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// Copyright 2015 Matthew Holt and The Caddy 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
//
// 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.
//go:build !windows
package caddy
import (
"os"
"path/filepath"
)
// FastAbs is an optimized version of filepath.Abs for Unix systems,
// since we don't expect the working directory to ever change once
// Caddy is running. Avoid the os.Getwd() syscall overhead.
// It's overall the same as stdlib's implementation, the difference
// being cached working directory.
func FastAbs(path string) (string, error) {
if filepath.IsAbs(path) {
return filepath.Clean(path), nil
}
if wderr != nil {
return "", wderr
}
return filepath.Join(wd, path), nil
}
var wd, wderr = os.Getwd()
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