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2020-04-09triewyde: ficks soem speling errrors
Dikshunarees R gude!
2020-04-05release large (non ref) scalars using `undef $sv'
Using `undef EXPR' like a function call actually frees the heap memory associated with the scalar, whereas `$sv = undef' or `$sv = ""' will hold the buffer around until $sv goes out of scope. The `sv_set_undef' documentation in the perlapi(1) manpage explicitly states this: The perl equivalent is "$sv = undef;". Note that it doesn't free any string buffer, unlike "undef $sv". And I've confirmed by reading Dump() output from Devel::Peek. We'll also inline the old index_body sub in SearchIdx.pm to make the scope of the scalar more obvious. This change saves several hundred kB RSS on both -index and -httpd when hitting large emails with thousands of lines.
2020-04-03quiet "Complex regular subexpression recursion limit" warnings
These seem mostly harmless since Perl will just truncate the match and start a new one on a newline boundary in our case. The only downside is we'd end up with redundant <span> tags in HTML. Limiting the number of line matched ourselves with `{1,$NUM}' doesn't seem prudent since lines vary in length, so we continue to defer the job of limiting matches to the Perl regexp engine. I've noticed this warning in practice on 100K+ line patches to locale data.
2020-04-02searchidx: v1: skip mid_clean on mid_mime results
We do not need run mid_clean() since mid_mime() uses mids() to extract the msgid from inside the angle brackets.
2020-03-29searchidxshard: ensure we set indexlevel on shard[0]
For sharded v2 repositories with few-enough messages, it is possible for shard[0] to go unused and never trigger the ->commit_txn_lazy to set the indexlevel field in Xapian metadata. So set it immediately at initialization and avoid this case. While we're at it, avoid triggering needless pwrite syscalls from ->set_metadata by checking with ->get_metadata, first.
2020-03-22*idx: pass smsg in even more places
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.
2020-03-22*idx: pass $smsg in more places instead of many args
We can pass blessed PublicInbox::Smsg objects to internal indexing APIs instead of having long parameter lists in some places. The end goal is to avoid parsing redundant information each step of the way and hopefully make things more understandable.
2020-03-22overidx: parse_references: less error-prone args
Favor `$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.
2020-03-22smsg: to_doc_data: use existing fields
No need to pass extra parameters to this method, since smsg has universal meanings for {blob} and {mid}.
2020-03-22rename PublicInbox::SearchMsg => PublicInbox::Smsg
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.
2020-03-22index: use git commit times on missing Date/Received
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.
2020-02-06treewide: run update-copyrights from gnulib for 2019
I didn't wait until September to do it, this year!
2020-01-27searchidx: don't assume "a/" and "b/" as prefixes
Some people use "--{src,dst}-prefix=", try to deal with those since git-apply can handle them when called by solver.
2020-01-27searchidx: skip filenames on "diff --git ..."
We already capture filenames on the lines beginning with "---" and "+++", so it's redundant work to capture filenames from "diff --git ..." lines.
2020-01-27search: {version} => {ibx_ver}
We don't confuse human readers with the Xapian schema version. We also want to make it obvious this is the version of the inbox we're indexing, these are Search or SearchIdx objects, not Inbox objects.
2020-01-27inbox: add ->version method
This allows us to simplify version checking by avoiding "//" or "||" operators sprinkled around.
2020-01-11spawn (and thus popen_rd) die on failure
Most spawn and popen_rd callers die on failure to spawn, anyways, and some are missing checks entirely. This saves us a bunch of verbose error-checking code in callers. This also makes popen_rd more consistent, since it already dies on pipe creation failures.
2020-01-06treewide: "require" + "use" cleanup and docs
There's a bunch of leftover "require" and "use" statements we no longer need and can get rid of, along with some excessive imports via "use". IO::Handle usage isn't always obvious, so add comments describing why a package loads it. Along the same lines, document the tmpdir support as the reason we depend on File::Temp 0.19, even though every Perl 5.10.1+ user has it. While we're at it, favor "use" over "require", since it it gives us extra compile-time checking.
2020-01-04searchidx: remove_message: pedantic fix for v1
It shouldn't be possible for v1 inboxes to have multiple matches for a given Message-ID, so the sub would only get called once, but strange things could happen in 2112 :>
2020-01-04searchidx: index_text: use Xapian parameter names
Use the parameter names from the Search::Xapian::TermGenerator manpage for our local variables instead of confusing names...
2020-01-04searchidx: simplify quote-splitting in index_body
We now use the same regexp View::add_text_body uses.
2020-01-04searchidx: add_message: fix and make use of prototypes
Procedural function calls allow prototype checking, and our add_message prototype was totally wrong to begin with. Convert most of the "$self->index_*" calls to "index_*($self" While we're at it, use "//=" to avoid some "unless" statements.
2020-01-04searchidx: split off index_xapian for msg_iter
This ought to save some memory, but it's probably lost in the noise given the cost of indexing. Regardless it still reduces the indentation level and makes future changes easier to read.
2020-01-04searchidx: index_diff: allow /^$/ line as diff context
As discovered by solver bug hunting, "git apply" also handles the case where blank lines w/o leading space are treated as diff context, apparently because GNU diff once did it: https://public-inbox.org/git/b507b465f7831612b9d9fc643e3e5218b64e5bfa/s/
2019-12-24search: support SWIG-generated Xapian.pm
Xapian upstream is slowly phasing out the XS-based Search::Xapian in favor of the SWIG-generated "Xapian" package. While Debian and both FreeBSD have Search::Xapian, OpenBSD only includes the "Xapian" binding. More information about the status of the "Xapian" Perl module here: https://trac.xapian.org/ticket/523
2019-12-24searchidx: call "++" on PostingIterator instead of "->inc"
The "++" is not yet available in the SWIG-based "Xapian.pm" Perl bindings, so use "++" where it's supported in both the XS (Search::Xapian) and SWIG-based Xapian binding.
2019-12-15searchidx: do not modify read-only $1 via git_unquote
git_unquote works in-place, and we sometimes see strange filenames, or badly munged diffs with terminal escape characters (for colorization) end up in emails.
2019-11-04index: "git log" failures are fatal
While I've never seen "git log" fail on its own, it could happen one day and we should be prepared to abort indexing when it happens. Beef up tests for t/spawn.t to ensure close() behaves on popen_rd the way we expect it to.
2019-10-28index: allow search/lookups on X-Alt-Message-ID
Since we replace extra Message-ID headers with X-Alt-Message-ID to placate NNTP clients, we should allow searching and indexing on X-Alt-Message-ID just like we do with Message-ID.
2019-10-16config: support "inboxdir" in addition to "mainrepo"
"mainrepo" ws a bad name and artifact from the early days when I intended for there to be a "spamrepo" (now just the ENV{PI_EMERGENCY} Maildir). With v2, "mainrepo" can be especially confusing, since v2 needs at least two git repositories (epoch + all.git) to function and we shouldn't confuse users by having them point to a git repository for v2. Much of our documentation already references "INBOX_DIR" for command-line arguments, so use "inboxdir" as the git-config(1)-friendly variant for that. "mainrepo" remains supported indefinitely for compatibility. Users may need to revert to old versions, or may be referring to old documentation and must not be forced to change config files to account for this change. So if you're using "mainrepo" today, I do NOT recommend changing it right away because other bugs can lurk. Link: https://public-inbox.org/meta/874l0ice8v.fsf@alyssa.is/
2019-09-09run update-copyrights from gnulib for 2019
2019-06-15comments: replace "partition" with "shard"
Now that the code matches Xapian terminology, ensure our comments match, too.
2019-06-14search*: rename {partition} => {shard}
Another step towards keeping our internal data structures consistent with Xapian naming.
2019-06-14searchidx: require PublicInbox::Inbox (or InboxWritable) ref
PublicInbox::Inbox objects have minimal dependencies, so drop code to support old tests which existed before the PublicInbox::Inbox object came into existence.
2019-06-12searchidx: improve error message when Xapian fails
Make it easier to detect if a partition is corrupt.
2019-05-29searchidx: store indexlevel=medium as metadata
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).
2019-05-27searchidx: fix obvious typo
We can't pass an empty string to `git merge-base --is-ancestor' AFAIK, this did NOT present issues in the current test suite.
2019-05-23xcpdb: show re-indexing progress
Emit information about reindexing git revision ranges when used with xcpdb. Additionally, distinguish Xapian copy output from v2 git epoch counting by increasing directory context info. For now, v1 batches batches are emitted. v2 indexing is still missing progress reporting for batches, as the data structures for reindexing would benefit from a refactoring, first. This does not currently affect the use of public-inbox-index, but may in the future.
2019-05-23xcpdb: use fine-grained locking
Copying an entire Xapian DB takes a long time, so update our reindexing code to support partial reindexing, snapshot the pre-copydatabase git revisions, perform the lengthy copy, and do a partial reindex when the copy + renames are done.
2019-05-21Merge remote-tracking branch 'origin/xap-optional' into master
* 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
2019-05-21searchidx: remove unused Compress::Zlib import
We only compress in OverIdx, now; since we no longer do overview stuff in Xapian (and Xapian compresses document data, anyways).
2019-05-15searchidx: do not create empty Xapian partitions for basic
No point in leaving a mess of empty directories when Xapian doesn't load.
2019-05-15lazy load Xapian and make it optional for v2
More tests work without Search::Xapian, now. Usability issues still need to be fixed
2019-05-14searchidx: fix incremental index with indexlevel=basic on v1
We were reindexing the full history every invocation of -index when Xapian was not used because we were incorrectly relying on 'last_commit' metadata stored in Xapian. Rewrite the indexing logic to be less confusing while we're at it, since we rely on `git merge-base --is-ancestor' nowadays. Furthermore, we need to handle message removals from the overview index correctly when Xapian is not in use. Co-authored-by: Eric W. Biederman <ebiederm@xmission.com>
2019-01-15searchidx: move git_unquote to PublicInbox::Git
We'll be using it outside of searchidx...
2019-01-10Merge commit 'mem'
* 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
2019-01-10check git version requirements
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.
2019-01-08searchmsg: remove Xapian::Document field
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.
2019-01-05index: quiet down git-log error messages on new inboxes
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".
2018-12-30handle "multipart/mixed" messages which are not multipart
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.