diff --git a/picocli/pom.xml b/picocli/pom.xml new file mode 100644 index 0000000000..0334f5463d --- /dev/null +++ b/picocli/pom.xml @@ -0,0 +1,28 @@ + + + 4.0.0 + + com.baeldung + parent-java + 0.0.1-SNAPSHOT + ../parent-java + + + picocli + + + + info.picocli + picocli + 3.9.6 + + + + org.springframework.boot + spring-boot-starter + 2.1.4.RELEASE + + + \ No newline at end of file diff --git a/picocli/src/main/java/com/baeldung/picocli/git/Application.java b/picocli/src/main/java/com/baeldung/picocli/git/Application.java new file mode 100644 index 0000000000..04af524e45 --- /dev/null +++ b/picocli/src/main/java/com/baeldung/picocli/git/Application.java @@ -0,0 +1,41 @@ +package com.baeldung.picocli.git; + +import com.baeldung.picocli.git.commands.programmative.GitCommand; +import com.baeldung.picocli.git.commands.subcommands.GitAddCommand; +import com.baeldung.picocli.git.commands.subcommands.GitCommitCommand; +import com.baeldung.picocli.git.commands.subcommands.GitConfigCommand; +import org.springframework.beans.factory.annotation.Autowired; +import org.springframework.boot.CommandLineRunner; +import org.springframework.boot.SpringApplication; +import org.springframework.boot.autoconfigure.SpringBootApplication; +import picocli.CommandLine; + +@SpringBootApplication +public class Application implements CommandLineRunner { + public static void main(String[] args) { + SpringApplication.run(Application.class, args); + } + + private GitCommand gitCommand; + private GitAddCommand addCommand; + private GitCommitCommand commitCommand; + private GitConfigCommand configCommand; + + @Autowired + public Application(GitCommand gitCommand, GitAddCommand addCommand, GitCommitCommand commitCommand, GitConfigCommand configCommand) { + this.gitCommand = gitCommand; + this.addCommand = addCommand; + this.commitCommand = commitCommand; + this.configCommand = configCommand; + } + + @Override + public void run(String... args) { + CommandLine commandLine = new CommandLine(gitCommand); + commandLine.addSubcommand("add", addCommand); + commandLine.addSubcommand("commit", commitCommand); + commandLine.addSubcommand("config", configCommand); + + commandLine.parseWithHandler(new CommandLine.RunLast(), args); + } +} diff --git a/picocli/src/main/java/com/baeldung/picocli/git/commands/declarative/GitCommand.java b/picocli/src/main/java/com/baeldung/picocli/git/commands/declarative/GitCommand.java new file mode 100644 index 0000000000..f3c690a3e6 --- /dev/null +++ b/picocli/src/main/java/com/baeldung/picocli/git/commands/declarative/GitCommand.java @@ -0,0 +1,32 @@ +package com.baeldung.picocli.git.commands.declarative; + +import com.baeldung.picocli.git.model.ConfigElement; +import com.baeldung.picocli.git.commands.subcommands.GitAddCommand; +import com.baeldung.picocli.git.commands.subcommands.GitCommitCommand; +import com.baeldung.picocli.git.commands.subcommands.GitConfigCommand; +import picocli.CommandLine; + +import static picocli.CommandLine.*; +import static picocli.CommandLine.Command; + +@Command( + name = "git", + subcommands = { + GitAddCommand.class, + GitCommitCommand.class, + GitConfigCommand.class + } +) +public class GitCommand implements Runnable { + public static void main(String[] args) { + CommandLine commandLine = new CommandLine(new GitCommand()); + commandLine.registerConverter(ConfigElement.class, ConfigElement::from); + + commandLine.parseWithHandler(new RunLast(), args); + } + + @Override + public void run() { + System.out.println("The popular git command"); + } +} diff --git a/picocli/src/main/java/com/baeldung/picocli/git/commands/methods/GitCommand.java b/picocli/src/main/java/com/baeldung/picocli/git/commands/methods/GitCommand.java new file mode 100644 index 0000000000..2c3e440b8b --- /dev/null +++ b/picocli/src/main/java/com/baeldung/picocli/git/commands/methods/GitCommand.java @@ -0,0 +1,27 @@ +package com.baeldung.picocli.git.commands.methods; + +import picocli.CommandLine; + +import static picocli.CommandLine.Command; + +@Command(name = "git") +public class GitCommand implements Runnable { + public static void main(String[] args) { + CommandLine.run(new GitCommand(), args); + } + + @Override + public void run() { + System.out.println("The popular git command"); + } + + @Command(name = "add") + public void addCommand() { + System.out.println("Adding some files to the staging area"); + } + + @Command(name = "commit") + public void commitCommand() { + System.out.println("Committing files in the staging area, how wonderful?"); + } +} diff --git a/picocli/src/main/java/com/baeldung/picocli/git/commands/programmative/GitCommand.java b/picocli/src/main/java/com/baeldung/picocli/git/commands/programmative/GitCommand.java new file mode 100644 index 0000000000..81ecfd78be --- /dev/null +++ b/picocli/src/main/java/com/baeldung/picocli/git/commands/programmative/GitCommand.java @@ -0,0 +1,26 @@ +package com.baeldung.picocli.git.commands.programmative; + +import com.baeldung.picocli.git.commands.subcommands.GitAddCommand; +import com.baeldung.picocli.git.commands.subcommands.GitCommitCommand; +import org.springframework.stereotype.Component; +import picocli.CommandLine; + +import static picocli.CommandLine.Command; +import static picocli.CommandLine.RunLast; + +@Command(name = "git") +@Component +public class GitCommand implements Runnable { + public static void main(String[] args) { + CommandLine commandLine = new CommandLine(new GitCommand()); + commandLine.addSubcommand("add", new GitAddCommand()); + commandLine.addSubcommand("commit", new GitCommitCommand()); + + commandLine.parseWithHandler(new RunLast(), args); + } + + @Override + public void run() { + System.out.println("The popular git command"); + } +} diff --git a/picocli/src/main/java/com/baeldung/picocli/git/commands/subcommands/GitAddCommand.java b/picocli/src/main/java/com/baeldung/picocli/git/commands/subcommands/GitAddCommand.java new file mode 100644 index 0000000000..803cd8dc7d --- /dev/null +++ b/picocli/src/main/java/com/baeldung/picocli/git/commands/subcommands/GitAddCommand.java @@ -0,0 +1,31 @@ +package com.baeldung.picocli.git.commands.subcommands; + +import org.springframework.stereotype.Component; + +import java.nio.file.Path; +import java.util.List; + +import static picocli.CommandLine.*; + +@Command( + name = "add" +) +@Component +public class GitAddCommand implements Runnable { + @Option(names = "-A") + private boolean allFiles; + + @Parameters(index = "0..*") + private List files; + + @Override + public void run() { + if (allFiles) { + System.out.println("Adding all files to the staging area"); + } + + if (files != null) { + files.forEach(path -> System.out.println("Adding " + path + " to the staging area")); + } + } +} diff --git a/picocli/src/main/java/com/baeldung/picocli/git/commands/subcommands/GitCommitCommand.java b/picocli/src/main/java/com/baeldung/picocli/git/commands/subcommands/GitCommitCommand.java new file mode 100644 index 0000000000..df4928983c --- /dev/null +++ b/picocli/src/main/java/com/baeldung/picocli/git/commands/subcommands/GitCommitCommand.java @@ -0,0 +1,26 @@ +package com.baeldung.picocli.git.commands.subcommands; + +import org.springframework.stereotype.Component; + +import static picocli.CommandLine.Command; +import static picocli.CommandLine.Option; + +@Command( + name = "commit" +) +@Component +public class GitCommitCommand implements Runnable { + @Option(names = {"-m", "--message"}, required = true) + private String[] messages; + + @Override + public void run() { + System.out.println("Committing files in the staging area, how wonderful?"); + if (messages != null) { + System.out.println("The commit message is"); + for (String message : messages) { + System.out.println(message); + } + } + } +} diff --git a/picocli/src/main/java/com/baeldung/picocli/git/commands/subcommands/GitConfigCommand.java b/picocli/src/main/java/com/baeldung/picocli/git/commands/subcommands/GitConfigCommand.java new file mode 100644 index 0000000000..80e14c0121 --- /dev/null +++ b/picocli/src/main/java/com/baeldung/picocli/git/commands/subcommands/GitConfigCommand.java @@ -0,0 +1,24 @@ +package com.baeldung.picocli.git.commands.subcommands; + +import com.baeldung.picocli.git.model.ConfigElement; +import org.springframework.stereotype.Component; + +import static picocli.CommandLine.Command; +import static picocli.CommandLine.Parameters; + +@Command( + name = "config" +) +@Component +public class GitConfigCommand implements Runnable { + @Parameters(index = "0") + private ConfigElement element; + + @Parameters(index = "1") + private String value; + + @Override + public void run() { + System.out.println("Setting " + element.value() + " to " + value); + } +} diff --git a/picocli/src/main/java/com/baeldung/picocli/git/model/ConfigElement.java b/picocli/src/main/java/com/baeldung/picocli/git/model/ConfigElement.java new file mode 100644 index 0000000000..edc6573d88 --- /dev/null +++ b/picocli/src/main/java/com/baeldung/picocli/git/model/ConfigElement.java @@ -0,0 +1,25 @@ +package com.baeldung.picocli.git.model; + +import java.util.Arrays; + +public enum ConfigElement { + USERNAME("user.name"), + EMAIL("user.email"); + + private final String value; + + ConfigElement(String value) { + this.value = value; + } + + public String value() { + return value; + } + + public static ConfigElement from(String value) { + return Arrays.stream(values()) + .filter(element -> element.value.equals(value)) + .findFirst() + .orElseThrow(() -> new IllegalArgumentException("The argument " + value + " doesn't match any ConfigElement")); + } +} diff --git a/picocli/src/main/java/com/baeldung/picocli/helloworld/HelloWorldCommand.java b/picocli/src/main/java/com/baeldung/picocli/helloworld/HelloWorldCommand.java new file mode 100644 index 0000000000..97a861e2f0 --- /dev/null +++ b/picocli/src/main/java/com/baeldung/picocli/helloworld/HelloWorldCommand.java @@ -0,0 +1,20 @@ +package com.baeldung.picocli.helloworld; + +import picocli.CommandLine; + +import static picocli.CommandLine.Command; + +@Command( + name = "hello", + description = "Says hello" +) +public class HelloWorldCommand implements Runnable { + public static void main(String[] args) { + CommandLine.run(new HelloWorldCommand(), args); + } + + @Override + public void run() { + System.out.println("Hello World!"); + } +} diff --git a/pom.xml b/pom.xml index efd7f60d2e..17ab605e7a 100644 --- a/pom.xml +++ b/pom.xml @@ -12,6 +12,7 @@ lombok-custom + picocli