1 files changed, 73 insertions, 0 deletions
diff --git a/dependencies/pkg/mod/github.com/vbauerster/mpb/v6@v6.0.4/cwriter/writer_windows.go b/dependencies/pkg/mod/github.com/vbauerster/mpb/v6@v6.0.4/cwriter/writer_windows.go
new file mode 100644
index 0000000..1a69c81
--- /dev/null
+++ b/dependencies/pkg/mod/github.com/vbauerster/mpb/v6@v6.0.4/cwriter/writer_windows.go
@@ -0,0 +1,73 @@
+// +build windows
+
+package cwriter
+
+import (
+	"unsafe"
+
+	"golang.org/x/sys/windows"
+)
+
+var kernel32 = windows.NewLazySystemDLL("kernel32.dll")
+
+var (
+	procSetConsoleCursorPosition   = kernel32.NewProc("SetConsoleCursorPosition")
+	procFillConsoleOutputCharacter = kernel32.NewProc("FillConsoleOutputCharacterW")
+)
+
+func (w *Writer) clearLines() error {
+	if !w.isTerminal {
+		// hope it's cygwin or similar
+		return w.ansiCuuAndEd()
+	}
+
+	var info windows.ConsoleScreenBufferInfo
+	if err := windows.GetConsoleScreenBufferInfo(windows.Handle(w.fd), &info); err != nil {
+		return err
+	}
+
+	info.CursorPosition.Y -= int16(w.lineCount)
+	if info.CursorPosition.Y < 0 {
+		info.CursorPosition.Y = 0
+	}
+	_, _, _ = procSetConsoleCursorPosition.Call(
+		uintptr(w.fd),
+		uintptr(uint32(uint16(info.CursorPosition.Y))<<16|uint32(uint16(info.CursorPosition.X))),
+	)
+
+	// clear the lines
+	cursor := &windows.Coord{
+		X: info.Window.Left,
+		Y: info.CursorPosition.Y,
+	}
+	count := uint32(info.Size.X) * uint32(w.lineCount)
+	_, _, _ = procFillConsoleOutputCharacter.Call(
+		uintptr(w.fd),
+		uintptr(' '),
+		uintptr(count),
+		*(*uintptr)(unsafe.Pointer(cursor)),
+		uintptr(unsafe.Pointer(new(uint32))),
+	)
+	return nil
+}
+
+// GetSize returns the visible dimensions of the given terminal.
+//
+// These dimensions don't include any scrollback buffer height.
+func GetSize(fd int) (width, height int, err error) {
+	var info windows.ConsoleScreenBufferInfo
+	if err := windows.GetConsoleScreenBufferInfo(windows.Handle(fd), &info); err != nil {
+		return 0, 0, err
+	}
+	// terminal.GetSize from crypto/ssh adds "+ 1" to both width and height:
+	// https://go.googlesource.com/crypto/+/refs/heads/release-branch.go1.14/ssh/terminal/util_windows.go#75
+	// but looks like this is a root cause of issue #66, so removing both "+ 1" have fixed it.
+	return int(info.Window.Right - info.Window.Left), int(info.Window.Bottom - info.Window.Top), nil
+}
+
+// IsTerminal returns whether the given file descriptor is a terminal.
+func IsTerminal(fd int) bool {
+	var st uint32
+	err := windows.GetConsoleMode(windows.Handle(fd), &st)
+	return err == nil
+}