Remove path based task lookup

Signed-off-by: Helder Correia <174525+helderco@users.noreply.github.com>

plan/task/task.go

@@ -4,7 +4,6 @@ import (
 	"context"
 	"errors"
 	"fmt"
-	"strings"
 	"sync"
 
 	"cuelang.org/go/cue"
@@ -21,10 +20,6 @@ var (
 		cue.Str("$dagger"),
 		cue.Str("task"),
 		cue.Hid("_name", pkg.DaggerPackage))
-	lookups = []LookupFunc{
-		defaultLookup,
-		pathLookup,
-	}
 )
 
 // State is the state of the task.
@@ -38,7 +33,6 @@ const (
 )
 
 type NewFunc func() Task
-type LookupFunc func(*compiler.Value) (Task, error)
 
 type Task interface {
 	Run(ctx context.Context, pctx *plancontext.Context, s solver.Solver, v *compiler.Value) (*compiler.Value, error)
@@ -66,26 +60,13 @@ func New(typ string) Task {
 }
 
 func Lookup(v *compiler.Value) (Task, error) {
-	for _, lookup := range lookups {
-		t, err := lookup(v)
-		if err != nil {
-			return nil, err
-		}
-		if t != nil {
-			return t, nil
-		}
-	}
-	return nil, ErrNotTask
-}
-
-func defaultLookup(v *compiler.Value) (Task, error) {
 	if v.Kind() != cue.StructKind {
-		return nil, nil
+		return nil, ErrNotTask
 	}
 
 	typ := v.LookupPath(typePath)
 	if !typ.Exists() {
-		return nil, nil
+		return nil, ErrNotTask
 	}
 
 	typeString, err := typ.String()
@@ -100,46 +81,3 @@ func defaultLookup(v *compiler.Value) (Task, error) {
 
 	return t, nil
 }
-
-func pathLookup(v *compiler.Value) (Task, error) {
-	selectors := v.Path().Selectors()
-
-	// The `actions` field won't have any path based tasks since it's in user land
-	if len(selectors) == 0 || selectors[0].String() == "actions" {
-		return nil, nil
-	}
-
-	// Try an exact match first
-	if t := New(v.Path().String()); t != nil {
-		return t, nil
-	}
-
-	// FIXME: is there a way to avoid having to loop here?
-	var t Task
-	tasks.Range(func(key, value interface{}) bool {
-		if matchPathMask(selectors, key.(string)) {
-			fn := value.(NewFunc)
-			t = fn()
-			return false
-		}
-		return true
-	})
-	return t, nil
-}
-
-func matchPathMask(sels []cue.Selector, mask string) bool {
-	parts := strings.Split(mask, ".")
-	if len(sels) != len(parts) {
-		return false
-	}
-	for i, sel := range sels {
-		// use a '*' in a path mask part to match any selector
-		if parts[i] == "*" {
-			continue
-		}
-		if sel.String() != parts[i] {
-			return false
-		}
-	}
-	return true
-}