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87 lines
1.8 KiB
87 lines
1.8 KiB
package util
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import (
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"path/filepath"
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"strings"
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)
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type FullPath string
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func NewFullPath(dir, name string) FullPath {
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name = strings.TrimSuffix(name, "/")
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return FullPath(dir).Child(name)
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}
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func (fp FullPath) DirAndName() (string, string) {
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dir, name := filepath.Split(string(fp))
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name = strings.ToValidUTF8(name, "?")
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if dir == "/" {
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return dir, name
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}
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if len(dir) < 1 {
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return "/", ""
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}
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return dir[:len(dir)-1], name
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}
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func (fp FullPath) Name() string {
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_, name := filepath.Split(string(fp))
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name = strings.ToValidUTF8(name, "?")
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return name
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}
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func (fp FullPath) IsLongerFileName(maxFilenameLength uint32) bool {
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if maxFilenameLength == 0 {
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return false
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}
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return uint32(len([]byte(fp.Name()))) > maxFilenameLength
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}
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func (fp FullPath) Child(name string) FullPath {
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dir := string(fp)
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noPrefix := name
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if strings.HasPrefix(name, "/") {
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noPrefix = name[1:]
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}
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if strings.HasSuffix(dir, "/") {
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return FullPath(dir + noPrefix)
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}
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return FullPath(dir + "/" + noPrefix)
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}
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// AsInode an in-memory only inode representation
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func (fp FullPath) AsInode(unixTime int64) uint64 {
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inode := uint64(HashStringToLong(string(fp)))
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inode = inode + uint64(unixTime)*37
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return inode
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}
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// split, but skipping the root
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func (fp FullPath) Split() []string {
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if fp == "" || fp == "/" {
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return []string{}
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}
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return strings.Split(string(fp)[1:], "/")
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}
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func Join(names ...string) string {
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return filepath.ToSlash(filepath.Join(names...))
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}
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func JoinPath(names ...string) FullPath {
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return FullPath(Join(names...))
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}
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func (fp FullPath) IsUnder(other FullPath) bool {
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if other == "/" {
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return true
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}
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return strings.HasPrefix(string(fp), string(other)+"/")
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}
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func StringSplit(separatedValues string, sep string) []string {
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if separatedValues == "" {
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return nil
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}
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return strings.Split(separatedValues, sep)
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}
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