portainer/build/download_helm_binary.sh

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#!/usr/bin/env bash
set -euo pipefail
if [[ $# -ne 3 ]]; then
echo "Illegal number of parameters" >&2
exit 1
fi
PLATFORM=$1
ARCH=$2
HELM_VERSION=$3
HELM_DIST="helm-$HELM_VERSION-$PLATFORM-$ARCH"
if [[ ${PLATFORM} == "windows" ]]; then
wget --tries=3 --waitretry=30 --quiet -O tmp.zip "https://get.helm.sh/${HELM_DIST}.zip" && unzip -o -j tmp.zip "${PLATFORM}-${ARCH}/helm.exe" -d dist && rm -f tmp.zip
else
wget -qO- "https://get.helm.sh/${HELM_DIST}.tar.gz" | tar -x -z --strip-components 1 "${PLATFORM}-${ARCH}/helm"
mv "helm" "dist/helm"
chmod +x "dist/helm"
fi