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#!/bin/bash
set -euo pipefail
f_sha256() {
local l_file
l_file=$1
python -sBc "import hashlib;print(hashlib.sha256(open('$l_file','rb').read()).hexdigest())"
}
installer="$(mktemp)"
trap "rm -f ${installer}" EXIT
GOBIN="${1}"
VERSION="${2}"
HASHSUM="${3}"
CURL="$(which curl)"
echo "Downloading golangci-lint ${VERSION} installer ..." >&2
"${CURL}" -sfL "https://raw.githubusercontent.com/golangci/golangci-lint/${VERSION}/install.sh" > "${installer}"
echo "Checking hashsum ..." >&2
[ "${HASHSUM}" = "$(f_sha256 ${installer})" ]
chmod +x "${installer}"
echo "Launching installer ..." >&2
exec "${installer}" -d -b "${GOBIN}" "${VERSION}"