prefetch_files.sh

#!/usr/bin/env bash
# docker build中のダウンロードに失敗しやすいファイルを事前にダウンロードしておく
set -eu

arch="${1:-$(uname -m | sed 's/x86_64/amd64/;s/aarch64/arm64/')}"
[ "$arch" != "amd64" ] && [ "$arch" != "arm64" ] && {
  echo "$0: unsupported architecture: $arch"
  exit 1
}

DOWNLOAD_DIR=$(cd "$(dirname "$0")"; pwd)/prefetched
mkdir -p "$DOWNLOAD_DIR/$arch"

download() {
  local url="$1"
  local filename="$2"

  echo "downloading $filename ..."
  [ -f "$DOWNLOAD_DIR/$arch/$filename" ] || {
    curl -fSL --retry 5 "$url" -o "$DOWNLOAD_DIR/$arch/$filename"
  }
}

# go
if [ "$arch" = "amd64" ]; then download https://go.dev/dl/go1.22.4.linux-amd64.tar.gz go.tar.gz; fi
if [ "$arch" = "arm64" ]; then download https://go.dev/dl/go1.22.4.linux-arm64.tar.gz go.tar.gz; fi

# julia; https://julialang.org/downloads/#official_binaries_for_manual_download
if [ "$arch" = "amd64" ]; then download https://julialang-s3.julialang.org/bin/linux/x64/1.10/julia-1.10.4-linux-x86_64.tar.gz    julia.tar.gz; fi
if [ "$arch" = "arm64" ]; then download https://julialang-s3.julialang.org/bin/linux/aarch64/1.10/julia-1.10.4-linux-aarch64.tar.gz julia.tar.gz; fi

# nodejs
node_version="$(curl -s https://nodejs.org/dist/index.json | jq -r '[.[]|select(.lts)][0].version')"
if [ "$arch" = "amd64" ]; then download "https://nodejs.org/dist/$node_version/node-$node_version-linux-x64.tar.gz"   nodejs.tar.gz; fi
if [ "$arch" = "arm64" ]; then download "https://nodejs.org/dist/$node_version/node-$node_version-linux-arm64.tar.gz" nodejs.tar.gz; fi

# mecab-ipadic (for NEologd)
(cd "${DOWNLOAD_DIR}/mecab-ipadic/"; sha1sum -c sha1sum.txt || curl -SfL "https://sourceforge.net/projects/mecab/files/mecab-ipadic/2.7.0-20070801/mecab-ipadic-2.7.0-20070801.tar.gz/download?use_mirror=autoselect#" -o mecab-ipadic-2.7.0-20070801.tar.gz)