Taskfile not found error shows empty path and missing --init suggestion

[semihbkgr]

Description

When running task in a directory without a Taskfile (and no Taskfile in parent directories), the error message displays an empty path and is missing the helpful suggestion to run task --init:

task: No Taskfile found at ""

The error message does not include:

• (or any of the parent directories)
• Run task --init to create a new Taskfile.

This is a regression from previous versions where the error message properly displayed the directory path being searched and included a suggestion to run task --init.

Previous Behavior

In previous versions, the error message was informative and helpful:

task: No Taskfile found at "/path/to/directory" (or any of the parent directories). Run `task --init` to create a new Taskfile.

Root Cause

The issue is caused by conflicting error handling between NewFileNode() and getRootNode():

In taskfile/node_file.go, NewFileNode() was already wrapping os.ErrNotExist with TaskfileNotFoundError:

func NewFileNode(entrypoint, dir string, opts ...NodeOption) (*FileNode, error) {
    resolvedEntrypoint, err := fsext.Search(entrypoint, dir, DefaultTaskfiles)
    if err != nil {
        if errors.Is(err, os.ErrNotExist) {
            return nil, errors.TaskfileNotFoundError{URI: entrypoint, Walk: false}
        }
        return nil, err
    }
    // ...
}

In setup.go, getRootNode() was checking for os.IsNotExist(err) to wrap the error:

func (e *Executor) getRootNode() (taskfile.Node, error) {
    node, err := taskfile.NewRootNode(e.Entrypoint, e.Dir, e.Insecure, e.Timeout)
    if os.IsNotExist(err) {  // This check fails because err is already TaskfileNotFoundError
        return nil, errors.TaskfileNotFoundError{
            URI:     fsext.DefaultDir(e.Entrypoint, e.Dir),
            Walk:    true,
            AskInit: true,
        }
    }
    // ...
}

The problem: os.IsNotExist(err) returns false when err is TaskfileNotFoundError (not os.ErrNotExist), so the error is returned as-is with an empty or incorrect URI and without the AskInit suggestion.

Steps to Reproduce

1. Navigate to an empty directory (with no Taskfile in parent directories)
2. Run task
3. Observe the error message shows an empty path and doesn't suggest task --init

Version

main

Operating system

macOS

Experiments Enabled

No response

Example Taskfile