net.oneandone.stool.scm.Git Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of main Show documentation

Stool's main component. Java Library, cli, setup code.

There is a newer version: 4.0.3

/**
 * Copyright 1&1 Internet AG, https://github.com/1and1/
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package net.oneandone.stool.scm;

import net.oneandone.stool.stage.Stage;
import net.oneandone.sushi.fs.file.FileNode;
import net.oneandone.sushi.launcher.Failure;
import net.oneandone.sushi.launcher.Launcher;
import net.oneandone.sushi.util.Strings;

import java.io.IOException;
import java.io.Writer;

public class Git extends Scm {
    public static String gitCheckoutUrlOpt(FileNode dir) throws Failure {
        if (dir.join(".git").isDirectory()) {
            return "git:" + gitCheckoutUrl(dir);
        } else {
            return null;
        }
    }

    private static String gitCheckoutUrl(FileNode checkout) throws Failure {
        return git(checkout, "config", "--get", "remote.origin.url").exec().trim();
    }

    private static Launcher git(FileNode cwd, String... args) {
        Launcher launcher;

        launcher = new Launcher(cwd, "git");
        launcher.arg(args);
        return launcher;
    }

    //--

    public Git() {
        super("git pull");
    }

    @Override
    public void checkout(String url, FileNode dir, Writer dest) throws Failure {
        git(dir.getParent(), "clone", Strings.removeLeft(url, "git:"), dir.getName()).exec(dest);
    }

    @Override
    public boolean isCommitted(Stage stage) throws IOException {
        FileNode checkout;

        checkout = stage.getDirectory();
        try {
            git(checkout, "diff", "--quiet").execNoOutput();
        } catch (Failure e) {
            return false;
        }
        try {
            git(checkout, "diff", "--cached", "--quiet").execNoOutput();
        } catch (Failure e) {
            return false;
        }

        //  TODO: other branches
        try {
            git(checkout, "diff", "@{u}..HEAD", "--quiet").execNoOutput();
        } catch (Failure e) {
            return false;
        }
        return true;
    }
}