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It never has, AFAIK, but I'm making some changes to this code in
another branch and nearly introduced a bug where it would be
overreading and discarding the pipelined request.
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Plack is for Perl, Rack is for Ruby; this a Perl project :x
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* origin/newspeak:
comments: replace "partition" with "shard"
t/xcpdb-reshard: use 'shard' term in local variables
xapcmd: favor 'shard' over 'part' in local variables
search: use "shard" for local variable
v2writable: use "epoch" consistently when referring to git repos
adminedit: "part" => "shard" for local variables
v2writable: rename local vars to match Xapian terminology
v2writable: avoid "part" in internal subs and fields
search*: rename {partition} => {shard}
xapcmd: update comments referencing "partitions"
v2: rename SearchIdxPart => SearchIdxShard
inboxwritable: s/partitions/shards/ in local var
tests: change messages to use "shard" instead of partition
v2writable: rename {partitions} field to {shards}
v2writable: count_partitions => count_shards
searchidxpart: start using "shard" in user-visible places
rename reference to git epochs as "partitions"
admin|xapcmd: user-facing messages say "shard"
v2writable: update comments regarding xcpdb --reshard
doc: rename our Xapian "partitions" to "shards"
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No point in using lower-level APIs for a PSGI test.
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I could not find a place to put the link the top without
making navigation too cluttered. Putting it at the bottom
of the page seems reasonable...
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I found myself tempted to switch to HTTP::Tiny, here, since
it's distributed with Perl since 5.14, unlike Net::HTTP
(which AFAIK was never a part of Perl proper).
But we really want to use Net::HTTP, here, since it's
lower-level and allows us to trigger server-side buffering
by not reading the entity body.
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Another step in maintaining consistency with Xapian docs.
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Another potentially user-facing piece made consistent with
Xapian terminology.
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Our internal data structure should be consistent with Xapian
terminology.
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Try to remain consistent with our own documentation regarding
v2 git "epochs", first.
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No sense in supporting multiple methods of initialization
for an internal class.
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PublicInbox::Inbox objects have minimal dependencies, so
drop code to support old tests which existed before the
PublicInbox::Inbox object came into existence.
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More testers are likely to have HTTP::Tiny than Net::HTTP, since
HTTP::Tiny is a dual-life module and distributed with Perl since
Perl 5.14 (2011-05-14), whereas Net::HTTP will likely live in
a separate package forever.
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* origin/reshard:
xcpdb: support resharding v2 repos
xcpdb: use destination shard as progress prefix
xapcmd: preserve indexlevel based on the destination
v2writable: use a smaller default for Xapian partitions
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* origin/manifest:
git: ensure ->modified returns an integer
www: support $INBOX/git/$EPOCH.git for v2 cloning
www: wire up /$INBOX/manifest.js.gz, too
wwwlisting: generate grokmirror-compatible manifest.js.gz
wwwlisting: allow hiding entries from manifest
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* origin/edit:
edit: unlink temporary file when done
v2writable: replace: kill git processes before reindexing
edit: drop unwanted headers before noop check
edit|purge: improve output on rewrites
edit: new tool to perform edits
doc: document the --prune option for -index
admin: expose ->config
AdminEdit: move editability checks from -purge
admin: beef up resolve_inboxes to handle purge options
purge: start moving common options to AdminEdit module
admin: remove warning arg for unconfigured inboxes
v2writable: implement ->replace call
import: switch to "replace_oids" interface for purge
import: extract_author_info becomes extract_commit_info
v2writable: consolidate overview and indexing call
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v2 repos are sometimes created on machines where CPU
parallelization exceeds the capability of the storage devices.
In that case, users may reshard the Xapian DB to any smaller,
positive integer to avoid excessive overhead and contention when
bottlenecked by slow storage.
Resharding can also be used to increase shard count after
hardware upgrades.
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We weren't using it, and in retrospect, it makes no sense to use
this API cat_file for giant responses which can't read quickly
with minimal context-switching (or sanely fit into memory for
Email::Simple/Email::MIME).
For giant blobs which we don't want slurped in memory, we'll
spawn a short-lived git-cat-file process like we do in ViewVCS.
Otherwise, monopolizing a git-cat-file process for a giant
blob is harmful to other PSGI/NNTP users.
A better interface is coming which will be more suitable for
for batch processing of "small" objects such as commits and
email blobs.
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It's the unfortunate reality that there are some clients which
reuse Message-IDs (in which we generate + use another) or set
multiple Message-IDs on their own. While the v2 format
addresses that, NNTP clients such as leafnode are not always
prepared to deal with that case.
So, ensure NNTP clients only see a single Message-ID, and
show the others as 'X-Alt-Message-ID'.
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Leafnode cannot handle Message-ID headers which are too long and
require folding via Email::Simple::Header. Since there are
already many of these messages in git with the header already
folded, we need to handle the unfolding when emitting the
message via NNTP.
As far as we know, Leafnode is the only client software
incapable of handling this case.
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And enable strict + warnings in the scope of t/common.perl, too.
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mutt will set Content-Length, Lines, and Status headers
unconditionally, so we need to account for that before
doing header comparisons to avoid making expensive changes
when noop edits are made.
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Fill in undef as "(unchanged)" when displaying commits
and prefix the epoch name.
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We don't want to serialize timestamps as strings to JSON.
I only noticed this bug on a 32-bit system.
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This wrapper around V2Writable->replace provides a user-interface
for editing messages as single-message mboxes (or the raw text
via $EDITOR).
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Much of the existing purge code is repurposed to a general
"replace" functionality.
->purge is simpler because it can just drop the information.
Unlike ->purge, ->replace needs to edit existing git commits (in
case of From: and Subject: headers) and reindex the modified
message.
We currently disallow editing of References:, In-Reply-To: and
Message-ID headers because it can cause bad side effects with
our threading (and our lack of rethreading support to deal with
excessive matching from incorrect/invalid References).
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And use it in manifest.js.
To ease maintaining mirrors with grokmirror(1), we can accept
a "git/" directory prefix before the epoch, and ".git" suffix
after the epoch number.
We maintain compatibility with "$INBOX/$EPOCH" cloning, of
course, and it's still easier-to-type on the command-line.
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I can imagine myself just wanting to clone a single v2 inbox
and all its epochs without thinking about include/exclude
rules in a grokmirror config file.
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Support on-demand generation of "/manifest.js.gz" for inboxes.
By default, this matches inboxes with URLs matching the given
request hostname by default.
This makes it easier to create full mirrors of several inboxes
without needing to configure static file serving.
cf. https://git.kernel.org/pub/scm/utils/grokmirror/grokmirror.git
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The version of Test::More from Perl 5.10.1 did not support
"subtest", and the earliest version which did is Perl 5.12.0
The good news is this gives me an excuse to parallelize
the indexlevels-mirror test by splitting it into two.
(it could be further split, even).
Update t/nntpd. to use PI_TEST_VERSION consistently while
we're at it.
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The "\w" character class in Perl matches any word characters
in the Unicode database, not just ASCII characters. So we
must be prepared for that and generate links to IDNs.
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In case we encounter an odd system which has Search::Xapian
but not DBD::SQLite.
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Even though we currently don't use it repeatedly, ->Reset
should close() kqueue FDs and not cause the process to run
out of descriptors.
Add a close-on-exec test while we're at it.
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A constant stream of traffic to either httpd/nntpd would mean
git-cat-file processes never expire. Things can go bad after a
full repack, as a full repack will unlink old pack indices and
git-cat-file does not currently detect unlinked files.
We could do something complicated by recursively stat-ing
objects/pack of every git directory and alternate;
but that's probably not worth the trouble compared to
occasionally restarting the cat-file process.
So simplify the code and let httpd/nntpd expire them
periodically, since spawning a "git-cat-file --batch" process
isn't too expensive. We already spawn for every request which
hits git-http-backend, cgit, and git-apply.
In the future, we may optionally support the Git::Raw module
to avoid IPC; but we must remain careful to not leave lingering
FDs open to unlinked files after repack.
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And use it from Admin.
It's easy to tell what indexlevel=basic is from unconfigured
inboxes, but distinguishing between 'medium' and 'full' would
require stat()-ing position.* files which is fragile and
Xapian-implementation-dependent.
So use the metadata facility of Xapian and store it in the main
partition so Admin tools can deal better with unconfigured
inboxes copied using generic tools like cp(1) or rsync(1).
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`public-inbox-index --reindex' could cause NNTP article number
gaps to form when it also has to deal with new,
never-before-seen commits in mirrors running off `git fetch'.
Fix this by running two distinct invocations of ->index_sync;
once to only reindex old commits, and a second time to index
new commits.
This does not appear to be a problem on v1 at the moment,
but I'll need more time to analyze this.
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It did not cause a test failure because the default fallback
is `indexlevel=full'
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Don't hard-code "basic", since we already ran -init with the
intended indexlevel.
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Copying an entire Xapian DB is horribly slow whether it's done
via Perl or copydatabase(1). So displaying some progress
indication is good for user experience.
While we're at it, prefix xapian-compact output, too; since
parallel processes end up clobbering each other.
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copydatabase(1) is an existing Xapian tool which is the
recommended way to upgrade existing DBs to the latest Xapian
database format (currently "glass" for stable/released
versions). Our use of Xapian relies on preserving document IDs,
so we'll wrap it like we do xapian-compact(1) and use the
"--no-renumber" switch.
I could not name the tool "public-inbox-copydatabase" since it
would be ambiguous as to which DB it's actually copying. So, I
abbreviated the suffix to "xcpdb" (Xapian CoPy DataBase), which
I hope is acceptable and unambiguous.
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This is assuming nobody uses flint or earlier, anymore;
as flint predates the existence of this project.
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In retrospect, introducing V1Writable was unnecessary and
InboxWritable->importer is in a better position to abstract
away differences between v1 and v2 writers.
So teach InboxWritable to initialize inboxes and get rid
of V1Writable.
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Can't run the test if the required Xapian tools are missing.
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None of the Search::Xapian-dependent stuff works without DBI
and DBD::SQLite.
There are no plans to support Xapian w/o DBD::SQLite since
SQLite is more common and less resource-intensive than Xapian.
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This test was not disabled properly for ancient versions of
git without get-mark support.
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* origin/xap-optional:
admin: improve warnings and errors for missing modules
searchidx: do not create empty Xapian partitions for basic
lazy load Xapian and make it optional for v2
www: use Inbox->over where appropriate
nntp: use Inbox->over directly
inbox: add ->over method to ease access
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It's only useful for a corner case in long-running daemons when
an admin decides to compact or vacuum a Xapian or SQLite DB.
As a result, other scripts should run slightly faster. For
instance, this saves about 80ms (2.710s => 2.630s) in t/mda.t
on my remote workstation.
While we're at it, make sure EvCleanup is properly require'd
in Daemon.pm and HTTP.pm and document our use of Devel::Peek.
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No point in leaving a mess of empty directories when Xapian
doesn't load.
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More tests work without Search::Xapian, now.
Usability issues still need to be fixed
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