multi/install at master · coryfklein/multi · GitHub

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#!/bin/bash

# From http://stackoverflow.com/a/21188136/446554
get_abs_filename() {
    echo "$(cd "$(dirname "$1")" && pwd)/$(basename "$1")"
}

MODE="$1"  # Usage: ./install [--global]
INSTALL_SCRIPT_DIR=$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )
DEFAULT_CONFIG_FILENAME="default.config"
EXECUTABLE="multi"
EXECUTABLE_SOURCE=$(get_abs_filename "${INSTALL_SCRIPT_DIR}/${EXECUTABLE}")

if [[ "$MODE" == "--global" ]]; then
    echo "Installing to /usr/local/bin"
    echo ""

    HOME_CONFIG_FILENAME="${HOME}/.multi"
    ETC_CONFIG_FILENAME="/etc/multi"
    INSTALLED_EXECUTABLE="/usr/local/bin/${EXECUTABLE}"

    # Install the default config file in the user's home directory
    if [[ ! -f $HOME_CONFIG_FILENAME ]]; then
        echo "Copying default config to $HOME_CONFIG_FILENAME"
        cp "${INSTALL_SCRIPT_DIR}/$DEFAULT_CONFIG_FILENAME" "$HOME_CONFIG_FILENAME"
    elif [[ -f $HOME_CONFIG_FILENAME ]]; then
        echo "WARN: $HOME_CONFIG_FILENAME already exists. Not overwriting."
    fi

    # Install the default config file into /etc
    if [[ ! -f $ETC_CONFIG_FILENAME ]]; then
        echo "Copying default config to $ETC_CONFIG_FILENAME"
        sudo cp "${INSTALL_SCRIPT_DIR}/$DEFAULT_CONFIG_FILENAME" "$ETC_CONFIG_FILENAME"
    elif [[ -f $ETC_CONFIG_FILENAME ]]; then
        echo "WARN: $ETC_CONFIG_FILENAME already exists. Not overwriting."
    fi

    # Install executable in /usr/local/bin
    if [[ ! -f $INSTALLED_EXECUTABLE ]]; then
        echo "Installing $EXECUTABLE to $INSTALLED_EXECUTABLE"
        sudo cp "$EXECUTABLE_SOURCE" "$INSTALLED_EXECUTABLE"
        sudo chmod +x "$INSTALLED_EXECUTABLE"
    elif [[ -f $INSTALLED_EXECUTABLE ]]; then
        echo "WARN: $INSTALLED_EXECUTABLE already exists. Not overwriting."
    fi

    if [[ ":$PATH:" != *":/usr/local/bin:"* ]]; then
        echo "WARNING: /usr/local/bin is not in your PATH."
    fi

else
    echo "Installing locally to ~/.local/bin"
    echo ""

    HOME_CONFIG_FILENAME="${HOME}/.multi"
    USER_BIN="${HOME}/.local/bin"
    INSTALLED_EXECUTABLE="${USER_BIN}/${EXECUTABLE}"

    # Create ~/.local/bin if it doesn't exist
    mkdir -p "$USER_BIN"

    # Install the default config file in the user's home directory
    if [[ ! -f $HOME_CONFIG_FILENAME ]]; then
        echo "Copying default config to $HOME_CONFIG_FILENAME"
        cp "${INSTALL_SCRIPT_DIR}/$DEFAULT_CONFIG_FILENAME" "$HOME_CONFIG_FILENAME"
    elif [[ -f $HOME_CONFIG_FILENAME ]]; then
        echo "WARN: $HOME_CONFIG_FILENAME already exists. Not overwriting."
    fi

    # Install executable in ~/.local/bin
    if [[ ! -f $INSTALLED_EXECUTABLE ]]; then
        echo "Installing $EXECUTABLE to $INSTALLED_EXECUTABLE"
        cp "$EXECUTABLE_SOURCE" "$INSTALLED_EXECUTABLE"
        chmod +x "$INSTALLED_EXECUTABLE"
    elif [[ -f $INSTALLED_EXECUTABLE ]]; then
        echo "WARN: $INSTALLED_EXECUTABLE already exists. Not overwriting."
    fi

    if [[ ":$PATH:" != *":$USER_BIN:"* ]]; then
        echo "WARNING: $USER_BIN is not in your PATH."
    fi
fi