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-rw-r--r--filepath.go37
1 files changed, 37 insertions, 0 deletions
diff --git a/filepath.go b/filepath.go
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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.
+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()