Java06. ДЗ 02, Горячева Валерия

lgit/Readme.md

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+# LGit
+
+### Description
+
+This repository contains simple draft of **git**.
+
+### Usage
+
+The following commands are available:<br/>
+```
+init
+add <files>
+rm <files>
+status
+commit <message> <files>
+reset <to_revision>
+log [from_revision]
+checkout <revision>
+checkout -r <files>
+```
+
+where *&lt;smth&gt;* means mandatory argument while *[smth]* 
+implies he optional one.<br/>
+*revision* is represented as short (at least 7 symbols) or entire hash code.<br/>
+*checkout -r <files>* is the replacement of *checkout -- <files>*.<br/>
+
+### File hierarchy
+
+    .l_git/
+        logs/
+            [log_file_for_branch]
+        storage/
+            [dir_as_hashcode]
+                [file]
+        index/
+            [file]
+         HEAD - file with information about current state
+
+
+### How to build and run
+
+In order to run this app, follow this steps:
+
+* clone this repository 
+* checkout on branch *git_milestone_2*
+* run `./gradlew installDist`
+* go to the `./build/install/l_git/bin/`
+* execute `l_git` (or `l_git.bat` on Windows)

lgit/build.gradle

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+group 'ru.ifmo'
+version '1.0-SNAPSHOT'
+
+apply plugin: 'java'
+apply plugin: 'application'
+
+mainClassName = "ru.ifmo.git.LGit"
+
+sourceCompatibility = 1.8
+
+repositories {
+    mavenCentral()
+}
+
+dependencies {
+    testCompile group: 'junit', name: 'junit', version: '4.12'
+    compile group: 'net.sourceforge.argparse4j', name: 'argparse4j', version: '0.2.0'
+    compile group: 'org.apache.commons', name: 'commons-io', version: '1.3.2'
+    implementation 'com.google.code.gson:gson:2.8.5'
+    compile group: 'commons-codec', name: 'commons-codec', version: '1.11'
+    compile group: 'info.picocli', name: 'picocli', version: '3.6.0'
+}

lgit/gradle/wrapper/gradle-wrapper.properties

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+#Mon Oct 15 04:46:20 MSK 2018
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.0-all.zip

lgit/settings.gradle

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+rootProject.name = 'l_git'
+

lgit/src/main/java/ru/ifmo/git/LGit.java

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+package ru.ifmo.git;
+
+import picocli.CommandLine;
+
+import java.nio.file.Path;
+import java.nio.file.Paths;
+
+import java.util.List;
+
+import ru.ifmo.git.commands.Git;
+import ru.ifmo.git.entities.GitManager;
+import ru.ifmo.git.util.CommandResult;
+
+public class LGit {
+
+    private static Path cwd() {
+        return Paths.get(System.getProperty("user.dir"));
+    }
+
+    public static void main(String[] args) {
+        CommandLine commandLine = new CommandLine(new Git());
+        try {
+            List<CommandLine> parsed = commandLine.parse(args);
+
+            if (parsed.size() == 2) {
+                CommandLine command = parsed.get(1);
+                GitManager manager = new GitManager(cwd());
+                if (command.isUsageHelpRequested()) {
+                    command.usage(System.out);
+                    return;
+                }
+                CommandResult result = manager.executeCommand(command);
+                result.print();
+            } else {
+                commandLine.usage(System.out);
+            }
+        } catch (CommandLine.UnmatchedArgumentException e) {
+            System.out.println("l_git: no such command. See 'l_git --help'.");
+        }
+    }
+
+}