adding my repo sync tool

cmd/slackware-sync/main.go

@@ -0,0 +1,87 @@
+package main
+
+import (
+	"flag"
+	"fmt"
+	"github.com/BurntSushi/toml"
+	"net/url"
+	"os"
+	"os/exec"
+	"path"
+)
+
+func main() {
+	flag.Parse()
+	var config GeneralConfig
+	_, err := toml.DecodeFile(*flConfigFile, &config)
+	if err != nil {
+		fmt.Println(err)
+		os.Exit(1)
+	}
+
+	_, err = EnsureDirExists(config.SyncDir)
+	if err != nil {
+		fmt.Println(err)
+		os.Exit(1)
+	}
+
+	for _, mirror := range config.Mirrors {
+		if !mirror.Enabled {
+			continue
+		}
+		uri, err := url.Parse(mirror.URL)
+		if err != nil {
+			fmt.Fprintln(os.Stderr, err)
+			continue
+		}
+		dest := path.Join(config.SyncDir, uri.Host, uri.Path)
+		_, err = EnsureDirExists(dest)
+		if err != nil {
+			fmt.Fprintln(os.Stderr, err)
+			continue
+		}
+
+		cmd := exec.Command("rsync", "-avPHS", uri.String(), dest+"/")
+		cmd.Stderr = os.Stderr // we'll want to see errors, regardless
+		if !*flQuiet {
+			cmd.Stdout = os.Stdout
+		}
+
+    err = cmd.Run()
+    if err != nil {
+			fmt.Fprintln(os.Stderr, err)
+    }
+	}
+}
+
+func EnsureDirExists(path string) (os.FileInfo, error) {
+	stat, err := os.Stat(path)
+	if err != nil {
+		if !os.IsNotExist(err) {
+			return stat, err
+		}
+		if err = os.MkdirAll(path, 0755); err != nil {
+			return stat, err
+		}
+		if stat, err = os.Stat(path); err != nil {
+			return stat, err
+		}
+	}
+	return stat, nil
+}
+
+type GeneralConfig struct {
+	SyncDir string `toml:"sync_dir"`
+	Mirrors map[string]Mirror
+}
+
+type Mirror struct {
+	Title   string `toml:"title"`
+	URL     string `toml:"url"`
+	Enabled bool   `toml:"enabled"`
+}
+
+var (
+	flConfigFile = flag.String("c", path.Join(os.Getenv("HOME"), ".slackware-sync.toml"), "config file for the sync")
+	flQuiet      = flag.Bool("q", false, "less output")
+)