forked from SUSE/container-feeder
/
walker.go
76 lines (65 loc) · 1.81 KB
/
walker.go
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/*
* container-feeder: import Linux container images delivered as RPMs
* Copyright 2017 SUSE LLC
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package main
import (
"os"
"path/filepath"
"strings"
log "github.com/Sirupsen/logrus"
)
// List the files inside of a directory.
// Note well: doesn't walk recursively
// It's possible to list only the files matching a given extension,
// remember to add the "." (eg: ".mp3")
type Walker struct {
Root string
Extension string // only list files with this extension
Files []string
VerifyFiles bool
}
func NewWalker(path, extension string) *Walker {
return &Walker{
Files: []string{},
Extension: extension,
Root: path,
VerifyFiles: true,
}
}
func (w *Walker) Scan(path string, f os.FileInfo, err error) error {
if err != nil {
return err
}
if f.IsDir() && path != w.Root {
return filepath.SkipDir
}
if path != w.Root {
add := true
if w.Extension != "" && strings.ToLower(w.Extension) != strings.ToLower(filepath.Ext(path)) {
add = false
} else if w.VerifyFiles {
var verifyErr error
add, verifyErr = Verify(path)
if verifyErr != nil {
log.Warn("Ignoring file %s because verification failed %v", path, verifyErr)
}
}
if add {
w.Files = append(w.Files, filepath.Base(path))
}
}
return nil
}