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util.go
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util.go
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/*
* Copyright 2018-2020 the original author or authors.
*
* 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
*
* https://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 octo
import (
"io/ioutil"
"os"
"path/filepath"
"github.com/rakyll/statik/fs"
_ "github.com/paketo-buildpacks/pipeline-builder/octo/statik"
)
func Exists(path string) (bool, error) {
if _, err := os.Stat(path); os.IsNotExist(err) {
return false, nil
} else if err != nil {
return false, err
} else {
return true, nil
}
}
type Predicate func(string) bool
func Find(path string, predicate Predicate) ([]string, error) {
var matches []string
err := filepath.Walk(path, func(path string, info os.FileInfo, err error) error {
if err != nil {
return err
}
if predicate(path) {
matches = append(matches, path)
}
return nil
})
return matches, err
}
var statik, _ = fs.New()
func StatikString(path string) string {
in, err := statik.Open(path)
if err != nil {
panic(err)
}
defer in.Close()
b, err := ioutil.ReadAll(in)
if err != nil {
panic(err)
}
return string(b)
}