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taskfile.go
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taskfile.go
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package read
import (
"errors"
"fmt"
"os"
"path/filepath"
"runtime"
"github.com/go-task/task/internal/taskfile"
"gopkg.in/yaml.v2"
)
// ErrIncludedTaskfilesCantHaveIncludes is returned when a included Taskfile contains includes
var ErrIncludedTaskfilesCantHaveIncludes = errors.New("task: Included Taskfiles can't have includes. Please, move the include to the main Taskfile")
// Taskfile reads a Taskfile for a given directory
func Taskfile(dir string) (*taskfile.Taskfile, error) {
path := filepath.Join(dir, "Taskfile.yml")
if _, err := os.Stat(path); err != nil {
return nil, fmt.Errorf(`No Taskfile.yml found. Use "task --init" to create a new one`)
}
t, err := readTaskfile(path)
if err != nil {
return nil, err
}
for namespace, path := range t.Includes {
path = filepath.Join(dir, path)
info, err := os.Stat(path)
if err != nil {
return nil, err
}
if info.IsDir() {
path = filepath.Join(path, "Taskfile.yml")
}
includedTaskfile, err := readTaskfile(path)
if err != nil {
return nil, err
}
if len(includedTaskfile.Includes) > 0 {
return nil, ErrIncludedTaskfilesCantHaveIncludes
}
if err = taskfile.Merge(t, includedTaskfile, namespace); err != nil {
return nil, err
}
}
path = filepath.Join(dir, fmt.Sprintf("Taskfile_%s.yml", runtime.GOOS))
if _, err = os.Stat(path); err == nil {
osTaskfile, err := readTaskfile(path)
if err != nil {
return nil, err
}
if err = taskfile.Merge(t, osTaskfile); err != nil {
return nil, err
}
}
for name, task := range t.Tasks {
task.Task = name
}
return t, nil
}
func readTaskfile(file string) (*taskfile.Taskfile, error) {
f, err := os.Open(file)
if err != nil {
return nil, err
}
var t taskfile.Taskfile
return &t, yaml.NewDecoder(f).Decode(&t)
}