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Close exclude files and check errors

This commit is contained in:
Johannes Kohnen 2017-08-01 17:20:09 +00:00
parent efc5d0699a
commit 37aad2e3aa

View File

@ -408,31 +408,7 @@ func runBackup(opts BackupOptions, gopts GlobalOptions, args []string) error {
// add patterns from file
if len(opts.ExcludeFiles) > 0 {
for _, filename := range opts.ExcludeFiles {
file, err := fs.Open(filename)
if err != nil {
Warnf("error reading exclude patterns: %v", err)
return nil
}
scanner := bufio.NewScanner(file)
for scanner.Scan() {
line := strings.TrimSpace(scanner.Text())
// ignore empty lines
if line == "" {
continue
}
// strip comments
if strings.HasPrefix(line, "#") {
continue
}
line = os.ExpandEnv(line)
opts.Excludes = append(opts.Excludes, line)
}
}
opts.Excludes = append(opts.Excludes, readExcludePatternsFromFiles(opts.ExcludeFiles)...)
}
selectFilter := func(item string, fi os.FileInfo) bool {
@ -499,3 +475,45 @@ func runBackup(opts BackupOptions, gopts GlobalOptions, args []string) error {
return nil
}
func readExcludePatternsFromFiles(excludeFiles []string) []string {
var excludes []string
for _, filename := range excludeFiles {
err := func() (err error) {
file, err := fs.Open(filename)
if err != nil {
return err
}
defer func() {
// return pre-close error if there was one
if errClose := file.Close(); err == nil {
err = errClose
}
}()
scanner := bufio.NewScanner(file)
for scanner.Scan() {
line := strings.TrimSpace(scanner.Text())
// ignore empty lines
if line == "" {
continue
}
// strip comments
if strings.HasPrefix(line, "#") {
continue
}
line = os.ExpandEnv(line)
excludes = append(excludes, line)
}
return scanner.Err()
}()
if err != nil {
Warnf("error reading exclude patterns: %v:", err)
return nil
}
}
return excludes
}