zulip/tools/setup/install-shfmt

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#!/usr/bin/env bash
set -eu
version=3.9.0
arch="$(uname -m)"
case $arch in
"x86_64")
binary="shfmt_v${version}_linux_amd64"
sha256=d99b06506aee2ac9113daec3049922e70dc8cffb84658e3ae512c6a6cbe101b6
;;
"aarch64")
binary="shfmt_v${version}_linux_arm64"
sha256=5e511463068f3d27ae1b087fb597fb9e8ad865be2ac501964a222a834fc1c463
;;
esac
check_version() {
out="$(shfmt --version)" && [ "$out" = "v$version" ]
}
if ! check_version 2>/dev/null; then
set -x
tmpdir="$(mktemp -d)"
trap 'rm -r "$tmpdir"' EXIT
cd "$tmpdir"
curl -fLO --retry 3 "https://github.com/mvdan/sh/releases/download/v$version/$binary"
sha256sum -c <<<"$sha256 $binary"
chmod +x "$binary"
mv "$binary" /usr/local/bin/shfmt
check_version
fi