Summary:
Ref T4631. Ref T10939. I don't have any good solutions here; this is perhaps the least-bad one.
- This prompt is misleading/confusing in the presence of Herald/Owners.
- This prompt is likely of very little value for experienced reviewers.
- When it works, this prompt may be of some value for new reviewers, but getting it wrong is probably more confusing than getting it right is helpful, and there is a more accurate version of the warning in the web UI that new users are likely to see.
- In the long run, this code should not live in the client.
Test Plan: Created this revision without specifying reviewers, probably didn't get prompted.
Reviewers: chad
Reviewed By: chad
Maniphest Tasks: T4631, T10939
Differential Revision: https://secure.phabricator.com/D16139
Summary: See D15828 - arc is reporting file size as `0` for unexisting files - make it stop.
Test Plan: `arc diff` with empty, deleted, added files - see size reported as `null` when appropriate.
Reviewers: epriestley, #blessed_reviewers
Reviewed By: epriestley, #blessed_reviewers
Subscribers: chad, Korvin
Differential Revision: https://secure.phabricator.com/D16059
Summary:
It is common practice in Wikimedia's projects to amend a contributor's
change without taking over authorship of the change. We found that
the only enforcement of commandeering before amending is in arcanist,
not validated server-side. While it would be fairly straightforward to
maintain this as a patch to arcanist, I thought I would see if upstream
is willing to support making this optional.
With this change, amending without commandeering is enabled by a flag in
`.arcconfig` and it defaults to the old behavior.
For background see [wmf T121751](https://phabricator.wikimedia.org/T121751)
Test Plan:
* ran `arc patch D146` to locally apply a revision that I did not author,
* made a trivial change and amended the commit.
* ran `arc diff --update D146 HEAD^` to send the update to differential
* Saw that https://phabricator.wikimedia.org/D146 updated as it should.
Reviewers: epriestley, #blessed_reviewers
Reviewed By: epriestley, #blessed_reviewers
Subscribers: greggrossmeier, aklapper, Luke081515.2, Korvin, dereckson
Maniphest Tasks: T10584
Differential Revision: https://secure.phabricator.com/D15468
Summary:
Ref T10093. Right now, Phabricator kind of guesses that `arc` probably pushed stuff to the staging area.
This can cause confusing/misleading errors later, if it didn't actually push.
Instead, tell Phabricator that we pushed, so we can raise more tailored messages in the web UI (e.g., make "Land Revision" say "this wasn't pushed to the staging area" instead of "whoops, error!!~").
Test Plan:
Ran `arc diff` a few times, then looked in the database for properties.
{F1161655}
Reviewers: chad
Reviewed By: chad
Maniphest Tasks: T10093
Differential Revision: https://secure.phabricator.com/D15426
Summary:
Fixes T10509. Pushing changes to staging can be inefficient. What happens, roughly, is:
- Master is at commit "W" -- "W" is the most recent published commit in the main repository.
- The local working copy has one change on top of that, "X", so its history is commits "A, B, C, D, E, F, ..., U, V, W, X".
- The remote has some other previous changes that I or other users have made, maybe like "A, B, C, ..., S, T, U, Y" and "A, B, C, ..., T, U, V, Z", from previous pushes to staging areas.
- "X", "Y" and "Z" will never actually make it to master, because they'll be squash-merged/amended by `arc land`.
So the local says "I want to push 'X'", and the remote says "I know about 'Y' and 'Z', are those in the history of 'W'? You only need to send me new stuff if they are".
But they aren't, so the local says "nope, so here's the whole history for you". This is slow and sends a ton of data that the remote already has over the network.
In theory, Git could use a slightly different algorithm to tell the local about more commits, but this is hard, rarely useful, and not the kind of thing I'd be excited about changing if I was the Git upstream.
Instead, when pushing "X", also push "W", to trick Git into telling future clients about it.
Now, the remote should say "I know about 'W', 'Y' and 'Z'", and the local will say "oh, great, 'W' is in history, here's just the changes since then".
Also, fail `arc diff` if the push to staging fails, and tell users to use `--skip-staging`. This code has been in production for a while and doesn't seem to have any issues, and a failed push to staging prevents builds, lands, etc.
Test Plan:
- Ran `arc diff`, saw two changes push.
- Ran `arc diff --base arc:empty`, saw only one change push.
- Ran `arc diff` with an intentionally broken staging area, saw an error.
Reviewers: chad
Reviewed By: chad
Maniphest Tasks: T10509
Differential Revision: https://secure.phabricator.com/D15424
Summary:
Currently, `git show | arc diff --raw` and similar doesn't work because we try to figure out what the "Branch: feature (branched from whatever)" value is, which doesn't make sense.
```
$ git show | arc diff --raw --trace
ARGV '/Users/epriestley/dev/core/lib/arcanist/bin/../scripts/arcanist.php' 'diff' '--raw' '--trace'
LOAD Loaded "phutil" from "/Users/epriestley/dev/core/lib/libphutil/src".
LOAD Loaded "arcanist" from "/Users/epriestley/dev/core/lib/arcanist/src".
Config: Reading user configuration file "/Users/epriestley/.arcrc"...
Config: Did not find system configuration at "/etc/arcconfig".
Working Copy: Reading .arcconfig from "/Users/epriestley/dev/core/lib/arcanist/.arcconfig".
Working Copy: Path "/Users/epriestley/dev/core/lib/arcanist" is part of `git` working copy "/Users/epriestley/dev/core/lib/arcanist".
Working Copy: Project root is at "/Users/epriestley/dev/core/lib/arcanist".
Config: Reading local configuration file "/Users/epriestley/dev/core/lib/arcanist/.git/arc/config"...
Loading phutil library from '/Users/epriestley/dev/core/lib/arcanist/src'...
>>> [0] <conduit> conduit.connect() <bytes = 489>
>>> [1] <http> https://secure.phabricator.com/api/conduit.connect
<<< [1] <http> 211,217 us
<<< [0] <conduit> 212,001 us
>>> [2] <event> diff.didCollectChanges <listeners = 0>
<<< [2] <event> 140 us
>>> [3] <event> diff.didBuildMessage <listeners = 0>
<<< [3] <event> 46 us
Reading diff from stdin...
>>> [4] <conduit> differential.creatediff() <bytes = 10,542>
>>> [5] <http> https://secure.phabricator.com/api/differential.creatediff
<<< [5] <http> 120,215 us
<<< [4] <conduit> 120,411 us
>>> [6] <event> diff.wasCreated <listeners = 0>
<<< [6] <event> 41 us
SKIP STAGING Raw changes can not be pushed to a staging area.
>>> [7] <conduit> harbormaster.queryautotargets() <bytes = 290>
>>> [8] <http> https://secure.phabricator.com/api/harbormaster.queryautotargets
<<< [8] <http> 217,717 us
<<< [7] <conduit> 217,944 us
>>> [9] <conduit> harbormaster.sendmessage() <bytes = 274>
>>> [10] <http> https://secure.phabricator.com/api/harbormaster.sendmessage
>>> [11] <conduit> harbormaster.sendmessage() <bytes = 274>
>>> [12] <http> https://secure.phabricator.com/api/harbormaster.sendmessage
<<< [10] <http> 123,821 us
<<< [9] <conduit> 134,329 us
<<< [12] <http> 227,580 us
<<< [11] <conduit> 227,787 us
[2016-01-05 10:08:58] EXCEPTION: (Exception) This workflow ('ArcanistDiffWorkflow') requires a Repository API, override requiresRepositoryAPI() to return true. at [<arcanist>/src/workflow/ArcanistWorkflow.php:804]
arcanist(head=master, ref.master=b3e68c9f1793), phutil(head=stable, ref.master=adb8a9c074ba, ref.stable=7b8d38cd2d4e)
#0 ArcanistWorkflow::getRepositoryAPI() called at [<arcanist>/src/workflow/ArcanistDiffWorkflow.php:2421]
#1 ArcanistDiffWorkflow::getDiffOntoTargets() called at [<arcanist>/src/workflow/ArcanistDiffWorkflow.php:2411]
#2 ArcanistDiffWorkflow::updateOntoDiffProperty() called at [<arcanist>/src/workflow/ArcanistDiffWorkflow.php:534]
#3 ArcanistDiffWorkflow::run() called at [<arcanist>/scripts/arcanist.php:392]
```
Test Plan: Ran `arc diff --raw` in `phabricator/`.
Reviewers: chad
Reviewed By: chad
Differential Revision: https://secure.phabricator.com/D14946
Summary:
Ref T9952. Ref T3462. My primary goal is to improve prefilling of the "Onto Branch:" field in the "Land Revision" dialog.
When uploading a diff with `arc diff`, add a property with some information about which branch to target. In particular:
- If the local branch tracks an upstream branch (or tracks something which tracks something which tracks the upstream), target that.
- If not, but "arc.land.onto.default" is set, target that.
This doesn't try to guess in other cases, since they're more involved. I'll add some context about this in T3462.
I don't //love// using "diff properties" for this, but it doesn't make cleaning them up any harder since we already use it for other stuff which isn't going away (lint/unit excuses).
Test Plan:
- Added some `var_dump()` and used `arc diff --only` to generate diffs.
- Saw upstream tracking and config-based rules generate reasonable values and submit them.
Reviewers: chad
Reviewed By: chad
Maniphest Tasks: T3462, T9952
Differential Revision: https://secure.phabricator.com/D14736
Summary: Ref T5821. Basic idea here is that Harbormaster can run `arc unit --everything --target ...` to get a build target updated.
Test Plan: Ran `arc unit --target ...`, saw web UI update with test results.
Reviewers: chad
Reviewed By: chad
Maniphest Tasks: T5821
Differential Revision: https://secure.phabricator.com/D14190
Summary:
7e2df9a attempted to pht() some strings; unfortunately, it assumed
that some things that were calls to phutil_console_wrap() were
actually calls to phutil_console_format(). This produces errors of
the form:
[2015-07-17 21:17:28] ERROR 2: str_repeat() expects parameter 2 to be long, string given at [/usr/local/libphutil/src/console/format.php:162]
#0 str_repeat(string, string) called at [<phutil>/src/console/format.php:162]
#1 phutil_console_wrap(string, string, string) called at [<arcanist>/scripts/arcanist.php:620]
#2 arcanist_load_libraries(array, boolean, string, ArcanistWorkingCopyIdentity) called at [<arcanist>/scripts/arcanist.php:154]
%s: %s
Provide an additional call to phutil_console_format() when necessary,
or simply append the relevant characters if possible.
Test Plan: Caused a library load error
Reviewers: #blessed_reviewers, epriestley
Subscribers: Korvin
Differential Revision: https://secure.phabricator.com/D14053
Summary:
The `--no-verify` flag was not added until git 1.8.2. This
flag is used to avoid running local pre-push hooks. This is likely a
rare configuration and is safe to omit the flag on older versions.
Users with local pre-push hooks **and** older git version may need to
adjust their workfow.
fixes T9310
Test Plan:
* Ran `arc diff` with my real git 1.7.10.4 and succeeded with `STAGING
PUSHED`.
* Edited `getGitVersion` to be > 1.8.2 and pushed again. Got
`STAGING FAILED` because `error: unknown option`.
Reviewers: #blessed_reviewers, epriestley
Reviewed By: #blessed_reviewers, epriestley
Subscribers: joshuaspence, epriestley
Maniphest Tasks: T9310
Differential Revision: https://secure.phabricator.com/D14033
Summary: Ref T9134. It looks like this functionality was removed in D13848. Depends on D13869.
Test Plan: Ran `arc diff`, `arc lint` and `arc unit`.
Reviewers: #blessed_reviewers, epriestley
Reviewed By: #blessed_reviewers, epriestley
Subscribers: Korvin
Maniphest Tasks: T9134
Differential Revision: https://secure.phabricator.com/D13868
Summary: This host is no longer in service.
Test Plan: `git grep -i www.phabricator.com`
Reviewers: chad
Reviewed By: chad
Subscribers: epriestley
Differential Revision: https://secure.phabricator.com/D13586
Summary:
Ref T8670. Ref T8657.
- When lint only has advice (no warnings/errors), consider it a "passing" build.
- Be a little louder about `sendmessage` calls failing because this stuff is not totally broken and that makes T8670-related things easier to catch/fix.
Test Plan: Created this revision.
Reviewers: btrahan
Reviewed By: btrahan
Subscribers: epriestley
Maniphest Tasks: T8657, T8670
Differential Revision: https://secure.phabricator.com/D13436
Summary:
Ref T8095. Before uploading lint/unit results in the old way, try to ship them to autotargets.
If we can query and upload data to autotargets, do so, and then skip the older style uploads.
Test Plan: Used `arc diff` to ship data up via Harbormaster.
Reviewers: btrahan
Reviewed By: btrahan
Subscribers: epriestley
Maniphest Tasks: T8095
Differential Revision: https://secure.phabricator.com/D13381
Summary: Ref T8238. If a staging area is configured for a repository (see D13019), push a copy of changes to it after creating a diff.
Test Plan: Ran `arc diff` with various options, saw applicable changes get pushed to staging.
Reviewers: btrahan
Reviewed By: btrahan
Subscribers: cburroughs, epriestley
Maniphest Tasks: T8238
Differential Revision: https://secure.phabricator.com/D13020
Summary: Fixes T8259. Depends on D13016. Use modern logic to support large file uploads.
Test Plan:
- Diffed with some images, saw them show up in the diff.
- Diffed with a 12MB binary, saw it upload in chunks.
Reviewers: btrahan
Reviewed By: btrahan
Subscribers: epriestley
Maniphest Tasks: T8259
Differential Revision: https://secure.phabricator.com/D13017
Summary:
Fixes T8314. Change the phutil_console_wrap() call to only have a single
string parameter.
Test Plan:
Ran `arc diff` added text into the title, summary and test plan fields,
but did not specify any reviewers. When prompted to continue, clicked 'No' and
saw the '(Message saved to commit message.)' string.
Reviewers: #blessed_reviewers, epriestley
Reviewed By: #blessed_reviewers, epriestley
Subscribers: epriestley
Maniphest Tasks: T8314
Differential Revision: https://secure.phabricator.com/D13015
Summary: I found a few strings that I had missed, using a mostly-broken-but-somewhat-okay custom linter ruler (https://secure.phabricator.com/differential/diff/30988/).
Test Plan: Intense eyeballing.
Reviewers: epriestley, #blessed_reviewers
Reviewed By: epriestley, #blessed_reviewers
Subscribers: aurelijus, Korvin, epriestley
Differential Revision: https://secure.phabricator.com/D12888
Summary: Remove the `ArcanistUncommittedChangesException` class which is unused after D11843.
Test Plan: `grep`
Reviewers: #blessed_reviewers, epriestley
Reviewed By: #blessed_reviewers, epriestley
Subscribers: Korvin, epriestley
Differential Revision: https://secure.phabricator.com/D12515
Summary: Although these don't do any harm, they show up in my editor which is configured to highlight trailing whitespace.
Test Plan: Submitted this diff... saw no trailing whitespace.
Reviewers: epriestley, #blessed_reviewers
Reviewed By: epriestley, #blessed_reviewers
Subscribers: Korvin, epriestley
Differential Revision: https://secure.phabricator.com/D12369
Summary:
Fixes T7521. This separates things into two prompts and doesn't try to automatically add untracked files.
This also fixes T7512, or at least I can't reproduce it after this change.
Test Plan:
- Ran `arc diff` in a `git` directory with untracked files.
- Ran `arc diff` in a `svn` directory with untracked files.
- Ran `arc diff` in a `hg` directory with untracked files.
Reviewers: btrahan
Reviewed By: btrahan
Subscribers: epriestley
Maniphest Tasks: T7512, T7521
Differential Revision: https://secure.phabricator.com/D12258
Summary:
Fixes T7344.
Currently, we use `phutil_console_prompt()`, which isn't a very good editor. Use the real $EDITOR instead.
100% of the logic here was also a gigantic mess. Clean it up.
Test Plan: Will update in a second with console output from this run.
Reviewers: btrahan
Reviewed By: btrahan
Subscribers: epriestley
Maniphest Tasks: T7344
Differential Revision: https://secure.phabricator.com/D11843
Summary: Fixes T7112. Nothing too difficult here.
Test Plan:
meta - submitting this with the new arcanist code
used conduit API to verify the difference between getdiff (just the latest diff) and querydiffs (all diffs that match, with the latest diff first in the set)
Reviewers: epriestley
Reviewed By: epriestley
Subscribers: Korvin, epriestley
Maniphest Tasks: T7112
Differential Revision: https://secure.phabricator.com/D11665
Summary: D7952 added namespaces to `ArcanistUnitTestResult` but these are not exported and thus don't get sent from client to server.
Test Plan: Uploaded a diff and inspected the contents of the `phabricator_differential.differential_diffproperty` table.
Reviewers: epriestley, #blessed_reviewers
Reviewed By: epriestley, #blessed_reviewers
Subscribers: Korvin, epriestley
Differential Revision: https://secure.phabricator.com/D11208
Summary: The `file.uploadhash` method was added a long time ago (in D4899). It should be safe to assume that this method exists on most installs.
Test Plan: N/A
Reviewers: epriestley, #blessed_reviewers
Reviewed By: epriestley, #blessed_reviewers
Subscribers: epriestley
Differential Revision: https://secure.phabricator.com/D11118
Summary: the call to setHeadCommit() was accidentally placed in a `if ($background) {}` block, which was removed in 54bea94. This adds the removed call.
Test Plan: used --head, worked as expected
Reviewers: epriestley, #blessed_reviewers
Reviewed By: epriestley, #blessed_reviewers
Subscribers: epriestley, Korvin
Differential Revision: https://secure.phabricator.com/D10447
Summary:
Ref T4281. A long time ago, we added a `--background` flag to let `arc lint` and `arc unit` run while you're typing a commit message, in some situations.
This code is only moderately beneficial and is way too complicated. Particularly, it has a long history of causing hangs (T4281, T2463), doesn't work on Windows, and is impossible to debug.
It's also running into a serious PHP bug with EAGAIN/EPIPE being indistinguishable that I haven't been able to find a reasonable workaround for in ~3-4 hours of trying.
All the pathways forward that I can see make this already-complex system more complex.
The major reason that this stuff is so complex is that the subprocess may need to prompt the user (notably, to apply patches from lint).
Instead, I'm going to simplify how `arc diff` interacts with `arc lint` and `arc unit`, so we can just fire-and-forget a background process, let it do as much work as it can without needing user input, and then pick up wherever it left off. This will be slightly less cool/magical, but it won't hang bizarrely and I will be able to debug it.
For now, simply remove the `--background` flag and behavior so `arc` works for everyone.
Test Plan: Ran `arc diff` to create this diff.
Reviewers: btrahan
Reviewed By: btrahan
Subscribers: epriestley
Maniphest Tasks: T4281
Differential Revision: https://secure.phabricator.com/D10198
Summary: Ref T5781. Add a flag to optionally open a web browser after creating a diff or revision.
Test Plan: Created //this revision// with `arc diff --browse` // !!! //
Reviewers: csilvers, btrahan
Reviewed By: btrahan
Subscribers: epriestley, spicyj
Maniphest Tasks: T5781
Differential Revision: https://secure.phabricator.com/D10141
Summary:
Ref T5655. It is superfluous to include "base" in the name of an abstract base class. Furthermore, it is not done consistently within the code base.
In order to retain compatibility with external code, I have kept the `ArcanistBaseWorkflow` class (which trivially extends from `ArcanistWorkflow`), but it is now deprecated and should output a warning message. Similarly for `ArcanistBaseUnitTestEngine`.
Test Plan: Created a workflow which extends from `ArcanistBaseWorkflow`. Executed the workflow and saw a deprecation warning.
Reviewers: #blessed_reviewers, epriestley
Reviewed By: #blessed_reviewers, epriestley
Subscribers: epriestley, Korvin, aurelijus
Maniphest Tasks: T5655
Differential Revision: https://secure.phabricator.com/D9983
Summary: I'm pretty sure that `@group` annotations are useless now... I believe that they were originally used by Diviner?
Test Plan: Eye-balled it.
Reviewers: epriestley, #blessed_reviewers
Reviewed By: epriestley, #blessed_reviewers
Subscribers: epriestley, Korvin, aurelijus
Differential Revision: https://secure.phabricator.com/D9855
Summary:
Introducing `--head` caused us to run `git diff base..head` explicitly.
However, we can now hit this workflow:
- We resolve `HEAD` as commit `aaaa1`.
- This is cached.
- We notice dirty working copy changes and prompt the user to amend them to HEAD.
- The user accepts the amend.
- We amend, creating commit `bbbb2`.
- We dirty the commit range and reload the working copy. This //does not// dirty the cache of HEAD.
- We run `git diff`, but it uses the old cached HEAD: `git diff base..aaaa1`.
- This works fine (`aaaa1` still exists, it's just not on any branch) but produces the wrong diff (without amended changes).
To resolve this, implement the "dirty the cache when the range reloads" hook.
Also never try to amend if the user provides `--head`.
Test Plan:
Ran `arc diff --only --trace` in a working copy with a new commit and some uncommitted changes.
- Prior to this change, saw a `git diff base..aaaa1` command and the wrong diff.
- After this change, saw a `git diff base..bbbb2` command and the correct diff.
Reviewers: chad, csilvers, talshiri
Reviewed By: talshiri
Subscribers: epriestley, spicyj
Differential Revision: https://secure.phabricator.com/D9506
Summary:
This adds support for passing range of commits for arc diff. This is useful when you want to submit code reviews for past commits without mucking around with the working copy.
This will probably require changes :)
Test Plan: Tested locally, but totally need to add tests for this
Reviewers: epriestley, #blessed_reviewers
Reviewed By: epriestley, #blessed_reviewers
Subscribers: epriestley, Korvin
Differential Revision: https://secure.phabricator.com/D9369
Summary: Ran `arc lint --apply-patches --everything` over rARC, mainly to change double quotes to single quotes where appropriate. These changes also validate that the `ArcanistXHPASTLinter::LINT_DOUBLE_QUOTE` rule is working as expected.
Test Plan: Eyeballed //most// of the diff.
Reviewers: epriestley, #blessed_reviewers
Reviewed By: epriestley, #blessed_reviewers
Subscribers: epriestley, Korvin, aurelijus
Differential Revision: https://secure.phabricator.com/D9269
Summary: Fixes T5082. We try to access the repository API in some cases when we don't have one.
Test Plan:
- Made revisions with "arc diff --raw-command --create".
- Made this revision, without "--raw-command".
Reviewers: btrahan
Reviewed By: btrahan
Subscribers: epriestley
Maniphest Tasks: T5082
Differential Revision: https://secure.phabricator.com/D9165
Summary: Fixes T5071. If you run `arc diff --raw` from some arbitrary, non-repository directory we incorrectly try to read information out of the working copy. Even if this information is available, `arc diff --raw` should not assume it's accurate (there's no guarantee the diff comes from the working copy).
Test Plan: Ran `arc diff --raw` in an arbitrary directory.
Reviewers: btrahan
Reviewed By: btrahan
Subscribers: epriestley
Maniphest Tasks: T5071
Differential Revision: https://secure.phabricator.com/D9142
Summary: Fixes T4649. The issue in that task is caused because we're submitting a block of text including comments. We've probably been doing this for a long time, but maybe were more liberal in parsing before. Instead, strip them.
Test Plan: Ran `arc diff --verbatim` and got "Dxxx" prefilled correctly.
Reviewers: btrahan
Reviewed By: btrahan
Subscribers: epriestley
Maniphest Tasks: T4649
Differential Revision: https://secure.phabricator.com/D8658
Summary:
Fixes T4063. The `git format-patch` command produces a special header
and footer which we need to detect, strip, and parse.
Test Plan:
- Added and ran unit tests.
- Submitted a diff with `git format-patch HEAD^ --stdout | arc diff --raw`.
Reviewers: btrahan
Reviewed By: btrahan
Subscribers: epriestley
Maniphest Tasks: T4063
Differential Revision: https://secure.phabricator.com/D8547
Summary:
Ref T4343. Continues the process of reducing the prominence of Arcanist Projects. Primarily:
- Query Phabricator to identify the working copy based on explicit configuration, or guess based on heuristics.
- Enhance `arc which` to explain the process to the user.
- The `project_id` key is no longer required in `.arcconfig`.
Minor/cleanup changes:
- Rename `project_id` to `project.name` (consistency, clarity).
- Rename `conduit_uri` to `phabricator.uri` (consistency, clairty).
- These both need documentation updates.
- Add `repository.callsign` to explicitly bind to a repository.
- Updated `.arcconfig` for the new values.
- Fix a unit test which broke a while ago when we fixed a rare definition of "unstaged".
- Make `getRepositoryUUID()` generic so we can get rid of one `instanceof`.
Test Plan:
- Ran `arc which`.
- Ran `arc diff`.
- This doesn't really change anything, so the only real risk is version compatibility breaks. This //does// introduce such a break, but the window is very narrow: if you upgrade `arc` after this commit, and try to diff against a Phabricator which was updated after yesterday (D8068) but before D8072 lands, the lookup will work so we'll add `repositoryPHID` to the `differential.creatediff` call, but it won't exist in Phabricator yet. This window is so narrow that I'm not going to try to fix it, as I'd guess there is a significant chance that no users will be affected. I don't see a clever way to fix it that doesn't involve a lot of work, either.
Reviewers: btrahan
Reviewed By: btrahan
CC: aran
Maniphest Tasks: T4343
Differential Revision: https://secure.phabricator.com/D8073
