Start adding support for writing measurements to disk

internal/cli/run/run.go

@@ -1,6 +1,8 @@
 package run
 
 import (
+	"fmt"
+	"path/filepath"
 	"time"
 
 	"github.com/alecthomas/kingpin"
@@ -37,7 +39,11 @@ func init() {
 
 		for _, nt := range group.Nettests {
 			log.Debugf("Running test %T", nt)
-			ctl := nettests.NewController(ctx, result)
+			msmtPath := filepath.Join(ctx.TempDir,
+				fmt.Sprintf("msmt-%s-%T.jsonl", nt,
+					time.Now().UTC().Format(time.RFC3339Nano)))
+
+			ctl := nettests.NewController(ctx, result, msmtPath)
 			if err := nt.Run(ctl); err != nil {
 				log.WithError(err).Errorf("Failed to run %s", group.Label)
 				return err
@@ -47,6 +53,7 @@ func init() {
 			// 2. Link the measurement to the Result (this should probably happen in
 			// the nettest class)
 			// 3. Update the summary of the result and the other metadata in the db
+			// 4. Move the msmtPath into the final location ~/.ooni/msmts/
 		}
 		// result.Update(ctx.DB)
 		return nil