Initial groundwork for native sync support

src/backend/configParser.go

@@ -6,10 +6,11 @@ import (
 	"os"
 )
 
-// ReadConfig reads the libmutton.ini file and returns a map of the requested values
-// requires readMap: a map of section names to key names (indicates requested values)
-// returns configMap: a map of key names to values (sections are irrelevant)
-func ReadConfig(readKeys []string) []string {
+// ReadConfig reads the libmutton.ini file and returns a slice of values for the specified keys
+// requires readKeys: a slice of key names (indicates requested values)
+// requires missingValueError: an error message to display if a key is missing a value, set to "" for auto-generated or "0" to exit silently with status 0
+// returns config: a slice of values for the specified keys
+func ReadConfig(readKeys []string, missingValueError string) []string {
 	cfg, err := ini.Load(ConfigPath)
 	if err != nil {
 		fmt.Println(AnsiError + "Failed to load libmutton.ini" + AnsiReset)
@@ -23,7 +24,14 @@ func ReadConfig(readKeys []string) []string {
 
 		// ensure specified key has a value
 		if keyConfig == "" {
-			fmt.Println(AnsiError + "Failed to find value for key \"" + key + "\" in section \"[LIBMUTTON]\" in libmutton.ini" + AnsiReset)
+			switch missingValueError {
+			case "":
+				fmt.Println(AnsiError + "Failed to find value for key \"" + key + "\" in section \"[LIBMUTTON]\" in libmutton.ini" + AnsiReset)
+			case "0":
+				os.Exit(0)
+			default:
+				fmt.Println(AnsiError + missingValueError + AnsiReset)
+			}
 			os.Exit(1)
 		}
 
@@ -37,10 +45,9 @@ func ReadConfig(readKeys []string) []string {
 // [LIBMUTTON]
 // gpgID = <gpg key id>
 // textEditor = <editor command>
-// onlineMode = <true/false>
-// sshError = <true/false>
+// sshUser = <remote user>
+// sshIP = <remote ip>
+// sshPort = <remote ssh port>
+// sshIdentity = <ssh private key identity file path>
 // netPinEnabled = <true/false>
-// remoteUser = <ssh user>
-// remoteIP = <ssh ip>
-// remotePort = <ssh port>
-// identityFile = <path to private key>
+// deviceID = <device id> TODO remove from config file

src/backend/gpg.go

@@ -24,7 +24,7 @@ func DecryptGPG(targetLocation string) []string {
 
 // EncryptGPG encrypts a slice of strings using GPG and returns the encrypted data as a byte slice
 func EncryptGPG(input []string) []byte {
-	cmd := exec.Command("gpg", "-q", "-r", ReadConfig([]string{"gpgID"})[0], "-e")
+	cmd := exec.Command("gpg", "-q", "-r", ReadConfig([]string{"gpgID"}, "")[0], "-e")
 	writeToStdin(cmd, strings.Join(input, "\n"))
 	encryptedBytes, err := cmd.Output()
 	if err != nil {

src/sync/1globals.go

@@ -0,0 +1,6 @@
+package sync
+
+import "github.com/rwinkhart/MUTN/src/backend"
+
+// RootLength store length of backend.EntryRoot string
+var rootLength = len(backend.EntryRoot)

src/sync/sync.go

@@ -0,0 +1,42 @@
+package sync
+
+import (
+	"fmt"
+	"github.com/rwinkhart/MUTN/src/backend"
+	"os"
+)
+
+// returns lists of local entries and mod times (two separate lists)
+func getLocalData() {
+	fileList, _ := WalkEntryDir()
+	fmt.Println(fileList) // TODO placeholder
+}
+
+// RunJob runs the SSH sync job
+func RunJob(manualSync bool) {
+	// get SSH config info, exit if not configured (displaying an error if the sync job was called manually)
+	var sshUserIPPortIdentity []string
+	if manualSync {
+		sshUserIPPortIdentity = backend.ReadConfig([]string{"sshUser", "sshIP", "sshPort", "sshIdentity"}, "SSH settings not configured - run \"mutn init\" to configure")
+	} else {
+		sshUserIPPortIdentity = backend.ReadConfig([]string{"sshUser", "sshIP", "sshPort", "sshIdentity"}, "0")
+	}
+
+	var sshUser, sshIP, sshPort, sshIdentity string
+	for i, key := range sshUserIPPortIdentity {
+		switch i {
+		case 0:
+			sshUser = key
+		case 1:
+			sshIP = key
+		case 2:
+			sshPort = key
+		case 3:
+			sshIdentity = key
+		}
+	}
+
+	fmt.Println(sshUser, sshIP, sshPort, sshIdentity) // TODO placeholder
+
+	os.Exit(0)
+}

src/sync/walk.go

@@ -0,0 +1,46 @@
+package sync
+
+import (
+	"fmt"
+	"github.com/rwinkhart/MUTN/src/backend"
+	"io/fs"
+	"os"
+	"path/filepath"
+)
+
+// WalkEntryDir walks the entry directory and returns lists of all files and directories found (two separate lists)
+func WalkEntryDir() ([]string, []string) {
+	// define file/directory containing slices so that they may be accessed by the anonymous WalkDir function
+	var fileList []string
+	var dirList []string
+
+	// walk entry directory
+	_ = filepath.WalkDir(backend.EntryRoot,
+		func(fullPath string, entry fs.DirEntry, err error) error {
+
+			// check for errors encountered while walking directory
+			if err != nil {
+				if os.IsNotExist(err) {
+					fmt.Println(backend.AnsiError + "\nThe entry directory does not exist - run \"mutn init\" to create it" + backend.AnsiReset)
+				} else {
+					// otherwise, print the source of the error
+					fmt.Println(backend.AnsiError + "\nAn unexpected error occurred while generating the entry list: " + err.Error() + backend.AnsiReset)
+				}
+				os.Exit(1)
+			}
+
+			// trim root path from each path before storing
+			trimmedPath := fullPath[rootLength:]
+
+			// create separate slices for entries and directories
+			if !entry.IsDir() {
+				fileList = append(fileList, trimmedPath)
+			} else {
+				dirList = append(dirList, trimmedPath)
+			}
+
+			return nil
+		})
+
+	return fileList, dirList
+}