diff options
Diffstat (limited to 'vendor/github.com/pkg/sftp/match.go')
-rw-r--r-- | vendor/github.com/pkg/sftp/match.go | 137 |
1 files changed, 137 insertions, 0 deletions
diff --git a/vendor/github.com/pkg/sftp/match.go b/vendor/github.com/pkg/sftp/match.go new file mode 100644 index 000000000..875006afd --- /dev/null +++ b/vendor/github.com/pkg/sftp/match.go @@ -0,0 +1,137 @@ +package sftp + +import ( + "path" + "strings" +) + +// ErrBadPattern indicates a globbing pattern was malformed. +var ErrBadPattern = path.ErrBadPattern + +// Match reports whether name matches the shell pattern. +// +// This is an alias for path.Match from the standard library, +// offered so that callers need not import the path package. +// For details, see https://golang.org/pkg/path/#Match. +func Match(pattern, name string) (matched bool, err error) { + return path.Match(pattern, name) +} + +// detect if byte(char) is path separator +func isPathSeparator(c byte) bool { + return c == '/' +} + +// Split splits the path p immediately following the final slash, +// separating it into a directory and file name component. +// +// This is an alias for path.Split from the standard library, +// offered so that callers need not import the path package. +// For details, see https://golang.org/pkg/path/#Split. +func Split(p string) (dir, file string) { + return path.Split(p) +} + +// Glob returns the names of all files matching pattern or nil +// if there is no matching file. The syntax of patterns is the same +// as in Match. The pattern may describe hierarchical names such as +// /usr/*/bin/ed. +// +// Glob ignores file system errors such as I/O errors reading directories. +// The only possible returned error is ErrBadPattern, when pattern +// is malformed. +func (c *Client) Glob(pattern string) (matches []string, err error) { + if !hasMeta(pattern) { + file, err := c.Lstat(pattern) + if err != nil { + return nil, nil + } + dir, _ := Split(pattern) + dir = cleanGlobPath(dir) + return []string{Join(dir, file.Name())}, nil + } + + dir, file := Split(pattern) + dir = cleanGlobPath(dir) + + if !hasMeta(dir) { + return c.glob(dir, file, nil) + } + + // Prevent infinite recursion. See issue 15879. + if dir == pattern { + return nil, ErrBadPattern + } + + var m []string + m, err = c.Glob(dir) + if err != nil { + return + } + for _, d := range m { + matches, err = c.glob(d, file, matches) + if err != nil { + return + } + } + return +} + +// cleanGlobPath prepares path for glob matching. +func cleanGlobPath(path string) string { + switch path { + case "": + return "." + case "/": + return path + default: + return path[0 : len(path)-1] // chop off trailing separator + } +} + +// glob searches for files matching pattern in the directory dir +// and appends them to matches. If the directory cannot be +// opened, it returns the existing matches. New matches are +// added in lexicographical order. +func (c *Client) glob(dir, pattern string, matches []string) (m []string, e error) { + m = matches + fi, err := c.Stat(dir) + if err != nil { + return + } + if !fi.IsDir() { + return + } + names, err := c.ReadDir(dir) + if err != nil { + return + } + //sort.Strings(names) + + for _, n := range names { + matched, err := Match(pattern, n.Name()) + if err != nil { + return m, err + } + if matched { + m = append(m, Join(dir, n.Name())) + } + } + return +} + +// Join joins any number of path elements into a single path, separating +// them with slashes. +// +// This is an alias for path.Join from the standard library, +// offered so that callers need not import the path package. +// For details, see https://golang.org/pkg/path/#Join. +func Join(elem ...string) string { + return path.Join(elem...) +} + +// hasMeta reports whether path contains any of the magic characters +// recognized by Match. +func hasMeta(path string) bool { + return strings.ContainsAny(path, "\\*?[") +} |