Make parseAPTConfigLine public

We already have a way to go from a repository to a line, via
`Repository.APTConfigLine`. There is a valid usecase to have the
reverse, go from a line to a Repository: for instance some software will
expect such a line as input/output (Ansible's apt_repository's repo for
instance). Given that it's unlikely that the implementation of it will
see breaking changes, I don't see any reason to keep it private.

Author: mickael-carl

repos.go

@@ -107,7 +107,7 @@ func (r *Repository) APTConfigLine() string {
 
 var aptConfigLineRegexp = regexp.MustCompile(`^(# )?(deb|deb-src)(?: \[(.*)\])? ([^ ]+) ([^ ]+) ([^#\n]+)(?: +# *(.*))?$`)
 
-func parseAPTConfigLine(line string) *Repository {
+func ParseAPTConfigLine(line string) *Repository {
 	match := aptConfigLineRegexp.FindAllStringSubmatch(line, -1)
 	if len(match) == 0 || len(match[0]) < 6 {
 		return nil
@@ -134,7 +134,7 @@ func parseAPTConfigFile(configPath string) (RepositoryList, error) {
 	res := RepositoryList{}
 	for scanner.Scan() {
 		line := scanner.Text()
-		repo := parseAPTConfigLine(line)
+		repo := ParseAPTConfigLine(line)
 		if repo != nil {
 			repo.configFile = configPath
 			res = append(res, repo)
@@ -185,9 +185,9 @@ func AddRepository(repo *Repository, configFolderPath string) error {
 
 	// Add to the "managed.list" file
 	managedPath := filepath.Join(configFolderPath, "sources.list.d", "managed.list")
-	f, err := os.OpenFile(managedPath, os.O_APPEND|os.O_WRONLY, 0644)
+	f, err := os.OpenFile(managedPath, os.O_APPEND|os.O_WRONLY, 0o644)
 	if os.IsNotExist(err) {
-		f, err = os.OpenFile(managedPath, os.O_CREATE|os.O_WRONLY, 0644)
+		f, err = os.OpenFile(managedPath, os.O_CREATE|os.O_WRONLY, 0o644)
 	}
 	if err != nil {
 		return fmt.Errorf("opening %s: %s", managedPath, err)
@@ -226,7 +226,7 @@ func RemoveRepository(repo *Repository, configFolderPath string) error {
 	newContent := ""
 	for scanner.Scan() {
 		line := scanner.Text()
-		r := parseAPTConfigLine(line)
+		r := ParseAPTConfigLine(line)
 		if r != nil && r.Equals(repo) {
 			// Filter repo configs that match the repo to be removed
 			continue
@@ -269,7 +269,7 @@ func EditRepository(old *Repository, newRepo *Repository, configFolderPath strin
 	newContent := ""
 	for scanner.Scan() {
 		line := scanner.Text()
-		r := parseAPTConfigLine(line)
+		r := ParseAPTConfigLine(line)
 		if r.Equals(old) {
 			// Write the new config to replace the old one
 			newContent += newRepo.APTConfigLine() + "\n"
@@ -291,7 +291,7 @@ func replaceFile(path string, newContent []byte) error {
 	backupPath := path + ".save"
 
 	// Create the new version of the file
-	err := os.WriteFile(newPath, newContent, 0600)
+	err := os.WriteFile(newPath, newContent, 0o600)
 	if err != nil {
 		return fmt.Errorf("creating replacement file for %s: %s", newPath, err)
 	}