Build and Install OpenLens

install_openlens.sh

#!/bin/bash

install_deps_windows() {
    echo "Installing Build Dependencies (Windows)..."
    choco install -y make visualstudio2019buildtools visualstudio2019-workload-vctools
}

install_deps_darwin() {
    echo "Installing Build Dependencies (Darwin)..."
    xcode-select --install
    if ! hash make 2>/dev/null; then
        if ! hash brew 2>/dev/null; then
            echo "Installing Homebrew..."
            /bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"
        fi
        echo "Installing make via Homebrew..."
        brew install make
    fi
}

install_deps_posix() {
    echo "Installing Build Dependencies (Posix)..."
    sudo apt-get install -y make g++ curl
}

install_darwin() {
    echo "Killing OpenLens (if open)..."
    killall OpenLens
    echo "Installing OpenLens (Darwin)..."
    rm -Rf "$HOME/Applications/OpenLens.app"
    arch="mac"
    if [[ "$(uname -m)" == "arm64" ]]; then
        arch="mac-arm64"  # credit @teefax
    fi
    cp -Rfp "$tempdir/lens/dist/$arch/OpenLens.app" "$HOME/Applications/"
    rm -Rf "$tempdir"
    
    print_alias_message
}

install_posix() {
    echo "Installing OpenLens (Posix)..."
    cd "$tempdir"
    sudo dpkg -i "$(ls -Art $tempdir/lens/dist/*.deb  | tail -n 1)"
    rm -Rf "$tempdir"
    
    print_alias_message
}

install_windows() {
    echo "Installing OpenLens (Windows)..."
    "$(/bin/ls -Art $tempdir/lens/dist/OpenLens*.exe  | tail -n 1)"
    rm -Rf "$tempdir"
    
    print_alias_message
}

install_nvm() {
    if [ -z "$NVM_DIR" ]; then
        echo "Installing NVM..."
        NVM_VERSION=$(curl -s https://api.github.com/repos/nvm-sh/nvm/releases/latest | sed -En 's/  "tag_name": "(.+)",/\1/p')
        curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/$NVM_VERSION/install.sh | bash
        NVM_DIR="$HOME/.nvm"
    fi
    [ -s "$NVM_DIR/nvm.sh" ] && \. "$NVM_DIR/nvm.sh"
}

build_openlens() {
    tempdir=$(mktemp -d)
    cd "$tempdir"
    if [ -z "$1" ]; then
        echo "Checking GitHub API for latests tag..."
        OPENLENS_VERSION=$(curl -s https://api.github.com/repos/lensapp/lens/releases/latest | sed -En 's/  "tag_name": "(.+)",/\1/p')
    else
        if [[ "$1" == v* ]]; then
            OPENLENS_VERSION="$1"
        else
            OPENLENS_VERSION="v$1"
        fi
        echo "Using supplied tag $OPENLENS_VERSION"
    fi
    if [ -z $OPENLENS_VERSION ]; then
        echo "Failed to get valid version tag. Aborting!"
        exit 1
    fi
    curl -L https://github.com/lensapp/lens/archive/refs/tags/$OPENLENS_VERSION.tar.gz | tar xvz
    mv lens-* lens
    cd lens
    NVM_CURRENT=$(nvm current)
    nvm install 16
    nvm use 16
    npm install -g yarn
    make build
    nvm use "$NVM_CURRENT"
}

print_alias_message() {
    if [ "$(type -t install_openlens)" != 'alias' ]; then
        printf "It is recommended to add an alias to your shell profile to run this script again.\n"
        printf "alias install_openlens=\"curl -o- https://gist.githubusercontent.com/jslay88/bf654c23eaaaed443bb8e8b41d02b2a9/raw/install_openlens.sh | bash\"\n\n"
    fi
}

if [[ "$(uname)" == "Linux" ]]; then
    install_deps_posix
    install_nvm
    build_openlens "$1"
    install_posix
elif [[ "$(uname)" == "Darwin" ]]; then
    install_deps_darwin
    install_nvm
    build_openlens "$1"
    install_darwin
else
    install_deps_windows
    install_nvm
    build_openlens "$1"
    install_windows
fi

echo "Done!"