Summary:
Ref T4100.
- Make it easy to choose all open or closed tasks.
- Make "special" tokenizers composable.
- Get `viewer()` generating documentation properly.
Test Plan:
- Ran queries with new tokens.
- Browsed new tokens.
- Viewed docs on new tokens.
- Used plain status tokens.
Reviewers: btrahan
Reviewed By: btrahan
Subscribers: chad, epriestley
Maniphest Tasks: T4100
Differential Revision: https://secure.phabricator.com/D12530
Summary: Ref T4100. Add a function datasource for filtering mailable objects (e.g., subscribers).
Test Plan: Searched for objects with "Current Viewer", "Members: Dog Project", etc., as a subscriber in global search.
Reviewers: btrahan
Reviewed By: btrahan
Subscribers: epriestley
Maniphest Tasks: T4100
Differential Revision: https://secure.phabricator.com/D12524
Summary:
Ref T4100.
- Removes the "with unowned" checkbox in favor of the "no owners" function.
- Support functions in "Authors" and "Owners".
Test Plan:
- Ran various global search and Maniphest queries.
{F379931}
Reviewers: btrahan
Reviewed By: btrahan
Subscribers: epriestley
Maniphest Tasks: T4100
Differential Revision: https://secure.phabricator.com/D12523
Summary:
- Now that we have "browse", this is a much more reasonable control for random sets of things.
- The new explicit search scope selector reduces the need to fiddle with this field manually, too.
Test Plan:
{F379292}
{F379293}
Reviewers: chad, btrahan
Reviewed By: btrahan
Subscribers: epriestley
Differential Revision: https://secure.phabricator.com/D12510
Summary: Ref T7573. Unify code to fetch these counts and do some light formatting since we're going to need to do the same thing for some conpherence-specific ajax in the durable column (See T7708).
Test Plan: loaded up two tabs, one with a durable column on and one without. in the without browser, i read some messages, decrementing my unread count. when i navigated again in the durable column browser, the count updated correctly. with no notifications, commented on a task with another user to get a notification and it showed up properly. visited the task by clicking not the notification and the bubble count decremented correctly
Reviewers: epriestley
Reviewed By: epriestley
Subscribers: Korvin, epriestley
Maniphest Tasks: T7573
Differential Revision: https://secure.phabricator.com/D12498
Summary: Ref T4100. This integration into the "Browse" dialog is probably a little more heavy-handed than we should shoot for.
Test Plan:
{F377131}
{F377132}
Reviewers: btrahan, chad
Reviewed By: chad
Subscribers: epriestley
Maniphest Tasks: T4100
Differential Revision: https://secure.phabricator.com/D12482
Summary: Ref T4100. Support viewer(), members(), and add a new none().
Test Plan:
- Used all new functions.
- Batch edited tasks with unassign action.
- Saved a query from master, upgrade it to this patch, checkbox migrated cleanly into a "no one" token.
Reviewers: btrahan
Reviewed By: btrahan
Subscribers: epriestley
Maniphest Tasks: T4100
Differential Revision: https://secure.phabricator.com/D12470
Summary:
Ref T4100. Ref T5595. This allows you to execute all "Projects", "Any Project", "Not in projects" and "include no projects" operations in one field.
It doesn't actually implement such a field yet.
Test Plan: {F375516}
Reviewers: btrahan
Reviewed By: btrahan
Subscribers: epriestley
Maniphest Tasks: T5595, T4100
Differential Revision: https://secure.phabricator.com/D12460
Summary: Ref T4100. Implement members() in terms of the real projects datasource.
Test Plan: Used members() functions in Differential, browsed members() functions.
Reviewers: btrahan
Reviewed By: btrahan
Subscribers: epriestley
Maniphest Tasks: T4100
Differential Revision: https://secure.phabricator.com/D12459
Summary:
Ref T4100. This is like members(), but is implemented on top of the raw datasource. This is a lot simpler and involves way less code duplication.
I'll go back and implement members() like this, too.
Nothing actually uses this yet.
Test Plan:
- Used browse view to browse datasource.
Reviewers: btrahan
Reviewed By: btrahan
Subscribers: epriestley
Maniphest Tasks: T4100
Differential Revision: https://secure.phabricator.com/D12458
Summary:
Ref T4100. Ref T5595. This allows PolicyAwareQuery to write all the logic for AND, OR, NOT, and NULL (i.e., "not in any projects") queries against any edge type.
It accepts an edge type and a list of constraints (which are basically just operator-value pairs, like `<NOT, PHID-X-Y>`, meaning the results must not have an edge connecting them to `PHID-X-Y`).
This doesn't actually do anything yet; see future diffs.
Test Plan: `arc unit --everything`
Reviewers: btrahan
Reviewed By: btrahan
Subscribers: epriestley
Maniphest Tasks: T4100, T5595
Differential Revision: https://secure.phabricator.com/D12455
Summary:
This allows a merchant to send a user an invoice for something arbitrary, like services rendered.
Two major missing parts:
- These don't actually get marked as invoices. I'll fix that in the next diff, but it's not entirely trivial because `subscriptionPHID` is currently overloaded to also mean "is invoice".
- We don't send email automatically. I don't plan to fix that for now, since all our invoicing needs are covered by personal email.
Test Plan:
Merchants have a new "new invoice" option:
{F376999}
This leads to selecting a user and account, and then you can generate the invoice (only one actual "purchase" / line item for the moment). You can add a longer-form remarkup description to contextualize the billable items:
{F377001}
This sends the invoice and takes you to the merchant order overview screen:
{F377002}
For now, you copy/paste that link into a nice personal enterprisey business-to-business email; the recipient sees this:
{F377003}
Reviewers: btrahan
Reviewed By: btrahan
Subscribers: epriestley
Differential Revision: https://secure.phabricator.com/D12478
Summary:
Ref T4100. Overall:
- Use token background color to communicate token type (blue = object, yellow = function, grey = disabled/closed, red = invalid).
- Use token icon color to make color choices consistent (specifically, use project icon colors in project tokens).
- For functions, use token icon to communicate function result type (e.g., viewer() has a user icon; members(...) has a group icon), since we don't need the icon to indicate "this is a function" anymore.
Test Plan:
{F374615}
{F374616}
{F374617}
Reviewers: chad, btrahan
Reviewed By: btrahan
Subscribers: epriestley
Maniphest Tasks: T4100
Differential Revision: https://secure.phabricator.com/D12446
Summary:
Ref T4100. This is still a bit rough around the edges, but mostly does what we're after.
- Implements viewer() and members(...) functions.
- The new browse workflow makes these discoverable.
Test Plan: {F374201}
Reviewers: btrahan
Reviewed By: btrahan
Subscribers: chad, epriestley
Maniphest Tasks: T4100
Differential Revision: https://secure.phabricator.com/D12444
Summary: Ref T5750. Move the server-side token rendering code to a shared location and use it in the browse view.
Test Plan: {F372252}
Reviewers: btrahan
Reviewed By: btrahan
Subscribers: epriestley
Maniphest Tasks: T5750
Differential Revision: https://secure.phabricator.com/D12424
Summary:
D12409 made me realize this was a bit janky. `PhabricatorTransactionView` was only being used by Conpherence, so move and rename that class to `ConpherenceTransactionView`. Also, rename the existing `ConpherenceTransactionView` to `ConpherenceTransactionRenderer`, moving the actual view bits into the new `ConpherenceTransactionView`. Resulting code is a bit cleaner IMO.
Diff 1 of 2 (second diff has to be written. =D). Diff 2 will take care of the CSS and possibly clean things up further.
Test Plan: played around in conpherence full and conpherence column and things looked nice
Reviewers: epriestley
Reviewed By: epriestley
Subscribers: Korvin, epriestley
Differential Revision: https://secure.phabricator.com/D12410
Summary: Ref T7756. Now viewing individual threads in Conpherence is `ZXXX` driven. Also adds remarkup support.
Test Plan: clicked around on list of conpherences in full view and it worked. selected 'view in conpherence' action from column and loaded correct `ZXXX` uri. Typed `ZXXX` in Maniphest and saw it link to Conpherence room.
Reviewers: epriestley
Reviewed By: epriestley
Subscribers: Korvin, epriestley
Maniphest Tasks: T7756
Differential Revision: https://secure.phabricator.com/D12397
Summary:
Ref T7803. Queries currently have a single `getPagingColumn()`, which is oversimplified and insufficient to describe many ordering operations. Frequently, orders must span multiple columns.
Move toward an "order vector", which is a list of orderable values like "name, id". These map directly to columns, and are sufficient to actually describe orders. The more modern Query classes (Maniphest, Repository) essentially do this manually anyway.
Test Plan:
- Added and executed unit tests.
- Browsed around, verified the correct ORDER BY clauses were generated.
Reviewers: btrahan
Reviewed By: btrahan
Subscribers: epriestley
Maniphest Tasks: T7803
Differential Revision: https://secure.phabricator.com/D12352
Summary:
Fixes T7601. Ref T7803, weakly (this removes a Query subclass with ad-hoc paging). Herald has a very old edit log which predates transactions and is essentially useless and not really policy-aware. I think it's doing more harm than good; remove it.
Herald rules have proper transactions, but rule edits don't currently render something nice into the transaction log. This is definitely the way forward, but we haven't seen requests for this so don't bother building it for now.
I did put a nice end-cap on the transaction log, though.
Test Plan:
- Viewed Herald UI.
- Grepped for removed classes and methods.
- Edited a rule.
- Viewed rule transaction log.
Reviewers: btrahan
Reviewed By: btrahan
Subscribers: cburroughs, chad, epriestley
Maniphest Tasks: T7601, T7803
Differential Revision: https://secure.phabricator.com/D12346
Summary: Fixes T7694. I had to complicate the `ConpherenceThreadQuery` code slightly so that if we specify id(s) or phid(s) then we don't bother with all that join stuff we need to make sure we have a reasonable query in production.
Test Plan: `bin/remove destroy ZXX` worked! tried to visit `ZXX` and got a nice 404. Clicked around and couldn't find anything broken because of the deletion
Reviewers: epriestley
Reviewed By: epriestley
Subscribers: Korvin, epriestley
Maniphest Tasks: T7756, T7694
Differential Revision: https://secure.phabricator.com/D12304
Summary:
Ref T5501. Currently, we emit some bad warnings about, e.g., "apc.stat" on PHP 5.5+ systems with OPcache, where the warnings are not relevant.
Generate and raise warnings out of the CacheSpec pipeline so we only run relevant code.
Test Plan: Faked various warnings and saw them render correctly.
Reviewers: btrahan
Reviewed By: btrahan
Subscribers: epriestley
Maniphest Tasks: T5501
Differential Revision: https://secure.phabricator.com/D12318
Summary:
Ref T5501. This code was headed down a bad road; dump an indirection layer between rendering and data gatehring.
In particular, this will make it much easier to lift these issues into setup warnings eventually.
Test Plan: Viewed cache status page.
Reviewers: btrahan
Reviewed By: btrahan
Subscribers: epriestley
Maniphest Tasks: T5501
Differential Revision: https://secure.phabricator.com/D12315
Summary:
Ref T5501. This is just getting version detection and availability right, probably.
Eventually, this will get lifted up a bit and "$remedy" will turn into setup issues (or maybe one setup issue saying "your cache setup is messed up, click here to understand why").
Test Plan:
{F362935}
I intend to shove these up to production one-by-one since production is APC and local is Opcache + APCu.
Reviewers: btrahan
Reviewed By: btrahan
Subscribers: epriestley
Maniphest Tasks: T5501
Differential Revision: https://secure.phabricator.com/D12314
Summary:
Fixes T7484. There's a bunch of spooky mystery here but the current behavior can probably cause problems in at least some situations.
Also moves a couple callsigns to monograms (see T4245).
Test Plan:
- Faked a short lock length to hit the exception.
- Updated normally.
- Grepped for other use sites, none seemed suspicious or likely to overflow the lock length.
Reviewers: btrahan
Reviewed By: btrahan
Subscribers: epriestley
Maniphest Tasks: T7484
Differential Revision: https://secure.phabricator.com/D12263
Summary:
Fixes T7199. This still isn't a shining example of perfect code, but the raw amount of copy/paste is much lower than it used to be.
- Reduce code duplication between existing receivers.
- Expose receiving objects in help menus where appropriate.
- Connect some "TODO" receivers.
Test Plan:
- Sent mail to every supported object type.
Reviewers: btrahan
Reviewed By: btrahan
Subscribers: epriestley
Maniphest Tasks: T7199
Differential Revision: https://secure.phabricator.com/D12249
Summary: Ref T7199. Implements `!projects` for all objects which implement `PhabricatorProjectInterface`.
Test Plan: Added projects to a task via email.
Reviewers: btrahan
Reviewed By: btrahan
Subscribers: epriestley
Maniphest Tasks: T7199
Differential Revision: https://secure.phabricator.com/D12246
Summary:
Ref T7199. Convert the single help menu item into a dropdown and allow applications to list multiple items there.
When an application has mail command objects, link them in the menu.
Test Plan:
{F355925}
{F355926}
Reviewers: btrahan
Reviewed By: btrahan
Subscribers: epriestley
Maniphest Tasks: T7199
Differential Revision: https://secure.phabricator.com/D12244
Summary: Ref T7199. This needs some polish and isn't reachable from the UI, but technically has all of the information.
Test Plan:
{F355899}
{F355900}
Reviewers: btrahan
Reviewed By: btrahan
Subscribers: epriestley
Maniphest Tasks: T7199
Differential Revision: https://secure.phabricator.com/D12241
Summary:
Ref T7199. This fully modularizes mail command handling in Maniphest.
I had to add a couple of minor not-totally-solid-feeling tricks to deal with the "create" case, but they feel not-too-bad, and a million times better than what came before.
Test Plan: Used all commands with `receive-test`.
Reviewers: btrahan
Reviewed By: btrahan
Subscribers: epriestley
Maniphest Tasks: T7199
Differential Revision: https://secure.phabricator.com/D12240
Summary: Ref T7199. Convert Differential to modern modular commands.
Test Plan: Used `bin/mail receive-test` to send command and comment mail to Differential.
Reviewers: btrahan
Reviewed By: btrahan
Subscribers: epriestley
Maniphest Tasks: T7199
Differential Revision: https://secure.phabricator.com/D12239
Summary: Ref T7199. Everyone can have a mail command! You can have a mail command! You can have a mail command! Mail commands for everyone!
Test Plan: Used `bin/mail receive-test` to issue commands against files and pastes.
Reviewers: btrahan
Reviewed By: btrahan
Subscribers: epriestley
Maniphest Tasks: T7199
Differential Revision: https://secure.phabricator.com/D12238
Summary: Ref T7199. Half of these aren't even reachable, but make some progress toward reducing the amount of nonsense and garbage in mail handling.
Test Plan: Tested all reachable handlers with `bin/mail receive-test`.
Reviewers: btrahan
Reviewed By: btrahan
Subscribers: epriestley
Maniphest Tasks: T7199
Differential Revision: https://secure.phabricator.com/D12237
Summary:
Ref T7199. Essentially all of the reply handlers now apply transactions to something which implements PhabricatorApplicationTransactionInterface.
We can share code between them by lifting this stuff into a superclass.
First, convert paste. Also rename `PasteMockMailReceiver` to `PasteMailReceiver` (this got mis-copied from Pholio at some point, I think).
Test Plan: Used `bin/mail receive-test` to send comments + `!unsubscribe` to pastes.
Reviewers: btrahan
Reviewed By: btrahan
Subscribers: epriestley
Maniphest Tasks: T7199
Differential Revision: https://secure.phabricator.com/D12236
Summary:
Ref T7689. This gives HandleLists `renderList()` and `renderHandle()` methods, which return views that can perform just-in-time data fetching and generally look and feel like other rendering code, instead of being odd pseudo-functional methods on `Controller`.
Also converts callsites on the Maniphest detail page to use these methods.
Next changes will wipe out more of the callsites.
Test Plan:
- Viewed Maniphest detail page with many relevant handles.
- Created a new subtask.
Reviewers: btrahan
Reviewed By: btrahan
Subscribers: epriestley
Maniphest Tasks: T7689
Differential Revision: https://secure.phabricator.com/D12205
Summary:
Ref T7689, which discusses some of the motivation here. Briefly, these methods are awkward:
- Controller->loadHandles()
- Controller->loadViewerHandles()
- Controller->renderHandlesForPHIDs()
This moves us toward better semantics, less awkwardness, and a more reasonable attack on T7688 which won't double-fetch a bunch of data.
Test Plan:
- Added unit tests.
- Converted one controller to the new stuff.
- Viewed countdown lists, saw handles render.
Reviewers: btrahan
Reviewed By: btrahan
Subscribers: epriestley
Maniphest Tasks: T7689
Differential Revision: https://secure.phabricator.com/D12202
Summary:
Fixes T7629 plus an un filed bug that's breaking creating new threads since we need to add participants EVEN EARLIER than we were doing it now that policy is actually enforced.
Back to the main thrust of this, there is one UI corner case - in the main view if you go from 1:1 to 1:1:1 (i.e. add a 3rd recipient, or Nth in a row) the icon only updates on page reload. I figure this will get sorted out at a later refactor as we make the client better / share more code with durable column.
One other small behavioral oddity is in the main view sometime we start loading with no conpherence. in that case, rather than show some incorrect icon, we show no icon (and "no title") and then things change at load. Seems okay-ish.
Finally, @chad - the CSS is a very work-man-like "use the built in stuff you can specify from PHP" so I'm sure it needs some love.
Test Plan: made all sorts of rooms and threads and liked the icons. noted smooth loading action as i switched around
Reviewers: chad, epriestley
Reviewed By: epriestley
Subscribers: Korvin, chad, epriestley
Maniphest Tasks: T7629
Differential Revision: https://secure.phabricator.com/D12163
Summary:
Ref T6755. Although we do not return response bodies, it is possible to perform crude portscanning if you can execute a DNS rebinding attack (which, for now, remains theoretical).
Limit users to 60 requests / hour to make it less feasible. This would require ~30 years to portscan all ports on a `/32` netblock.
Users who can guess that services may exist can confirm their existence more quickly than this, but if the attacker already had a very small set of candidate services it seems unlikely that portscanning would be of much use in executing the attack.
This protection should eventually be applied to T4190, too (that task also has other considerations).
Test Plan: Set rate limit very low, hit rate limit.
Reviewers: btrahan
Reviewed By: btrahan
Subscribers: epriestley
Maniphest Tasks: T6755
Differential Revision: https://secure.phabricator.com/D12168
Summary: Ref T7584. This hits all the major bullets there. Next step on T7584 is figuring out how it integrates into the full UI and column UI. That said, this is a bit buggy feeling right now since Conpherence as is assumes you are a participant all over the place and rooms make no such assumption. I'll probably this bit up next.
Test Plan:
viewed /conpherence/room/ and saw stuff. viewed the "participant" query as two different users and saw different correct result sets. made a room via the button and it worked. tried to view a room I wasn't a participant in and it failed horribly, which is something to fix in a future diff
created a thread via "send message" on a user profile and it worked
Reviewers: chad, epriestley
Reviewed By: epriestley
Subscribers: Korvin, epriestley
Maniphest Tasks: T7584
Differential Revision: https://secure.phabricator.com/D12113
Summary:
Fixes T7563. Fixes T5201. Reframe this as two separate operations:
- Move before or after a task.
- Move to the beginning or end of a priority.
Then:
- Make all the order queries unambiguous and properly reversible, with an explicit `id` order.
- Just reuse `ManiphestTask` to get results in the correct order.
- Simplify the actual transaction apply logic.
- Detect and recover from cases where tasks have identical or similar subpriorities.
Test Plan:
- Wrote and executed unit tests.
- Dragged and dropped tasks within priorities and between priorities in the main Maniphest view.
- Dragged and dropped tasks within priorities in the workboard view, when ordered by priority.
- Also poked at the "natural" order, but that shouldn't be affected.
Reviewers: btrahan, chad
Reviewed By: chad
Subscribers: chad, epriestley
Maniphest Tasks: T5201, T7563
Differential Revision: https://secure.phabricator.com/D12121
Summary:
Ref T7149. When users give us dumpfiles for import, they will almost inevitably use the `phabricator` namespace. They need to be renamed to use an instance namespace.
We can do this either by:
- importing the data first, then renaming; or
- renaming first, then importing.
This implements the second one, basically `storage renamespace --in dump.sql --from phabricator --to instancename > instance.sql`.
Renaming first is a little hackier since we have to `preg_match()` a SQL dump file, but I think it's better overall:
- With only one database, it lets you dump/import without downtime.
- If you have development stuff in a development environment in the `phabricator` namespace, you don't have to move it aside to do an import.
- No possibility that two people doing an import at the same time on the same box will collide with each other.
- You can do the rename once and then repeat the import process with the renamed dump more easily.
- No tricky stuff with modern Phabricator running against an old dump and the database names not matching up.
None of this is super important, but it just makes large dumps a bit easier to work with, and the dumpfile format is regular enough that this seems unlikely to ever really not work.
Test Plan: Renamespaced a dump, did a `diff -u`, saw all the relevant parts changed (and only those parts changed).
Reviewers: btrahan
Reviewed By: btrahan
Subscribers: epriestley
Maniphest Tasks: T7149
Differential Revision: https://secure.phabricator.com/D12105
Summary: Ref T7149. Return a real iterator from the Chunk engine, which processes chunks sequentially.
Test Plan:
This is a bit hard to read, but shows the underlying chunks being accessed one at a time and only some being accessed when requesting a range of a file:
```
$ ./bin/files cat F878 --trace --begin 100 --end 256
...
>>> [10] <query> SELECT * FROM `file_storageblob` WHERE `id` = 85
<<< [10] <query> 240 us
better software.
Phabricat>>> [11] <query> SELECT * FROM `file_storageblob` WHERE `id` = 84
<<< [11] <query> 205 us
or includes applications for:
>>> [12] <query> SELECT * FROM `file_storageblob` WHERE `id` = 83
<<< [12] <query> 226 us
- reviewing and auditing source>>> [13] <query> SELECT * FROM `file_storageblob` WHERE `id` = 82
<<< [13] <query> 203 us
code;
- hosting and browsing >>> [14] <query> SELECT * FROM `file_storageblob` WHERE `id` = 81
<<< [14] <query> 231 us
repositories;
- tracking bugs;
```
Reviewers: btrahan
Reviewed By: btrahan
Subscribers: joshuaspence, epriestley
Maniphest Tasks: T7149
Differential Revision: https://secure.phabricator.com/D12073
Summary:
Ref T7149. This makes debugging some of this stuff a bit easier by removing the HTTP part in the middle.
Particularly, I anticipate having this stream data chunk-by-chunk in the near future.
Test Plan: Ran `files cat F23`, got output.
Reviewers: btrahan
Reviewed By: btrahan
Subscribers: joshuaspence, epriestley
Maniphest Tasks: T7149
Differential Revision: https://secure.phabricator.com/D12062
Summary:
Ref T7149. This isn't complete and isn't active yet, but does basically work. I'll shore it up in the next few diffs.
The new workflow goes like this:
> Client, file.allocate(): I'd like to upload a file with length L, metadata M, and hash H.
Then the server returns `upload` (a boolean) and `filePHID` (a PHID). These mean:
| upload | filePHID | means |
|---|---|---|
| false | false | Server can't accept file.
| false | true | File data already known, file created from hash.
| true | false | Just upload normally.
| true | true | Query chunks to start or resume a chunked upload.
All but the last case are uninteresting and work like exising uploads with `file.uploadhash` (which we can eventually deprecate).
In the last case:
> Client, file.querychunks(): Give me a list of chunks that I should upload.
This returns all the chunks for the file. Chunks have a start byte, an end byte, and a "complete" flag to indicate that the server already has the data.
Then, the client fills in chunks by sending them:
> Client, file.uploadchunk(): Here is the data for one chunk.
This stuff doesn't work yet or has some caveats:
- I haven't tested resume much.
- Files need an "isPartial()" flag for partial uploads, and the UI needs to respect it.
- The JS client needs to become chunk-aware.
- Chunk size is set crazy low to make testing easier.
- Some debugging flags that I'll remove soon-ish.
- Downloading works, but still streams the whole file into memory.
- This storage engine is disabled by default (hardcoded as a unit test engine) because it's still sketchy.
- Need some code to remove the "isParital" flag when the last chunk is uploaded.
- Maybe do checksumming on chunks.
Test Plan:
- Hacked up `arc upload` (see next diff) to be chunk-aware and uploaded a readme in 18 32-byte chunks. Then downloaded it. Got the same file back that I uploaded.
- File UI now shows some basic chunk info for chunked files:
{F336434}
Reviewers: btrahan
Reviewed By: btrahan
Subscribers: joshuaspence, epriestley
Maniphest Tasks: T7149
Differential Revision: https://secure.phabricator.com/D12060
Summary:
Fixes T5843. File storage engines use a very old "selector" mechanism which makes them difficult to extend.
This mechanism predates widespread use of `PhutilSymbolLoader` to discover available implementations at runtime. Runtime discovery has generally proven more flexible and easier to use than explicit selection (although it sometimes needs more UI to support it in cases where order or enabled/disabled flags can not be directly determined).
Use a modern runtime discovery mechanism instead of an explicit selector. This might break any installs which subclassed the `Selector`, but I believe almost no such installs exist, and they'll receive a meaningful exception upon upgrading (any custom engines will no longer implement all of the required methods).
Looking forward, this modernizes infrastructure to prepare for new "virtual" chunked-storage engines, with the eventual goal of supporting very large file uploads and data import into the Phacility cluster.
This uses D12051 to add UI to make it easier to understand the state of storage engines.
Test Plan:
Used new UI panel to assess storage engines:
{F336270}
- Uploaded a small file, saw it go to MySQL engine.
- Uploaded a larger file, saw it go to S3 engine.
Reviewers: btrahan
Reviewed By: btrahan
Subscribers: epriestley
Maniphest Tasks: T5843
Differential Revision: https://secure.phabricator.com/D12053
