Refactor proctor binaries to implement testRunner interface.

Shared code among proctor-*.go files has been refactored
into common/common.go. The common package is imported in
each proctor binary and a struct is created to implement
the testRunner interface defined in common.go. This allows
for the proctor binaries to be updated without having to
copy/paste the same code across all files. There are no
usage or functionality changes.

PiperOrigin-RevId: 260967080

2 files changed, 12 insertions, 42 deletions

diff --git a/test/runtimes/python/BUILD b/test/runtimes/python/BUILD
index 501f77d63..37fd6a0f2 100644
--- a/test/runtimes/python/BUILD
+++ b/test/runtimes/python/BUILD
@@ -5,4 +5,5 @@ package(licenses = ["notice"])
 go_binary(
     name = "proctor-python",
     srcs = ["proctor-python.go"],
+    deps = ["//test/runtimes/common"],
 )
diff --git a/test/runtimes/python/proctor-python.go b/test/runtimes/python/proctor-python.go
index 73c8deb49..3f83f3d70 100644
--- a/test/runtimes/python/proctor-python.go
+++ b/test/runtimes/python/proctor-python.go
@@ -16,53 +16,31 @@
 package main
 
 import (
-	"flag"
 	"fmt"
 	"log"
 	"os"
 	"os/exec"
 	"path/filepath"
 	"regexp"
+
+	"gvisor.dev/gvisor/test/runtimes/common"
 )
 
 var (
-	list    = flag.Bool("list", false, "list all available tests")
-	test    = flag.String("test", "", "run a single test from the list of available tests")
-	version = flag.Bool("v", false, "print out the version of node that is installed")
-
 	dir       = os.Getenv("LANG_DIR")
 	testRegEx = regexp.MustCompile(`^test_.+\.py$`)
 )
 
-func main() {
-	flag.Parse()
+type pythonRunner struct {
+}
 
-	if *list && *test != "" {
-		flag.PrintDefaults()
-		os.Exit(1)
-	}
-	if *list {
-		tests, err := listTests()
-		if err != nil {
-			log.Fatalf("Failed to list tests: %v", err)
-		}
-		for _, test := range tests {
-			fmt.Println(test)
-		}
-		return
-	}
-	if *version {
-		fmt.Println("Python version: ", os.Getenv("LANG_VER"), " is installed.")
-		return
-	}
-	if *test != "" {
-		runTest(*test)
-		return
+func main() {
+	if err := common.LaunchFunc(pythonRunner{}); err != nil {
+		log.Fatalf("Failed to start: %v", err)
 	}
-	runAllTests()
 }
 
-func listTests() ([]string, error) {
+func (p pythonRunner) ListTests() ([]string, error) {
 	var testSlice []string
 	root := filepath.Join(dir, "Lib/test")
 
@@ -88,21 +66,12 @@ func listTests() ([]string, error) {
 	return testSlice, nil
 }
 
-func runTest(test string) {
+func (p pythonRunner) RunTest(test string) error {
 	args := []string{"-m", "test", test}
 	cmd := exec.Command(filepath.Join(dir, "python"), args...)
 	cmd.Stdout, cmd.Stderr = os.Stdout, os.Stderr
 	if err := cmd.Run(); err != nil {
-		log.Fatalf("Failed to run: %v", err)
-	}
-}
-
-func runAllTests() {
-	tests, err := listTests()
-	if err != nil {
-		log.Fatalf("Failed to list tests: %v", err)
-	}
-	for _, test := range tests {
-		runTest(test)
+		return fmt.Errorf("failed to run: %v", err)
 	}
+	return nil
 }