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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>
This commit is contained in:
Holger Hoffstätte 2017-09-30 17:54:27 +02:00 committed by David Sterba
parent e4c6772f69
commit 0fc8e78088
1 changed files with 7 additions and 2 deletions
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btrfs-debugfs
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@ -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: