73 lines
1.8 KiB
Go
73 lines
1.8 KiB
Go
// Copyright © 2016 Jip J. Dekker <jip@dekker.li>
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package helpers
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import (
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"errors"
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"os"
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"path/filepath"
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log "github.com/Sirupsen/logrus"
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)
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// CleanPath returns a cleaned path from a given string relative
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// to the working directory unless explicitly absolute
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func CleanPath(path string) (string, error) {
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if path == "" {
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// No given path, use working directory
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return os.Getwd()
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} else if filepath.IsAbs(path) {
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// Given path is absolute
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return filepath.Clean(path), nil
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} else {
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// Given path is a relative path
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dir, err := os.Getwd()
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if err == nil {
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return filepath.Join(dir, path), nil
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}
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return "", err
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}
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}
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// Exists checks if a file or directory exists.
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func Exists(path string) bool {
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_, err := os.Stat(path)
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if err == nil {
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return true
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}
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if !os.IsNotExist(err) {
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log.WithFields(log.Fields{"error": err, "path": path}).
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Panic("Unable to check path")
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}
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return false
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}
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// FindFileDir returns the path of the
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func FindFileDir(file string) (string, error) {
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wd, err := os.Getwd()
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if err != nil {
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return "", nil
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}
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for path := wd; path != "."; path = filepath.Dir(path) {
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if Exists(filepath.Join(path, file)) {
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return path, nil
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}
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}
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return "", &os.PathError{
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Path: wd,
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Err: errors.New("directory containing " + file + " not found"),
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}
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}
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