Stuff Michael Meeks is doing
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This is my (in)activity log. You might like to visit
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Productivity a subsidiary of Collabora focusing on LibreOffice support and
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legacy html
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Up early, now Apache have some code available, I did a
quick analysis of the LibreOffice diff to Apache's codebase - which
is fairly large and growing: looking
only at C++ files (
*.?xx) we have:
- We removed ~678 files (though some small proportion
of these are simple movements to improve encapsulation
and/or re-use). A hundred or so of the removals are obsolete binfilter
pieces, 55 from OS/2 code, 50 from adabas and evo1 connectors,
38 from soldep, 36 from killing vos, but many more bits of unused
cruft gone.
- We added ~914 new files modulo movements
the single biggest chunk is : 380 files is (IBM's) lotuswordpro
filter (forward-ported by us), then it gets bitty: VBA improvements,
the re-written RTF import filter, the ODMA and KDE file pickers,
OpenXML filter work, new unit tests, gtk3 pieces, AIX UNO bridge,
svg filter and lots more.
- These numbers compare with 21.5k common files overall.
As a reasonably useless statistic - but perhaps one that points
helpfully to the likelihood of merging conflicts we have ~2 million
lines of
diff -u output over 7.7 million
newlines of code.
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More concretely, having elided the code changes from the
(automated) emacs & vi modelines (to make editing much easier)
which touched each file, and looking only at common files we
have: minus 526k lines - always good to measure the negatives
first: we ripped and replaced a lot of cruft. And then we added
290k lines back again.
-
Naturally, lots of feature work was done in the new files
we added, so the net work input is much larger, the above number is
only looking at the common files; to gague the degree of code-change.
raw
data (11Mb).
What does that all mean ? well it is a lot of code-change and cleanup.
It is also a lot of scope for conflict when merging changes. Seemingly
there is an assumption, that code committed
to Apache OpenOffice will inevitably and automatically appear in
LibreOffice. This looks increasingly unlikely. Instead I suspect we
will end up cherry-picking and porting only those things that justify
the effort, as/when/if there is any such thing.
-
Pain in jaw (again) - an annoying intermittent wetware bug.
Re-based
feature/gtk3 branch and built it. Did some
hacking on windows to try to unwind some unit test breakage,
remembered again why I hate using that thing. File URLs that look
like file:///c:/foo/baa which inevitably break when
ported from unix Incremental (no
action) re-make time of the order of a minute instead of a handful
of seconds - amazing.
| OS | Hardware | incremental 'sc' make |
with glob fix |
incremental tail_build | same with glob fix |
| Linux (openSUSE11.4) | 2.5GHz Core2 Duo |
6.8 seconds | 4.5 seconds |
32 seconds | 22 seconds |
| Windows 2008R2 | 2GHz Dual core Xeon |
118 seconds | 14.8 seconds |
597 seconds | 80 seconds |
Of course, no doubt cygwin has a lot to do with the slowness, but
wow life is painful without that glob fix (which saves a ton of
un-necessary I/O). It -really- looks as if we should be building
with our own make snapshot on windows.
-
Tested Moggi's nice merged cells movement / undo/redo fix -
lovely. Poked at Bjoern's nice gerrit instance - looks easy to get
going at least.
-
Poked at the GTS
library to see if it could be used for 3D shrinking / slicing
for repsnapper, looks rather impressive
(though apparently sadly unmaintained).
My content in this blog and associated images / data under
images/ and data/ directories are (usually)
created by me and (unless obviously labelled otherwise) are licensed under
the public domain, and/or if that doesn't float your boat a CC0
license. I encourage linking back (of course) to help people decide for
themselves, in context, in the battle for ideas, and I love fixes /
improvements / corrections by private mail.
In case it's not painfully obvious: the reflections reflected here are my
own; mine, all mine ! and don't reflect the views of Collabora, SUSE,
Novell, The Document Foundation, Spaghetti Hurlers (International),
or anyone else.
It's also important to realise that I'm not in on the Swedish Conspiracy.
Occasionally people ask for formal photos for conferences
or fun.
Michael Meeks (michael.meeks@collabora.com)
