Implements running from parent directory #298

cmd/task/task.go

@@ -145,7 +145,6 @@ func main() {
 	v, err := e.Taskfile.ParsedVersion()
 	if err != nil {
 		log.Fatal(err)
-		return
 	}
 
 	if list {

docs/installation.md

@@ -108,7 +108,12 @@ This installation method is community owned.
 First, make sure you have [Go][go] properly installed and setup.
 
 Task requires [Go Modules](https://github.com/golang/go/wiki/Modules) and
-doesn't officially support installing via `go get` anymore.
+can be installed got `go get` given that you have a recent version of [Go][go].
+
+```bash
+go get -u github.com/go-task/task/cmd/task
+```
+
 
 Installing in another directory:
 

task_test.go

@@ -436,6 +436,21 @@ func TestLabelInStatus(t *testing.T) {
 	}
 }
 
+func TestTaskfileParentDirectory(t *testing.T) {
+	const dir = "testdata/walk_up/child1/child2"
+
+	var buff bytes.Buffer
+
+	e := task.Executor{
+		Dir:    dir,
+		Stdout: &buff,
+		Stderr: &buff,
+	}
+	assert.NoError(t, e.Setup())
+	assert.NoError(t, e.Run(context.Background(), taskfile.Call{Task: "hello"}))
+	assert.Equal(t, "Hello World from Task!\n", buff.String())
+}
+
 func TestLabelWithVariableExpansion(t *testing.T) {
 	const dir = "testdata/label_var"
 

taskfile/read/taskfile.go

@@ -6,6 +6,7 @@ import (
 	"os"
 	"path/filepath"
 	"runtime"
+	"strings"
 
 	"github.com/go-task/task/v3/internal/templater"
 	"github.com/go-task/task/v3/taskfile"
@@ -23,9 +24,12 @@ var (
 
 // Taskfile reads a Taskfile for a given directory
 func Taskfile(dir string, entrypoint string) (*taskfile.Taskfile, error) {
-	path := filepath.Join(dir, entrypoint)
-	if _, err := os.Stat(path); err != nil {
-		return nil, fmt.Errorf(`task: No Taskfile found on "%s". Use "task --init" to create a new one`, path)
+	// we need the full path to iterate
+	dir, _ = filepath.Abs(dir)
+
+	path, err := findPath(dir, entrypoint)
+	if err != nil {
+		return nil, err
 	}
 	t, err := readTaskfile(path)
 	if err != nil {
@@ -133,6 +137,25 @@ func Taskfile(dir string, entrypoint string) (*taskfile.Taskfile, error) {
 	return t, nil
 }
 
+func findPath(dir string, entrypoint string) (path string, err error) {
+	found := false
+	anker := filepath.Join(dir, entrypoint)
+	for !found {
+		path = filepath.Join(dir, entrypoint)
+		if _, err := os.Stat(path); err != nil {
+			if dir == "/" {
+				return "", fmt.Errorf(`task: No Taskfile found on "%s". Use "task --init" to create a new one`, anker)
+			}
+			dirFragments := strings.Split(dir, string(os.PathSeparator))
+			dir = "/" + strings.Join(dirFragments[1:len(dirFragments)-1], string(os.PathSeparator))
+
+		} else {
+			found = true
+		}
+	}
+	return
+}
+
 func readTaskfile(file string) (*taskfile.Taskfile, error) {
 	f, err := os.Open(file)
 	if err != nil {

testdata/walk_up/Taskfile.yml

@@ -0,0 +1,7 @@
+version: '3'
+
+tasks:
+  hello:
+    cmds:
+      - echo 'Hello World from Task!'
+    silent: true