Fix up logging a little

instruction.go

@@ -2,7 +2,6 @@ package main
 
 import (
 	"fmt"
-	"log"
 	"os"
 	"path/filepath"
 	"slices"
@@ -157,7 +156,7 @@ func (instruction *LinkInstruction) RunAsync(status chan (error)) {
 					return
 				}
 				if info.Mode().IsRegular() && info.Name() == filepath.Base(instruction.Source) {
-					log.Printf("Overwriting existing file %s%s%s", TargetColor, instruction.Target, DefaultColor)
+					LogTarget("Overwriting existing file %s", instruction.Target)
 					err := os.Remove(instruction.Target)
 					if err != nil {
 						status <- fmt.Errorf("could not remove existing file %s%s%s; err: %s%+v%s", TargetColor, instruction.Target, DefaultColor, ErrorColor, err, DefaultColor)
@@ -167,7 +166,7 @@ func (instruction *LinkInstruction) RunAsync(status chan (error)) {
 			}
 
 			if isSymlink {
-				log.Printf("Removing symlink at %s%s%s", TargetColor, instruction.Target, DefaultColor)
+				LogTarget("Removing symlink at %s", instruction.Target)
 				err = os.Remove(instruction.Target)
 				if err != nil {
 					status <- fmt.Errorf("failed deleting %s%s%s due to %s%+v%s", TargetColor, instruction.Target, DefaultColor, ErrorColor, err, DefaultColor)
@@ -178,7 +177,7 @@ func (instruction *LinkInstruction) RunAsync(status chan (error)) {
 					status <- fmt.Errorf("refusing to delte actual (non symlink) file %s%s%s", TargetColor, instruction.Target, DefaultColor)
 					return
 				}
-				log.Printf("%sDeleting (!!!)%s %s%s%s", ImportantColor, DefaultColor, TargetColor, instruction.Target, DefaultColor)
+				LogImportant("Deleting (!!!) %s", instruction.Target)
 				err = os.RemoveAll(instruction.Target)
 				if err != nil {
 					status <- fmt.Errorf("failed deleting %s%s%s due to %s%+v%s", TargetColor, instruction.Target, DefaultColor, ErrorColor, err, DefaultColor)
@@ -210,7 +209,9 @@ func (instruction *LinkInstruction) RunAsync(status chan (error)) {
 		status <- fmt.Errorf("failed creating symlink between %s%s%s and %s%s%s with error %s%+v%s", SourceColor, instruction.Source, DefaultColor, TargetColor, instruction.Target, DefaultColor, ErrorColor, err, DefaultColor)
 		return
 	}
-	log.Printf("Created symlink between %s%s%s and %s%s%s", SourceColor, instruction.Source, DefaultColor, TargetColor, instruction.Target, DefaultColor)
+	LogInfo("Created symlink between %s and %s",
+		FormatSourcePath(instruction.Source),
+		FormatTargetPath(instruction.Target))
 
 	status <- nil
 }
@@ -237,12 +238,13 @@ func ParseYAMLFile(filename, workdir string) ([]LinkInstruction, error) {
 	toRemove := []int{}
 	for i, link := range config.Links {
 		if strings.Contains(link.Source, "*") {
-			log.Printf("Expanding wildcard source %s%s%s in YAML file %s%s%s", SourceColor, link.Source, DefaultColor, SourceColor, filename, DefaultColor)
+			LogSource("Expanding wildcard source %s in YAML file %s", link.Source, filename)
 			newlinks, err := ExpandWildcard(link.Source, workdir, link.Target)
 			if err != nil {
 				return nil, fmt.Errorf("error expanding wildcard: %w", err)
 			}
-			log.Printf("Expanded wildcard source %s%s%s in YAML file %s%s%s to %d links", SourceColor, link.Source, DefaultColor, SourceColor, filename, DefaultColor, len(newlinks))
+			LogInfo("Expanded wildcard source %s in YAML file %s to %d links",
+				FormatSourcePath(link.Source), FormatSourcePath(filename), len(newlinks))
 			config.Links = append(config.Links, newlinks...)
 			toRemove = append(toRemove, i)
 		}
@@ -287,6 +289,7 @@ func ExpandWildcard(source, workdir, target string) (links []LinkInstruction, er
 		links = append(links, link)
 	}
 
+	LogInfo("Expanded wildcard source %s to %d links", FormatSourcePath(source), len(links))
 	return
 }
 

logger.go

@@ -0,0 +1,66 @@
+package main
+
+import (
+	"fmt"
+	"log"
+)
+
+// LogInfo logs an informational message
+func LogInfo(format string, args ...interface{}) {
+	log.Printf(format, args...)
+}
+
+// LogSource logs a message about a source file/path with proper coloring
+func LogSource(format string, args ...interface{}) {
+	message := fmt.Sprintf(format, args...)
+	log.Printf("%s%s%s", SourceColor, message, DefaultColor)
+}
+
+// LogTarget logs a message about a target file/path with proper coloring
+func LogTarget(format string, args ...interface{}) {
+	message := fmt.Sprintf(format, args...)
+	log.Printf("%s%s%s", TargetColor, message, DefaultColor)
+}
+
+// LogPath logs a message about a path with proper coloring
+func LogPath(format string, args ...interface{}) {
+	message := fmt.Sprintf(format, args...)
+	log.Printf("%s%s%s", PathColor, message, DefaultColor)
+}
+
+// LogImportant logs a message that needs attention with proper coloring
+func LogImportant(format string, args ...interface{}) {
+	message := fmt.Sprintf(format, args...)
+	log.Printf("%s%s%s", ImportantColor, message, DefaultColor)
+}
+
+// LogError logs an error message with proper coloring that won't be cut off
+func LogError(format string, args ...interface{}) {
+	message := fmt.Sprintf(format, args...)
+	log.Printf("%s%s%s", ErrorColor, message, DefaultColor)
+	// Make sure we're properly resetting before applying error color to avoid cutoffs
+	log.Printf("%s%s%s", ErrorColor, fmt.Sprintf(format, args...), DefaultColor)
+}
+
+// FormatSourcePath formats a source path with proper coloring
+func FormatSourcePath(path string) string {
+	return fmt.Sprintf("%s%s%s", SourceColor, path, DefaultColor)
+}
+
+// FormatTargetPath formats a target path with proper coloring
+func FormatTargetPath(path string) string {
+	return fmt.Sprintf("%s%s%s", TargetColor, path, DefaultColor)
+}
+
+// FormatPathValue formats a path value with proper coloring
+func FormatPathValue(path string) string {
+	return fmt.Sprintf("%s%s%s", PathColor, path, DefaultColor)
+}
+
+// FormatErrorValue formats an error value with proper coloring
+func FormatErrorValue(err error) string {
+	if err == nil {
+		return ""
+	}
+	return fmt.Sprintf("%s%v%s", ErrorColor, err, DefaultColor)
+}

main.go

@@ -33,7 +33,7 @@ func main() {
 		log.SetFlags(log.Lmicroseconds | log.Lshortfile)
 		logFile, err := os.Create("cln.log")
 		if err != nil {
-			log.Printf("Error creating log file: %v", err)
+			LogError("Error creating log file: %v", err)
 			os.Exit(1)
 		}
 		logger := io.MultiWriter(os.Stdout, logFile)
@@ -48,36 +48,36 @@ func main() {
 	// Check input sources in priority order
 	switch {
 	case *recurse != "":
-		log.Printf("Recurse: %s", *recurse)
+		LogInfo("Recurse: %s", *recurse)
 		go ReadFromFilesRecursively(*recurse, instructions, status)
 
 	case *file != "":
-		log.Printf("File: %s", *file)
+		LogInfo("File: %s", *file)
 		go ReadFromFile(*file, instructions, status, true)
 
 	case len(flag.Args()) > 0:
-		log.Printf("Reading from command line arguments")
+		LogInfo("Reading from command line arguments")
 		go ReadFromArgs(instructions, status)
 
 	case IsPipeInput():
-		log.Printf("Reading from stdin pipe")
+		LogInfo("Reading from stdin pipe")
 		go ReadFromStdin(instructions, status)
 
 	default:
 		if _, err := os.Stat("sync.yaml"); err == nil {
-			log.Printf("Using default sync.yaml file")
+			LogInfo("Using default sync.yaml file")
 			go ReadFromFile("sync.yaml", instructions, status, true)
 		} else if _, err := os.Stat("sync.yml"); err == nil {
-			log.Printf("Using default sync.yml file")
+			LogInfo("Using default sync.yml file")
 			go ReadFromFile("sync.yml", instructions, status, true)
 		} else {
-			log.Printf("No input provided")
+			LogInfo("No input provided")
-			log.Printf("Provide input as: ")
+			LogInfo("Provide input as: ")
-			log.Printf("Arguments - %s <source>,<target>,<force?>", programName)
+			LogInfo("Arguments - %s <source>,<target>,<force?>", programName)
-			log.Printf("File - %s -f <file>", programName)
+			LogInfo("File - %s -f <file>", programName)
-			log.Printf("YAML File - %s -f <file.yaml>", programName)
+			LogInfo("YAML File - %s -f <file.yaml>", programName)
-			log.Printf("Folder (finding sync files in folder recursively) - %s -r <folder>", programName)
+			LogInfo("Folder (finding sync files in folder recursively) - %s -r <folder>", programName)
-			log.Printf("stdin - (cat <file> | %s)", programName)
+			LogInfo("stdin - (cat <file> | %s)", programName)
 			os.Exit(1)
 		}
 	}
@@ -89,7 +89,7 @@ func main() {
 				break
 			}
 			if err != nil {
-				log.Println(err)
+				LogError("%v", err)
 			}
 		}
 	}()
@@ -99,26 +99,27 @@ func main() {
 	for {
 		instruction, ok := <-instructions
 		if !ok {
-			log.Printf("No more instructions to process")
+			LogInfo("No more instructions to process")
 			break
 		}
-		log.Printf("Processing: %s", instruction.String())
+		LogInfo("Processing: %s", instruction.String())
 		status := make(chan error)
 		go instruction.RunAsync(status)
 		wg.Add(1)
 		err := <-status
 		if err != nil {
-			log.Printf("Failed parsing instruction %s%s%s due to %s%+v%s", SourceColor, instruction.String(), DefaultColor, ErrorColor, err, DefaultColor)
+			LogError("Failed parsing instruction %s due to %v",
+				FormatSourcePath(instruction.String()), err)
 		}
 		atomic.AddInt32(&instructionsDone, 1)
 		wg.Done()
 	}
 	wg.Wait()
-	log.Println("All done")
 	if instructionsDone == 0 {
-		log.Printf("No instructions were processed")
+		LogInfo("No instructions were processed")
 		os.Exit(1)
 	}
+	LogInfo("All done")
 }
 
 func IsPipeInput() bool {
@@ -135,55 +136,61 @@ func ReadFromFilesRecursively(input string, output chan *LinkInstruction, status
 
 	workdir, _ := os.Getwd()
 	input = NormalizePath(input, workdir)
-	log.Printf("Reading input from files recursively starting in %s%s%s", PathColor, input, DefaultColor)
+	LogInfo("Reading input from files recursively starting in %s%s%s", PathColor, input, DefaultColor)
 
 	files := make(chan string, 128)
-	recurseStatus := make(chan error)
+	fileStatus := make(chan error)
-	go GetSyncFilesRecursively(input, files, recurseStatus)
+	var wg sync.WaitGroup
+	go GetSyncFilesRecursively(input, files, fileStatus)
+	go func() {
+		wg.Wait()
+		close(files)
+	}()
+
 	go func() {
 		for {
-			err, ok := <-recurseStatus
+			err, ok := <-fileStatus
 			if !ok {
 				break
 			}
 			if err != nil {
-				log.Printf("Failed to get sync files recursively: %s%+v%s", ErrorColor, err, DefaultColor)
+				LogError("Failed to get sync files recursively: %v", err)
 				status <- err
 			}
 		}
 	}()
 
-	var wg sync.WaitGroup
 	for {
 		file, ok := <-files
 		if !ok {
-			log.Printf("No more files to process")
+			LogInfo("No more files to process")
 			break
 		}
 		wg.Add(1)
 		go func() {
 			defer wg.Done()
-			log.Println(file)
+			LogInfo(file)
 			file = NormalizePath(file, workdir)
-			log.Printf("Processing file: %s%s%s", PathColor, file, DefaultColor)
+			LogInfo("Processing file: %s%s%s", PathColor, file, DefaultColor)
 
 			// This "has" to be done because instructions are resolved in relation to cwd
 			fileDir := FileRegex.FindStringSubmatch(file)
 			if fileDir == nil {
-				log.Printf("Failed to extract directory from %s%s%s", SourceColor, file, DefaultColor)
+				LogError("Failed to extract directory from %s%s%s", SourceColor, file, DefaultColor)
 				return
 			}
-			log.Printf("Changing directory to %s%s%s (for %s%s%s)", PathColor, fileDir[1], DefaultColor, PathColor, file, DefaultColor)
+			LogInfo("Changing directory to %s%s%s (for %s%s%s)", PathColor, fileDir[1], DefaultColor, PathColor, file, DefaultColor)
 			err := os.Chdir(fileDir[1])
 			if err != nil {
-				log.Printf("Failed to change directory to %s%s%s: %s%+v%s", SourceColor, fileDir[1], DefaultColor, ErrorColor, err, DefaultColor)
+				LogError("Failed to change directory to %s%s%s: %v",
+					SourceColor, fileDir[1], DefaultColor, err)
 				return
 			}
-
 			ReadFromFile(file, output, status, false)
+			// Don't return directory, stay where we are
+			os.Chdir(workdir)
 		}()
 	}
-	wg.Wait()
 }
 
 func ReadFromFile(input string, output chan *LinkInstruction, status chan error, doclose bool) {
@@ -193,14 +200,14 @@ func ReadFromFile(input string, output chan *LinkInstruction, status chan error,
 	}
 
 	input = NormalizePath(input, filepath.Dir(input))
-	log.Printf("Reading input from file: %s%s%s", PathColor, input, DefaultColor)
+	LogInfo("Reading input from file: %s%s%s", PathColor, input, DefaultColor)
 
 	// Check if this is a YAML file
 	if IsYAMLFile(input) {
-		log.Printf("Parsing as YAML file")
+		LogInfo("Parsing as YAML file")
 		instructions, err := ParseYAMLFile(input, filepath.Dir(input))
 		if err != nil {
-			log.Printf("Failed to parse YAML file %s%s%s: %s%+v%s",
+			LogError("Failed to parse YAML file %s%s%s: %s%+v%s",
 				SourceColor, input, DefaultColor, ErrorColor, err, DefaultColor)
 			status <- err
 			return
@@ -208,7 +215,7 @@ func ReadFromFile(input string, output chan *LinkInstruction, status chan error,
 
 		for _, instruction := range instructions {
 			instr := instruction // Create a copy to avoid reference issues
-			log.Printf("Read YAML instruction: %s", instr.String())
+			LogInfo("Read YAML instruction: %s", instr.String())
 			output <- &instr
 		}
 		return
@@ -220,11 +227,12 @@ func ReadFromArgs(output chan *LinkInstruction, status chan error) {
 	defer close(status)
 
 	workdir, _ := os.Getwd()
-	log.Printf("Reading input from args")
+	LogInfo("Reading input from args")
 	for _, arg := range flag.Args() {
 		instruction, err := ParseInstruction(arg, workdir)
 		if err != nil {
-			log.Printf("Error parsing arg: %s'%s'%s, error: %s%+v%s", SourceColor, arg, DefaultColor, ErrorColor, err, DefaultColor)
+			LogError("Error parsing arg: %s'%s'%s, error: %v",
+				SourceColor, arg, DefaultColor, err)
 			continue
 		}
 		output <- &instruction
@@ -236,20 +244,21 @@ func ReadFromStdin(output chan *LinkInstruction, status chan error) {
 	defer close(status)
 
 	workdir, _ := os.Getwd()
-	log.Printf("Reading input from stdin")
+	LogInfo("Reading input from stdin")
 
 	scanner := bufio.NewScanner(os.Stdin)
 	for scanner.Scan() {
 		line := scanner.Text()
 		instruction, err := ParseInstruction(line, workdir)
 		if err != nil {
-			log.Printf("Error parsing line: %s'%s'%s, error: %s%+v%s", SourceColor, line, DefaultColor, ErrorColor, err, DefaultColor)
+			LogError("Error parsing line: %s'%s'%s, error: %v",
+				SourceColor, line, DefaultColor, err)
 			continue
 		}
 		output <- &instruction
 	}
 	if err := scanner.Err(); err != nil {
-		log.Fatalf("Error reading from stdin: %s%+v%s", ErrorColor, err, DefaultColor)
+		LogError("Error reading from stdin: %v", err)
 		status <- err
 		return
 	}

synclib.log

@@ -0,0 +1,26 @@
+18:24:37.967093 Using default sync.yaml file
+18:24:37.967093 Input 'sync.yaml' is not absolute, prepending work dir '.'
+18:24:37.967593 Reading input from file: C:/Users/Administrator/Seafile/Projects-Go/GoProjects/synclib/sync.yaml
+18:24:37.967593 Parsing as YAML file
+18:24:37.967593 Failed to parse YAML file C:/Users/Administrator/Seafile/Projects-Go/GoProjects/synclib/sync.yaml: error unmarshaling YAML: yaml: unmarshal errors:
+  line 1: cannot unmarshal !!seq into main.YAMLConfig
+18:24:37.967593 No more instructions to process
+18:24:37.968092 No instructions were processed
+18:27:59.691333 Using default sync.yaml file
+18:27:59.691333 Input 'sync.yaml' is not absolute, prepending work dir '.'
+18:27:59.691834 Reading input from file: C:/Users/Administrator/Seafile/Projects-Go/GoProjects/synclib/sync.yaml
+18:27:59.691834 Parsing as YAML file
+18:27:59.692335 Expanding wildcard source \* in YAML file C:/Users/Administrator/Seafile/Projects-Go/GoProjects/synclib/sync.yaml
+18:27:59.692335 Expanded wildcard source \* to 0 links
+18:27:59.692836 Expanded wildcard source \* in YAML file C:/Users/Administrator/Seafile/Projects-Go/GoProjects/synclib/sync.yaml to 0 links
+18:27:59.692836 No more instructions to process
+18:27:59.692836 No instructions were processed
+18:28:04.075821 Using default sync.yaml file
+18:28:04.076320 Input 'sync.yaml' is not absolute, prepending work dir '.'
+18:28:04.076320 Reading input from file: C:/Users/Administrator/Seafile/Projects-Go/GoProjects/synclib/sync.yaml
+18:28:04.076320 Parsing as YAML file
+18:28:04.076320 Expanding wildcard source \* in YAML file C:/Users/Administrator/Seafile/Projects-Go/GoProjects/synclib/sync.yaml
+18:28:04.076821 Expanded wildcard source \* to 0 links
+18:28:04.076821 Expanded wildcard source \* in YAML file C:/Users/Administrator/Seafile/Projects-Go/GoProjects/synclib/sync.yaml to 0 links
+18:28:04.076821 No more instructions to process
+18:28:04.076821 No instructions were processed

util.go

@@ -2,7 +2,6 @@ package main
 
 import (
 	"fmt"
-	"log"
 	"os"
 	"path/filepath"
 	"strings"
@@ -33,12 +32,12 @@ func NormalizePath(input, workdir string) string {
 	input = strings.ReplaceAll(input, "\"", "")
 
 	if !filepath.IsAbs(input) {
-		log.Printf("Input '%s' is not absolute, prepending work dir '%s'", input, workdir)
+		LogInfo("Input '%s' is not absolute, prepending work dir '%s'", input, workdir)
 		var err error
 		input = filepath.Join(workdir, input)
 		input, err = filepath.Abs(input)
 		if err != nil {
-			log.Printf("Failed to get absolute path for %s%s%s: %s%+v%s", SourceColor, input, DefaultColor, ErrorColor, err, DefaultColor)
+			LogError("Failed to get absolute path for %s: %v", FormatSourcePath(input), err)
 			return input
 		}
 	}
@@ -157,15 +156,17 @@ func GetSyncFilesRecursively(input string, output chan string, status chan error
 
 	<-allDone
 
-	log.Printf("Files processed: %d; Folders processed: %d",
+	if atomic.LoadInt32(&filesProcessed) > 0 {
+		LogInfo("Files processed: %d; Folders processed: %d",
 			atomic.LoadInt32(&filesProcessed),
 			atomic.LoadInt32(&foldersProcessed))
 	}
+}
 
 func processDirectory(directory string, directories chan<- string, output chan<- string, filesProcessed *int32) {
 	files, err := os.ReadDir(directory)
 	if err != nil {
-		log.Printf("Error reading directory %s: %+v", directory, err)
+		LogError("Error reading directory %s: %v", directory, err)
 		return
 	}