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Exposing altid dumps will help and ensure total reproducibility
of existing instances.
AFAIK, sqlite3(1) can't execute arbitrary code, so it's not
quite as fashionable as the "curl | bash" stuff the cool people
are doing, these days :P
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We want to be able to preload that, as well as to access it
in WwwText for a config comment in the config example.
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This ensures all our indexed data, including data from altid
searches (e.g. "gmane:$ARTNUM") is retrievable.
It uses a "POST" request to avoid wasting cycles when invoked by
crawlers, since it could potentially be several megabytes of
data not indexable by search engines.
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We only support searching on prefixes matching /\A\w+\z/ because
Xapian requires ':' to delimit the prefix and splits on spaces
without quotes.
I've also verified Xapian supports multibyte UTF-8 characters,
underscores, and bare numbers as search prefixes, so there's
no need to restrict it beyond what Perl's UTF-8 aware \w
character class offers.
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And show contact info when there's no indexing, at all.
Installations where Xapian is too expensive can still support
threading since it only depends on SQLite, so we need to inform
users of what's available.
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While we don't currently reinitialize the query parser for
the lifetime of a PublicInbox::Search object and have no plans
to, it's incorrect to be appending to an existing array in
case we reininitialize the query parser in the future.
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As sqlite3(1) and other executables may become unavailable or
uninstalled while a daemon runs, we need to gracefully handle
errors in those cases.
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This makes the error page more consistent.
Not that it really matters since Compress::Raw::Zlib and
IO::Compress packages have been distributed with Perl since
5.10.x. Of course, zlib itself is also a dependency of git.
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PublicInbox::HTTP will chunk, otherwise, and that's
extra overhead which isn't needed.
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No reason to use the ->getline interface for small responses.
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The ->getline API is only useful for limiting memory use when
streaming responses containing multiple emails or log messages.
However it's unnecessary complexity and overhead for callers
(PublicInbox::HTTP) when there's only a single message.
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zlib contexts are memory-intensive, particularly when used for
compression. Since the gzip filter may be sitting in a limiter
queue for a long period, delay the allocation we actually have
data to translate, and not a moment sooner.
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We'll be supporting gzipped from sqlite3(1) dumps
for altid files in future commits.
In the future (and if we survive), we may replace
Plack::Middleware::Deflater with our own GzipFilter to work
better with asynchronous responses without relying on
memory-intensive anonymous subs.
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We need to track the PID file having ".oldbin" appended
to it while a SIGUSR2 upgrade is in progress and ensure
it is unlinked on SIGQUIT.
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Disabling workers via `-W0' blesses the contents of the
@listeners array, so we need to ensure we call fcntl on
the GLOB ref in ->{sock}.
Add tests to ensure USR2 works regardless of whether workers
are enabled or not.
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This lets us store author and committer times for deferred
indexing messages with ambiguous Message-IDs. This allows
us to reproducibly reindex messages with the git commit
and author times when a rare message lacks Received and/or
Date headers while having ambiguous Message-IDs.
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We can finally get rid of the awkward, ad-hoc use of V2Writable,
SearchIdx, and OverIdx args for passing {cotime} and {autime}
between classes.
We'll still use those git time fields internally within
V2Writable and SearchIdx for (re)indexing, but that's not
worth avoiding as a fallback.
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We can pass fewer order-dependent args to V2Writable::do_idx and
SearchIdxShard::index_raw by passing the smsg object, instead.
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We can pass blessed PublicInbox::Smsg objects to internal
indexing APIs instead of having long parameter lists in some
places. The end goal is to avoid parsing redundant information
each step of the way and hopefully make things more
understandable.
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Favor `$smsg->{mid}' instead of `$mid0' to reduce parameters
down-the-line, but favor passing the Email::MIME::Header object
around instead of relying on the bloat-prone `$smsg->{mime}'
and calling ->header_obj on it.
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No need to pass extra parameters to this method, since
smsg has universal meanings for {blob} and {mid}.
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Since the introduction of over.sqlite3, SearchMsg is not tied to
our search functionality in any way, so stop confusing ourselves
and future hackers by just calling it "PublicInbox::Smsg".
Add a missing "use" in ExtMsg while we're at it.
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While v2 indexing is triggered immediately after writing the
commit to the git repository, there may be a gap between when
PublicInbox::Import generates a timestamp and when
PublicInbox::SearchIdx sees the message. So follow the mirror
indexing behavior and take the to-be-indexed (time|date)stamps
directly from the git commit.
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When indexing messages without Date: and/or Received: headers,
fall back to using timestamps originally recorded by git in the
commit object. This allows git mirrors to preserve the import
datestamp and timestamp of a message according to what was fed
into git, instead of blindly falling back to the current time.
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Date::Parse falls back to using the local timezone when
it's missing from an email, so only test in a reasonable
TZ (UTC) for server software.
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We reach into the WwwListing package directly to retrieve
that JSON encoder/decoder object, and we can't rely on `use'
since WwwListing loading may fail if Plack is missing.
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And not the last...
I only noticed this since JSON::PP::Boolean was spewing
redefinition warnings via overload.pm
Fixes: 8fb8fc52420ef669 ("wwwlisting: avoid lazy loading JSON module")
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public-inbox-httpd should work with any PSGI files, so make
it more apparent to people reading .psgi examples.
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We can also avoid `o' regexp modifier, since it isn't
recommended by Perl upstream, anymore (although we don't
have any bugs or unintended behavior because of it).
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Doing immortal allocations late can cause those allocations
to end up in places where it fragments the heap. So do more
things up front for long-lived daemons.
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We want WWW->preload to get as many immortal allocations done
as possible, and the `state' feature from Perl 5.10 prevents that.
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We already lazy-load WwwListing for the CGI script, and
hiding another layer of lazy-loading makes things difficult
to do WWW->preload.
We want long-lived processes to do all long-lived allocations up
front to avoid fragmentation in the allocator, but we'll still
support short-lived processes by lazy-loading individual modules
in the PublicInbox::* namespace.
Mixing up allocation lifetimes (e.g. doing immortal allocations
while a large amount of space is taken by short-lived objects)
will cause fragmentation in any allocator which favors large
contiguous regions for performance reasons. This includes any
malloc implementation which relies on sbrk() for the primary
heap, including glibc malloc.
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"use" is also evaluated earlier than "require", so it is
favorable for compile-only checking.
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We'll also avoid explicitly loading standard library modules
like POSIX and Digest::SHA, here; instead we load our own
modules and let those load whatever non-PublicInbox:: modules
they need.
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RFC 5322 is the latest one in this line, but much documentation
and even command-line options in other programs (e.g. git) refer
to RFC 2822 or even RFC 822.
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We need to favor "Transfer-Encoding: chunked" over the value of
the Content-Length header. We should also reject bogus,
duplicate and/or unreasonable values for both these, since they
can trigger unexpected behavior when combined with other HTTP
parsers in proxies such as varnish, nginx, haproxy, etc...
See RFC 7230 (and RFC 2616) for more details:
https://tools.ietf.org/html/rfc7230
https://www.rfc-editor.org/errata_search.php?rfc=7230
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Debian 10.0 was released July 2019, so update our documentation
to reflect that. While we're at it, fixup a broken footnote
reference for Inline::C, too.
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We can just create a ParentPipe and let PublicInbox::DS
manage its life cycle. While we're at it, favor `\&coderef'
over `*coderef' so we're explicit about it being a code ref
and not some other ref type.
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We will occasionally see legit messages with zero lines,
be sure we index that count for NNTP clients.
I'm not sure about bytes being zero (aside from purged
messages), but we should've dealt with that earlier up
the stack.
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We rely on spawn/popen_rd for redirects, nowadays.
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Both the C and pure Perl implementions of `pi_fork_exec'
returns `-1' on error, not `undef'.
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Some old emails don't have timezone offsets, since our
Date::Parse code path takes a liberal interpretation of dates,
fallback to using "+0000" as the timezone offset since it's
closer to the actual date of the message than whatever the
current date is.
Reported-by: Leah Neukirchen <leah@vuxu.org>
Link: https://public-inbox.org/meta/87h7zfemur.fsf@vuxu.org/
Fixes: ae80a3fdb53d7014 ("MsgTime.pm: Use strptime to compute the time zone")
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Some strange "From:" lines will cause Email::Address::XS to
leave '<' (and presumably '>') in the address which
git-fast-import won't accept even if quoted. Workaround this
problem by deleting '<' and '>' the same way we delete them for
the ident name.
Reported-by: Leah Neukirchen <leah@vuxu.org>
Link: https://public-inbox.org/meta/87h7zfemur.fsf@vuxu.org/
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IO::Compress is required for v2 inboxes and overview
indices, after all, but it is often pulled in by
other packages (HTTP::Message via Plack::Test).
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This isn't anything new and has been a part of the design
since the beginning, but it may not be apparent to some
folks.
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`%over' could be confused for the overview SQLite DB
instance, so call it `%override', instead. There's
also no need to write a loop to override a hash when
the language can do it for us.
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Perhaps 1.4.0 will be a small release, after all (and also
smaller in terms of memory use :)
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It only needs to return a boolean, since none of the current
callers care about the return value. Thus avoid a hash table
assignment and use of `$smsg->{mime}', here.
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Import::remove is a documented interface, and the return
value of the V2Writable work-alike should try to be compatible
with what Import implements.
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It was the only file in our tree which had CRLF line endings,
so make it consistent with the rest.
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