92 lines
4.1 KiB
Java
92 lines
4.1 KiB
Java
import java.util.*;
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// A program to work with Mini-Git. Manages the state of repositories and allows for all
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// operations defined in Mini-Git.
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public class Client {
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private static List<String> ops = new ArrayList<>();
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public static void main(String[] args) {
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Collections.addAll(ops, "create", "head", "history", "commit", "drop",
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"synchronize", "quit");
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Scanner console = new Scanner(System.in);
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Map<String, Repository> repos = new HashMap<>();
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String op = "";
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String name = "";
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intro();
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while (!op.equalsIgnoreCase("quit")) {
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System.out.println("Available repositories: ");
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for (Repository repo : repos.values()) {
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System.out.println("\t" + repo);
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}
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System.out.println("Operations: " + ops);
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System.out.print("Enter operation and repository: ");
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String[] input = console.nextLine().split("\\s+");
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op = input[0];
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name = input.length > 1 ? input[1] : "";
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while (!ops.contains(op) || (!op.equalsIgnoreCase("create") &&
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!op.equalsIgnoreCase("quit") &&
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!repos.containsKey(name))) {
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System.out.println(" **ERROR**: Operation or repository not recognized.");
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System.out.print("Enter operation and repository: ");
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input = console.nextLine().split("\\s+");
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op = input[0];
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name = input.length > 1 ? input[1] : "";
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}
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Repository currRepo = repos.get(name);
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op = op.toLowerCase();
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if (op.equalsIgnoreCase("create")) {
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if (currRepo != null) {
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System.out.println(" **ERROR**: Repository with that name already exists.");
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} else {
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Repository newRepo = new Repository(name);
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repos.put(name, newRepo);
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System.out.println(" New repository created: " + newRepo);
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}
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} else if (op.equalsIgnoreCase("head")) {
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System.out.println(currRepo.getRepoHead());
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} else if (op.equalsIgnoreCase("history")) {
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System.out.print("How many commits back? ");
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int nHist = console.nextInt();
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console.nextLine();
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System.out.println(currRepo.getHistory(nHist));
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} else if (op.equalsIgnoreCase("commit")) {
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System.out.print("Enter commit message: ");
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String message = console.nextLine();
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System.out.println(" New commit: " + currRepo.commit(message));
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} else if (op.equalsIgnoreCase("drop")) {
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System.out.print("Enter ID to drop: ");
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String idDrop = console.nextLine();
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if (currRepo.drop(idDrop)) {
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System.out.println(" Successfully dropped " + idDrop);
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} else {
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System.out.println(" No commit dropped!");
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}
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} else if (op.equalsIgnoreCase("synchronize")) {
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System.out.print("Which repository would you like to " +
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"synchronize into the given one? ");
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String repo = console.nextLine();
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if (repo.equals(name)) {
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System.out.println("Cannot synchronize the same repositories!");
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} else if (!repos.containsKey(repo)) {
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System.out.println("Repository does not exist!");
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} else {
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currRepo.synchronize(repos.get(repo));
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}
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}
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System.out.println();
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}
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}
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// Prints out an introduction to the Mini-Git test client.
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public static void intro() {
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System.out.println("Welcome to the Mini-Git test client!");
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System.out.println("Use this program to test your Mini-Git repository implemenation.");
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System.out.println("Make sure to test all operations in all cases --");
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System.out.println("some cases are particularly tricky.");
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System.out.println();
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}
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}
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