This script automatically mirrors your GitHub starred repositories to a Gitea instance. Features include:

mirror_github_starred_repos.sh

#!/bin/bash

#########################################################################
# GitHub to Gitea Starred Repository Mirror
#
# This script automatically mirrors your GitHub starred repositories to 
# a Gitea instance. Features include:
#
# - Fetches all repositories you've starred on GitHub
# - Checks if repositories already exist in your Gitea instance
# - Creates mirror repositories on Gitea for each starred GitHub repo
# - Sets up automatic mirror synchronization (via Gitea's mirroring feature)
# - Handles pagination for users with many starred repositories
# - Preserves repository metadata (descriptions, etc.)
# - Skip existing repositories to avoid duplicates
#
# Requirements:
# - GitHub Personal Access Token with appropriate permissions
# - Gitea Access Token with repo creation rights
# - curl, jq installed on your system
#########################################################################

# Configuration
GITHUB_TOKEN="GITHUB_PAT"
GITEA_TOKEN="GITEA_TOKEN"
GITEA_URL="GITEA_URL"
GITEA_USER="GITEA_USER"
GITHUB_USER="GITHUB_USER"
TEMP_DIR="/tmp/github_mirror"

# Create temp directory if it doesn't exist
mkdir -p "$TEMP_DIR"

# Fetch all existing repositories from Gitea
echo "Fetching existing Gitea repositories..."
existing_repos=$(curl -s -H "Authorization: token $GITEA_TOKEN" "$GITEA_URL/api/v1/user/repos" | grep -o '"name":"[^"]*' | cut -d'"' -f4)

# Get list of starred repositories from GitHub
echo "Fetching starred repositories from GitHub..."
page=1
starred_repos=()

while true; do
    starred_page=$(curl -s -H "Authorization: token $GITHUB_TOKEN" -H "Accept: application/vnd.github.v3+json" \
        "https://api.github.com/users/$GITHUB_USER/starred?per_page=100&page=$page")
    
    # Check if we received empty response
    if [ "$(echo "$starred_page" | jq '. | length')" = "0" ]; then
        break
    fi
    
    # Extract repo details and add to array
    while read -r repo; do
        repo_name=$(echo "$repo" | jq -r '.name')
        repo_url=$(echo "$repo" | jq -r '.clone_url')
        repo_description=$(echo "$repo" | jq -r '.description // ""')
        repo_owner=$(echo "$repo" | jq -r '.owner.login')
        
        starred_repos+=("$repo_name|$repo_url|$repo_description|$repo_owner")
    done < <(echo "$starred_page" | jq -c '.[]')
    
    page=$((page + 1))
done

echo "Found ${#starred_repos[@]} starred repositories on GitHub"

# Process each starred repository
for repo_info in "${starred_repos[@]}"; do
    IFS='|' read -r name url description owner <<< "$repo_info"
    
    # Skip if repo already exists in Gitea
    if echo "$existing_repos" | grep -q "^$name$"; then
        echo "Skipping $name: already exists in Gitea"
        continue
    fi
    
    echo "Processing $owner/$name..."
    
    # Create mirror repo on Gitea using migration API
    create_response=$(curl -s -X POST \
        -H "Content-Type: application/json" \
        -H "Authorization: token $GITEA_TOKEN" \
        -d "{
            \"clone_addr\": \"$url\",
            \"repo_name\": \"$name\",
            \"description\": \"Mirror of $owner/$name: $description\",
            \"mirror\": true,
            \"private\": false,
            \"auth_username\": \"$GITHUB_USER\",
            \"auth_token\": \"$GITHUB_TOKEN\"
        }" \
        "$GITEA_URL/api/v1/repos/migrate")
    
    gitea_repo_url=$(echo "$create_response" | jq -r '.clone_url')
    
    if [ -z "$gitea_repo_url" ] || [ "$gitea_repo_url" = "null" ]; then
        echo "Error creating Gitea mirror for $name"
        echo "$create_response"
        continue
    fi
    
    echo "Successfully set up mirroring for $owner/$name to Gitea"
done

# No need for temporary cloning with this approach
echo "Mirroring process completed!"