Fix file exists bug in listDistractors

README.md

@@ -12,6 +12,13 @@ This is a Go implementation of the Python-written [concentration](https://github
 go install codeberg.org/hyperreal/hyperfocus@latest
 ```
 
+Move the binary to a path where sudo can find it. E.g.:
+
+``` bash
+cd ~/go/bin
+sudo cp -v hyperfocus /usr/local/bin
+```
+
 ## Usage
 
 ```bash

main.go

@@ -213,45 +213,54 @@ func takeBreak(minutes int) {
 
 // Prints the current list of distractors to be blocked
 // If neither /etc/hf_distractors nor /etc/hf_predef_distractors exist,
-// print error message to console but do not exit.
+// print error message to console and exit.
 func listDistractors() {
 
-	// Open /etc/hf_distractors and store it as *os.File type
-	userDistractorsFileObj, err := os.Open(localFilePaths["uDistractors"])
-	if err != nil {
-		fmt.Println(err)
+	if !fileExists(localFilePaths["uDistractors"]) && !fileExists(localFilePaths["pDistractors"]) {
+		fmt.Printf("%s not found\n", localFilePaths["uDistractors"])
+		fmt.Printf("%s not found\n", localFilePaths["pDistractors"])
+		os.Exit(1)
 	}
-	defer func() {
-		if err := userDistractorsFileObj.Close(); err != nil {
-			fmt.Printf("Error closing file: %s\n", err)
+
+	if fileExists(localFilePaths["uDistractors"]) {
+		// Open /etc/hf_distractors and store it as *os.File type
+		userDistractorsFileObj, err := os.Open(localFilePaths["uDistractors"])
+		if err != nil {
+			fmt.Println(err)
 		}
-	}()
+		defer func() {
+			if err := userDistractorsFileObj.Close(); err != nil {
+				fmt.Printf("Error closing file: %s\n", err)
+			}
+		}()
 
-	// Initialize a new scanner, scan /etc/hf_distractors, and print to
-	// stdout line by line.
-	scanner := bufio.NewScanner(userDistractorsFileObj)
-	for scanner.Scan() {
-		fmt.Println(scanner.Text())
-	}
-
-	// Open /etc/hf_predef_distractors and store it as *os.File type
-	predefDistractorsFileObj, err := os.Open(localFilePaths["pDistractors"])
-	if err != nil {
-		fmt.Println(err)
-	}
-	defer func() {
-		if err := predefDistractorsFileObj.Close(); err != nil {
-			fmt.Printf("Error closing file: %s\n", err)
+		// Initialize a new scanner, scan /etc/hf_distractors, and print to
+		// stdout line by line.
+		scanner := bufio.NewScanner(userDistractorsFileObj)
+		for scanner.Scan() {
+			fmt.Println(scanner.Text())
 		}
-	}()
-
-	// Initialize a new scanner, scan /etc/hf_predef_distractors, and print to
-	// stdout line by line.
-	scanner = bufio.NewScanner(predefDistractorsFileObj)
-	for scanner.Scan() {
-		fmt.Println(scanner.Text())
 	}
 
+	if fileExists(localFilePaths["pDistractors"]) {
+		// Open /etc/hf_predef_distractors and store it as *os.File type
+		predefDistractorsFileObj, err := os.Open(localFilePaths["pDistractors"])
+		if err != nil {
+			fmt.Println(err)
+		}
+		defer func() {
+			if err := predefDistractorsFileObj.Close(); err != nil {
+				fmt.Printf("Error closing file: %s\n", err)
+			}
+		}()
+
+		// Initialize a new scanner, scan /etc/hf_predef_distractors, and print to
+		// stdout line by line.
+		scanner := bufio.NewScanner(predefDistractorsFileObj)
+		for scanner.Scan() {
+			fmt.Println(scanner.Text())
+		}
+	}
 }
 
 // Adds predefined distractors to /etc/hf_predef_distractors file