Detect if image is configured to use pydevd (#72)

Author: briandealwis

python/helper-image/launcher/launcher.go

@@ -173,6 +173,10 @@ func (pc *pythonContext) alreadyConfigured() bool {
 			logrus.Debug("already configured to use ptvsd")
 			return true
 		}
+		if (pc.args[1] == "-m" && len(pc.args) > 2 && pc.args[2] == "pydevd") || pc.args[1] == "-mpydevd" {
+			logrus.Debug("already configured to use pydevd")
+			return true
+		}
 	}
 	return false
 }

python/helper-image/launcher/launcher_test.go

@@ -112,6 +112,8 @@ func TestAlreadyConfigured(t *testing.T) {
 		{"python with app module 2", pythonContext{args: []string{"python", "-m", "app"}}, false},
 		{"configured for pydevd", pythonContext{args: []string{"pydevd", "--server", "app"}}, true},
 		{"configured for pydevd", pythonContext{args: []string{"/dbg/pydevd/bin/pydevd", "--server", "app"}}, true},
+		{"configured for pydevd", pythonContext{args: []string{"python", "-mpydevd", "--server", "app"}}, true},
+		{"configured for pydevd", pythonContext{args: []string{"python3.8", "-m", "pydevd", "--server", "app"}}, true},
 		{"python with debugpy module", pythonContext{args: []string{"python", "-mdebugpy"}}, true},
 		{"versioned python with debugpy module", pythonContext{args: []string{"/usr/bin/python3.9", "-m", "debugpy"}}, true},
 		{"python with ptvsd module", pythonContext{args: []string{"python", "-mptvsd"}}, true},