Transfer issues from Gitea to Github

issues-gitea-to-github.sh

#!/bin/bash

# Configuration
GITEA_REPO="username/repository"
GITEA_API_TOKEN="your_gitea_api_token"
GITHUB_REPO="username/repository"
GITHUB_API_TOKEN="your_github_api_token"
GITEA_API_URL="https://your_gitea_instance/api/v1"
GITHUB_API_URL="https://api.github.com"
ISSUE_FILE="gitea_issues.json"

# Check and Export Issues from Gitea
export_gitea_issues() {
    if [[ -f "$ISSUE_FILE" ]]; then
        read -p "Existing issue file found. Use it (y) or create a new one (n)? " choice
        case "$choice" in 
          y|Y ) echo "Using existing file.";;
          n|N ) rm "$ISSUE_FILE"; fetch_issues;;
          * ) echo "Invalid response."; exit 1;;
        esac
    else
        fetch_issues
    fi
}

fetch_issues() {
    curl -H "Authorization: token ${GITEA_API_TOKEN}" \
         -H "Content-Type: application/json" \
         "${GITEA_API_URL}/repos/${GITEA_REPO}/issues" > "$ISSUE_FILE"
}

# Import Issues to GitHub and Update JSON
import_to_github() {
    local temp_file="temp_$ISSUE_FILE"
    jq -c '.[]' "$ISSUE_FILE" | while read i; do
        title=$(echo $i | jq -r '.title')
        body=$(echo $i | jq -r '.body')
        labels=$(echo $i | jq -r '.labels | map(.name) | @csv' | sed 's/"//g' | sed 's/,/", "/g')
        labels="[\"$labels\"]"
        
        # Import to GitHub
        response=$(curl -H "Authorization: token ${GITHUB_API_TOKEN}" \
                       -H "Content-Type: application/json" \
                       -d "{\"title\":\"${title}\",\"body\":\"${body}\",\"labels\":$labels}" \
                       "${GITHUB_API_URL}/repos/${GITHUB_REPO}/issues")

        # Check if the issue was successfully created
        if echo "$response" | jq -e .id >/dev/null 2>&1; then
            # Remove the imported issue from the original JSON
            jq "del(.[] | select(.title == \"$title\"))" "$ISSUE_FILE" > "$temp_file" && mv "$temp_file" "$ISSUE_FILE"
        else
            echo "Failed to import issue: $title"
        fi

        sleep 2 # To prevent hitting API rate limits
    done
}

# Execute Functions
export_gitea_issues
import_to_github