Merge pull request #57 from suzuki-shunsuke/feat/suppor-to-separate-i…

…nput

feat: support to read task.input and task.output from a file

README.md

@@ -337,6 +337,16 @@ If the `phase.condtion.exit` is true, the build is finished and subsequent phase
 The configuration file path can be specified with the `--config (-c)` option.
 If the confgiuration file path isn't specified, the file named `.buildflow.yml` or `.buildflow.yaml` would be searched from the current directory to the root directory.
 
+## Separate Configuration file
+
+* phase.import
+* task.import
+* task.input_file
+* task.output_file
+* command.command_file
+* command.env[].value_file
+* write_file.template_file
+
 ## Configuration Reference
 
 ```yaml

pkg/config/task.go

@@ -24,6 +24,8 @@ type Task struct {
 	Meta          map[string]interface{}
 	Output        Script
 	Input         Script
+	InputFile     string `yaml:"input_file"`
+	OutputFile    string `yaml:"output_file"`
 	Import        string
 }
 

pkg/controller/controller.go

@@ -14,6 +14,7 @@ import (
 	"github.com/suzuki-shunsuke/buildflow/pkg/constant"
 	"github.com/suzuki-shunsuke/buildflow/pkg/domain"
 	"github.com/suzuki-shunsuke/buildflow/pkg/execute"
+	"github.com/suzuki-shunsuke/buildflow/pkg/expr"
 	gh "github.com/suzuki-shunsuke/buildflow/pkg/github"
 	"github.com/suzuki-shunsuke/buildflow/pkg/template"
 	"github.com/suzuki-shunsuke/go-dataeq/dataeq"
@@ -388,6 +389,25 @@ func (ctrl Controller) readTemplateFile(p, wd string, tpl *config.Template) erro
 	return nil
 }
 
+func (ctrl Controller) readScript(p, wd string, scr *config.Script) error {
+	if p == "" {
+		return nil
+	}
+	if !filepath.IsAbs(p) {
+		p = filepath.Join(wd, p)
+	}
+	result, err := ctrl.FileReader.Read(p)
+	if err != nil {
+		return err
+	}
+	if prog, err := expr.New(result.Text); err != nil {
+		return err
+	} else {
+		scr.Prog = prog
+	}
+	return nil
+}
+
 func (ctrl Controller) ReadExternalFiles(ctx context.Context, wd string) error { //nolint:gocognit
 	for i, phase := range ctrl.Config.Phases {
 		for j, task := range phase.Tasks {
@@ -420,6 +440,12 @@ func (ctrl Controller) ReadExternalFiles(ctx context.Context, wd string) error {
 					return err
 				}
 			}
+			if err := ctrl.readScript(task.InputFile, wd, &task.Input); err != nil {
+				return err
+			}
+			if err := ctrl.readScript(task.OutputFile, wd, &task.Output); err != nil {
+				return err
+			}
 			phase.Tasks[j] = task
 		}
 		ctrl.Config.Phases[i] = phase