From a7ef919a5c813e3a3d8b656f5c5b280aa9dcf5f9 Mon Sep 17 00:00:00 2001
From: Joseph Eng <91924258+KangarooKoala@users.noreply.github.com>
Date: Sun, 2 Apr 2023 21:14:05 -0700
Subject: [PATCH] Print git info

---
 .gitignore                                  |  3 +++
 build.gradle                                | 28 +++++++++++++++++++++
 src/main/java/frc/team2412/robot/Robot.java | 14 +++++++++++
 3 files changed, 45 insertions(+)

diff --git a/.gitignore b/.gitignore
index 13cedb39..8ff9b935 100644
--- a/.gitignore
+++ b/.gitignore
@@ -180,3 +180,6 @@ local.properties
 
 # Don't know what's creating this
 .project
+
+# Generated git info file
+src/main/deploy/git-info.txt
diff --git a/build.gradle b/build.gradle
index 479ffb42..e6f65d68 100644
--- a/build.gradle
+++ b/build.gradle
@@ -134,6 +134,34 @@ spotless {
 		trimTrailingWhitespace();
 	}
 }
+
+task writeGitInfo {
+	def addGitOutput = { PrintStream output, String name, String... args ->
+		output.println("### $name (git ${String.join(' ', args)})")
+		def execOutput = new ByteArrayOutputStream()
+		def ex = exec {
+			workingDir projectDir
+			executable 'git'
+			delegate.args args
+			standardOutput = execOutput
+		}
+		output.print(execOutput)
+	}
+
+	doLast {
+		try (PrintStream output = new PrintStream('src\\main\\deploy\\git-info.txt')) {
+			addGitOutput(output, 'Latest commit', 'log', '-1', '--decorate=short', '--format=medium')
+			addGitOutput(output, 'Changed files', 'diff-index', '--name-only', 'HEAD', '--')
+			addGitOutput(output, 'Untracked files', 'ls-files', '--exclude-standard', '--others')
+			output.println('### (END)')
+		}
+	}
+}
+if (getProjectBooleanProperty('jarWriteGitInfo', true)) {
+	jar.dependsOn(writeGitInfo)
+}
+
+// Set up spotless
 tasks.named("build") { finalizedBy("spotlessApply") }
 tasks.named("deploy") { finalizedBy("spotlessApply") }
 spotlessCheck.mustRunAfter(compileJava);
diff --git a/src/main/java/frc/team2412/robot/Robot.java b/src/main/java/frc/team2412/robot/Robot.java
index 053e6b3a..c0618fb9 100644
--- a/src/main/java/frc/team2412/robot/Robot.java
+++ b/src/main/java/frc/team2412/robot/Robot.java
@@ -16,6 +16,9 @@
 import frc.team2412.robot.sim.PhysicsSim;
 import frc.team2412.robot.util.MACAddress;
 import frc.team2412.robot.util.auto.AutonomousChooser;
+import java.io.File;
+import java.io.IOException;
+import java.nio.file.Files;
 import java.util.HashMap;
 import java.util.Optional;
 
@@ -103,6 +106,17 @@ public void robotInit() {
 		DriverStation.silenceJoystickConnectionWarning(true);
 
 		PathPlannerServer.startServer(5811);
+
+		logRobotInfo();
+	}
+
+	private void logRobotInfo() {
+		try {
+			File gitInfoFile = new File(Filesystem.getDeployDirectory(), "git-info.txt");
+			System.out.println("Git info:\n" + Files.readString(gitInfoFile.toPath()));
+		} catch (IOException e) {
+			DriverStation.reportWarning("Could not open git info file", true);
+		}
 	}
 
 	public SwerveAutoBuilder getAutoBuilder(HashMap<String, Command> eventMap) {