🌋 ZIP Forge

A tiny, formatter-friendly Java DSL for creating ZIP files.

✨ Features

🤏 Tiny

The ZIP Forge API consists of only 3 methods.

📋 Formatter-friendly

Applying a code formatter like palantir-java-format will not mess up ZIP Forge's indentation.

📦 No external dependencies

ZIP Forge is based on Java's ZIP File System Provider and requires no external dependencies.

🧩 Modular

ZIP Forge is published as a Java 9 module but compatible with Java 8.

🛠️ Installation

Maven

<dependency>
    <groupId>io.github.helpermethod</groupId>
    <artifactId>zip-forge</artifactId>
    <version>1.0.0</version>
</dependency>

Gradle

implementation 'io.github.helpermethod:zip-forge:1.0.0'

Gradle (Kotlin)

implementation("io.github.helpermethod:zip-forge:1.0.0")

🔍 Usage

Java

The following code snippet calls createZipFile to create the ZIP file at the given location. It uses the file and directory methods to create files and directories within the context of the ZIP file.

⚠️ file and directory should never be used outside of createZipFile's or directory's context.

import java.nio.charset.StandardCharsets;

import static io.github.helpermethod.zipforge.ZipForge.createZipFile;
import static io.github.helpermethod.zipforge.ZipForge.file;
import static io.github.helpermethod.zipforge.ZipForge.directory;
import static java.nio.charset.StandardCharsets.UTF_8;

class ZipForgeDemo {
    public static void main(String[] args) throws IOException {
        // creates a ZIP file named demo.zip in the /home/helpermethod directory
        createZipFile(Paths.get("/home/helpermethod/demo.zip"), () -> {
            // the file content can be specified as a String...
            file("a.txt", "a");
            directory("d", () -> {
                // ... or a byte[]...
                file("b.txt", "b".getBytes(UTF_8));
                // ... or a Path
                file("c.bin", Paths.get("c.bin"));
                // directories can be nested
                directory("e", () -> {
                    file("f.txt", "f");
                });
            });
        });
    }
}

The above code results in a ZIP file with the following structure.

Archive:  demo.zip
  Length      Date    Time    Name
---------  ---------- -----   ----
        0  07-11-2023 15:39   d/
        0  07-11-2023 15:39   d/e/
        1  07-11-2023 15:39   a.txt
        1  07-11-2023 15:39   d/b.txt
        1  07-11-2023 15:39   d/c.bin
        1  07-11-2023 15:39   d/e/f.txt
---------                     -------
        4                     6 files

Kotlin

The same example written in Kotlin. It uses the same API as the Java version.

import io.github.helpermethod.zipforge.ZipForge.createZipFile
import io.github.helpermethod.zipforge.ZipForge.directory
import io.github.helpermethod.zipforge.ZipForge.file
import kotlin.io.path.Path

fun main() {
    createZipFile(Path("/home/helpermethod/demo.zip")) {
        file("a.txt", "a")
        directory("d") {
            file("b.txt", "b".toByteArray())
            file("c.bin", Path("c.bin"))
            directory("e") {
                file("f.txt", "f")
            }
        }
    }
}