
# of go is required for bootstrapping.
# Make sure the version of go required for bootstrapping is installed
# then run this script.
# The script will output the location where the bootstrap tarballs are
# stored.
# Next, update the GO_BV variable in the new version of the dev-lang/go
# ebuild to the version in the bootstrap tarballs file name.
go_tuples=(
darwin-amd64
darwin-arm64
linux-386
linux-amd64
linux-arm
linux-arm64
linux-loong64
linux-mips
linux-mipsle
linux-mips64
linux-mips64le
linux-ppc64
linux-ppc64le
linux-riscv64
linux-s390x
solaris-amd64
)
go_version=$(go version)
go_version=${go_version##*go}
go_version=${go_version%% *}
build_path=$(mktemp -d /tmp/go-bootstraps-XXXXXX)
pushd "${build_path}"
git clone https://github.com/golang/go.git
cd go
git checkout go"${go_version}"
cd src
for tuple in ${go_tuples[@]}; do
printf "Building go version %s bootstrap tarball for %s\n" "${go_version}" "${tuple}"
GOOS=${tuple%%-*} GOARCH=${tuple##*-} ./bootstrap.bash
rm -fr ../../go-${tuple}-bootstrap
done
cd ../..
rm -fr go
for f in *tbz; do
mv "${f}" "${f/go/go-${go_version}}"
done
popd
mv "${build_path}" "${build_path%-*}"
printf "The bootstrap tarballs are stored in %s\n" "${build_path%-*}"
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