DoubleSync first commit

README.md

@@ -0,0 +1,6 @@
+# DoubleSync
+Your files are always in sync, just like the Party’s truth
+
+# Usage
+go mod tidy
+go run ./doublesync.go

doublesync.go

@@ -0,0 +1,126 @@
+package main
+
+import (
+	"log"
+	"os"
+	"path/filepath"
+	"github.com/fsnotify/fsnotify"
+	"regexp"
+	"slices"
+	"io/ioutil"
+	"strings"
+)
+
+func main() {
+	// Create new watcher.
+	watcher, err := fsnotify.NewWatcher()
+	if err != nil {
+		log.Fatal(err)
+	}
+	defer watcher.Close()
+
+	// Start listening for events.
+	go func() {
+		for {
+			select {
+			case event, ok := <-watcher.Events:
+				if !ok {
+					return
+				}
+
+				archive_basedir := "/tmp/newmails/"	
+				var mailbox                string
+				var dovecot_uidlist_src    string
+				var dovecot_indexlog_src   string
+				var dovecot_indexcache_src string
+				var dovecot_dest           string 
+
+				if event.Has(fsnotify.Create) {
+
+					re := regexp.MustCompile(`^.*\.archival\.Incoming\/new\/.*$`)
+					new_mail        := re.FindString(event.Name)
+					last_mail       := regexp.MustCompile(`/`).Split(new_mail, -1)
+					username_index  := slices.Index(last_mail, "home")
+					username        := last_mail[username_index+1]
+					archive_mailbox := archive_basedir + username + ".Incoming/new/"	
+					archive_err     := ensureDir(archive_mailbox)
+					new_loc         := archive_mailbox	+ last_mail[len(last_mail)-1]
+
+					// Get archive mailbox path
+					mailbox_index := username_index+4
+					if len(last_mail) > 1 {
+            mailbox = strings.Join(last_mail[0:mailbox_index], "/")
+					  dovecot_uidlist_src    = mailbox + "/dovecot-uidlist"
+					  dovecot_indexlog_src   = mailbox + "/dovecot.index.log"
+					  dovecot_indexcache_src = mailbox + "/dovecot.index.cache"
+					  dovecot_dest           = archive_basedir + last_mail[mailbox_index] 
+					  log.Println(mailbox)
+					}
+					//log.Println(len(last_mail))
+					log.Println("dovecot")
+					log.Println(dovecot_dest)
+					log.Println(dovecot_uidlist_src)
+					log.Println(dovecot_indexlog_src)
+					log.Println(dovecot_indexcache_src)
+					if archive_err != nil {
+						log.Fatal(archive_err)
+					}
+					if len(new_mail) > 0 {
+						log.Println("moving user ",username,"files to ", new_loc)
+						err := os.Rename(new_mail, new_loc)
+						if err != nil {
+							panic(err)
+						}
+						//uidlist_err := copyFiles(dovecot_uidlist_src, dovecot_dest)
+					  //log_err := copyFiles(dovecot_indexlog_src, dovecot_dest)
+						//cache_err := copyFiles(dovecot_indexcache_src, dovecot_dest)
+						//if uidlist_err != nil || log_err != nil || cache_err != nil {
+						//	panic(err)
+						//}
+					}
+				}
+				
+
+			case err, ok := <-watcher.Errors:
+				if !ok {
+					return
+				}
+				log.Println("error:", err)
+			}
+		}
+	}()
+
+	// Add a path.
+	filepath.Walk("/home/",  func(path  string, info os.FileInfo, err error) error{
+		if info.IsDir() {
+			watcher.Add(path)
+		}
+		return nil
+	})
+	// Block main goroutine forever.
+	<-make(chan struct{})
+}
+
+// Create archive directory
+func ensureDir(dirName string) error {
+    err := os.MkdirAll(dirName, 0755)
+    if err == nil || os.IsExist(err) {
+        return nil
+    } else {
+        return err
+    }
+}
+
+// Copy dovecot index and cache
+func copyFiles(src string, dest string) error {
+    bytesRead, err := ioutil.ReadFile(src)
+    if err != nil {
+        log.Fatal(err)
+    }
+    err = ioutil.WriteFile(dest, bytesRead, 0644)
+    if err == nil {
+			return nil
+		} else {
+      return err
+    }
+}

go.mod

@@ -0,0 +1,8 @@
+module deepOfix/letter_sync
+
+go 1.22.5
+
+require (
+	github.com/fsnotify/fsnotify v1.7.0 // indirect
+	golang.org/x/sys v0.4.0 // indirect
+)

go.sum

@@ -0,0 +1,4 @@
+github.com/fsnotify/fsnotify v1.7.0 h1:8JEhPFa5W2WU7YfeZzPNqzMP6Lwt7L2715Ggo0nosvA=
+github.com/fsnotify/fsnotify v1.7.0/go.mod h1:40Bi/Hjc2AVfZrqy+aj+yEI+/bRxZnMJyTJwOpGvigM=
+golang.org/x/sys v0.4.0 h1:Zr2JFtRQNX3BCZ8YtxRE9hNJYC8J6I1MVbMg6owUp18=
+golang.org/x/sys v0.4.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=