| // 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) |
| } |
