From: Holger Hoffstätte <holger@applied-asynchrony.com>
Date: Sat, 30 Sep 2017 15:54:27 +0000 (+0200)
Subject: btrfs-progs: right-align number columns in btrfs-debugfs output
X-Git-Tag: upstream/4.16.1~370
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=0fc8e78088216c76c262b1ea723d7136ec191869;p=platform%2Fupstream%2Fbtrfs-progs.git

btrfs-progs: right-align number columns in btrfs-debugfs output

The values for block group offset, length etc. in btrfs-debugfs' output
are left-aligned, which creates unaligned output and makes the usage
percentage hard to read/process further. This patch adds right-aligning
format specifiers for the number values.
Ideally the format values wouldn't be hardcoded but instead derived from
the filesystem size, but this seems to work for now.

Signed-off-by: Holger Hoffstätte <holger@applied-asynchrony.com>
Signed-off-by: David Sterba <dsterba@suse.com>
---

diff --git a/btrfs-debugfs b/btrfs-debugfs
index dfb8853..a7ecd16 100755
--- a/btrfs-debugfs
+++ b/btrfs-debugfs
@@ -356,8 +356,13 @@ def print_block_groups(mountpoint):
 
                 ctypes.memmove(ctypes.addressof(bg), p, ctypes.sizeof(bg))
                 if bg.flags & BTRFS_BLOCK_GROUP_DATA:
-                    print "block group offset %Lu len %Lu used %Lu chunk_objectid %Lu flags %Lu usage %.2f" %\
-                     (header.objectid, header.offset, bg.used, bg.chunk_objectid, bg.flags, float(bg.used) / float(header.offset))
+                    print "block group offset %s len %s used %s chunk_objectid %Lu flags %Lu usage %.2f" %\
+                     ('{:>14}'.format(header.objectid),
+                      '{:>10}'.format(header.offset),
+                      '{:>10}'.format(bg.used),
+                      bg.chunk_objectid,
+                      bg.flags,
+                      float(bg.used) / float(header.offset))
 
                     total_free += (header.offset - bg.used)
                     if min_used >= bg.used: