internal/progress: Add progress meter

1 files changed, 22 insertions, 0 deletions

diff --git a/internal/progress/options.go b/internal/progress/options.go
new file mode 100644
index 00000000..d7c08894
--- /dev/null
+++ b/internal/progress/options.go
@@ -0,0 +1,22 @@
+package progress
+
+import (
+	"io"
+	"time"
+)
+
+// Options configures one progress meter.
+type Options struct {
+	Writer io.Writer
+	Flush  func() error
+
+	Title string
+	Total uint64
+
+	// Delay suppresses progress output until Delay has elapsed since Start.
+	Delay time.Duration
+	// Sparse forces one final 100% line at Stop when the caller sampled updates.
+	Sparse bool
+	// Throughput appends ", <total> | <rate>/s" and refreshes rate every 500ms.
+	Throughput bool
+}