scripts/download_third_party_libraries.sh

download_third_party_libraries.sh

#!/bin/bash

# Define the base directory for downloads relative to the script's location.
DOWNLOAD_DIR="../assets/thirdparty"

# Ensure DOWNLOAD_DIR is correctly set and not empty or root.
if [ -z "$DOWNLOAD_DIR" ] || [ "$DOWNLOAD_DIR" = "/" ]; then
    echo "Error: DOWNLOAD_DIR is not set correctly."
    exit 1
fi

# Associative arrays for storing libraries' information, versions, and additional resources.
declare -A libraries=(
    ["bootstrap-table:css"]="https://cdn.jsdelivr.net/npm/bootstrap-table@{version}/dist/bootstrap-table.min.css"
    ["chartjs:js"]="https://cdn.jsdelivr.net/npm/chart.js@{version}/dist/chart.min.js"
    ["d3:js"]="https://unpkg.com/d3@{version}/dist/d3.min.js"
    ["diff2html:css"]="https://cdn.jsdelivr.net/npm/diff2html@{version}/bundles/css/diff2html.min.css"
    ["echarts:js"]="https://cdn.jsdelivr.net/npm/echarts@{version}/dist/echarts.min.js"
    ["highlightjs:css"]="https://cdn.jsdelivr.net/npm/highlight.js@{version}/styles/default.min.css"
    ["imagesloaded:js"]="https://cdn.jsdelivr.net/npm/imagesloaded@{version}/imagesloaded.pkgd.min.js"
    ["img-comparison-slider:css"]="https://cdn.jsdelivr.net/npm/img-comparison-slider@{version}/dist/styles.min.css"
    ["jquery:js"]="https://cdn.jsdelivr.net/npm/jquery@{version}/dist/jquery.min.js"
    ["leaflet:css"]="https://cdn.jsdelivr.net/npm/leaflet@{version}/dist/leaflet.css"
    ["leaflet:js"]="https://cdn.jsdelivr.net/npm/leaflet@{version}/dist/leaflet.js"
    ["mathjax:js"]="https://cdn.jsdelivr.net/npm/mathjax@{version}/es5/tex-mml-chtml.js"
    ["masonry:js"]="https://cdn.jsdelivr.net/npm/masonry-layout@{version}/dist/masonry.pkgd.min.js"
    ["mdb:css"]="https://cdn.jsdelivr.net/npm/mdbootstrap@{version}/css/mdb.min.css"
    ["mdb:js"]="https://cdn.jsdelivr.net/npm/mdbootstrap@{version}/js/mdb.min.js"
    ["medium_zoom:js"]="https://cdn.jsdelivr.net/npm/medium-zoom@{version}/dist/medium-zoom.min.js"
    ["mermaid:js"]="https://cdn.jsdelivr.net/npm/mermaid@{version}/dist/mermaid.min.js"
    ["swiper:css"]="https://cdn.jsdelivr.net/npm/swiper@{version}/swiper-bundle.min.css"
    ["vega:js"]="https://cdn.jsdelivr.net/npm/vega@{version}/build/vega.min.js"
    ["vega-embed:js"]="https://cdn.jsdelivr.net/npm/vega-embed@{version}/build/vega-embed.min.js"
    ["vega-lite:js"]="https://cdn.jsdelivr.net/npm/vega-lite@{version}/build/vega-lite.min.js"
    ["highlightjs:css_github"]="https://cdn.jsdelivr.net/npm/highlight.js@{version}/styles/github.min.css"
    ["highlightjs:css_github_dark"]="https://cdn.jsdelivr.net/npm/highlight.js@{version}/styles/github-dark.min.css"
    ["diff2html:js"]="https://cdn.jsdelivr.net/npm/diff2html@{version}/bundles/js/diff2html-ui.min.js"
    ["echarts:js_theme_dark_fresh_cut"]="https://cdn.jsdelivr.net/npm/echarts@{version}/theme/dark-fresh-cut.js"
    ["img-comparison-slider:js"]="https://cdn.jsdelivr.net/npm/img-comparison-slider@{version}/dist/index.min.js"
    ["swiper:js"]="https://cdn.jsdelivr.net/npm/swiper@{version}/swiper-element-bundle.min.js"
    ["chartjs:js_umd"]="https://cdn.jsdelivr.net/npm/chart.js@{version}/dist/chart.umd.min.js"
)

declare -A versions=(
    ["bootstrap-table"]="1.22.1"
    ["chartjs"]="4.4.1"
    ["d3"]="7.8.5"
    ["diff2html"]="3.4.47"
    ["echarts"]="5.4.3"
    ["highlightjs"]="11.9.0"
    ["imagesloaded"]="5.0.0"
    ["img-comparison-slider"]="8.0.6"
    ["jquery"]="3.6.0"
    ["leaflet"]="1.9.4"
    ["mathjax"]="3.2.0"
    ["masonry"]="4.2.2"
    ["mdb"]="4.20.0"
    ["medium_zoom"]="1.1.0"
    ["mermaid"]="10.7.0"
    ["swiper"]="11.0.5"
    ["vega"]="5.27.0"
    ["vega-embed"]="6.24.0"
    ["vega-lite"]="5.16.3"
)

# Function to download library files.
download_libraries() {
    for key in "${!libraries[@]}"; do
        local base_library_name=${key%%:*}  # Extracts the base library name.
        local suffix=${key##*:}  # Extracts the suffix (css or js).
        local version=${versions[$base_library_name]}  # Gets the version.
        local url_template=${libraries[$key]}
        local url="${url_template/\{version\}/$version}"  # Replaces {version} placeholder.
        local filename=$(basename "$url")

        echo "Downloading $base_library_name ($suffix) version $version..."
        mkdir -p "$DOWNLOAD_DIR/$base_library_name"
        if wget -q "$url" -O "$DOWNLOAD_DIR/$base_library_name/$filename"; then
            echo "Successfully downloaded $filename"
        else
            echo "Failed to download $base_library_name ($suffix)"
        fi
    done
}

# Function to append .map to URLs if applicable and download the map files.
download_map_files() {
    for key in "${!libraries[@]}"; do
        local base_library_name=${key%%:*}  # Extracts the base library name.
        local version=${versions[$base_library_name]}  # Gets the version.
        local url_template=${libraries[$key]}
        local url="${url_template/\{version\}/$version}"  # Replaces the {version} placeholder.
        local library_dir="$DOWNLOAD_DIR/$base_library_name"

        if [[ $url =~ \.js$ ]]; then
            local js_map_url="${url}.map"  # Assumes .js.map for simplicity
            echo "Attempting to download JS map file for $key from $js_map_url..."
            wget -q "$js_map_url" -P "$library_dir" && echo "Successfully downloaded $(basename "$js_map_url")"
        elif [[ $url =~ \.css$ ]]; then
            local css_map_url="${url}.map"  # Assumes .css.map for CSS files
            echo "Attempting to download CSS map file for $key from $css_map_url..."
            wget -q "$css_map_url" -P "$library_dir" && echo "Successfully downloaded $(basename "$css_map_url")"
        fi
    done
}

# Function to download MathJax fonts.
download_mathjax_fonts() {
    local base_url="https://cdn.jsdelivr.net/npm/mathjax@${versions[mathjax]}/es5/output/chtml/fonts/woff-v2/"
    local font_dir="$DOWNLOAD_DIR/mathjax/output/chtml/fonts/woff-v2"
    mkdir -p "$font_dir"

    # Declare an array of MathJax font files to download.
    declare -a fonts=(
        "MathJax_AMS-Regular.woff"
        "MathJax_Calligraphic-Bold.woff"
        "MathJax_Calligraphic-Regular.woff"
        "MathJax_Fraktur-Bold.woff"
        "MathJax_Fraktur-Regular.woff"
        "MathJax_Main-Bold.woff"
        "MathJax_Main-Italic.woff"
        "MathJax_Main-Regular.woff"
        "MathJax_Math-BoldItalic.woff"
        "MathJax_Math-Italic.woff"
        "MathJax_Math-Regular.woff"
        "MathJax_SansSerif-Bold.woff"
        "MathJax_SansSerif-Italic.woff"
        "MathJax_SansSerif-Regular.woff"
        "MathJax_Script-Regular.woff"
        "MathJax_Size1-Regular.woff"
        "MathJax_Size2-Regular.woff"
        "MathJax_Size3-Regular.woff"
        "MathJax_Size4-Regular.woff"
        "MathJax_Typewriter-Regular.woff"
        "MathJax_Vector-Bold.woff"
        "MathJax_Vector-Regular.woff"
        "MathJax_Zero.woff"
    )

    for font in "${fonts[@]}"; do
        echo "Downloading $font..."
        if wget -q "${base_url}${font}" -O "${font_dir}/${font}"; then
            echo "Successfully downloaded $font"
        else
            echo "Failed to download $font"
        fi
    done
}

# Function to download additional JS scripts with organized structure.
download_additional_scripts() {
    echo "Downloading additional JS scripts..."
    local polyfill_dir="$DOWNLOAD_DIR/js/polyfills"
    mkdir -p "$polyfill_dir"

    local polyfill_url="https://polyfill.io/v3/polyfill.min.js?features=es6"
    echo "Downloading polyfill.min.js with ES6 features..."
    if wget -q "$polyfill_url" -O "$polyfill_dir/polyfill.min.js"; then
        echo "Successfully downloaded polyfill.min.js"
    else
        echo "Failed to download polyfill.min.js"
    fi
}

# Main function to set up the environment and start the download process.
main() {
    echo "Cleaning up the existing 'thirdparty' directory except for 'css' and 'fonts' subdirectories..."
    find "$DOWNLOAD_DIR" -mindepth 1 -not -path "$DOWNLOAD_DIR/css/*" -not -path "$DOWNLOAD_DIR/css" -not -path "$DOWNLOAD_DIR/fonts/*" -not -path "$DOWNLOAD_DIR/fonts" -exec rm -rf {} +

    echo "Setting up download directory at $DOWNLOAD_DIR..."
    mkdir -p "$DOWNLOAD_DIR"
    download_libraries
    download_map_files
    download_mathjax_fonts
    download_additional_scripts
    echo "All downloads completed."
}

# Execute the script.
main