From 540926358b7ad974f2f3258d4fe6e88249cbd777 Mon Sep 17 00:00:00 2001
From: sneak <sneak@sneak.berlin>
Date: Wed, 22 May 2024 13:58:36 -0700
Subject: [PATCH] latest

---
 Makefile   | 13 +++++++++++++
 README.md  |  8 ++++++++
 go.mod     |  2 ++
 go.sum     |  4 ++++
 sources.go |  7 +++++--
 5 files changed, 32 insertions(+), 2 deletions(-)
 create mode 100644 README.md

diff --git a/Makefile b/Makefile
index cbf18f0..11e86a0 100644
--- a/Makefile
+++ b/Makefile
@@ -1,5 +1,18 @@
+TESTHOST := nnny-sync-alpha.nebula
+
 fmt:
 	go fmt ./...
 
 lint:
 	golangci-lint run
+
+test:
+	rsync -avP --exclude .git --delete  ./ root@$(TESTHOST):/root/fastmirror
+	ssh root@$(TESTHOST) "cd /root/fastmirror && make dotest"
+
+dotest:
+	rm -f /etc/apt/sources.list.d/*
+	cp /root/ubuntu.sources /etc/apt/sources.list.d/
+	go build -o ./fastmirror ./cmd/fastmirror
+	./fastmirror
+
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..70cd132
--- /dev/null
+++ b/README.md
@@ -0,0 +1,8 @@
+# WIP
+
+This doesn't work right yet.
+
+# See also
+
+* https://askubuntu.com/questions/428698/are-there-alternative-repositories-to-ports-ubuntu-com-for-arm
+
diff --git a/go.mod b/go.mod
index 6d17566..8cf6ed4 100644
--- a/go.mod
+++ b/go.mod
@@ -4,8 +4,10 @@ go 1.22.2
 
 require (
 	github.com/mitchellh/colorstring v0.0.0-20190213212951-d06e56a500db // indirect
+	github.com/otiai10/copy v1.14.0 // indirect
 	github.com/rivo/uniseg v0.4.7 // indirect
 	github.com/schollz/progressbar/v3 v3.14.3 // indirect
+	golang.org/x/sync v0.3.0 // indirect
 	golang.org/x/sys v0.20.0 // indirect
 	golang.org/x/term v0.20.0 // indirect
 )
diff --git a/go.sum b/go.sum
index af4bd7b..b4bfc5a 100644
--- a/go.sum
+++ b/go.sum
@@ -4,6 +4,8 @@ github.com/k0kubun/go-ansi v0.0.0-20180517002512-3bf9e2903213/go.mod h1:vNUNkEQ1
 github.com/mattn/go-isatty v0.0.20/go.mod h1:W+V8PltTTMOvKvAeJH7IuucS94S2C6jfK/D7dTCTo3Y=
 github.com/mitchellh/colorstring v0.0.0-20190213212951-d06e56a500db h1:62I3jR2EmQ4l5rM/4FEfDWcRD+abF5XlKShorW5LRoQ=
 github.com/mitchellh/colorstring v0.0.0-20190213212951-d06e56a500db/go.mod h1:l0dey0ia/Uv7NcFFVbCLtqEBQbrT4OCwCSKTEv6enCw=
+github.com/otiai10/copy v1.14.0 h1:dCI/t1iTdYGtkvCuBG2BgR6KZa83PTclw4U5n2wAllU=
+github.com/otiai10/copy v1.14.0/go.mod h1:ECfuL02W+/FkTWZWgQqXPWZgW9oeKCSQ5qVfSc4qc4w=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
 github.com/rivo/uniseg v0.4.7 h1:WUdvkW8uEhrYfLC4ZzdpI2ztxP1I582+49Oc5Mq64VQ=
 github.com/rivo/uniseg v0.4.7/go.mod h1:FN3SvrM+Zdj16jyLfmOkMNblXMcoc8DfTHruCPUcx88=
@@ -11,6 +13,8 @@ github.com/schollz/progressbar/v3 v3.14.3 h1:oOuWW19ka12wxYU1XblR4n16wF/2Y1dBLMa
 github.com/schollz/progressbar/v3 v3.14.3/go.mod h1:aT3UQ7yGm+2ZjeXPqsjTenwL3ddUiuZ0kfQ/2tHlyNI=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
+golang.org/x/sync v0.3.0 h1:ftCYgMx6zT/asHUrPw8BLLscYtGznsLAnjq5RH9P66E=
+golang.org/x/sync v0.3.0/go.mod h1:FU7BRWz2tNW+3quACPkgCx/L+uEAv1htQ0V83Z9Rj+Y=
 golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.20.0 h1:Od9JTbYCk261bKm4M/mw7AklTlFYIa0bIp9BgSm1S8Y=
 golang.org/x/sys v0.20.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
diff --git a/sources.go b/sources.go
index a26f967..20aa381 100644
--- a/sources.go
+++ b/sources.go
@@ -9,6 +9,8 @@ import (
 	"path/filepath"
 	"regexp"
 	"strings"
+
+	cp "github.com/otiai10/copy"
 )
 
 func findSourcesFilePath() (string, error) {
@@ -67,8 +69,9 @@ func createBackup(filePath string) error {
 	if _, err := os.Stat(backupPath); err == nil {
 		return fmt.Errorf("backup file %s already exists", backupPath)
 	}
-	if err := os.Rename(filePath, backupPath); err != nil {
-		return fmt.Errorf("failed to create backup of %s: %v", filePath, err)
+	// copy the file to the backup file
+	if err := cp.Copy(filePath, backupPath); err != nil {
+		return fmt.Errorf("failed to create backup file %s: %v", backupPath, err)
 	}
 	log.Printf("Created backup: %s", backupPath)
 	return nil