From 9a21437358bea8f347e98cba564a5b214bb6607b Mon Sep 17 00:00:00 2001
From: xengineering <me@xengineering.eu>
Date: Tue, 30 Jul 2024 18:14:55 +0200
Subject: Clone source on host and upload to VM with rsync

This prepares to disable internet access for the VM.
---
 main.go | 64 ++++++++++++++++++++++++++++++++++++++++++++--------------------
 1 file changed, 44 insertions(+), 20 deletions(-)

diff --git a/main.go b/main.go
index 7bfb2e0..8247ab4 100644
--- a/main.go
+++ b/main.go
@@ -42,8 +42,15 @@ func main() {
 	log.Println("Starting craft")
 	defer log.Println("Exiting craft")
 
+	source, err := os.MkdirTemp("", "*-craft")
+	if err != nil {
+		log.Fatal(err)
+	}
+	defer os.RemoveAll(source)
+	checkout(repo, commit, source)
+
 	vm := qemu()
-	err := vm.Start()
+	err = vm.Start()
 	if err != nil {
 		log.Fatal(err)
 	}
@@ -53,22 +60,11 @@ func main() {
 			log.Fatal(err)
 		}
 	}()
-
 	waitBoot()
 
-	checkoutSources(repo, commit)
-	craft()
-}
+	upload(source)
 
-func runCommand(name string, args ...string) {
-	log.Printf("Remote execution: %s %s\n", name, strings.Join(args, " "))
-	command := sshCommand(name, args...)
-	command.Stderr = os.Stderr
-	command.Stdout = os.Stdout
-	err := command.Run()
-	if err != nil {
-		log.Fatal(err)
-	}
+	craft()
 }
 
 func qemu() *exec.Cmd {
@@ -148,20 +144,31 @@ cd %s
 	}
 }
 
-func checkoutSources(repo string, commit string) string {
+func runCommand(name string, args ...string) {
+	log.Printf("Execution: %s %s\n", name, strings.Join(args, " "))
+	command := exec.Command(name, args...)
+	command.Stderr = os.Stderr
+	command.Stdout = os.Stdout
+	err := command.Run()
+	if err != nil {
+		log.Fatal(err)
+	}
+}
+
+func checkout(repo string, commit string, target string) {
 	runCommand(
 		"git",
 		"clone",
 		repo,
-		workbench,
+		target,
 	)
 
 	runCommand(
 		"git",
 		"--git-dir",
-		filepath.Join(workbench, ".git"),
+		filepath.Join(target, ".git"),
 		"--work-tree",
-		workbench,
+		target,
 		"checkout",
 		commit,
 	)
@@ -169,7 +176,7 @@ func checkoutSources(repo string, commit string) string {
 	runCommand(
 		"git",
 		"-C",
-		workbench,
+		target,
 		"submodule",
 		"update",
 		"--depth=1",
@@ -177,5 +184,22 @@ func checkoutSources(repo string, commit string) string {
 		"--recursive",
 	)
 
-	return workbench
+	log.Printf("Checked source out to '%s'", target)
+}
+
+func upload(directory string) {
+	mkdir := sshCommand("mkdir", "/root/build")
+	err := mkdir.Run()
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	runCommand(
+		"rsync",
+		"-a",
+		filepath.Clean(directory)+"/",
+		"--rsh",
+		"ssh -p "+port+" -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no -i "+key,
+		"root@localhost:/root/build/",
+	)
 }
-- 
cgit v1.2.3-70-g09d2