feat: add scaffold for plugin

examples/demo.json

@@ -3,9 +3,9 @@
         "name": "demo with complex mechanisms",
         "base_url": "https://postman-echo.com",
         "variables": {
-            "a": 12.3,
+            "a": "${sum(10, 2.3)}",
             "b": 3.45,
-            "n": 5,
+            "n": "${sum_ints(1, 2, 2)}",
             "varFoo1": "${gen_random_string($n)}",
             "varFoo2": "${max($a, $b)}"
         }

examples/demo.yaml

@@ -2,9 +2,9 @@ config:
     name: demo with complex mechanisms
     base_url: https://postman-echo.com
     variables:
-        a: 12.3
+        a: ${sum(10, 2.3)}
         b: 3.45
-        "n": 5
+        "n": ${sum_ints(1, 2, 2)}
         varFoo1: ${gen_random_string($n)}
         varFoo2: ${max($a, $b)}
 teststeps:

internal/scaffold/demo.go

@@ -6,8 +6,8 @@ var demoTestCase = &hrp.TestCase{
 	Config: hrp.NewConfig("demo with complex mechanisms").
 		SetBaseURL("https://postman-echo.com").
 		WithVariables(map[string]interface{}{ // global level variables
-			"n":       5,
+			"n":       "${sum_ints(1, 2, 2)}",
-			"a":       12.3,
+			"a":       "${sum(10, 2.3)}",
 			"b":       3.45,
 			"varFoo1": "${gen_random_string($n)}",
 			"varFoo2": "${max($a, $b)}", // 12.3; eval with built-in function
@@ -56,6 +56,50 @@ var demoTestCase = &hrp.TestCase{
 	},
 }
 
+// debugtalk.go
+var demoPlugin = `package main
+
+import (
+	"fmt"
+
+	"github.com/httprunner/hrp/plugin"
+)
+
+func SumTwoInt(a, b int) int {
+	return a + b
+}
+
+func SumInts(args ...int) int {
+	var sum int
+	for _, arg := range args {
+		sum += arg
+	}
+	return sum
+}
+
+func Sum(args ...interface{}) (interface{}, error) {
+	var sum float64
+	for _, arg := range args {
+		switch v := arg.(type) {
+		case int:
+			sum += float64(v)
+		case float64:
+			sum += v
+		default:
+			return nil, fmt.Errorf("unexpected type: %T", arg)
+		}
+	}
+	return sum, nil
+}
+
+func main() {
+	plugin.Register("sum_ints", SumInts)
+	plugin.Register("sum_two_int", SumTwoInt)
+	plugin.Register("sum", Sum)
+	plugin.Serve()
+}
+`
+
 // .gitignore
 var demoIgnoreContent = `.env
 reports/*
@@ -64,9 +108,13 @@ reports/*
 .idea/
 .DS_Store
 output/
+
+# plugin
+debugtalk.bin
+debugtalk.so
 `
 
 // .env
 var demoEnvContent = `USERNAME=debugtalk
-"PASSWORD=123456
+PASSWORD=123456
 `

internal/scaffold/demo_test.go

@@ -25,6 +25,7 @@ func TestGenDemoTestCase(t *testing.T) {
 }
 
 func Example_demo() {
+	demoTestCase.Config.ToStruct().Path = "../../examples/debugtalk.bin"
 	err := hrp.NewRunner(nil).Run(demoTestCase) // hrp.Run(demoTestCase)
 	fmt.Println(err)
 	// Output:

internal/scaffold/main.go

@@ -4,6 +4,7 @@ import (
 	"fmt"
 	"io/ioutil"
 	"os"
+	"os/exec"
 	"path"
 
 	"github.com/httprunner/hrp/internal/ga"
@@ -36,6 +37,9 @@ func CreateScaffold(projectName string) error {
 	if err := createFolder(path.Join(projectName, "testcases")); err != nil {
 		return err
 	}
+	if err := createFolder(path.Join(projectName, "plugin")); err != nil {
+		return err
+	}
 	if err := createFolder(path.Join(projectName, "reports")); err != nil {
 		return err
 	}
@@ -53,6 +57,18 @@ func CreateScaffold(projectName string) error {
 		return err
 	}
 
+	// create debugtalk.go
+	pluginFile := path.Join(projectName, "plugin", "debugtalk.go")
+	if err := createFile(pluginFile, demoPlugin); err != nil {
+		return err
+	}
+	cmd := exec.Command("go", "build",
+		"-o", path.Join(projectName, "debugtalk.bin"),
+		pluginFile)
+	if err := cmd.Run(); err != nil {
+		log.Error().Err(err).Msg("build plugin debugtalk.bin failed")
+	}
+
 	// create .gitignore
 	if err := createFile(path.Join(projectName, ".gitignore"), demoIgnoreContent); err != nil {
 		return err