| // Copyright 2026 The Go Authors. All rights reserved. | |
| // Use of this source code is governed by a BSD-style | |
| // license that can be found in the LICENSE file. | |
| package exec | |
| // LookPath searches for an executable named file in the current path, | |
| // following the conventions of the host operating system. | |
| // If file contains a slash, it is tried directly and the default path is not consulted. | |
| // Otherwise, on success the result is an absolute path. | |
| // | |
| // LookPath returns an error satisfying [errors.Is](err, [ErrDot]) | |
| // if the resolved path is relative to the current directory. | |
| // See the package documentation for more details. | |
| // | |
| // LookPath looks for an executable named file in the | |
| // directories named by the PATH environment variable, | |
| // except as described below. | |
| // | |
| // - On Windows, the file must have an extension named by | |
| // the PATHEXT environment variable. | |
| // When PATHEXT is unset, the file must have | |
| // a ".com", ".exe", ".bat", or ".cmd" extension. | |
| // - On Plan 9, LookPath consults the path environment variable. | |
| // If file begins with "/", "#", "./", or "../", it is tried | |
| // directly and the path is not consulted. | |
| // - On Wasm, LookPath always returns an error. | |
| func LookPath(file string) (string, error) { | |
| return lookPath(file) | |
| } | |