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scala-cli.sh
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scala-cli.sh
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#!/usr/bin/env bash
# This is the launcher script of Scala CLI (https://github.com/VirtusLab/scala-cli).
# This script downloads and runs the Scala CLI version set by SCALA_CLI_VERSION below.
#
# Download the latest version of this script at https://github.com/VirtusLab/scala-cli/raw/main/scala-cli.sh
set -eu
SCALA_CLI_VERSION="1.3.1"
GH_ORG="VirtusLab"
GH_NAME="scala-cli"
if [ "$SCALA_CLI_VERSION" == "nightly" ]; then
TAG="nightly"
else
TAG="v$SCALA_CLI_VERSION"
fi
if [ "$(expr substr $(uname -s) 1 5 2>/dev/null)" == "Linux" ]; then
arch=$(uname -m)
if [[ "$arch" == "aarch64" ]] || [[ "$arch" == "x86_64" ]]; then
SCALA_CLI_URL="https://github.com/$GH_ORG/$GH_NAME/releases/download/$TAG/scala-cli-${arch}-pc-linux.gz"
else
echoerr "scala-cli is not supported on $arch"
exit 2
fi
CACHE_BASE="$HOME/.cache/coursier/v1"
elif [ "$(uname)" == "Darwin" ]; then
arch=$(uname -m)
CACHE_BASE="$HOME/Library/Caches/Coursier/v1"
if [[ "$arch" == "x86_64" ]]; then
SCALA_CLI_URL="https://github.com/$GH_ORG/$GH_NAME/releases/download/$TAG/scala-cli-x86_64-apple-darwin.gz"
elif [[ "$arch" == "arm64" ]]; then
SCALA_CLI_URL="https://github.com/$GH_ORG/$GH_NAME/releases/download/$TAG/scala-cli-aarch64-apple-darwin.gz"
else
echoerr "scala-cli is not supported on $arch"
exit 2
fi
else
echo "This standalone scala-cli launcher is supported only in Linux and macOS. If you are using Windows, please use the dedicated launcher scala-cli.bat"
exit 1
fi
CACHE_DEST="$CACHE_BASE/$(echo "$SCALA_CLI_URL" | sed 's@://@/@')"
SCALA_CLI_BIN_PATH=${CACHE_DEST%.gz}
if [ ! -f "$CACHE_DEST" ]; then
mkdir -p "$(dirname "$CACHE_DEST")"
TMP_DEST="$CACHE_DEST.tmp-setup"
echo "Downloading $SCALA_CLI_URL"
curl -fLo "$TMP_DEST" "$SCALA_CLI_URL"
mv "$TMP_DEST" "$CACHE_DEST"
fi
if [ ! -f "$SCALA_CLI_BIN_PATH" ]; then
gunzip -k "$CACHE_DEST"
fi
if [ ! -x "$SCALA_CLI_BIN_PATH" ]; then
chmod +x "$SCALA_CLI_BIN_PATH"
fi
exec "$SCALA_CLI_BIN_PATH" "$@"