1 files changed, 103 insertions, 0 deletions
diff --git a/lib/ext2fs/progress.c b/lib/ext2fs/progress.c
new file mode 100644
index 0000000..fe4292f
--- /dev/null
+++ b/lib/ext2fs/progress.c
@@ -0,0 +1,103 @@
+/*
+ * progress.c - Numeric progress meter
+ *
+ * Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
+ * 	2003, 2004, 2005 by Theodore Ts'o.
+ *
+ * %Begin-Header%
+ * This file may be redistributed under the terms of the GNU Public
+ * License.
+ * %End-Header%
+ */
+
+#include "config.h"
+#include "ext2fs.h"
+#include "ext2fsP.h"
+
+#include <time.h>
+
+static char spaces[80], backspaces[80];
+static time_t last_update;
+
+struct ext2fs_progress_ops ext2fs_numeric_progress_ops = {
+	.init		= ext2fs_numeric_progress_init,
+	.update		= ext2fs_numeric_progress_update,
+	.close		= ext2fs_numeric_progress_close,
+};
+
+static int int_log10(unsigned int arg)
+{
+	int	l;
+
+	for (l=0; arg ; l++)
+		arg = arg / 10;
+	return l;
+}
+
+void ext2fs_numeric_progress_init(ext2_filsys fs,
+				  struct ext2fs_numeric_progress_struct * progress,
+				  const char *label, __u64 max)
+{
+	/*
+	 * The PRINT_PROGRESS flag turns on or off ALL
+	 * progress-related messages, whereas the SKIP_PROGRESS
+	 * environment variable prints the start and end messages but
+	 * not the numeric countdown in the middle.
+	 */
+	if (!(fs->flags & EXT2_FLAG_PRINT_PROGRESS))
+		return;
+
+	memset(spaces, ' ', sizeof(spaces)-1);
+	spaces[sizeof(spaces)-1] = 0;
+	memset(backspaces, '\b', sizeof(backspaces)-1);
+	backspaces[sizeof(backspaces)-1] = 0;
+
+	memset(progress, 0, sizeof(*progress));
+	if (getenv("E2FSPROGS_SKIP_PROGRESS"))
+		progress->skip_progress++;
+
+
+	/*
+	 * Figure out how many digits we need
+	 */
+	progress->max = max;
+	progress->log_max = int_log10(max);
+
+	if (label) {
+		fputs(label, stdout);
+		fflush(stdout);
+	}
+	last_update = 0;
+}
+
+void ext2fs_numeric_progress_update(ext2_filsys fs,
+				    struct ext2fs_numeric_progress_struct * progress,
+				    __u64 val)
+{
+	time_t now;
+
+	if (!(fs->flags & EXT2_FLAG_PRINT_PROGRESS))
+		return;
+	if (progress->skip_progress)
+		return;
+	now = time(0);
+	if (now == last_update)
+		return;
+	last_update = now;
+
+	printf("%*llu/%*llu", progress->log_max, (unsigned long long) val,
+	       progress->log_max, (unsigned long long) progress->max);
+	fprintf(stdout, "%.*s", (2*progress->log_max)+1, backspaces);
+}
+
+void ext2fs_numeric_progress_close(ext2_filsys fs,
+				   struct ext2fs_numeric_progress_struct * progress,
+				   const char *message)
+{
+	if (!(fs->flags & EXT2_FLAG_PRINT_PROGRESS))
+		return;
+	fprintf(stdout, "%.*s", (2*progress->log_max)+1, spaces);
+	fprintf(stdout, "%.*s", (2*progress->log_max)+1, backspaces);
+	if (message)
+		fputs(message, stdout);
+}