mcap info: add channel count (#1243)

Merging #1051 with a small tweak to use Statistics's channel count if available. --------- Co-authored-by: peizhe.chen <[email protected]> Co-authored-by: pezy <[email protected]>
foxglove · Sep 25, 2024 · 4ec37c5 · 4ec37c5
1 parent 0ebaf69
commit 4ec37c5
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/go/cli/mcap/cmd/info.go b/go/cli/mcap/cmd/info.go
@@ -174,9 +174,11 @@ func printInfo(w io.Writer, info *mcap.Info) error {
 		return err
 	}
 	if info.Statistics != nil {
+		fmt.Fprintf(buf, "channels: %d\n", info.Statistics.ChannelCount)
 		fmt.Fprintf(buf, "attachments: %d\n", info.Statistics.AttachmentCount)
 		fmt.Fprintf(buf, "metadata: %d\n", info.Statistics.MetadataCount)
 	} else {
+		fmt.Fprintf(buf, "channels: unknown\n")
 		fmt.Fprintf(buf, "attachments: unknown\n")
 		fmt.Fprintf(buf, "metadata: unknown\n")
 	}