tools/syz-kcidb: add -input and -output flags for testing

Add -input and -output flags to syz-kcidb to allow for faster and
easier testing of KCIDB submissions.

With these flags, it's possible to use a local JSON file as input
for a bug report and to save the resulting KCIDB submission locally.
This removes the need for communication with the dashboard and KCIDB,
which simplifies testing and development.

Signed-off-by: Denys Fedoryshchenko <denys.f@collabora.com>

1 files changed, 18 insertions, 0 deletions

diff --git a/pkg/kcidb/client.go b/pkg/kcidb/client.go
index bba811c7e..091cbbefb 100644
--- a/pkg/kcidb/client.go
+++ b/pkg/kcidb/client.go
@@ -84,6 +84,24 @@ func (c *Client) Publish(bug *dashapi.BugReport) error {
 	return err
 }
 
+func (c *Client) PublishToFile(bug *dashapi.BugReport, filename string) error {
+	target := targets.List[bug.OS][bug.VMArch]
+	if target == nil {
+		return fmt.Errorf("unsupported OS/arch %v/%v", bug.OS, bug.VMArch)
+	}
+	data, err := json.MarshalIndent(c.convert(target, bug), "", "  ")
+	if err != nil {
+		return fmt.Errorf("failed to marshal kcidb json: %w", err)
+	}
+	if err := kcidbValidate(data); err != nil {
+		return err
+	}
+	if err := os.WriteFile(filename, data, 0644); err != nil {
+		return fmt.Errorf("failed to write kcidb json to file: %w", err)
+	}
+	return nil
+}
+
 var Validate bool
 
 func kcidbValidate(data []byte) error {