Add project-path flag to runner

Author: lukaszcl

tools/flakeguard/cmd/run.go

@@ -15,6 +15,7 @@ var RunTestsCmd = &cobra.Command{
 	Use:   "run",
 	Short: "Run tests to check if they are flaky",
 	Run: func(cmd *cobra.Command, args []string) {
+		projectPath, _ := cmd.Flags().GetString("project-path")
 		testPackagesJson, _ := cmd.Flags().GetString("test-packages-json")
 		testPackagesArg, _ := cmd.Flags().GetStringSlice("test-packages")
 		runCount, _ := cmd.Flags().GetInt("run-count")
@@ -34,10 +35,11 @@ var RunTestsCmd = &cobra.Command{
 		}
 
 		runner := runner.Runner{
-			Verbose:  true,
-			RunCount: runCount,
-			UseRace:  useRace,
-			FailFast: threshold == 1.0, // Fail test on first test run if threshold is 1.0
+			ProjectPath: projectPath,
+			Verbose:     true,
+			RunCount:    runCount,
+			UseRace:     useRace,
+			FailFast:    threshold == 1.0, // Fail test on first test run if threshold is 1.0
 		}
 
 		testResults, err := runner.RunTests(testPackages)
@@ -82,6 +84,7 @@ var RunTestsCmd = &cobra.Command{
 }
 
 func init() {
+	RunTestsCmd.Flags().StringP("project-path", "r", ".", "The path to the Go project. Default is the current directory. Useful for subprojects.")
 	RunTestsCmd.Flags().String("test-packages-json", "", "JSON-encoded string of test packages")
 	RunTestsCmd.Flags().StringSlice("test-packages", nil, "Comma-separated list of test packages to run")
 	RunTestsCmd.Flags().IntP("run-count", "c", 1, "Number of times to run the tests")

tools/flakeguard/runner/runner.go

@@ -14,10 +14,11 @@ import (
 )
 
 type Runner struct {
-	Verbose  bool // If true, provides detailed logging.
-	RunCount int  // Number of times to run the tests.
-	UseRace  bool // Enable race detector.
-	FailFast bool // Stop on first test failure.
+	ProjectPath string // Path to the Go project directory.
+	Verbose     bool   // If true, provides detailed logging.
+	RunCount    int    // Number of times to run the tests.
+	UseRace     bool   // Enable race detector.
+	FailFast    bool   // Stop on first test failure.
 }
 
 // RunTests executes the tests for each provided package and aggregates all results.
@@ -58,6 +59,7 @@ func (r *Runner) runTestPackage(testPackage string) ([]byte, bool, error) {
 		log.Printf("Running command: go %s\n", strings.Join(args, " "))
 	}
 	cmd := exec.Command("go", args...)
+	cmd.Dir = r.ProjectPath
 
 	// cmd.Env = append(cmd.Env, "GOFLAGS=-extldflags=-Wl,-ld_classic") // Ensure modules are enabled
 	var out bytes.Buffer