예제 #1
0
// Cleanpatterns takes a slice of patterns returns a new
// slice of patterns cleaned with filepath.Clean, stripped
// of any empty patterns and lets the caller know whether the
// slice contains any exception patterns (prefixed with !).
func CleanPatterns(patterns []string) ([]string, [][]string, bool, error) {
	// Loop over exclusion patterns and:
	// 1. Clean them up.
	// 2. Indicate whether we are dealing with any exception rules.
	// 3. Error if we see a single exclusion marker on it's own (!).
	cleanedPatterns := []string{}
	patternDirs := [][]string{}
	exceptions := false
	for _, pattern := range patterns {
		// Eliminate leading and trailing whitespace.
		pattern = strings.TrimSpace(pattern)
		if Empty(pattern) {
			continue
		}
		if Exclusion(pattern) {
			if len(pattern) == 1 {
				logrus.Errorf("Illegal exclusion pattern: %s", pattern)
				return nil, nil, false, errors.New("Illegal exclusion pattern: !")
			}
			exceptions = true
		}
		pattern = filepath.Clean(pattern)
		cleanedPatterns = append(cleanedPatterns, pattern)
		if Exclusion(pattern) {
			pattern = pattern[1:]
		}
		patternDirs = append(patternDirs, strings.Split(pattern, "/"))
	}

	return cleanedPatterns, patternDirs, exceptions, nil
}
예제 #2
0
func GetTotalUsedFds() int {
	if fds, err := ioutil.ReadDir(fmt.Sprintf("/proc/%d/fd", os.Getpid())); err != nil {
		logrus.Errorf("Error opening /proc/%d/fd: %s", os.Getpid(), err)
	} else {
		return len(fds)
	}
	return -1
}
예제 #3
0
// Matches is basically the same as fileutils.Matches() but optimized for archive.go.
// It will assume that the inputs have been preprocessed and therefore the function
// doen't need to do as much error checking and clean-up. This was done to avoid
// repeating these steps on each file being checked during the archive process.
// The more generic fileutils.Matches() can't make these assumptions.
func OptimizedMatches(file string, patterns []string, patDirs [][]string) (bool, error) {
	matched := false
	parentPath := filepath.Dir(file)
	parentPathDirs := strings.Split(parentPath, "/")

	for i, pattern := range patterns {
		negative := false

		if Exclusion(pattern) {
			negative = true
			pattern = pattern[1:]
		}

		match, err := filepath.Match(pattern, file)
		if err != nil {
			logrus.Errorf("Error matching: %s (pattern: %s)", file, pattern)
			return false, err
		}

		if !match && parentPath != "." {
			// Check to see if the pattern matches one of our parent dirs.
			if len(patDirs[i]) <= len(parentPathDirs) {
				match, _ = filepath.Match(strings.Join(patDirs[i], "/"),
					strings.Join(parentPathDirs[:len(patDirs[i])], "/"))
			}
		}

		if match {
			matched = !negative
		}
	}

	if matched {
		logrus.Debugf("Skipping excluded path: %s", file)
	}
	return matched, nil
}