errors.go

package main

import (
	"fmt"
	"strings"
)

type ErrCommandNotDefined struct {
	Task string
}

func (e *ErrCommandNotDefined) Error() string {
	return fmt.Sprintf("command for task '%s' is not defined", e.Task)
}

type ErrDependencyNotFound struct {
	Task       string
	Dependency string
}

func (e *ErrDependencyNotFound) Error() string {
	return fmt.Sprintf("dependency '%s' for task '%s' not found", e.Dependency, e.Task)
}

type ErrSelfDependency struct {
	Task string
}

func (e *ErrSelfDependency) Error() string {
	return fmt.Sprintf("task '%s' cannot depend on itself", e.Task)
}

type ErrCyclicDependency struct {
	Path []string
}

func (e *ErrCyclicDependency) Error() string {
	return fmt.Sprintf("cyclic dependency detected: %s", strings.Join(e.Path, " ──> "))
}