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Same reasoning as commit 7b7885fc3be2719c068c0a2fc860d53f17a1d933,
because GUI browsers have a tendency to use a different
font-family (and thus different size) as the rest of the page.
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It seems pointless due to the indentation, and interacts
badly with some CSS colouring.
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We need to work with 0x22 (double-quote) and 0x5c (backslash);
even if they're oddball characters in filenames which wouldn't
be used by projects I'd want to work on.
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Alpine is apparently stricter than other clients I've tried
w.r.t. using CRLF for headers. So do the same thing we do for
bodies to ensure we only emit CRLFs and no bare LFs.
Reported-by: Wang Kang <i@scateu.me>
https://public-inbox.org/meta/alpine.DEB.2.21.99.1901161043430.29788@la.scateu.me/
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Actually, it turns out git.git/remote.c::valid_remote_nick
rules alone are insufficient. More checking is performed as
part of the refname in the git.git/refs.c::check_refname_component
I also considered rejecting URL-unfriendly inbox names entirely,
but realized some users may intentionally configure names not
handled by our WWW endpoint for archives they don't want
accessible over HTTP.
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This function doesn't have a lot of callers at the moment so
none of them are affected by this change. But the plan is to
use this in our WWW code for things, so do it now before we
call it in more places.
Results from a Thinkpad X200 with a Core2Duo P8600 @ 2.4GHz:
Benchmark: timing 10 iterations of cp, ip...
cp: 12.868 wallclock secs (12.86 usr + 0.00 sys = 12.86 CPU) @ 0.78/s (n=10)
ip: 10.9137 wallclock secs (10.91 usr + 0.00 sys = 10.91 CPU) @ 0.92/s (n=10)
Note: I mainly care about unquoted performance because
that's the common case for the target audience of public-inbox.
Script used to get benchmark results against the Linux source tree:
==> bench_unquote.perl <==
use strict;
use warnings;
use Benchmark ':hireswallclock';
my $nr = 50;
my %GIT_ESC = (
a => "\a",
b => "\b",
f => "\f",
n => "\n",
r => "\r",
t => "\t",
v => "\013",
);
sub git_unquote_ip ($) {
return $_[0] unless ($_[0] =~ /\A"(.*)"\z/);
$_[0] = $1;
$_[0] =~ s/\\([abfnrtv])/$GIT_ESC{$1}/g;
$_[0] =~ s/\\([0-7]{1,3})/chr(oct($1))/ge;
$_[0];
}
sub git_unquote_cp ($) {
my ($s) = @_;
return $s unless ($s =~ /\A"(.*)"\z/);
$s = $1;
$s =~ s/\\([abfnrtv])/$GIT_ESC{$1}/g;
$s =~ s/\\([0-7]{1,3})/chr(oct($1))/ge;
$s;
}
chomp(my @files = `git -C ~/linux ls-tree --name-only -r v4.19.13`);
timethese(10, {
cp => sub { for (0..$nr) { git_unquote_cp($_) for @files } },
ip => sub { for (0..$nr) { git_unquote_ip($_) for @files } },
});
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We'll be using it outside of searchidx...
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* commit 'mem':
view: more culling for search threads
over: cull unneeded fields for get_thread
searchmsg: remove unused fields for PSGI in Xapian results
searchview: drop unused {seen} hashref
searchmsg: remove Xapian::Document field
searchmsg: get rid of termlist scanning for mid
httpd: remove psgix.harakiri reference
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This allows v1 tests to continue working on git 1.8.0 for
now. This allows git 2.1.4 packaged with Debian 8 ("jessie")
to run old tests, at least.
I suppose it's safe to drop Debian 7 ("wheezy") due to our
dependency on git 1.8.0 for "merge-base --is-ancestor".
Writing V2 repositories requires git 2.6 for "get-mark"
support, so mask out tests for older gits.
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It looks like Net::Socket::IP comes with Perl 5.20 and
later; so we won't have to hassle users with another
package to install.
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Hopefully this helps people familiarize themselves with
the source code.
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{mapping} overhead is now down to ~1.3M at the end of
a giant thread from hell.
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On a certain ugly /$INBOX/$MESSAGE_ID/T/ endpoint with 1000
messages in the thread, this cuts memory usage from 2.5M to 1.9M
(which still isn't great, but it's a start).
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These fields are only necessary in NNTP and not even stored in
Xapian; so keeping them around for the PSGI web UI search
results wastes nearly 80K when loading large result sets.
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Unused since commit 5f09452bb7e6cf49fb6eb7e6cf166a7c3cdc5433
("view: cull redundant phrases in subjects")
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We don't need to be carrying this around with the many SearchMsg
objects we have. This saves about 20K from a large SearchView
"&x=t" response.
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It doesn't seem to be used anywhere
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We don't need to set "psgix." extension fields for things
we don't support. This saves 138 bytes per-client in $env
as measured by Devel::Size::total_size
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We need to parse the MIME object in order to get the
datestamp for those sites.
Fixes: 7d02b9e64455 ("view: stop storing all MIME objects on large threads")
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do_write must return 0 or 1.
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While we try to discard the $smsg (SearchMsg) objects quickly,
they remain referenced via $node (SearchThread::Msg) objects,
which are stored forever in $ctx->{mapping} to cull redundant
words out of subjects in the thread skeleton.
This significantly cuts memory bloat with large search results
with '&x=t'. Now, the search results overhead of
SearchThread::Msg and linked objects are stable at around 350K
instead of ~7M per response in a rough test (there's more
savings to be had in the same areas).
Several hundred kilobytes is still huge and a large per-client
cost; but it's far better than MEGABYTES per-client.
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I've hit /proc/sys/fs/pipe-user-pages-* limits on some systems.
So stop hogging resources on pipes which don't benefit from
giant sizes.
Some of these can use eventfd in the future to further reduce
resource use.
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The new t/*filter_rubylang.t tests call -index immediately
after -init, which causes confusing messages to show up to
the end user.
Check the validity of the ref before calling "git-log".
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Clearly the AltId stuff was never tested for v2. Ensure
this tricky filter (which reuses Msgmap to avoid introducing
new serial numbers) doesn't trigger deadlocks SQLite due
to opening a DB for writing multiple times.
I went through several iterations of this change before
going with this one, which is the least intrusive I could
fine.
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Remove redundant slashes while we're at it.
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Unused since commit 6c2caa791bd5fbf5c4edb1a4a2c1807e527348a7
("watchmaildir: support v2 repositories")
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Not sure what I was smoking when I originally wrote this code.
cf. https://public-inbox.org/meta/874li887mp.fsf@vuxu.org/
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There is no need for parallelism if we're not using Xapian.
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Since "publicinbox" sections are analogous to git remotes, we
may use the same rules for naming git remotes to reduce
cognitive overhead.
Most notably, this allows '.' in the middle of inbox names,
(e.g. "foo.bar") as it's common for email addresses, too.
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No need to reach into PublicInbox::Config internals and iterate
through the hashref by hand
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Remove confusing documentation around ssoma now that we
have NNTP and downloadable mbox support.
Only lightly-checked for grammar and speling, and not yet
formatting. Edits, corrections and addendums expected :>
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We can't run cleanup stuff without Danga::Socket.
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GUI browsers have a tendency to use a larger (though sometimes
smaller) font than the rest of the page for some reason I could
not find...
So set everything to 100% to give uniformity to the page; which
benefits visually-challenged users who want to use gigantic
fonts for the entire page.
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I've found two examples on https://lore.kernel.org/lkml/
where the messages declared themselves to be "multipart/mixed"
but were actually plain text:
<87llgalspt.fsf@free.fr>
<200308111450.h7BEoOu20077@mail.osdl.org>
With the mboxrd downloaded, mutt is able to view them without
difficulty.
Note: this change would require reindexing of Xapian to pick up
the changes. But it's only two ancient messages, the first was
resent by the original sender and the second is too old to be
relevant.
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Unfortunately, long inbox names and URLs don't really display well
with my gigantic fonts...
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Extracted from import_slrnspool, since some spools get converted
to mbox or what not.
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This allows archivists to publish incomplete archives with newer
mail while allowing "0.git" (or "1.git" and so on) epochs to be
added-after-the-fact (without affecting "git clone" followers).
A reindex will be necessary for Xapian and SQLite to catch up
once the old epochs are added; but the reindexing code is also
capable of tolerating missing epochs.
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This can be useful for configuring archives of lists which are
no longer active.
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When a client starts pipelining requests to us which trigger
long responses, we need to keep socket readiness checks disabled
and only enable them when our socket rbuf is drained.
Failure to do this caused aborted clients with
"BUG: nested long response" when Danga::Socket calls event_read
for read-readiness after our "next_tick" sub fires in the
same event loop iteration.
Reported-by: Jonathan Corbet <corbet@lwn.net>
cf. https://public-inbox.org/meta/20181013124658.23b9f9d2@lwn.net/
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Putting the Xref field into xover lines allows newsreaders to mark
cross-posted messages read when catching up a group. That, in turn,
massively improves the life of crazy people who try to follow dozens of
kernel lists, where emails are often heavily cross-posted.
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RFC 5536 sec 3.2.14 says that the server-name in an Xref line is "which
news server generated the header field"; indeed, that is necessary for
newsreaders like gnus to handle references properly. So pick up the server
name from the config if available (the first name if there's more than
one), from the host name otherwise, and use it rather than the domain
name of the list server.
Tests have been adjusted to match the new behavior.
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This ensures that the number of added files remains the same and thus
the article numbers derived from a repository will remain the same.
I think this is the last place in public-inbox that has to be tweaked to
guarantee the generated article number will remain the same in an public
inbox archive.
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
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Otherwise, walking backwards through history could mean the root
message in a thread forgets its `tid' and it prevents messages
from being looked up by it.
This bug was hidden by the fact that `sid' matches were often
good enough to link threads together.
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The "loose" (Subject:-based) thread matching yields too many
hits for some common subjects (e.g. "[GIT] Networking" on LKML)
and causes thread skeletons to not show the current messages.
Favor strict matches in the query and only add loose matches
if there's space.
While working on this, I noticed the backwards --reindex walk
breaks `tid' on v1 repositories, at least. That bug was hidden
by the Subject: match logic and not discovered until now. It
will be fixed separately.
Reported-by: Konstantin Ryabitsev <konstantin@linuxfoundation.org>
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Incremental indexing fixes from Eric W. Biederman.
These prevents the highest message number in msgmap from
being reassigned after deletes in rare cases and ensures
messages are deleted from msgmap in v2.
* eb/index-incremental:
V2Writeable.pm: In unindex_oid delete the message from msgmap
V2Writeable.pm: Ensure that a found message number is in the msgmap
SearchIdx,V2Writeable: Update num_highwater on optimized deletes
t/v[12]reindex.t: Verify the num highwater is as expected
t/v[12]reindex.t Verify num_highwater
Msgmap.pm: Track the largest value of num ever assigned
SearchIdx.pm: Always assign numbers backwards during incremental indexing
t/v[12]reindex.t: Test incremental indexing works
t/v[12]reindex.t: Test that the resulting msgmap is as expected
t/v[12]reindex.t: Place expected second in Xapian tests
t/v2reindex.t: Isolate the test cases more
t/v1reindex.t: Isolate the test cases
Import.pm: Don't assume {in} and {out} always exist
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Now that we track the num highwater mark it is safe to remove messages
from msgmap that have been previously allocated. Removing even the
highest numbered article will no longer cause new message numbers to
move backwards.
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
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The lookup to see if a num has already been assigned to a message
happens in a temporary copy of message map. It is possible that the
number has been removed from the current message map. The
unindex/reindex after a history rewrite triggered by a purge should be
one such case. Therefore add the number to the msgmap in case it is
not currently present.
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
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When performing an incremental index update with index_sync if a message is seen
to be both added and deleted update the num_highwater mark even though the
message is not otherwise indexed.
This ensures index_sync generates the same msgmap no matter which commit
it stops at during incremental syncs.
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
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Today the only thing that prevents public-inbox not reusing the
message numbers of deleted messages is the sqlite autoincrement magic
and that only works part of the time. The new incremental indexing
test has revealed areas where today public-inbox does try to reuse
numbers of deleted messages.
Reusing the message numbers of existing messages is a problem because
if a client ever sees messages that are subsequently deleted the
client will not see the new messages with their old numbers.
In practice this is difficult to trigger because it requires the most
recently added message to be removed and have the removal show up in a
separate pull request. Still it can happen and it should be handled.
Instead of infering the highset number ever used by finding the maximum
number in the message map, track the largest number ever assigned directly.
Update Msgmap to track this value and update the indexers to use this
value.
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
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