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scripts: maps: Adopted persistent padding for status strings

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This automatically minimizes the status strings without flickering, all
it took was a bit of ~*global state*~.

---

If I'm remembering correctly, this was actually how tracebd.py used to
work before dbgbmap.py was added. The idea was dropped with dbgbmap.py
since dbgbmap.py relied on watch.py for real-time rendering and couldn't
persist state.

But now dbgbmap.py has its own -k/--keep-open flag, so that's not a
problem.
This commit is contained in:
Christopher Haster
2025-04-11 19:24:53 -05:00
parent 97c2287177
commit 27152ec597
2 changed files with 50 additions and 18 deletions
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scripts/dbgbmap.py
+18 -4
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@@ -4588,12 +4588,26 @@ def main_(ring, disk, mroots=None, *,
lfs.cksum,
'' if lfs.ckgcksum() else '?'))
else:
title_ = ('bd %sx%s, %5s mdir, %5s btree, %5s data' % (
# hack time~, to avoid flickering, keep track of worst padding
# globally
mdir_percent = '%.1f%%' % (100*mdir_count / max(len(bmap), 1))
btree_percent = '%.1f%%' % (100*btree_count / max(len(bmap), 1))
data_percent = '%.1f%%' % (100*data_count / max(len(bmap), 1))
main_.mdir_padding = max(
getattr(main_, 'mdir_padding', 0),
len(mdir_percent))
main_.btree_padding = max(
getattr(main_, 'btree_padding', 0),
len(btree_percent))
main_.data_padding = max(
getattr(main_, 'data_padding', 0),
len(data_percent))
title_ = ('bd %sx%s, %.*s mdir, %.*s btree, %.*s data' % (
lfs.block_size if lfs.block_size is not None else '?',
lfs.block_count if lfs.block_count is not None else '?',
'%.1f%%' % (100*mdir_count / max(len(bmap), 1)),
'%.1f%%' % (100*btree_count / max(len(bmap), 1)),
'%.1f%%' % (100*data_count / max(len(bmap), 1))))
main_.mdir_padding, mdir_percent,
main_.btree_padding, btree_percent,
main_.data_padding, data_percent))
# scale width/height if requested
if (to_scale is not None