Java06. ДЗ 03, Егоров Антон

README.md

@@ -1 +1,8 @@
-# java_homeworks
+## Мой GIT.
+Пример использования:
+
+```
+
+./mygit commit "добавлен первый файл в репозиторий"
+
+```

hw_git/mygit

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+#!/bin/bash
+
+java -jar target/hw_git-0.0.1-SNAPSHOT.jar "$@"

hw_git/pom.xml

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+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+  <modelVersion>4.0.0</modelVersion>
+
+  <groupId>1</groupId>
+  <artifactId>hw_git</artifactId>
+  <version>0.0.1-SNAPSHOT</version>
+  <packaging>jar</packaging>
+
+  <name>hw_git</name>
+  <url>http://maven.apache.org</url>
+
+  <properties>
+    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+  </properties>
+	 <build>
+	 <plugins>
+	 <plugin>
+	 <artifactId>maven-compiler-plugin</artifactId>
+	 <configuration>
+          <source>1.8</source>
+          <target>1.8</target>
+          <encoding>UTF-8</encoding>
+     </configuration>
+ </plugin>
+ 	  <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-surefire-plugin</artifactId>
+        <version>3.0.0-M1</version>
+      </plugin>
+ <plugin>
+            <groupId>org.apache.maven.plugins</groupId>
+            <artifactId>maven-jar-plugin</artifactId>
+            <version>3.1.0</version>
+            <configuration>
+                <archive>
+                    <manifest>
+                        <addClasspath>true</addClasspath>
+                        <mainClass>hw_git.GitCli</mainClass>
+                        <packageName>hw_git</packageName>
+                        <addClasspath>true</addClasspath>
+                        <classpathPrefix>lib/</classpathPrefix>
+                    </manifest>
+                </archive>
+            </configuration>
+        </plugin>
+        <plugin>
+            <groupId>org.apache.maven.plugins</groupId>
+            <artifactId>maven-dependency-plugin</artifactId>
+            <version>3.1.0</version>
+            <executions>
+                <execution>
+                    <id>copy-dependencies</id>
+                    <phase>package</phase>
+                    <goals>
+                        <goal>copy-dependencies</goal>
+                    </goals>
+                    <configuration>
+                        <includeScope>compile</includeScope>
+                        <outputDirectory>${project.build.directory}/lib</outputDirectory>
+                    </configuration>
+                </execution>
+            </executions>
+        </plugin>
+ </plugins>
+ </build>
+  <dependencies>
+    <!-- https://mvnrepository.com/artifact/junit/junit -->
+	<dependency>
+	    <groupId>junit</groupId>
+	    <artifactId>junit</artifactId>
+	    <version>4.12</version>
+	    <scope>test</scope>
+	</dependency>
+
+
+    <!-- https://mvnrepository.com/artifact/com.fasterxml.jackson.core/jackson-core -->
+	<dependency>
+	    <groupId>com.fasterxml.jackson.core</groupId>
+	    <artifactId>jackson-core</artifactId>
+	    <version>2.9.6</version>
+	</dependency>
+
+    <dependency>
+	  <groupId>com.fasterxml.jackson.core</groupId>
+	  <artifactId>jackson-annotations</artifactId>
+	  <version>2.9.6</version>
+	</dependency>
+
+	<dependency>
+	  <groupId>com.fasterxml.jackson.core</groupId>
+	  <artifactId>jackson-databind</artifactId>
+	  <version>2.9.6</version>
+	</dependency>
+
+	<!-- https://mvnrepository.com/artifact/org.apache.commons/commons-io -->
+	<dependency>
+	    <groupId>org.apache.commons</groupId>
+	    <artifactId>commons-io</artifactId>
+	    <version>1.3.2</version>
+	</dependency>
+  </dependencies>
+</project>

hw_git/src/main/java/hw_git/BranchProblemException.java

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+package hw_git;
+
+public class BranchProblemException extends Exception {
+	String message;
+	public BranchProblemException(String s) {
+		message = s;
+	}
+}

hw_git/src/main/java/hw_git/GitCli.java

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+package hw_git;
+
+import java.io.File;
+import java.io.FileNotFoundException;
+import java.io.IOException;
+import java.nio.file.Path;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Scanner;
+import java.util.stream.Collectors;
+
+import com.fasterxml.jackson.core.JsonGenerationException;
+import com.fasterxml.jackson.databind.JsonMappingException;
+
+public class GitCli {
+	public static void printFile(Path p) {
+		try (Scanner in = new Scanner(new File(p.toString()))) {
+			System.out.println(p.toString());
+			System.out.println("--------------------------------");
+			while (in.hasNextLine()) {
+				System.out.println(in.nextLine());
+			}
+			System.out.println("--------------------------------");
+		} catch (FileNotFoundException e) {
+			System.out.println("File " + p.toString() + " not found");
+		}
+	}
+
+	public static void main(String[] args) throws JsonGenerationException, JsonMappingException {
+		System.out.println(
+				processArgs(args)
+				.stream()
+				.collect(
+						Collectors.joining("\n")
+						)
+				);
+	}
+
+	public static ArrayList<String> processArgs(String[] args) throws JsonGenerationException, JsonMappingException{
+
+		ArrayList<String> res = new ArrayList<>();
+
+		GitCore core = new GitCore();
+		int revision;
+
+		try {
+		switch (args[0]) {
+			case "init":
+				core.makeInit();
+				res.add("Repository initiated.");
+				break;
+			case "add":
+				res.add("Addition...");
+				core.makeAdd(Arrays.copyOfRange(args, 1, args.length));
+				break;
+			case "commit":
+				res.add("Commiting...");
+				core.makeCommit(args[1]);
+				res.add("Commit made at revision " + (core.getCurrentRevision() + 1));
+				break;
+			case "checkout":
+				if (args[1].equals("--")) {
+					res.add("Checking out files...");
+					core.makeCheckout(Arrays.copyOfRange(args, 2, args.length));
+				} else {
+					try {
+						revision = Integer.parseInt(args[1]);
+						res.add("Checkout to revision " + revision);
+						core.makeCheckout(revision - 1);
+						res.add("HEAD detached on revison " + revision);
+					} catch (NumberFormatException e) {
+						res.add("Checking out branch...");
+						core.makeCheckout(args[1]);
+					}
+				}
+				break;
+			case "reset":
+				revision = Integer.parseInt(args[1]);
+				res.add("Performing reset to revision " + revision);
+				core.makeReset(revision - 1);
+				break;
+			case "log":
+				revision = args.length == 2 ? Integer.parseInt(args[1]) : 0;
+				res.add("Log:");
+				res.addAll(core.getLog(revision - 1));
+				break;
+			case "rm":
+				res.add("Removing...");
+				core.makeRM(Arrays.copyOfRange(args, 1, args.length));
+				break;
+			case "status":
+				res.addAll(core.getStatus());
+				break;
+			case "branch":
+				if (args[1].equals("-d")) {
+					res.add("Deleting branch " + args[2]);
+					core.makeDeleteBranch(args[2]);
+				} else {
+					res.add("Making branch " + args[1]);
+					core.makeBranch(args[1]);
+				}
+				break;
+			case "merge":
+				res.add("Merging branch " + args[1] + " to current state."
+						+ "\nYou should make commit then.");
+				res.addAll(core.makeMerge(args[1]));
+				break;
+			default:
+				res.add("Unknown argument: " + args[0]);
+		}
+		} catch (UnversionedException e) {
+			res.add("This directory is not versioned");
+		} catch (BranchProblemException e) {
+			res.add(e.message);
+		} catch (FileNotFoundException e) {
+			res.add(e.getMessage());
+		} catch (IOException e) {
+			res.add("IOException: " + e.getMessage());
+		} catch (ArrayIndexOutOfBoundsException e) {
+			res.add("Lack of arguments");
+		}
+
+		return res;
+	}
+}