mirror of https://github.com/harness/drone.git
90 lines
2.2 KiB
Go
90 lines
2.2 KiB
Go
// Copyright 2022 Harness Inc. All rights reserved.
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// Use of this source code is governed by the Polyform Free Trial License
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// that can be found in the LICENSE.md file for this repository.
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package paths
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import (
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"errors"
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"strings"
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"github.com/harness/gitness/types"
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)
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var (
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ErrPathEmpty = errors.New("path is empty")
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)
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// DisectLeaf splits a path into its parent path and the leaf name
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// e.g. space1/space2/space3 -> (space1/space2, space3, nil).
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func DisectLeaf(path string) (string, string, error) {
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path = strings.Trim(path, types.PathSeparator)
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if path == "" {
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return "", "", ErrPathEmpty
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}
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i := strings.LastIndex(path, types.PathSeparator)
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if i == -1 {
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return "", path, nil
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}
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return path[:i], path[i+1:], nil
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}
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// DisectRoot splits a path into its root space and sub-path
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// e.g. space1/space2/space3 -> (space1, space2/space3, nil).
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func DisectRoot(path string) (string, string, error) {
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path = strings.Trim(path, types.PathSeparator)
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if path == "" {
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return "", "", ErrPathEmpty
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}
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i := strings.Index(path, types.PathSeparator)
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if i == -1 {
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return path, "", nil
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}
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return path[:i], path[i+1:], nil
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}
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/*
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* Concatinate two paths together (takes care of leading / trailing '/')
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* e.g. (space1/, /space2/) -> space1/space2
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*
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* NOTE: "//" is not a valid path, so all '/' will be trimmed.
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*/
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func Concatinate(path1 string, path2 string) string {
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path1 = strings.Trim(path1, types.PathSeparator)
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path2 = strings.Trim(path2, types.PathSeparator)
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if path1 == "" {
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return path2
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} else if path2 == "" {
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return path1
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}
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return path1 + types.PathSeparator + path2
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}
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// Segments returns all segments of the path
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// e.g. /space1/space2/space3 -> [space1, space2, space3].
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func Segments(path string) []string {
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path = strings.Trim(path, types.PathSeparator)
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return strings.Split(path, types.PathSeparator)
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}
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// IsAncesterOf returns true iff 'path' is an ancestor of 'other' or they are the same.
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// e.g. other = path(/.*)
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func IsAncesterOf(path string, other string) bool {
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path = strings.Trim(path, types.PathSeparator)
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other = strings.Trim(other, types.PathSeparator)
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// add "/" to both to handle space1/inner and space1/in
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return strings.Contains(
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other+types.PathSeparator,
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path+types.PathSeparator,
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)
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}
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