Bash script for cloning all GitHub repositories associated with a specific user, provided as an argument.

clone-all-repos-github.sh

#!/bin/bash

# Cloning all GitHub repositories belonging to a specific user provided as an argument.
#
# Command Execution Example:
#   ./clone-all-repos-github.sh <USERNAME>
#
# Arguments:
#   <USERNAME> GitHub username whose repositories will be cloned.
#
# Usage Examples:
#   # Clone all repositories of user "c-neto"
#   $ ./clone-all-repos-github.sh c-neto
#
# Requirements:
#   - jq: https://stedolan.github.io/jq/
#   - git: https://git-scm.com/

set -eu
IFS=$'\n'

# GitHub username whose repositories will be cloned
USERNAME="$1"

# GitHub API URL to get the user's repositories
API_URL_GITHUB_REPO="https://api.github.com/users/$USERNAME/repos"

# Fetch repository URLs using the GitHub API and jq
REPOS_JSON_META=$(curl -s "$API_URL_GITHUB_REPO")

# Extracting repository clone URLs
REPOS_URL=$(jq --raw-output -c ".[].ssh_url" <<< "$REPOS_JSON_META")

# Extracting repository names
REPOS_NAME=$(jq --raw-output -c ".[].name" <<< "$REPOS_JSON_META")

# create a parent directory to clone the user repos
mkdir "$USERNAME" || true
cd "$USERNAME"

# cloning repository asynchronously
for REPO_URL in $REPOS_URL; do
    echo ">>> clone: $REPO_URL"
    git clone "$REPO_URL" &       
done
# waiting for all asynchronous operations to finish
wait

# sync repos asynchronously
for REPO_NAME in $REPOS_NAME; do
    echo ">>> fetch + pull: $REPO_NAME"
    {
      git -C "$REPO_NAME" fetch
      git -C "$REPO_NAME" pull
    } &                                             
done
# waiting for all asynchronous operations to finish
wait