aur-mirror

#!/bin/bash
set -e -o pipefail

# Bare-minimum script for searching and cloning AUR packages from the mirror
# Use when AUR is down (e.g., under a DDoS attack) :(
#
# Install a fuzzy finder like fzf or fzy for better search experience
#
# Usage:
#   aur-mirror search
#     Search for a package from AUR (interactive)
#   aur-mirror clone <package_name>
#     Clone the package into <package_name> directory.
#     You can then `cd <package_name>` and run `makepkg`

AUR_MIRROR_URL=${AUR_MIRROR_URL:-https://github.com/archlinux/aur.git}

find_alternatives() {
    for i in "$@"; do
        if command -v "$i" > /dev/null; then
            echo "$i"
            return 0
        fi
    done
    return 1
}

get_branches() {
    git ls-remote "${AUR_MIRROR_URL}" | grep '\srefs/heads/' | sed 's/^.*\srefs\/heads\///'
}

case "$1" in
    search)
        finder=$(find_alternatives fzf fzy less) || {
            echo "Please install a fuzzy finder like fzf or fzy" >&2
            exit 1
        }
        get_branches | "$finder"
        ;;

    clone)
        pkg="$2"
        [ -n "$pkg" ] || {
            echo "Please specify a package name"
            exit 1
        }
        git clone "${AUR_MIRROR_URL}" --branch "$pkg" --single-branch "$pkg"
        ;;

    *)
        echo "Usage: $0 {search|clone <package_name>}" >&2
        exit 1
        ;;
esac