GithubIssueCloner.kt

GithubIssueCloner.kt

import com.fasterxml.jackson.core.JsonFactory
import com.fasterxml.jackson.databind.ObjectMapper
import com.fasterxml.jackson.databind.node.ObjectNode
import java.io.BufferedReader
import java.io.File
import java.io.InputStreamReader
import java.util.stream.Collectors

object GithubIssueCloner {

    @JvmStatic
    fun main(args: Array<String>) {
        val fromOrg = ""
        val fromRepo = ""
        val toOrg = ""
        val toRepo = ""
        val personalAccessToken = ""
        val mapper = ObjectMapper(JsonFactory())
        val writer = mapper.writerWithDefaultPrettyPrinter()
        val file = File("./issues.json")
        val data = run("curl -X \"GET\" \"https://api.github.com/repos/$fromOrg/$fromRepo/issues?state=all&per_page=100&page=1\"")
        file.writeText(data)
        val input = File("./issue.json")
        val tree = mapper.readTree(file)
        tree.forEach {
            if (it is ObjectNode) {
                it.remove("assignee")
                it.remove("assignees")
                val milestone = it.get("milestone")
                if (milestone != null && !milestone.isNull) {
                    it.remove("milestone")
                }
            }
            writer.writeValue(input, it)
            run("curl -X \"POST\" \"https://api.github.com/repos/$toOrg/$toRepo/issues\" -H \"Cookie: logged_in=no\" -H \"Authorization: token $personalAccessToken\" -H \"Content-Type: text/plain; charset=utf-8\" -d @issue.json")
        }
    }

    fun run(command: String): String {
        val pr = Runtime.getRuntime().exec(command)
        val result = BufferedReader(
            InputStreamReader(pr.inputStream))
            .lines()
            .collect(Collectors.joining("\n"))
        return result.toString()
    }
}