1 files changed, 78 insertions, 0 deletions
diff --git a/modules/nixos/custom/github-mirror/update-mirror.sh b/modules/nixos/custom/github-mirror/update-mirror.sh
new file mode 100755
index 0000000..88ff6eb
--- /dev/null
+++ b/modules/nixos/custom/github-mirror/update-mirror.sh
@@ -0,0 +1,78 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+help() {
+	echo "Mirror a GitHub user's repositories
+
+Usage: $(basename "$0") [options] <user>...
+
+Options:
+  -h --help                         Show this screen
+  -d --directory DIRECTORY          Where to clone repositories (defaults to ./git)"
+}
+
+create_if_not_exists() {
+	if [ ! -d "$1" ]; then
+		mkdir -p "$1"
+	fi
+}
+
+repo_endpoint() {
+	echo "https://api.github.com/users/$1/repos"
+}
+
+users=()
+output_directory="git"
+
+while [ "$#" -gt 0 ]; do
+	case $1 in
+	-h | --help)
+		help
+		exit 0
+		;;
+	-d | --directory)
+		output_directory="$2"
+		shift
+		shift
+		;;
+	-*)
+		echo "error: unknown option $1"
+		help
+		exit 1
+		;;
+	*)
+		users+=("$1")
+		shift
+		;;
+	esac
+done
+
+if [ "${#users[@]}" -lt 1 ]; then
+	echo "error: at least one user must be specified"
+	help
+	exit 1
+fi
+
+create_if_not_exists "$output_directory"
+cd "$output_directory"
+
+for user in "${users[@]}"; do
+	create_if_not_exists "$user"
+
+	url="$(repo_endpoint "$user")"
+	curl --fail --location --show-error --silent "$url" | jq --raw-output '.[].name' | while read -r repo; do
+		repo_path="$user"/"$repo"
+
+		if [ -d "$repo_path" ]; then
+			pushd "$repo_path" &>/dev/null
+			echo "Pulling $repo_path..."
+			if ! git remote update --prune &>/dev/null; then
+				echo "Unable to pull $repo_path! Continuing..."
+			fi
+			popd &>/dev/null
+		else
+			echo "Cloning $repo_path..."
+			git clone --bare --mirror https://github.com/"$repo_path".git "$repo_path" &>/dev/null
+		fi
+	done
+done