writeBuildpackContent() — spring-boot Function Reference

Source Code

build-plugin/spring-boot-gradle-plugin/src/dockerTest/java/org/springframework/boot/gradle/tasks/bundling/BootBuildImageIntegrationTests.java lines 617–651

	private void writeBuildpackContent() throws IOException {
		FileAttribute<Set<PosixFilePermission>> dirAttribute = PosixFilePermissions
			.asFileAttribute(PosixFilePermissions.fromString("rwxr-xr-x"));
		FileAttribute<Set<PosixFilePermission>> execFileAttribute = PosixFilePermissions
			.asFileAttribute(PosixFilePermissions.fromString("rwxrwxrwx"));
		File buildpackDir = new File(this.gradleBuild.getProjectDir(), "buildpack/hello-world");
		Files.createDirectories(buildpackDir.toPath(), dirAttribute);
		File binDir = new File(buildpackDir, "bin");
		Files.createDirectories(binDir.toPath(), dirAttribute);
		File descriptor = new File(buildpackDir, "buildpack.toml");
		try (PrintWriter writer = new PrintWriter(new FileWriter(descriptor))) {
			writer.println("api = \"0.10\"");
			writer.println("[buildpack]");
			writer.println("id = \"example/hello-world\"");
			writer.println("version = \"0.0.1\"");
			writer.println("name = \"Hello World Buildpack\"");
			writer.println("homepage = \"https://github.com/buildpacks/samples/tree/main/buildpacks/hello-world\"");
			writer.println("[[stacks]]\n");
			writer.println("id = \"*\"");
		}
		File detect = Files.createFile(Paths.get(binDir.getAbsolutePath(), "detect"), execFileAttribute).toFile();
		try (PrintWriter writer = new PrintWriter(new FileWriter(detect))) {
			writer.println("#!/usr/bin/env bash");
			writer.println("set -eo pipefail");
			writer.println("exit 0");
		}
		File build = Files.createFile(Paths.get(binDir.getAbsolutePath(), "build"), execFileAttribute).toFile();
		try (PrintWriter writer = new PrintWriter(new FileWriter(build))) {
			writer.println("#!/usr/bin/env bash");
			writer.println("set -eo pipefail");
			writer.println("echo \"---> Hello World buildpack\"");
			writer.println("echo \"---> done\"");
			writer.println("exit 0");
		}
	}