Summary:
The immediate issue this addresses is T1366, adding a rendering cache to Phriction. For wiki pages with code blocks especially, rerendering them each time is expensive.
The broader issue is that out markup caches aren't very good right now. They have three major problems:
**Problem 1: the data is stored in the wrong place.** We currently store remarkup caches on objects. This means we're always loading it and passing it around even when we don't need it, can't genericize cache management code (e.g., have one simple script to drop/GC caches), need to update authoritative rows to clear caches, and can't genericize rendering code since each object is different.
To solve this, I created a dedicated cache database that I plan to move all markup caches to use.
**Problem 2: time-variant rules break when cached.** Some rules like `**bold**` are time-invariant and always produce the same output, but some rules like `{Tnnn}` and `@username` are variant and may render differently (because a task was closed or a user is on vacation). Currently, we cache the raw output, so these time-variant rules get locked at whatever values they had when they were first rendered. This is the main reason Phriction doesn't have a cache right now -- I wanted `{Tnnn}` rules to reflect open/closed tasks.
To solve this, I split markup into a "preprocessing" phase (which does all the parsing and evaluates all time-invariant rules) and a "postprocessing" phase (which evaluates time-variant rules only). The preprocessing phase is most of the expense (and, notably, includes syntax highlighting) so this is nearly as good as caching the final output. I did most of the work here in D737 / D738, but we never moved to use it in Phabricator -- we currently just do the two operations serially in all cases.
This diff splits them apart and caches the output of preprocessing only, so we benefit from caching but also get accurate time-variant rendering.
**Problem 3: cache access isn't batched/pipelined optimally.** When we're rendering a list of markup blocks, we should be able to batch datafetching better than we do. D738 helped with this (fetching is batched within a single hunk of markup) and this improves batching on cache access. We could still do better here, but this is at least a step forward.
Also fixes a bug with generating a link in the Phriction history interface ($uri gets clobbered).
I'm using PHP serialization instead of JSON serialization because Remarkup does some stuff with non-ascii characters that might not survive JSON.
Test Plan:
- Created a Phriction document and verified that previews don't go to cache (no rows appear in the cache table).
- Verified that published documents come out of cache.
- Verified that caches generate/regenerate correctly, time-variant rules render properly and old documents hit the right caches.
Reviewers: btrahan
Reviewed By: btrahan
CC: aran
Maniphest Tasks: T1366
Differential Revision: https://secure.phabricator.com/D2945
Summary:
Currently, a change may affect a very large number of paths. When we run the OwnersWorker on it, we'll execute a query which looks up packages for the paths. This may exceed "max_allowed_packet". Instead, break the list of paths into smaller chunks.
This is mostly to unblock r4nt / llvm, I'm going to add a more finessed approach to array_chunk() shortly.
Test Plan: Ran `reparse.php --owners` on a revision which affected packages, verified results are the same before and after the change. Set chunk size to 1, verified query results aggregated properly.
Reviewers: btrahan, jungejason, nh
Reviewed By: jungejason
CC: aran
Differential Revision: https://secure.phabricator.com/D2943
Summary:
Certain types of things we should be storing in edges (notably, Task X depends on Task Y) should always be acyclic. Allow `PhabricatorEdgeEditor` to enforce this, since we can't correctly enforce it outside of the editor without being vulnerable to races.
Each edge type can be marked acyclic. If an edge type is acyclic, we perform additional steps when writing new edges of that type:
- We acquire a global lock on the edge type before performing any reads or writes. This ensures we can't produce a cycle as a result of a race where two edits add edges which independently do not produce a cycle, but do produce a cycle when combined.
- After performing writes but before committing transactions, we load the edge graph for each acyclic type and verify that it is, in fact, acyclic. If we detect cycles, we abort the edit.
- When we're done, we release the edge type locks.
This is a relatively high-complexity change, but gives us a simple way to flag an edge type as acyclic in a robust way.
Test Plan: Ran unit tests.
Reviewers: btrahan
Reviewed By: btrahan
CC: aran
Maniphest Tasks: T1162
Differential Revision: https://secure.phabricator.com/D2940
Summary:
Currently, multiple unit tests that acquire global locks will interfere with each other. Namespace the locks so they don't.
(Possibly we should also rename this to PhabricatorStorageNamespaceLock or something since it's not really global any more, but that's kind of unwieldy...)
Test Plan: Acquired locks with --trace and verified they were namespaced properly.
Reviewers: btrahan
Reviewed By: btrahan
CC: aran
Maniphest Tasks: T1162
Differential Revision: https://secure.phabricator.com/D2939
Summary:
In unit tests which use fixtures, we open transactions on every connection we establish. However, since we don't track connections that are established with "$force_new" (currently, only GlobalLock connections) we never close these transactions normally.
Instead of not tracking these connections, track them using unique keys so we'll never get a cache hit on them.
Test Plan: Built unit tests on top of this, had them stop dying from unclosed transactions.
Reviewers: btrahan
Reviewed By: btrahan
CC: aran
Maniphest Tasks: T1162
Differential Revision: https://secure.phabricator.com/D2938
Summary:
A later diff adds unit tests against edges, but we need real objects to connect with edges. Add some trivial objects to the Harbormaster database to compliment the similar HarbormasterScratchTable.
On its own, this does nothing interesting.
Test Plan: Built unit tests on this in a followup.
Reviewers: btrahan
Reviewed By: btrahan
CC: aran
Maniphest Tasks: T1162
Differential Revision: https://secure.phabricator.com/D2937
Summary: GitHub moved these pages around and made it easier to find your application list.
Test Plan: Read docs, verified links are correct.
Reviewers: btrahan
Reviewed By: btrahan
CC: aran
Differential Revision: https://secure.phabricator.com/D2941
Summary:
We have a bit more copy-paste than we need, consolidate a bit.
(Also switch Mercurial to download git diffs, which it handles well; we use them in "arc patch".)
Test Plan:
- Downloaded a raw diff from Differential.
- Downloaded a raw change from Diffusion.
- Downloaded a raw file from Diffusion.
Reviewers: btrahan
Reviewed By: btrahan
CC: aran
Differential Revision: https://secure.phabricator.com/D2942
Summary: This is a fairly contentious default that we can easily move to configuration.
Test Plan: Changed the default, changed my user setting, reverted my user setting, verified the "settings" page.
Reviewers: btrahan
Reviewed By: btrahan
CC: aran
Differential Revision: https://secure.phabricator.com/D2935
Summary: Currently, Diffusion supports highlighting of line ranges passed in the URI. It would be helpful to be able to highlight multiple line ranges.
Test Plan: Accessed directly via URL in my sandbox. Seems to work. I'm not sure what other components use this functionality, but this change should be backwards compatible.
Reviewers: epriestley
Reviewed By: epriestley
CC: aran, epriestley, Korvin
Differential Revision: https://secure.phabricator.com/D2921
Summary:
Brazenly copied from differential.close. Ulterior motive
is to be able to automate discarding of useless commits from
arcanist testing.
Test Plan:
Called method in phabricator sandbox. Revisions were
successfully abandoned.
Reviewers: epriestley
Reviewed By: epriestley
CC: nh, aran, Korvin
Differential Revision: https://secure.phabricator.com/D2928
Summary: Depends on D2926. Adds a simple CLI client for Aphlict to make it easier to debug stuff.
Test Plan: Ran client, saw debug messages.
Reviewers: btrahan
Reviewed By: btrahan
CC: aran
Differential Revision: https://secure.phabricator.com/D2927
Summary:
See discussion here:
https://secure.phabricator.com/chatlog/channel/%23phabricator/?at=21186
Basically, MySQL usually raises a good error if we exceed "max_allowed_packet":
EXCEPTION: (AphrontQueryException) #1153: Got a packet bigger than 'max_allowed_packet' bytes
But sometimes it gives us a #2006 instead. This is documented, at least:
>"With some clients, you may also get a Lost connection to MySQL server during query error if the communication packet is too large."
http://dev.mysql.com/doc/refman//5.5/en/packet-too-large.html
Try to improve the error message to point at this as a possible explanation.
Test Plan: Faked an error, had it throw, read exception message. See also chatlog.
Reviewers: btrahan, skrul
Reviewed By: skrul
CC: aran
Differential Revision: https://secure.phabricator.com/D2923
Summary: See D2924.
Test Plan: Ran locks with blocking timeouts.
Reviewers: btrahan
Reviewed By: btrahan
CC: aran
Differential Revision: https://secure.phabricator.com/D2925
Summary:
accessibility covers not only a given post but also the various "published" views.
to keep the code relative clean, this diff also splits up the post list controller logic quite a bit. this also feels like good preparation for some other work around introducing "blogs" which are collections of published posts from bloggers with some fancy features around that.
Test Plan: clicked around various parts of the Phame application as a logged in user, a logged in user with no personal posts, and without any user logged in at all. various views all seemed reasonable.
Reviewers: epriestley
Reviewed By: epriestley
CC: aran, Korvin
Maniphest Tasks: T1373
Differential Revision: https://secure.phabricator.com/D2898
Summary:
See T1448. If this file isn't present, just move on instead of failing, since it's a (sort of) legitimate repository state.
Also fix some silliness a little later that got introduced in refactoring, I think.
Test Plan: Added an external to my test repo and removed ".gitmodules". Verified that the directory is now viewable after this patch.
Reviewers: btrahan, davidreuss, jungejason
Reviewed By: davidreuss
CC: aran
Maniphest Tasks: T1448
Differential Revision: https://secure.phabricator.com/D2922
Summary:
binary_safe_diff is needed in arcanist too. Moved it over to
arcanist. See D2915.
Test Plan: diffusion page rendered correctly on binary file.
Reviewers: epriestley
Reviewed By: epriestley
CC: aran, Korvin
Differential Revision: https://secure.phabricator.com/D2916
Summary: Did exactly what @epriestley suggested in T1428#2.
Test Plan: Turn it on in your config, post a revision, accept it. Turn it off in your config, post a revision, can't accept it.
Reviewers: epriestley
Reviewed By: epriestley
CC: aran, Korvin
Differential Revision: https://secure.phabricator.com/D2900
Summary:
PhabricatorAccessLog called date() before we set the timezone; this
reorders the commands.
Test Plan: loaded my sandbox; checked log to see that hphp didn't complain
Reviewers: epriestley, jungejason
Reviewed By: epriestley
CC: aran, Korvin
Differential Revision: https://secure.phabricator.com/D2911
Summary: See D2906. This just adds text so they render pretty.
Test Plan:
Got pretty emails and rendered transactions.
{F13706}
Reviewers: btrahan, davidreuss
Reviewed By: btrahan
CC: aran
Differential Revision: https://secure.phabricator.com/D2907
Summary:
- See D2741.
- When EdgeEditor performs edits, emit events.
- Listen for Maniphest edge events and save the changes as transactions.
- Do all this in a reasonably generic way that won't take too much rewriting as we use edges more generally.
Test Plan: Attached and detached commits from tasks, saw reasonable-looking transactions spring into existence.
Reviewers: btrahan, davidreuss
Reviewed By: btrahan
CC: aran
Differential Revision: https://secure.phabricator.com/D2906
Summary: Simplify FeedQuery by making it extend from PhabricatorIDPagedPolicyQuery
Test Plan: Looked at feed on home, projects, user profile, and called `feed.query`.
Reviewers: btrahan
Reviewed By: btrahan
CC: aran
Differential Revision: https://secure.phabricator.com/D2905
Summary: I broke this when converting to PhabricatorUserEditor.
Test Plan:
Ran `accountadmin`, created an admin account, verified the "new value" column showed "Y".
ACCOUNT SUMMARY
OLD VALUE NEW VALUE
Username derp
Real Name derprp
Email derp@derp.com
Password Unchanged
Admin N Y
Reviewers: btrahan, nikil
Reviewed By: btrahan
CC: aran
Maniphest Tasks: T1434
Differential Revision: https://secure.phabricator.com/D2908
Summary: This code is duplicated in two places; share it.
Test Plan: Looked at feed and notifications.
Reviewers: btrahan
Reviewed By: btrahan
CC: aran
Differential Revision: https://secure.phabricator.com/D2901
Summary: This is both only partially complete (supports Maniphest only) and somewhat overcomplicated (includes support for applying similar algorithms to Feed), but provides runtime aggregation of notifications.
Test Plan: {F13502}
Reviewers: btrahan, jungejason
Reviewed By: btrahan
CC: aran
Differential Revision: https://secure.phabricator.com/D2884
Summary: Explain how these work. Let me know if there's a clearer way to explain "arc:bookmark".
Test Plan: Generated / viewed documentation.
Reviewers: dschleimer
Reviewed By: dschleimer
CC: aran
Maniphest Tasks: T1233
Differential Revision: https://secure.phabricator.com/D2868
Summary: The blue thunderbolt looked out of place on the red admin pages; now it matches the colors from the admin Phabricator logo.
Test Plan: Go to an admin page, see a red thunderbolt. Go to a not-admin page, see a blue thunderbolt.
Reviewers: epriestley
CC: aran, Korvin
Maniphest Tasks: T1427
Differential Revision: https://secure.phabricator.com/D2895
Summary:
Oh man, after the explode/map, the output when no references is actually
array(1) {
[0]=> string(0) ""
}
.. making the falsey check fail to work as expected.
Test Plan: same as D2892, but with a little more scrutiny :p
Reviewers: epriestley
Reviewed By: epriestley
CC: aran, Korvin
Differential Revision: https://secure.phabricator.com/D2893
Summary:
When there are no other references (and there will be none ususally,
if D2891 is accepted), we would show "References:" with empty contents.
Avoid that by testing for empty output after applying stupid filtering.
Test Plan: Looked in a standard repository with no special refs.
Reviewers: epriestley
Reviewed By: epriestley
CC: aran, Korvin
Differential Revision: https://secure.phabricator.com/D2892
Summary:
Diff of diffs display changes between new versions of file.
This is bad after rebase because there can be many unrelated changes so it is hard to spot the real change.
This diff unhighlights the lines that were added or removed in rebase.
The changes are still visible (they can be sometimes relevant) but very subtle.
Test Plan:
# Add, change and delete line. Display diff.
# Add and change some lines in parent. Rebase. Display diff. Display diff of diff.
# Change and add some lines. Display diff. Display diff to first diff. Display diff to second diff.
Reviewers: epriestley, jungejason
Reviewed By: jungejason
CC: jungejason, aran, Korvin
Differential Revision: https://secure.phabricator.com/D2761
Summary:
The locks held by read-only pullLocal daemons were causing our discovery instance
to not get the lock and fail at discovery. We don't need to hold the lock while
pulling (only while discovering), so this moves the lock to the appropriate place.
Test Plan: tested in production
Reviewers: jungejason, epriestley, vrana
Reviewed By: jungejason
CC: aran, Korvin
Differential Revision: https://secure.phabricator.com/D2890
Summary: They just beg to be clicked.
Test Plan: clicked furiously with my mouse until i got tired - went expected places.
Reviewers: epriestley
Reviewed By: epriestley
CC: aran, Korvin
Differential Revision: https://secure.phabricator.com/D2889
