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2061 commits

Author SHA1 Message Date
epriestley
9e72e4ed1d Bring "pro" browse queries from modern hardpoint code
Summary: Ref T11968. Merge the modern hardpoint queries and refs for the "browse" workflow as "pro" variations.

Test Plan: Ran `arc inspect browse(...)` for objects, paths, commits, and revisions.

Maniphest Tasks: T11968

Differential Revision: https://secure.phabricator.com/D21080
2020-04-10 08:05:24 -07:00
epriestley
8bb81217d5 Bring a "pro" WorkingCopyState ref to "master"
Summary:
Ref T11968. Continue bringing modern yield-based hardpoint code into "master" in the parallel "Pro" classtree.

Adds "working-copy(commit-hash)" as an inspectable ref.

Test Plan: Inspected working copy refs, saw them resolve revisions by commit hash and commit message.

Maniphest Tasks: T11968

Differential Revision: https://secure.phabricator.com/D21079
2020-04-10 06:16:37 -07:00
epriestley
adea2550f5 Introduce "arc inspect" and some of the new ref/hardpoint classes
Summary:
Ref T11968. Inches toward the new ref/hardpoint code by introducing the modern refs as "RefPro" objects and supporting an "arc inspect <object>" to load objects and hardpoints.

This doesn't impact any existing runtime behavior.

Test Plan: Ran "arc inspect [--all] commit(...)", got hardpoint queries and yield-based data fetching.

Maniphest Tasks: T11968

Differential Revision: https://secure.phabricator.com/D21078
2020-04-10 05:01:25 -07:00
epriestley
92b29f53f3 Rename "getWorkingCopy()" to "getWorkingCopyIdentity()" in Arcanist
Summary:
Depends on D21074. Ref T13490. Ref T11968. Before toolsets, Arcanist has a "WorkingCopyIdentity" object. After toolsets, it has a "WorkingCopy" object.

Most workflows don't access either one, so make a slightly-breaking API change to simplify the transition.

  - "getWorkingCopy()" now returns a modern object (a "WorkingCopy").
  - "getWorkingCopyIdentity()" now returns an older object (a "WorkingCopyIdentity").

This isn't backward-compatible, but out-of-date code should get an explicit failure with clear resolution steps.

Test Plan: Ran "arc lint", "arc branch", and a few other commands. Grepped for "getWorkingCopy()".

Maniphest Tasks: T13490, T11968

Differential Revision: https://secure.phabricator.com/D21075
2020-04-10 04:24:29 -07:00
epriestley
391c164313 Trivially update "arc branch/feature" and "arc browse" for Toolsets
Summary:
Ref T11968. Ref T13490. These are the workflows which currently use the intermediate-level hardpoint code (which made hardpoints formal, but didn't do the yield stuff).

Move toward updating them by doing some basic bookkeeping, with a few compatibility adjustments to the parent Workflow class.

Test Plan: Ran "arc branch" and "arc browse" with various arguments.

Maniphest Tasks: T13490, T11968

Differential Revision: https://secure.phabricator.com/D21074
2020-04-10 04:23:03 -07:00
epriestley
f56c6bde2b Revert "Compress requests from the Conduit client to Phabricator"
Summary:
This reverts commit 7e25288f49. See T13507 for discussion, shortly.

This needs to be switched to capability detection because some server configurations can not actually accept these requests.

Test Plan: Straight revert.

Differential Revision: https://secure.phabricator.com/D21076
2020-04-09 12:25:18 -07:00
epriestley
7e25288f49 Compress requests from the Conduit client to Phabricator
Summary: Ref T13507. Enable compression in the body of Conduit requests if we have client support for it; we expect the server should always support it.

Test Plan: Created this revision, ran random "arc" commands that use Conduit. Added debugging code, saw payload size drop.

Maniphest Tasks: T13507

Differential Revision: https://secure.phabricator.com/D21073
2020-04-08 09:24:54 -07:00
epriestley
deb72c37db Remove onboard future bulk-resolution from ConduitEngine
Summary:
Depends on D21071. Ref T11968. Currently, "ConduitEngine" tries to lightly parallelize futures. This was a compromise when the initial "hardpoint" change didn't plan to pursue real request paralleization.

Now that the newer hardpoint change does, we don't need onboard resolution in ConduitEngine. Throw it away.

When the engine is supposed to resolve a future, it now just resolves that future on its own. This should be functionally identical to the previous behavior, except that it may be slower.

(In practice, because HTTP futures are backed by an internal cURL request pool, this proably has little effect anywhere. Moving to modern hardpoints will make performance no worse than it was prior to this change, in any case.)

Test Plan: Ran various modern "arc" commands.

Maniphest Tasks: T11968

Differential Revision: https://secure.phabricator.com/D21072
2020-04-08 09:24:37 -07:00
epriestley
85141c4d90 Add new "Hardpoint" classes to support request parallelization
Summary:
Depends on D21070. Ref T11968. Adds "yield"-aware query classes for parallelizing service calls.

These will replace the similar (but not yield-aware) "Hardpoint" classes introduced previously. This is an API change but most of the old classes still exist and still do the same thing, just with more "yield" statements.

This just adds a bunch of new code with no callers and no API updates.

Test Plan: See future changes.

Maniphest Tasks: T11968

Differential Revision: https://secure.phabricator.com/D21071
2020-04-08 09:23:50 -07:00
epriestley
0b3cd39230 Update the "WorkingCopy" API and create a fallback "Filesystem" working copy
Summary:
Ref T11968.

  - Allow "WorkingCopy" objects to maintain an API object and update callers ("get...()" instead of "new...()").
  - Always generate a WorkingCopy object and a RepositoryAPI object.

Currently, code has to look like this:

```
$working_copy = ...
if ($working_copy) {
  $repository_api = ...
  if ($repository_api [instanceof ... ]) {
```

This is clunky. There's also no reason some "arc" commands can't run outside a VCS working directory without special-casing how they interact with the filesystem.

Conceptually, model the filesystem as a trivial VCS (which stores exactly one commit, always amends onto it, and discards history). Provide a trivial WorkingCopy and API for it.

(This change isn't terribly interesting on its own, but chips away at landing the new Hardpoint infrastructure.)

Test Plan: Ran `arc version`, `arc upgrade`.

Maniphest Tasks: T11968

Differential Revision: https://secure.phabricator.com/D21070
2020-04-08 09:22:43 -07:00
epriestley
a1ee2ab931 Fix improper XHPAST parsing of namespace grammar like "use x as private;"
Summary:
Depends on D21067. Ref T13492. Converting unit tests to be readable exposed this error in the grammar.

Normally, "grammar_rule" rules emit a standalone Node. In this case, the bottom-level grammar rule is a collection of trivial rules and the callers configure the Node. Wrap the bottom-level rule in a configuration rule so the node is configured correctly and consistently, in exactly one place.

Test Plan: Ran unit tests.

Maniphest Tasks: T13492

Differential Revision: https://secure.phabricator.com/D21068
2020-04-07 14:35:42 -07:00
epriestley
e03431def8 Fix XHPAST parsing of variadic calls
Summary:
Depends on D21066. Ref T13492. The switch of unit test data to stable/readable output exposed this bug in parsing of variadic calls: some nodes are not given types properly.

Fix the parser and update the test.

Test Plan: Ran the test, which now works.

Maniphest Tasks: T13492

Differential Revision: https://secure.phabricator.com/D21067
2020-04-07 14:33:37 -07:00
epriestley
a689dee228 Update XHPAST "expect" test blocks to the new stable, human-readable format
Summary:
Depends on D21065. Ref T13492. Swap existing "expect" blocks from unstable, unreadable JSON to readable, stable trees.

(There are two "INVALID TYPE" outputs which this update effectively detects and which future changes correct.)

Test Plan: Ran "arc unit --everything", got a clean build.

Maniphest Tasks: T13492

Differential Revision: https://secure.phabricator.com/D21066
2020-04-07 14:32:48 -07:00
epriestley
8a7ce97b51 Make XHPAST unit test "expect" blocks stable and human-readable
Summary:
Depends on D21064. Ref T13492. Earlier, see D17819. This is essentially the same change, although I inlined the token stream into the node list.

This intentionally breaks most tests since it just has the new "expect" generator; the next change will fix them by swapping the test bodies.

Test Plan: Ran "arc unit --everything" after the next change (which fixes all the tests), got a clean build. This change on its own fails all existing XHPAST tests since the block formats don't match.

Maniphest Tasks: T13492

Differential Revision: https://secure.phabricator.com/D21065
2020-04-07 14:31:56 -07:00
epriestley
33dc2fe819 Allow "phage" to print execution status on SIGINT
Summary: Ref T13490. The new Arcanist runtime supports workflow signal handling, but Phage isn't quite able to make use of it. Clean up the last few pieces so it can work.

Test Plan: Ran "phage", hit ^C, got status information.

Maniphest Tasks: T13490

Differential Revision: https://secure.phabricator.com/D21060
2020-04-06 11:09:43 -07:00
epriestley
32005f26a4 Move Phage to FuturePool
Summary: Ref T11968. Phage has another "sustained pool of Futures" use case, and needs some slight adjustments after Future API changes.

Test Plan: Ran `bin/phage status ...`, got a clean result instead of a JSON decoding failure.

Maniphest Tasks: T11968

Differential Revision: https://secure.phabricator.com/D21058
2020-04-05 05:56:21 -07:00
epriestley
099c2ae648 Introduce "FuturePool" to make it easier to manage an ongoing pool of futures
Summary:
Ref T11968. "FutureIterator" recently became non-rewindable, and starting a Future twice is now an error.

This complicates a handful of use cases where a mostly-constant pool of futures is maintained over a long period of time, notably in daemon overseers and repository pull daemons.

They previously relied on being able to do "new FutureIterator($futures)" to continue resolution of a list of futures from any state. This no longer works quite like it used to, since Futures generally may not belong to more than one iterator now (and this property is desirable).

Introduce "FuturePool", which maintains exactly one iterator but manages the small amount of glue around adding and removing Futures from it, destroying it if the pool empties, and rebuilding it if the pool fills.

Test Plan: See next change, which makes use of this.

Maniphest Tasks: T11968

Differential Revision: https://secure.phabricator.com/D21053
2020-04-03 12:05:09 -07:00
epriestley
368aec16a1 Update some ancient "set X=Y" environment code for new Windows execution without a shell
Summary:
Depends on D21051. Ref T13504. Ref T13209. This very old Mercurial code uses "X=Y hg ..." on Linux and "set X=Y & hg ..." on Windows.

The latter construct no longer works because we bypass the shell. The former construct is obsolete.

Additionaly, delete some ancient "branch merge" code which has no callers.

Test Plan: Created a diff in a Mercurial repository on Linux. I minimally vetted this on Windows since I don't have a "hg + Windows" environment at the moment.

Maniphest Tasks: T13504, T13209

Differential Revision: https://secure.phabricator.com/D21052
2020-04-02 13:50:57 -07:00
epriestley
d4d095dbf6 Make Windows escaping preserve "%" symbols in arguments
Summary:
Ref T13504. Ref T13209. We currently use "escapeshellarg()" under Windows, which destructively replaces "%" symbols with spaces. This is wrong, breaks general behavior with "git log --format=...", and has led to a lot of weird workarounds in `arc` code where we don't escape arguments we should be escaping to tiptoe around issues with "%".

Now that execution occurs via "bypass_shell", we can safely (probably?) escape things, although programs are still apparently free to parse the command string however they want.

Test Plan: Added unit tests, ran them under Mac and Windows, got clean results. Ran "arc version" on Mac and Windows.

Maniphest Tasks: T13504, T13209

Differential Revision: https://secure.phabricator.com/D21051
2020-04-02 13:44:13 -07:00
epriestley
5ce1d79717 Fix error behavior of "arc version" when it encounters a library which is not a working copy
Summary:
Ref T13504. The API has changed here slightly, and if you run "arc version" without "arcanist/" being a Git working copy, it currently fatals in a misleading way.

Instead, reach the error properly.

Test Plan: Ran "arc version" after moving aside ".git/", got a helpful error message instead of a confusing "call on null" exception.

Maniphest Tasks: T13504

Differential Revision: https://secure.phabricator.com/D21050
2020-04-02 08:24:22 -07:00
epriestley
63276697eb Fix three Windows subprocess issues
Summary:
Fixes T13504. This fixes three issues:

  # In ExecFuture, "proc_open()" on an invalid binary could fail with an unconditional exception.
  # In ExecPassthru, "proc_open()" on an invalid binary could fail with an unconditional exception.
  # In "arc browse", "start <url>" does not work when the shell is bypassed.

In (1) and (2), the desired behavior is to fail with an exit code which is sometimes upgraded to an exception depending on calling convention.

Issue (1) most commonly manifested as "find" failing when run via "cmd.exe".

Issue (2) most commonly manifested as "arc browse" failing.

Issue (3) was entangled with issue (2).

In cases (1) and (2), assume "proc_open()" failures under Windows are because of bad binaries and treat them like bogus commands on Linux/Mac.

In case (3), use "cmd /c start" instead of "start" as a default browser on Windows.

Test Plan:
  - On Windows, did mime type detection in cmd.exe. Before patch: proc_open() exception in "find". After patch: clean (albeit not terribly useful) detection.
  - On Windows, did "arc browse ...". Before patch: proc_open() exception in "start". After patch: clean browser execution.

Maniphest Tasks: T13504

Differential Revision: https://secure.phabricator.com/D21047
2020-04-01 16:11:05 -07:00
epriestley
492113370a Fix two issues with Future key selection inside FutureIterator
Summary:
Ref T11968.

  - Rekeying natural lists of futures creates more problems than it solves. For now, don't try to deal with this.
  - The scope of the future autokey was incorrect (per subclass, not per process).

Test Plan: Ran various future-oriented flows on new HardpointEngine code.

Maniphest Tasks: T11968

Differential Revision: https://secure.phabricator.com/D21046
2020-04-01 10:36:44 -07:00
epriestley
b1a712add8 Integrate "ServiceProfiler" into the base "Future"
Summary:
Depends on D21036. Ref T11968. Ref T13177. Currently, each Future integrates separately with ServiceProfiler, but much of the code is similar.

Move integration to the base class and lift up most of the implementation details.

Test Plan: Ran `arc diff --trace`, saw sensible output.

Maniphest Tasks: T13177, T11968

Differential Revision: https://secure.phabricator.com/D21038
2020-03-30 07:42:40 -07:00
epriestley
cb80f69715 Make "FutureIterator" queue management more formal
Summary: Depends on D21035. Ref T11968. This allows a "FutureIterator" to hold futures which are blocked because of unresolved dependencies, and makes the resolution process more structured.

Test Plan: Ran unit tests, created this revision.

Maniphest Tasks: T11968

Differential Revision: https://secure.phabricator.com/D21036
2020-03-30 07:42:09 -07:00
epriestley
6b75562c3e Make "exception" on Future a private property
Summary: Depends on D21034. Ref T11968. Continue modernizing Future.

Test Plan: Ran tests, created a revision.

Maniphest Tasks: T11968

Differential Revision: https://secure.phabricator.com/D21035
2020-03-30 07:34:51 -07:00
epriestley
4d55067fd8 Make the "result" property on Future private
Summary: Depends on D21033. Ref T11968. This is just an incremental step in modernizing Future and making it more robust. Currently, subclasses are expected to write directly to `$this->result`, but this isn't consistent with how modern classes generally work.

Test Plan: Ran unit tests, created this revision.

Maniphest Tasks: T11968

Differential Revision: https://secure.phabricator.com/D21034
2020-03-29 10:18:26 -07:00
epriestley
e20dce875c Resolve all futures inside FutureIterator
Summary:
Depends on D21032. Ref T11968. Currently, "Future" and "FutureIterator" can both resolve futures.

Treat "Future->resolve()" as sugar on resolving an iterator of size 1.

Test Plan: Ran tests, created this revision.

Maniphest Tasks: T11968

Differential Revision: https://secure.phabricator.com/D21033
2020-03-29 10:18:06 -07:00
epriestley
3df48c9257 Remove the "timeout" parameter from "Future->resolve()"
Summary:
Ref T11968. This future-level parameter has no nontrivial callers and makes the "fate of FutureGraph" changes more difficult.

Callers that are genuinely interested in this behavior can wrap the Future in a FutureIterator and use "setUpdateInterval()" to get the same behavior.

Test Plan: Grepped for "resolve()" and "resolvex()", updated callers.

Maniphest Tasks: T11968

Differential Revision: https://secure.phabricator.com/D21031
2020-03-29 10:13:59 -07:00
Paul Tarjan
33b9728b5f Run ls-files from the root of the directory
Summary:
One of our users ran into an issue where they were running `arc diff` in
a subdirectory and it so happened that in that directoy there wasn't any `lfs`
files so the repo was marked as `$is_lfs == false`. Lets allow `arc` to be run
from anywhere.

Test Plan: Internally this patch worked

Reviewers: epriestley, #blessed_reviewers

Reviewed By: epriestley, #blessed_reviewers

Subscribers: Korvin

Differential Revision: https://secure.phabricator.com/D21045
2020-03-25 14:23:53 -07:00
epriestley
4c12c3119b Treat all PHP language-level errors as exceptions by default
Summary:
Ref T13499. Currently, we throw most language errors as exceptions, but this list isn't exhaustive and errors we don't specifically make more severe are allowed to slip through.

This is generally undesirable, particularly in the case of "Undefined index:" errors. See T13499 for a specific case where this caused behavior to be more difficult to understand and diagnose than it should have been.

Make this the default behavior instead, except for "E_USER" errors, which we never expect to arise from first-party code.

This may be slightly too aggressive, but future changes can selectively reduce the severity of some types of errors if problems arise.

Test Plan:
  - Executed code which intentionally accessed an undefined index, got an exception.
  - Poked around Phabricator and Arcanist without any further issues cropping up, but I don't have a good way to develop confidence that the "reduced severity" list should genuinely be empty.

Maniphest Tasks: T13499

Differential Revision: https://secure.phabricator.com/D21044
2020-03-22 12:41:05 -07:00
epriestley
18799c1829 Switch file uploader in "arc diff" to use ConduitEngine
Summary: Fixes T13498. Currently, `arc diff` may invoke the file upload flow using an older variation of the API. Both the modern and fallback clients build an Engine, so switching to the modern API is trivial.

Test Plan:
  - Created a local commit with a 1MB binary file.
  - Ran `arc diff --only`.
  - Before patch: fatal on old API call.
  - After patch: clean upload.

Maniphest Tasks: T13498

Differential Revision: https://secure.phabricator.com/D21043
2020-03-20 12:19:17 -07:00
Paul Tarjan
97e050fce7 Use a named remote and branches for staging to help git-lfs
Summary:
I'm working on a fairly large monorepo using phabricator and we are
running into a `git-lfs` issue. Every single `arc diff` we have to wait
many seconds while all our lfs files are walked before the push goes through.

I chatted with the `git-lfs` folks in
https://github.com/git-lfs/git-lfs/issues/4076 and they suggested this workflow
change. I tested it on our repo and it does indeed seem to fix the issue. Three
things were change:

1. The remote url is named
2. Use branches instead of tags
3. Do a `git fetch`

(Also, hello after all this time! Hope you're all doing well over at phacility.)

Test Plan:
Before
```
$ arc diff
Linting...
 LINT OKAY  No lint problems.
Running unit tests...
 UNIT OKAY  No unit test failures.
 PUSH STAGING  Pushing changes to staging area...
Uploading LFS objects: 100% (8211/8211), 1.0 GB | 0 B/s, done.
Enumerating objects: 31, done.
Counting objects: 100% (31/31), done.
Delta compression using up to 12 threads
Compressing objects: 100% (21/21), done.
Writing objects: 100% (24/24), 1.77 KiB | 8.00 KiB/s, done.
Total 24 (delta 19), reused 0 (delta 0)
remote: Resolving deltas: 100% (19/19), completed with 6 local objects.
To github.com:robinhoodmarkets/web-staging.git
 * [new tag]             2581578b59b6341c1023377fd8741814e89fcd0c -> phabricator/base/427095
 * [new tag]             7d9be50fbca590f15742d8cc20edd4f082dfbb3b -> phabricator/diff/427095
Updated an existing Differential revision:
        Revision URI: https://phabricator.robinhood.com/D135442

Included changes:
  M       __shared/tools/arcanist-js/src/workflow/RHArcanistDiffWorkflow.php
```

After
```
$ arc diff
Linting...
 LINT OKAY  No lint problems.
Running unit tests...
 UNIT OKAY  No unit test failures.
 PUSH STAGING  Pushing changes to staging area...
Enumerating objects: 15, done.
Counting objects: 100% (15/15), done.
Delta compression using up to 12 threads
Compressing objects: 100% (7/7), done.
Writing objects: 100% (8/8), 638 bytes | 2.00 KiB/s, done.
Total 8 (delta 6), reused 0 (delta 0)
remote: Resolving deltas: 100% (6/6), completed with 6 local objects.
To github.com:robinhoodmarkets/web-staging.git
 * [new branch]          2581578b59b6341c1023377fd8741814e89fcd0c -> phabricator/base/427105
 * [new branch]          274cc3a25eb7856291c1d4c078b28b76af8a43b2 -> phabricator/diff/427105
Updated an existing Differential revision:
        Revision URI: https://phabricator.robinhood.com/D135442

Included changes:
  M       __shared/tools/arcanist-js/src/workflow/RHArcanistDiffWorkflow.php
```

(notice the lack of `Uploading LFS objects`)

Reviewers: epriestley, #blessed_reviewers

Reviewed By: epriestley, #blessed_reviewers

Subscribers: Korvin

Differential Revision: https://secure.phabricator.com/D21041
2020-03-20 11:57:26 -07:00
epriestley
66a6128239 Remove the "preg_quote()" lint rule and update the "__CLASS__" lint rule
Summary:
Depends on D21031. Ref T11968. This clears some lint with the word "Future", but is just a minor cleanup patch not really related to the main goal in that task.

We currently warn on `preg_quote()` with no second parameter, but this is valid and correct:

```
preg_match('('.preg_quote($x).')', ...)
```

This is the modern recommended style for this sort of expression, so the warning is often a false positive; drop it.

The "__CLASS__" warning looks for hard-coded class names in strings, but currently looks for them as a word anywhere in the string.

This is often a false positive and sometimes makes error messages or exceptions untranslatable. For example, translators can't do anything with this:

> Filesystem path "%s" does not exist.

...if it's written as:

> %s path "%s" does not exist.

...just because it happens to appear in the class "Filesystem". Some other classes, including "Future", suffer from this.

Even when the detection is correct, it's clunky and a mistake here (failing to update the class name in an error message) is unlikely to ever do any real damage.

Test Plan: Ran unit tests and `arc lint`.

Maniphest Tasks: T11968

Differential Revision: https://secure.phabricator.com/D21032
2020-03-06 09:14:10 -08:00
epriestley
31653f6b77 Fix an issue where "arc" may fail on startup when trying to read older "default" config
Summary:
See PHI1663. If "phabricator.uri" is not configured, we try to fall back to "default", but doesn't have a modern config specification and fails.

Instead, read "default" as a raw config value to preserve compatible behavior. My intent is to eventually remove it.

Test Plan:
In a directory with no "phabricator.uri" config available, ran `echo {} | arc call-conduit conduit.ping`. After the patch, got a reasonable error instead of a fatal.

In a directory with "default" configured but not "phabricator.uri", ran the same command. After the patch, got a ping.

Maniphest Tasks: T13497

Differential Revision: https://secure.phabricator.com/D21039
2020-03-06 08:31:25 -08:00
epriestley
1b97f8b408 Update "arc upload" for Toolsets
Summary: Ref T13490. This largely makes "arc upload" work, although the Future stuff is still a bit wonky. See T11968.

Test Plan: Ran "arc upload README.md", got an upload.

Maniphest Tasks: T13490

Differential Revision: https://secure.phabricator.com/D21030
2020-02-26 08:22:18 -08:00
epriestley
9bd5c23b2a Improve error handling in ArcanistRuntime when failing to load libraries
Summary: Ref T13490. This fixes one bug in D21025 (loading relative to "arcanist/" rather than the parent directory) and improves behavior when a library fails to load (we prompt the user to continue).

Test Plan:
  - Ran `arc list` with bad library specifications, got a sensible error and an option to continue.
  - Ran `arc list` with a library specification that existed next to "arcanist/", got a library load instead of an error.

Maniphest Tasks: T13490

Differential Revision: https://secure.phabricator.com/D21029
2020-02-25 14:07:22 -08:00
epriestley
9cd72baae9 Update Phage for toolsets and restore library loading behaviors
Summary: Ref T13490. This makes the "phage" toolset work properly and updates external library behavior to match the "classic" behavior, except that "--library" is now supported.

Test Plan: Ran "phage remote" workflows.

Maniphest Tasks: T13490

Differential Revision: https://secure.phabricator.com/D21025
2020-02-23 09:30:53 -08:00
epriestley
de461bb179 Fix two "implode()" order issues arising from wilds/experimental collapse
Summary:
Ref T13490. There's one simple "implode()" order issue here, and one slightly more complex one that uses "DIRECTORY_SEPARATOR" as glue.

Add test coverage for this, update the lint check to detect constants used as glue, and fix the callsites.

Test Plan:
  - Added a failing test and made it pass.
  - Ran `arc lint --everything` and looked for remaining implode warnings, found none.

Maniphest Tasks: T13490

Differential Revision: https://secure.phabricator.com/D21024
2020-02-23 08:34:30 -08:00
epriestley
ee66b15bd4 Port "arc upgrade" to Toolsets
Summary: Ref T13490. Allows "arc upgrade" to run through the new Toolsets infrastructure.

Test Plan: Ran "arc upgrade", although you can't upgrade feature branches so this can't be entirely tested until it hits "master".

Maniphest Tasks: T13490

Differential Revision: https://secure.phabricator.com/D21006
2020-02-17 11:33:17 -08:00
epriestley
d4e4271b57 Remove obscure features no longer supported by Toolsets from "classic" Arcanist
Summary: Depends on D21004. Ref T13490. The "wilds" branch removed a bunch of dead features but some of them were resurrected by the merge. I don't think any of these are desirable to retain, so purge them all again, even in classic mode.

Test Plan: Grepped for affected symbols.

Maniphest Tasks: T13490

Differential Revision: https://secure.phabricator.com/D21005
2020-02-17 09:28:39 -08:00
epriestley
d3b77af8a5 Require "--" as an argument terminator when running noninteractively
Summary:
Depends on D21001. Ref T13490.

  - Require "--" to terminate arguments when running noninteractively.
  - Don't correct spelling when running noninteractively (we still suggest corrections).
  - Remove old "phage" wrapper script.
  - Fix an issue where "argv" could implicitly generate a parseable "--argv" flag.
  - Accept "--" as an argument terminator even when there is no argument list.
  - Update some strings to use more modern quoting style.
  - Make workflows decline to handle signals by default.
  - Allow "arc weld" to weld non-UTF8 files together.

Test Plan: Ran various commands. Welded non-UTF8 files.

Maniphest Tasks: T13490

Differential Revision: https://secure.phabricator.com/D21002
2020-02-16 09:16:51 -08:00
epriestley
db8419f19b Port "arc weld" and "arc anoid" to Toolsets workflows, plus minor fixes
Summary: Ref T13490. Update the "weld" workflow and the "anoid" workflow. Incorporates D20938.

Test Plan: Ran "arc weld". Ran "arc anoid".

Maniphest Tasks: T13490

Differential Revision: https://secure.phabricator.com/D21001
2020-02-16 09:16:24 -08:00
epriestley
8cd79d38af Port "arc shell-complete" to Toolsets
Summary: Depends on D20996. Ref T13395. Ports the updated version of this workflow from "experimental".

Test Plan: Ran `arc shell-complete` to install the hook, then shell-completed commands.

Maniphest Tasks: T13395

Differential Revision: https://secure.phabricator.com/D20997
2020-02-14 09:16:46 -08:00
epriestley
70c6045c7f Update "arc alias" to modern workflows
Summary: Depends on D20993. Ref T13395. Merges the more-modern "alias" out of "experimental".

Test Plan: Defined and invoked aliases. This has some rough edges: notably, no easy list/delete flow.

Maniphest Tasks: T13395

Differential Revision: https://secure.phabricator.com/D20996
2020-02-14 09:16:18 -08:00
epriestley
0c6ae6bbcf Port "arc version" to Toolsets
Summary: Ref T13395. Depends on D20992. Run "arc version" as a modern workflow, not a classic workflow.

Test Plan: Ran "arc version".

Maniphest Tasks: T13395

Differential Revision: https://secure.phabricator.com/D20993
2020-02-14 09:15:58 -08:00
epriestley
cf9469e0d1 Port "arc liberate" to Toolsets
Summary: Ref T13395. Depends on D20991. Make "arc liberate" run as a toolset command, not a classic command.

Test Plan: Ran "arc liberate"; created this diff.

Maniphest Tasks: T13395

Differential Revision: https://secure.phabricator.com/D20992
2020-02-14 09:14:56 -08:00
epriestley
0e95fcbb7f Port "arc help" to Toolsets
Summary: Ref T13395. Make "arc help" run as a toolset command, not a classic command.

Test Plan: Ran "arc help".

Maniphest Tasks: T13395

Differential Revision: https://secure.phabricator.com/D20991
2020-02-14 09:14:30 -08:00
epriestley
c471983697 Collapse Arcanist toolsets from "wilds" into "master", as an overlay layer
Summary:
Depends on D20988. Ref T13395. Ref T13098. Ref T13203.

This brings all the "toolsets" code into "master". We try to run commands as toolsets commands first, then fall back to older code.

Since the "toolsets" class tree is mostly parallel to the older class tree, this isn't completely broken. Currently, all commands fall back.

Test Plan: Created this diff, ran various other commands. But this is probably a long shot from finished.

Maniphest Tasks: T13395, T13203, T13098

Differential Revision: https://secure.phabricator.com/D20990
2020-02-13 14:10:46 -08:00
epriestley
acf0607683 Merge utility/support changes from "wilds" to "master"
Summary:
Ref T13395. Merge a lot of stuff which doesn't break existing workflows:

    - Merge a UTF8 fix for "cmd.exe" on Windows.
    - Merge minor changes to JSON linters.
    - Merge some shell completion stuff.
    - Merge some "arc anoid" fixes.
    - Merge various Windows improvements to unit tests which interact with processes / the filesystem.
    - Merge some other Windows path fixes.
    - Merge a UTF8 character class fix.
    - Merge script initialization.
    - Merge unit test support scripts.
    - Merge some initialization code.
    - Merge Windows stdout/stderr-as-files code.
    - Merge a bunch of code for making exec tests work on Windows.
    - Merge more Windows unit test fixes.
    - Merge "continue on failure" mode when loading symbols.
    - Merge "GPC" order CLI fixes.

Test Plan: Ran `arc unit --everything`; created this change. There's likely some less-than-perfect code here.

Maniphest Tasks: T13395

Differential Revision: https://secure.phabricator.com/D20988
2020-02-13 14:10:09 -08:00
epriestley
0d62a10eda Don't depend on "XMLWriter" to load the lint renderer class tree
Summary: Fixes T13489. See that task for discussion.

Test Plan: Ran `arc lint` and `arc lint --output xml`. Faked a missing extension, ran `arc lint` (no problems) and `arc lint --output xml` (sensible error message).

Maniphest Tasks: T13489

Differential Revision: https://secure.phabricator.com/D20989
2020-02-13 13:38:52 -08:00
epriestley
8c4f6ce161 Merge the remainder of the "experimental" branch
Summary:
Depends on D20986. Ref T13395. This //mostly// collapses the entire "experimental" branch into "master".

I plan to change the "Ref/Hardpoint" pattern to become future oriented, but this is more steps forward than sideways.

Test Plan: Ran various `arc` workflows.

Maniphest Tasks: T13395

Differential Revision: https://secure.phabricator.com/D20987
2020-02-13 06:05:08 -08:00
epriestley
4c36860c43 Merge Arcanist lint changes from "experimental" branch
Summary: Ref T13395. Collapse changes to the linter workflow from "experimental" into "master".

Test Plan: Ran `arc lint`. Noted flag changes in changelog.

Maniphest Tasks: T13395

Differential Revision: https://secure.phabricator.com/D20986
2020-02-13 06:04:47 -08:00
epriestley
26f853b634 Merge "--draft" flag and related changes from "experimental" to "master"
Summary: Ref T13010. This brings the "--draft" flag (and a handful of related flags) to "master" from "experimental".

Test Plan: Ran "arc diff". This code has been in use on "experimental" for a long time.

Maniphest Tasks: T13010

Differential Revision: https://secure.phabricator.com/D20985
2020-02-12 16:54:18 -08:00
epriestley
a8a50b2fc0 Make "arcanist/" unit tests pass
Summary: Ref T13395. Fixes a file-locking test and removes a logging test that's more trouble than it's worth.

Test Plan: Ran "arc unit --everything" locally, got a clean bill of health.

Maniphest Tasks: T13395

Differential Revision: https://secure.phabricator.com/D20984
2020-02-12 16:20:30 -08:00
epriestley
61e059984a Merge "phage" from "experimental"
Summary: Ref T13395. Currently, "phage" is required for various cluster operations. Bring the working code out of "experimental". This isn't the final form; "wilds" has a fancier version.

Test Plan: Ran phage workflows against the cluster.

Maniphest Tasks: T13395

Differential Revision: https://secure.phabricator.com/D20982
2020-02-12 15:53:23 -08:00
epriestley
9b74cb4ee6 Fully merge "libphutil/" into "arcanist/"
Summary: Ref T13395. Moves all remaining code in "libphutil/" into "arcanist/".

Test Plan: Ran various arc workflows, although this probably has some remaining rough edges.

Maniphest Tasks: T13395

Differential Revision: https://secure.phabricator.com/D20980
2020-02-12 15:17:38 -08:00
epriestley
a36e60f0a3 Move HTML-only intraline diff code to Phabricator
Summary:
Ref T13395. This code relies on PhutilHTML, but that's moving to Phabricator.

It has no callers in libphutil or Arcanist.

Test Plan: Looked for callers.

Maniphest Tasks: T13395

Differential Revision: https://secure.phabricator.com/D20978
2020-02-12 13:13:23 -08:00
epriestley
21a1828ea0 Omit "--" in older fallback commands for Git remote URIs
Summary: Ref T13481. Some older versions of Git appear to not support "--" in these commands. Just drop it. This can lead to ambiguous results with certain obviously-silly remote names, but doesn't appear to lead to anything dangerous.

Test Plan: Will followup with user on ancient Git.

Maniphest Tasks: T13481

Differential Revision: https://secure.phabricator.com/D20952
2020-01-23 16:50:54 -08:00
epriestley
70c0fd3f22 In Git, fall back across versions more cleanly when trying to get the URI for a remote
Summary: Fixes T13481. When identifying the URI for a remote, fall back from "git remote get-url" to "git ls-remote --get-url" to "git config remote.<name>.url" based on command output and version tests.

Test Plan: Ran `arc land --hold`, rigged the subcommands to fail to try all three fallbacks, ran `arc land --hold --remote asdfasdf` to get an explicit failure.

Maniphest Tasks: T13481

Differential Revision: https://secure.phabricator.com/D20950
2020-01-23 15:19:28 -08:00
epriestley
cc850163f3 When "arc close-revision --finalize ..." skips closing a revision, print a message
Summary: Fixes T13458. Emit an explicit message when "arc close-revision --finalize" bails out because the revision is not "Accepted".

Test Plan: Ran `arc close-revision [--finalize] ...` on various revisions, saw more clear messaging.

Maniphest Tasks: T13458

Differential Revision: https://secure.phabricator.com/D20915
2019-11-18 20:31:51 -08:00
epriestley
cc1ff38843 When generating diffs in "arc diff", disable Git config option "diff.suppressBlankEmpty"
Summary:
Ref T13432. Git has a "diff.suppressBlankEmpty" config option which makes it emit nonstandard diffs with trimmed trailing whitespace on unchanged blank lines.

Currently, we don't parse these diffs correctly. Even if we do in the future, emitting a more standard diff is desirable.

Explicitly disable this option when executing "git diff" so we build more standard diffs.

Test Plan:
  - Configured this option.
  - Modified a file with a blank line in it without changing the blank line, got this goofy display diff:

{F6985234}

  - Applied patch, rediffed the same change, saw "-c diff.suppressBlankEmpty" in "--trace" output and got this sensible diff:

{F6985235}

Maniphest Tasks: T13432

Differential Revision: https://secure.phabricator.com/D20877
2019-10-29 10:14:40 -07:00
epriestley
73943d1bc9 Make "arc land --merge" an explicit error when targeting a Perforce remote
Summary: Ref T13434. Since "git p4 submit" gets more complicated when submitting merges, and empty merges (as with "--no-ff") seem to vanish, and it's not clear this is desirable or useful anyway, just make the "merge" strategy an explicit error with Perforce remotes.

Test Plan: Ran "arc land --merge ..." in a Git/Perforce repository, got an explicit error. Ran "arc land --squash ...", got existing working behavior.

Maniphest Tasks: T13434

Differential Revision: https://secure.phabricator.com/D20871
2019-10-28 11:59:42 -07:00
epriestley
7383c2f4e6 In "arc land", when "remote/onto" does not exist locally, try to fetch it before giving up
Summary:
Fixes T10650. It's valid to `arc land --remote origin --onto master` without first fetching that ref. If we can't find a local ref for a specified remote branch, try to fetch it before giving up.

(In the long run, this should be valid even if the remote branch does not exist at all and the user intends to create it -- see T12876 -- but this is a step toward that.)

Test Plan:
  - Ran `rm .git/refs/remotes/origin/master`, then landed into "master".
  - Before: "arc land" bailed out immediately.
  - After: "arc land" fetches the missing ref.

```
$ arc land
 TARGET  Landing onto "master", the default target under git.
 REMOTE  Using remote "origin", the default remote under Git.
 TARGET  No local ref exists for branch "master" in remote "origin", attempting fetch...
 FETCHED  Fetched branch "master" from remote "origin".
...
```

Maniphest Tasks: T10650

Differential Revision: https://secure.phabricator.com/D20870
2019-10-28 11:31:18 -07:00
epriestley
a76054f8d6 Update "arc help land" to reference Perforce support
Summary: Fixes T12668. Ref T13434. This is far from exhasutive, but suggest that Perforce probably works.

Test Plan: Read documentation.

Maniphest Tasks: T13434, T12668

Differential Revision: https://secure.phabricator.com/D20869
2019-10-28 11:25:32 -07:00
epriestley
ca66743905 Support Perforce/Git repositories in "arc land"
Summary: Ref T13434. Detect perforce remotes and use "git p4" commands in place of "git" commands when operating in Perforce mode.

Test Plan:
  - Landed "master" onto itself, saw master update.
  - Landed "feature1" onto clean "master", saw master update.
  - Landed "feature2" onto dirty "master", saw master stay dirty.
  - Landed with "--hold", got sensible submit instructions.

Maniphest Tasks: T13434

Differential Revision: https://secure.phabricator.com/D20868
2019-10-28 11:25:00 -07:00
epriestley
9c7bbb760a Move Git-specific "arc land" parsing of "--onto" and "--remote" into GitLandEngine
Summary: Ref T13434. Move some git-engine-specific handling of "arc land" arguments into the Git engine. This prepares to handle Perforce workflows.

Test Plan: Will "arc land" this change.

Maniphest Tasks: T13434

Differential Revision: https://secure.phabricator.com/D20867
2019-10-28 11:24:34 -07:00
epriestley
da6d4f85ee Add a lint check for deprecated argument order to "implode()"
Summary:
Ref T13428. Historically, "implode()" accepts arguments in either order. PHP 7.4+ warns about glue not being first.

Add a lint check when the second parameter is a static scalar, implying it is the glue parameter.

Test Plan: Ran unit tests. See next change.

Maniphest Tasks: T13428

Differential Revision: https://secure.phabricator.com/D20857
2019-10-17 09:09:08 -07:00
epriestley
3cdfe1fff8 When running "arc land" from a detached HEAD, don't try to delete the source ref
Summary:
Fixes T10321. Some reasonable but less-common workflows involve running `arc land` from a detached HEAD state.

When users do this, we currently try to delete the raw hash as though it were a branch during cleanup. Instead, detect if the thing we're thinking about deleting is a branch or not, and just leave it alone if it isn't.

Test Plan:
  - Ran `git checkout <some hash>`, then `arc land --revision <some revision>`.
  - Before, everything worked but cleanup tried to `git branch -D <some hash>`.
  - After, everything worked and cleanup skipped branch deletion.

Maniphest Tasks: T10321

Differential Revision: https://secure.phabricator.com/D20786
2019-09-05 05:31:00 -07:00
epriestley
d92fa96366 Fix two "msort()" vs "msortv()" issues in "arc land"
Summary: See <https://github.com/phacility/arcanist/pull/242>. Ref T13303. A little more fallout turned up in `arc`.

Test Plan: `grep msort(`

Reviewers: amckinley

Reviewed By: amckinley

Maniphest Tasks: T13303

Differential Revision: https://secure.phabricator.com/D20605
2019-06-20 16:07:13 -07:00
epriestley
1ef9409817 Update "arcanist/" for "topological" API changes
Summary: Ref T13325.

Test Plan: Grepped for `topograph`.

Reviewers: amckinley

Reviewed By: amckinley

Maniphest Tasks: T13325

Differential Revision: https://secure.phabricator.com/D20598
2019-06-20 16:05:21 -07:00
Asher Baker
7329bc7c32 Fix arc land on odd/modern git-svn checkouts
Summary:
The current code assumes git-svn is always working from a remote called
`trunk`, but if the repository is initialized without the `-T` option it
will instead be called `git-svn`, and if `--prefix` is used (which is
set by default to `origin/` in Git 2+) the remote name will have the
specified prefix as well.

Instead, look at the `fetch` target refspec set in the git-svn config.

Fixes T13293.

Test Plan:
`arc land` without errors (or manually creating a `trunk` branch) from a
checkout made with Git 2.18.0 (verified this manually on a non-`-T`
checkout as well).

Reviewers: epriestley, #blessed_reviewers

Reviewed By: epriestley, #blessed_reviewers

Subscribers: Korvin

Maniphest Tasks: T13293

Differential Revision: https://secure.phabricator.com/D19681
2019-05-23 10:58:42 +01:00
Joshua Spence
dd514e268b Modify the lint-test file format to allow for more powerful assertions
Summary:
Fixes T6854. The current format for `lint-test` files is somewhat inflexible and does not allow us to make assertions regarding the code or name of the linter messages (of class `ArcanistLintMessage`) that are raised. Specifically, the `${severity}:${line}:${char}` format is hardcoded in `ArcanistLinterTestCase`. In this diff, I extend the this format to achieve the following goals:

- Allow for the lint message code and name to be specified. Specifically, the full format is `${severity}:${line}:${char}:${code}:${name}`.
- Make all fields optional. `error:3:` will match any and all errors occuring on line 3.
- Provide more useful output when assertions fail. Specifically, output //all// lint messages that are missing and/or surplus. Previously, only the first lint message was output.

Test Plan: `arc unit`

Reviewers: #blessed_reviewers, epriestley, chad

Reviewed By: #blessed_reviewers, epriestley

Subscribers: Korvin, epriestley

Maniphest Tasks: T6854

Differential Revision: https://secure.phabricator.com/D11176
2019-05-21 13:48:30 +10:00
Wenzheng Jiang
82445bb605 Let lint rules support anonymous classes
Summary: Ref T4334. Depends on D19740. Improve some lint rules so they can handle anonymous classes.

Test Plan: Ran updated tests

Reviewers: joshuaspence, #blessed_reviewers, epriestley

Reviewed By: joshuaspence, #blessed_reviewers, epriestley

Subscribers: Korvin, epriestley

Maniphest Tasks: T4334

Differential Revision: https://secure.phabricator.com/D19741
2019-05-15 11:11:10 +10:00
Joshua Spence
6a8e76db32 Allow buildFutures and resolveFutures to be overridden
Summary:
I am writing a proxy linter that can be used to wrap any `ArcanistExternalLinter` and execute all commands within a Docker container (see [[https://github.com/freelancer/flarc/blob/master/src/lint/linter/ArcanistDockerContainerLinterProxy.php |`ArcanistDockerContainerLinterProxy`]] from [[https://github.com/freelancer/flarc | `flarc`]]). In order for `ArcanistDockerContainerLinterProxy` to behave like the `ArcanistExternalLinter` that is being proxied, `final` needs to be removed from some methods.

I figured this was reasonable to submit upstream as a similar change ({D19630}) was previously accepted.

Test Plan: N/A

Reviewers: epriestley, #blessed_reviewers

Reviewed By: epriestley, #blessed_reviewers

Subscribers: Korvin

Differential Revision: https://secure.phabricator.com/D19730
2019-05-15 09:10:07 +10:00
Joshua Spence
fceac878f1 Allow setCustomSeverityRules to be overridden in subclasses
Summary:
I am writing a proxy linter that can be used to wrap any `ArcanistExternalLinter` and execute all commands within a Docker container (see [[https://github.com/freelancer/flarc/blob/master/src/lint/linter/ArcanistDockerContainerLinterProxy.php |`ArcanistDockerContainerLinterProxy`]] from [[https://github.com/freelancer/flarc | `flarc`]]). In order for `ArcanistDockerContainerLinterProxy` to behave like the `ArcanistExternalLinter` that is being proxied, `final` needs to be removed from some methods.

I figured this was reasonable to submit upstream as a similar change ({D19630}) was previously accepted.

Test Plan: N/A

Reviewers: epriestley, #blessed_reviewers

Reviewed By: epriestley, #blessed_reviewers

Subscribers: Korvin

Differential Revision: https://secure.phabricator.com/D20514
2019-05-15 09:06:13 +10:00
Joshua Spence
4f583dded3 Call $linter->setEngine in linter tests
Summary: We aren't calling `$linter->setEngine($engine)`, even though we do have an `$engine`. This causes unit tests for any linters which require an engine to fail.

Test Plan: Ran the unit tests for a [[https://github.com/freelancer/flarc/blob/master/src/lint/linter/ArcanistDockerContainerLinterProxy.php | third-party linter]].

Reviewers: epriestley, #blessed_reviewers

Reviewed By: epriestley, #blessed_reviewers

Subscribers: Korvin

Differential Revision: https://secure.phabricator.com/D20515
2019-05-15 09:01:54 +10:00
epriestley
9ccbbee336 Fix a potential double-prompt in "arc land" when landing with ongoing builds
Summary: The recently-added, build-plan-behavior-aware check here does all of its own prompting, so we should skip the other prompting if it doesn't throw.

Test Plan: Will `arc land` something sketchy sooner or later.

Reviewers: amckinley

Reviewed By: amckinley

Differential Revision: https://secure.phabricator.com/D20494
2019-05-14 09:27:53 -07:00
epriestley
b61e890a0c Remove unnecessary "," from Pylint version regex
Summary:
See PHI1238. This "," in the regex can only make the lint binding fail if there is no "," in the version output string. In modern versions of Pylint, there is (apparently) no comma in the version string. Remove it.

See also <https://discourse.phabricator-community.org/t/arcanistpylintlinter-version-regex-issue/2688>

Test Plan:
```
$ pip install pylint
Traceback (most recent call last):
  File "/Users/epriestley/Library/Python/2.7/bin/pip", line 6, in <module>
    from pip._internal import main
ImportError: No module named pip._internal
```

¯\_(ツ)_/¯

Reviewers: amckinley, joshuaspence

Reviewed By: joshuaspence

Differential Revision: https://secure.phabricator.com/D20505
2019-05-14 07:30:21 -07:00
epriestley
9830c9316d Make minor correctness changes to some "arc patch" command execution
Summary:
Since I'm in here for PHI1083:

  - Add some "--" so we get correct behavior when you have a file named "master", a branch named "README.txt", etc.
  - Stop using "%C" unnecessarily.
  - Fix some untranslatable strings.

Test Plan: Ran `arc patch` a couple of times, ran the variations of `git` commands to catch anything weird with "--" handling.

Reviewers: amckinley

Reviewed By: amckinley

Differential Revision: https://secure.phabricator.com/D20254
2019-03-07 13:00:04 -08:00
epriestley
73804f0039 Fix a case where "arc patch" could skip submodule changes
Summary:
See PHI1083. Previously, see PHI648 and D19475.

When you apply a submodule patch in Git, it leaves you with a working copy that has the "submodule pointer" dirtied but the actual submodule untouched:

```
$ git status
On branch ...
Changes to be committed:
  (use "git reset HEAD <file>..." to unstage)

	modified:   philter

Changes not staged for commit:
  (use "git add <file>..." to update what will be committed)
  (use "git checkout -- <file>..." to discard changes in working directory)

	modified:   philter (new commits)
```

So, if you're applying `D123` and `submodule/` was previously pointed at commit "A" but `D123` updates it to point at commit "B", you get this after `git apply ...`:

  - Git index says "submodule/ = B".
  - On disk, "submodule/ = A".

Now, if you `git add --all` or `git commit --all`, git picks up the "change" on disk as an intended modification of the submodule. This puts the submodule back to "A" and overwrites/undoes the "pointer" update that's trying to make it point to "B".

To avoid this, update submodules after applying the patch.

Also, every time we modify the working copy, just update submodules.

Test Plan:
  - Add a submodule in branch "B1", pointed at commit "A".
  - Branch to create branch "B2". Update the submodule to point at commit "B". Commit this and `arc diff` it.
  - Go back to "B1". Use `arc patch D...` to apply the revision you just created.
  - Before change:
    - "arc patch" applies the submodule change, so "pointer = B", "disk = A".
    - "arc patch" runs "git commit --all", which looks at disk and sets "pointer = A".
    - This isn't a change, so we fail with an empty commit.
  - After change:
    - "arc patch" applies the submodule change, so "pointer = B", "disk = A".
    - "arc patch" updates submodules, so "pointer = B", "disk = B".
    - "arc patch" runs "git commit --all", which now has a change, and commits "submodule = B".

Reviewers: amckinley

Reviewed By: amckinley

Differential Revision: https://secure.phabricator.com/D20253
2019-03-07 12:52:27 -08:00
epriestley
f6b8480adc Implement "Warn When Landing" behavior for Build Plans in Arcanist
Summary:
Ref T13258. This makes "arc land" respect the new "Warn When Landing" behavior.

This will only work if you have very up-to-date APIs. Just fall back to the older code if the new API calls fail.

Test Plan: Ran `arc land` on a revision with builds in various states and with the different "Warn When Landing" behaviors. Saw appropriate warnings.

Reviewers: amckinley

Reviewed By: amckinley

Maniphest Tasks: T13258

Differential Revision: https://secure.phabricator.com/D20236
2019-03-06 06:47:53 -08:00
epriestley
96fde137a1 Improve performance of "arc diff" updates for changes with large diff text
Summary:
See PHI1104. The older "differential.querydiffs" method includes the entire raw diff text for all the diffs associated with a revision in its response, but we: only care about the most recent diff; and don't care about the text at all.

For reasonably large changes with several updates, this can be significantly slow.

We can get this same information more efficiently from the modern "differential.diff.search", since D19386 (April 2018). The only trick is that we need a "revisionPHID", which we don't have on hand.

For now, just fetch the revision PHID. In the future, we can likely make adjustments so that we have the revision PHID already by the time we get here.

This may slow down the normal case very slightly (since we now do two calls instead of one), but it speeds up the bad cases dramatically.

Test Plan:
Ran `arc diff` to update a change in a local repository. `var_dump()`'d the old and new algorithm results, saw the same outcome.

Used `arc diff --trace` on an update to a change to verify that `differential.diff.search` is called but `differential.querydiffs` is not.

Reviewers: amckinley

Reviewed By: amckinley

Differential Revision: https://secure.phabricator.com/D20221
2019-02-28 08:00:01 -08:00
epriestley
9581dd0f52 Add Arcanist support for highlighting indent change intraline diffs
Summary:
Ref T13161. See D20181. This allows the intraline highlighter to accept new ">" and "<" spans and apply a different style for them.

The input pattern is `list<segment>`. Each segment is `pair<wild kind, int byte_length>`, i.e. wrap the next `byte_length` bytes in a span of kind `kind`.

Before this change, the possible kinds of segements are `0` (no intraline diff, do not highlight) or `1` (intraline diff, highlight in bright color).

D20181 adds `<` (depth decreased) and `>` (depth increased). These are like `1`, but add a different class so the UI can handle them differently.

Test Plan: See D20181.

Reviewers: amckinley

Reviewed By: amckinley

Maniphest Tasks: T13161

Differential Revision: https://secure.phabricator.com/D20182
2019-02-19 12:17:32 -08:00
epriestley
07a208d8fc In "arc diff", warn when some reviewers are away even if not everyone is away
Summary:
Ref T13249. See PHI810. We currently warn you when //all// reviewers are away, but not when only some reviewers are away.

This makes some amount of sense under the "anyone can accept anything" rules we sort of recommend, but a lot of installs realistically have tons of owner/package rules now.

Instead, if any reviewers are away, show the user exactly who is away and until when, then make sure they don't want to make any adjustments.

(We can do a better job of this after the toolsets change when we can use the new APIs, but this is an easy fix for now.)

Test Plan: Created a revision with multiple reviewers, either some or all of whom were away. Got appropriate output and prompt behavior.

Reviewers: amckinley

Reviewed By: amckinley

Maniphest Tasks: T13249

Differential Revision: https://secure.phabricator.com/D20172
2019-02-15 14:44:37 -08:00
epriestley
7e61e43f65 Add version check whitelists for constants to the version compatibility lint rule
Summary: Ref T13249. We currently allow `if (function_exists('X')) { X(); }` but not `if (defined('X')) { X; }`. Allow the latter.

Test Plan: See D20145, which linted clean with this patch in place.

Reviewers: amckinley

Reviewed By: amckinley

Maniphest Tasks: T13249

Differential Revision: https://secure.phabricator.com/D20146
2019-02-12 05:19:28 -08:00
epriestley
25c2381959 Statically detect "continue" inside "switch"
Summary: See 30 prior patches. This is a fatal in PHP7, let's just hunt these down.

Test Plan: Ran unit tests. See next diff for results.

Reviewers: amckinley

Reviewed By: amckinley

Differential Revision: https://secure.phabricator.com/D19931
2018-12-28 00:01:12 -08:00
epriestley
eb732555a7 Fix a "continue;" inside a switch in ArcanistPHPCompatibilityXHPASTLinterRule
Summary: See <https://discourse.phabricator-community.org/t/arc-diff-fails-on-incompatible-linter-rule-with-php7-3/2198>.

Test Plan: Looked at the code carefully.

Reviewers: amckinley

Reviewed By: amckinley

Differential Revision: https://secure.phabricator.com/D19868
2018-12-12 09:22:12 -08:00
Aviv Eyal
3534d2baca Small ReMarkup fix
Summary: See https://discourse.phabricator-community.org/t/2086

Test Plan: paste new content in comment box, see it markedup

Reviewers: #blessed_reviewers, epriestley, amckinley

Reviewed By: #blessed_reviewers, epriestley

Subscribers: Korvin, epriestley

Differential Revision: https://secure.phabricator.com/D19794
2018-11-07 21:56:19 -08:00
epriestley
83661809e5 Work around a Windows escaping issue and security conecern in "hg cat --output ..."
Summary:
See PHI904. Ref T13210. Ref T13209. Currently, we have an `hg cat` construction which attempts to pass a literal `%p` to Mercurial. This fails because you can't pass `%` through `%s` outside of `wilds`.

It also uses `%C` to pass a list of file paths. This is broadly unsafe and can cause command execution if you modify a file named, e.g., `; rm -rf xyz` or similar. I think it would be difficult to turn this into an attack but it's fairly bad. This dates from D5144 in 2013.

Test Plan: With this patch, created D19757 which has valid binary data (see F5962134).

Reviewers: amckinley

Reviewed By: amckinley

Maniphest Tasks: T13210, T13209

Differential Revision: https://secure.phabricator.com/D19758
2018-10-26 07:28:50 -07:00
epriestley
2650e8627a Make the Arcanist comment remover less aggressive about stripping instructional comments
Summary:
Ref T13098. See PHI858. If you write this at the end of a message in `arc diff`:

```
  Subscribers:
  #projectname

  # NEW DIFFERENTIAL REVISION
  # Describe the changes in this new revision.
  # ...
```

...we'll currently eat the `#projectname` as an instructional comment, even if it is followed by an empty line.

Instead, stop eating stuff once we hit the first empty line. (We escape empty lines in comments already.)

After T13098 I'll maybe adjust this to use a more explicit instruction escape, like `##`, since there's no reason we're bound to `#`.

Test Plan: Added a unit test and made it pass.

Reviewers: amckinley

Reviewed By: amckinley

Maniphest Tasks: T13098

Differential Revision: https://secure.phabricator.com/D19639
2018-09-14 11:03:26 -07:00
Joshua Spence
30b7835c37 Allow willLintPaths and didLintPaths to be overridden
Summary: I'm not sure if the upstream will be interested in this change, but we are writing a linter which works by running an external command on the entire repository. This can't be done with `ArcanistExternalLinter` at the moment, which meant that we ended up copy-pasting most of `ArcanistFutureLinter`. This would be a lot easier if we could override `willLintPaths` and `didLintPaths`, but these methods are currently marked as `final`. An alternative solution would be some sort of `ArcanistLinter::transformPath` method.

Test Plan: N/A

Reviewers: epriestley, #blessed_reviewers

Reviewed By: epriestley, #blessed_reviewers

Subscribers: faulconbridge, Korvin

Differential Revision: https://secure.phabricator.com/D19630
2018-09-06 12:44:23 +10:00
epriestley
e1e93271e6 Make the ArcanistBundle algorithm do what "diff -u" does when hunks are arguably mergeable
Summary:
Ref T13187. See PHI838. If two hunks are separated by 7 lines of context, we can render them as either:

```lang=diff
+ Hunk A
  Context 1
  Context 2
  Context 3
  Context 4
  Context 5
  Context 6
  Context 7
+ Hunk B
```

...or:

```lang=diff
+ Hunk A
  Context 1
  Context 2
  Context 3
@@ +1,2 -3,4 @@
  Context 5
  Context 6
  Context 7
+ Hunk B
```

Since we get the same number of output lines either way and the first one is more human-readable, we picked that one.

However, `diff -u` does the second one. Since human-readability is probably less important than compatibility, change the behavior to be more similar to `diff -u`.

Test Plan: Added unit tests for the edge cases with default parameters (6 context lines, 7 context lines) and made them pass.

Reviewers: amckinley

Maniphest Tasks: T13187

Differential Revision: https://secure.phabricator.com/D19603
2018-08-24 11:00:16 -07:00
epriestley
d9a4293ae7 Consolidate redundant "should should" from some linter help strings in Arcanist
Summary: See <https://phabricator.wikimedia.org/T201138>.

Test Plan: Read carefully.

Reviewers: amckinley

Reviewed By: amckinley

Differential Revision: https://secure.phabricator.com/D19561
2018-08-03 14:36:41 -07:00
Aviv Eyal
875d018360 Fix arc diff when adding large new file with new git
Summary:
See https://discourse.phabricator-community.org/t/arc-not-supporting-git-2-17-1/.
When treating it a large file  binary, we try to get the "old" and "new" content using `git ls-tree` and `cat-file`.
If the file is new or deleted, there is no old file, so we try to work with filename `null`.

Under git < 2.17.1, that gets treated as `git ls-tree -- .`, which falls in the next condition under "no such path".
In git 2.18, etc, this is an error.

Explicitly bail out if there is no filename.

Test Plan: Add a new, large (>4Mb) file, arc diff.

Reviewers: epriestley, #blessed_reviewers

Reviewed By: epriestley, #blessed_reviewers

Subscribers: Korvin

Differential Revision: https://secure.phabricator.com/D19513
2018-07-09 17:59:15 +00:00
epriestley
222800a86e Parse Mercurial changeset evolution "instability" log field
Summary: See PHI718. Modern Mercurial with the "evolve" extension enabled may emit this field.

Test Plan: As D19262.

Reviewers: amckinley

Reviewed By: amckinley

Differential Revision: https://secure.phabricator.com/D19498
2018-06-19 16:15:30 -07:00
epriestley
df7313bdf2 In "arc patch", update submodules slightly later
Summary:
Ref T13151. See PHI648. With `arc patch --nobranch`, we update submodules a little too early.

I //believe// it is safe to just update them a little later, after the intermediate branch management logic runs.

Test Plan: Ran `arc patch --nobranch`, saw submodule update run later. Not 100% sure this doesn't cause weird issues, but I can't anticipate any.

Reviewers: amckinley, jmeador

Reviewed By: jmeador

Maniphest Tasks: T13151

Differential Revision: https://secure.phabricator.com/D19475
2018-06-07 12:03:08 -07:00
Tim McJilton
b199ca8086 [ARCUNIT] Set the ConfigurationManager of ConfigurationDrivenUnitTestEngines
Summary:
The Configuration Manager is supported by ArcanistUnitTestEngine but not support by the ArcanistConfigurationDrivenUnitTestEngine.

Added the configuration manager as one of the initially set properties of an ArcUnitTestEngine created by the ArcanistConfigurationDrivenTestEngine

Test Plan: Ran arc unit against a project without the change, verified the Configuration was none. Added this change and ran again and verified it was set

Reviewers: epriestley, #blessed_reviewers

Reviewed By: epriestley, #blessed_reviewers

Subscribers: Korvin

Differential Revision: https://secure.phabricator.com/D19465
2018-06-05 20:58:47 +00:00
epriestley
d581c453b8 Allow diff generation via ArcanistBundle to be limited to an approximate maximum byte size
Summary:
Ref T13137. See PHI592. When you have a diff with 600MB of videos, we want to bail out of diff generation early (as soon as we realize what we're dealing with), not build an 800MB text diff in memory and then throw it away.

Support bailout //during// diff generation once we realize we're in over our heads.

This is approximate, but since the limit is fairly large (512KB by default) it isn't too important to be precise.

Test Plan: Rigged some callers to set various byte limits, generated diffs including diffs with large binaries. Got an appropriate diff or exeception depending on how low the limit was.

Reviewers: amckinley

Reviewed By: amckinley

Maniphest Tasks: T13137

Differential Revision: https://secure.phabricator.com/D19444
2018-05-14 09:09:06 -07:00
epriestley
a1aec701e3 Raise the intraline diff hard limit from 80 to 100 characters
Summary: Fixes T1246. See PHI637. See T13137. Computers have gotten a bit faster so we can probably bump this up a little and see if it causes problems. This is `O(N^2)` so the this should be less than twice as expensive in the worst case.

Test Plan:
Created a diff affecting characters on a very long line separated by more than 80 but fewer than 100 characters, got a good intraline diff out of it:

{F5605162}

Reviewers: amckinley

Reviewed By: amckinley

Maniphest Tasks: T1246

Differential Revision: https://secure.phabricator.com/D19442
2018-05-09 13:38:20 -07:00
epriestley
a604548101 Slightly improve base85 performance for 64-bit systems
Summary:
Ref T13130. I wasn't able make this much better, but it looks like this is about ~20% faster on my system.

This kind of thing is somewhat difficult to micro-optimize because XHProf tends to over-estimate the cost of function calls. In XHProf, this looks much much faster than the old version (~100% faster) but the actual cost of `bin/conduit call --method differential.getrawdiff` hasn't improved that much. Still, it seems consistently faster across multiple runs.

Test Plan:
  - Pulled binary diffs over Conduit with `bin/conduit call --method differential.getrawdiff`.
  - Verified that they are byte-for-byte identical with the pre-change diffs, and look like they're ~20% faster.
  - Profiled the differences and saw a far more dramatic improvement, but I believe XHProf is exaggerating the effect of this change because it tends to overestimate function call cost.
  - Ran unit tests (from D19407), got byte-for-byte identical output under both 32bit and 64bit mode.

Reviewers: amckinley

Reviewed By: amckinley

Maniphest Tasks: T13130

Differential Revision: https://secure.phabricator.com/D19408
2018-04-27 12:04:04 -07:00
epriestley
bcab677a7a Restructure base85 unit tests to support inlining and multiple encoding pathways
Summary:
Ref T13130. I want to take a crack at improving performance here, but two possible approaches (inlining the actual encoding; using integers if they're big enough) aren't easy to test right now.

Restructure the tests so they can support these kinds of refactoring.

The "32bit" and "64bit" modes currently do the same thing, but I expect to introduce introduce separate encoding pathways in a future change, if the profiler says it actually helps.

(I'll hold this and everything that comes after it until I make meaningful performance improvements.)

Test Plan: Ran `arc unit`, got passes on tests.

Reviewers: amckinley

Reviewed By: amckinley

Maniphest Tasks: T13130

Differential Revision: https://secure.phabricator.com/D19407
2018-04-27 12:03:14 -07:00
Alex Vandiver
ad3087e5e1 Correctly parse git status --porcelain=2 output with filenames with spaces
Summary:
Filenames are last in `git status --porcelain=2` lines; they
are not escaped in any way, despite the fields being
whitespace-delimited.  `explode` thus happily chops apart filenames
with spaces in them, causing later git operations to operate only on
the filename up to the first space.

Split the lines into the right number of elements -- in all cases,
this is one more than the index we're using, since filenames come last.

Test Plan:
Altering a file with a space in its path, and running `arc diff -a`.

Added tests.

Reviewers: #blessed_reviewers, epriestley

Reviewed By: #blessed_reviewers, epriestley

Subscribers: Korvin, epriestley

Differential Revision: https://secure.phabricator.com/D19389
2018-04-19 19:17:16 -07:00
epriestley
73f5afd441 Remove "very large change" warning from Arcanist
Summary: Ref T13110. We now degrade very large changes and I'm not convinced any user ever entered "n" at this prompt.

Test Plan: Ran `arc diff` to create this very revision.

Maniphest Tasks: T13110

Differential Revision: https://secure.phabricator.com/D19299
2018-04-05 06:50:57 -07:00
epriestley
e44a2d3ac0 Improve argument parsing for "arc patch --revision Dxxx"
Summary: See PHI527. Ref T13116. The `--revision` flag currently fails if the argument is in the form `D123` instead of `123`. Normalize monogram arguments.

Test Plan: Ran `arc patch --revision Dxxx`, `arc patch --revision xxx`, `arc patch --revision xxx --diff yyy`, `arc patch`; got good behavior on the good ones and sensible error messages on the other ones.

Maniphest Tasks: T13116

Differential Revision: https://secure.phabricator.com/D19292
2018-04-03 10:56:46 -07:00
epriestley
b8c9c385a7 Survive extra "obsolete:" log output from the Mercurial evolve extension
Summary: See PHI502; see <https://bugzilla.mozilla.org/show_bug.cgi?id=1448137>.

Test Plan: I spent all of three minutes trying to install the `evolve` extension without success and gave up, but this probably does the right thing based on the example output in the Bugzilla issue.

Differential Revision: https://secure.phabricator.com/D19262
2018-03-26 14:12:15 -07:00
Alex Vandiver
bf3d32e34e Remove accidental sprintf injection in error reporting
Summary:
STDERR output with `%`s in it could cause:

```
ERROR 2: fprintf(): Too few arguments at [/usr/local/arcanist/src/workflow/ArcanistFeatureWorkflow.php:170]
```

Test Plan: Untested.

Reviewers: #blessed_reviewers, epriestley

Reviewed By: #blessed_reviewers, epriestley

Subscribers: Korvin, epriestley

Differential Revision: https://secure.phabricator.com/D19261
2018-03-26 13:56:50 -07:00
Nathan LeClaire
dcd7ef66d0 Add support for Go 1.10 (cached) output
Summary:
In Go 1.10 the output for tests was changed to have also a "(cached)" mode in
addition to the normal timing info printed. This is on by default. This adds
support for parsing these lines instead of erroring out on the regex.

Test Plan: Have a unit test included, and will continue to poke at it locally.

Reviewers: epriestley, #blessed_reviewers

Reviewed By: epriestley, #blessed_reviewers

Subscribers: Korvin

Differential Revision: https://secure.phabricator.com/D19161
2018-03-02 16:34:25 -08:00
epriestley
be1dd7e2ba Robustly fuse files together with arc weld
Summary: Fixes T8236. I played around with a lot of variations of this but in the end it felt like the simple version was best.

Test Plan: Ran `arc weld a.txt b.txt`, observed very robust fusion of materials.

Maniphest Tasks: T8236

Differential Revision: https://secure.phabricator.com/D19081
2018-02-13 15:15:36 -08:00
epriestley
349109426c Clarify what "--everything" means in "arc lint" and "arc unit"
Summary:
Fixes T13061. Both `arc lint` and `arc unit` accept an `--everything` flag, but the documentation isn't quite clear about what these flags do.

They act as though every //tracked// file in the repository (`git ls-files`, `hg manifest`, or `svn list -R`) is included in the argument list.

They do not lint/test ignored files (and I think almost all users would be very surprised if they did).

They also don't lint/test untracked files (files you have not yet used `git add`, `svn add`, or `hg add` on). This is slightly more contentious but we have good reasons for doing it (e.g., `git ls-files` often outperforms `find .` by a large margin) and I believe users very rarely use `--everything` in a situation where they have untracked files. The only real exception I can come up with is linter configuration/development, as in PHI343, and it seems okay to have a slightly surprising behvaior here.

Make the documentation more clear about what is in scope.

We could also rename these to `--nearly-everything` or whatever, but I think the name is probably clear enough given current information about how confusing this is (specifically: only rarely, in unusual cases).

Test Plan:
  - Grepped for documentation about these flags.
  - Ran `arc help lint`, `arc help unit`, `arc unit --everything x`, `arc lint --everything x` and read all the new messages.

Reviewers: amckinley

Reviewed By: amckinley

Maniphest Tasks: T13061

Differential Revision: https://secure.phabricator.com/D18989
2018-02-05 12:26:41 -08:00
epriestley
2e02332216 Add trailing tabs when generating synthetic Git diffs for files with spaces
Summary:
Fixes T8768. See PHI294. See that task for more details.

Git, Mercurial, `diff`, and `patch` have conspired to make things weird. To correctly handle files with spaces in the way everything else does and expects, we need to emit semantic trailing whitespace literals.

Test Plan:
- Created a file with spaces in it in a Mercurial repositroy, committed it, diffed it into a revision.
- Used `arc patch` to apply the change to a clean copy of the repository.
- Before patch: Mercurial incorrectly creates a file named `X`, not a file named `X Y.txt`.
- After patch: `arc patch` commit is identical to genuine commit.
- Also added test coverage. The other general behaviors here are fairly well covered already.

Reviewers: amckinley

Reviewed By: amckinley

Maniphest Tasks: T8768

Differential Revision: https://secure.phabricator.com/D18869
2018-01-16 13:57:27 -08:00
epriestley
3d06bd4c56 Fix a minor 'buildableStatus' error in "arc land"
See D18837. I made a mistake here with rigging this for testing; this line was
changed incorrectly.
2017-12-26 08:33:35 -08:00
Alex Vandiver
9144658e69 Accelerate working tree operations in git
Summary:
Currently, `arc` on `git` uses the following commands to examine the
state of the working tree and history; example times for a no-op diff in a
165k-file working tree are also shown:

```
1)  git diff --no-ext-diff --no-textconv --submodule=short --raw 'fb062d4ecce5d9c1786b7bfc8a0dedf6b11fdd96' --
  = 1,722,514 us

2a) git diff --no-ext-diff --no-textconv --submodule=short --raw 'HEAD' --
  = 1,715,507 us

2b) git ls-files --others --exclude-standard
  = 2,359,202 us

3)  git diff-files --name-only
  = 1,333,274 us
```

Steps (2a) and (2b) are run concurrently; this results in a total elapsed
wallclock time of approximately 5.4 seconds.  This is inefficient -- all four of
the above steps must both load the index and examine the working copy, which may
be slow operations when large repositories are used.  Additionally, none of the
effort of those stat calls on the working tree, or load time of the index, is
shared across the processes.

Step (1) is called from `getCommitRangeStatus`, which was split out in D4095; it
is currently never called on its own, only ever from `getWorkingCopyStatus`,
where it it combined with `getUncommittedStatus`.  The current behavior of the
method is to return the set of changes //either// in local commits //or//
uncommitted in the working tree, which duplicates work that
`getUncommittedStatus` is intended to do.  Changing the behavior of this method
(in Git, and other VCSes) to only examine _committed_ status seems both inline
with the name of the method and the original description of it in D4095 -- and
also serves to make it much faster, as it is an operation that need not inspect
the working tree at all.

Steps (2a), (2b), and (3) attempt to gather the state of the working copy, and
as such are all I/O bound but must examine nearly identical data.  For git
2.11.0 and higher, we can instead rely on the machine-parseable `git status
--porcelain=2` format, which provides the information from all of these commands
at once.  It also allows additional performance improvements, as `git status`
has been the focus of several optimizations in the latest versions of git (the
untracked cache and fsmonitor services, for instance), which are not available
in the lower-level `diff`, `ls-files`, and `diff-files` commands.

This has the added benefit of fixing a bug noticed in T9455, in that uncommitted
or unstaged changes in modules can now be detected, regardless of if they also
have changed their base commit.  It further resolves a bug where `.gitmodules`
appeared to have unstaged changes, when in reality the unstaged changes were in
submodules elsewhere in the tree.

For backwards compatibility with versions of git < 2.11.0, the old code is left
in place.  It is possible that the simpler output from v1 of `git status
--porcelain` would also suffice for some of the above benefits, but the payoff
of parsing yet another format is deemed insufficient; users wishing improved
performance should simply upgrade `git`.

Alltogether, these result in the following, for a no-op diff in a
165k-working-file tree:

```
1) git diff --no-ext-diff --no-textconv --submodule=short --raw 'fb062d4ecce5d9c1786b7bfc8a0dedf6b11fdd96' HEAD --
 = 9,227 us
2) git status --porcelain=2 -z
 = 739,964 us
```

...for a total of 749ms, an improvement of 4.7s.

Depends on D18841.

Test Plan: Existing tests.

Reviewers: #blessed_reviewers, epriestley

Reviewed By: #blessed_reviewers, epriestley

Subscribers: Korvin, epriestley

Differential Revision: https://secure.phabricator.com/D18842
2017-12-23 20:12:50 -08:00
Alex Vandiver
f34467914c Add tests for git submodules, based on current behavior
Summary:
This adds tests that detail the current behavior of `arc` in
the presence of `git` submodules.

Test Plan: No behavior change; wrote the tests such that they pass.

Reviewers: #blessed_reviewers, epriestley

Reviewed By: #blessed_reviewers, epriestley

Subscribers: Korvin, epriestley

Differential Revision: https://secure.phabricator.com/D18841
2017-12-23 20:01:20 -08:00
epriestley
c784b56920 Make "arc land" accommodate a minor API change in Harbormaster build statuses
Summary:
See PHI261. Currently "arc land" shows every build staus (passed, failed, building, etc) as yellow. Intended behavior is that passed builds are green, failed builds are red, and so on.

This is because of an unintended API change a while ago in D16356. Since the only impact was a cosmetic color issue, this escaped notice until now.

Additionally, try to use the modern `harbormaster.build.search` if it is available.

Test Plan:
  - Ran `arc land` with running builds, got reasonable coloration.
  - Faked the new method not being available, still got sensible behavior from the old method.

Reviewers: amckinley

Reviewed By: amckinley

Differential Revision: https://secure.phabricator.com/D18837
2017-12-23 11:39:19 -08:00
Alex Vandiver
249f3a80fe Default the prompt for "Amend HEAD with these patches" to true
Summary:
Most users, if they have gone through the trouble of
accepting the auto-fixes, are most likely going to want to take those
changes and attempt to land with them.  Assuming "Y" for this prompt
streamlines for the more likely flow.

Test Plan: `arc lint`

Reviewers: #blessed_reviewers, epriestley

Reviewed By: #blessed_reviewers, epriestley

Subscribers: Korvin, epriestley

Differential Revision: https://secure.phabricator.com/D18824
2017-12-12 01:43:16 -08:00
epriestley
f4c80a114d Make "arc land" prompt on "Changes Planned" revisions more explicit
Summary: Fixes T10233. See PHI231. Users sometimes believe this warning is a bug and/or don't understand how they're supposed to resolve it.

Test Plan: Ran `arc land` on a revision in "Changes Planned", got a sensible prompt. Ran `arc land` on a revision in another non-accepted state, got more or less the old prompt.

Reviewers: amckinley

Reviewed By: amckinley

Maniphest Tasks: T10233

Differential Revision: https://secure.phabricator.com/D18807
2017-11-30 13:51:50 -08:00
epriestley
9054604214 Fix some lint rendering issues when lines prior to other identical lines are removed
Summary: See PHI191. This is a rehash of an earlier fix, but we didn't have a test case for this half yet.

Test Plan:
  - Added a failing test, made it pass.
  - Added a linter like the one in PHI191, ran it, got a valid lint result instead of an exception.

Reviewers: amckinley

Reviewed By: amckinley

Differential Revision: https://secure.phabricator.com/D18759
2017-11-01 17:18:59 -07:00
epriestley
0989343a4e Correct some lint console renderer issues with files missing trailing newlines
Summary:
See PHI162. This corrects a couple more bugs:

  - If the old file didn't end in a newline, we could end up printing two lines next to each other in the output.
  - If the patch targeted "Line 6, character 1" instead of "line 5, character 3" in a file "1\n2\n3\n4\n5\n", we would fail to figure out what that meant when computing an offset because the last line has 0 characters on it.

Test Plan: Added failing unit tests, made them pass. Also tested with some fake linters similar to the ones described in PHI162.

Reviewers: amckinley

Reviewed By: amckinley

Differential Revision: https://secure.phabricator.com/D18716
2017-10-20 10:49:07 -07:00
epriestley
617c2e46d6 Make "line" and "char" strictly optional in ArcanistLintMessage
Summary: See PHI136. These are already optional on the server side in `HarbormasterBuildLintMessage`, and effectively mean "file-level issue", which is a bit niche but not unreasonable.

Test Plan: Checked that `HarbormasterBuildLintMessage` doesn't care if these keys exist, created this revision.

Reviewers: amckinley

Reviewed By: amckinley

Differential Revision: https://secure.phabricator.com/D18711
2017-10-17 14:30:31 -07:00
epriestley
76b54ce0a9 Fix parsing of Git branches with common and useful name "0"
Summary: See <https://discourse.phabricator-community.org/t/arc-has-a-spurious-failure-on-arc-diff/521>. Oh, PHP!

Test Plan: Created a branch named "0", ran `arc diff`. Before: fatal. After: this beautiful revision.

Reviewers: amckinley

Reviewed By: amckinley

Differential Revision: https://secure.phabricator.com/D18678
2017-10-04 10:20:48 -07:00
Alex Vandiver
c804c50260 Don't show a blank line if there is no user data
Summary:
SKIP lines, for instance, often have no UserData; there is no
reason to display a content-less blank line.

Test Plan: `arc unit`

Reviewers: #blessed_reviewers, epriestley

Reviewed By: #blessed_reviewers, epriestley

Subscribers: Korvin, epriestley

Differential Revision: https://secure.phabricator.com/D18632
2017-09-20 17:54:40 -07:00
epriestley
b836557b12 Correct lint rendering when patching trailing whitespace in files
Summary: Ref PHI48. If a patch removes all of the lines at the end of a file, we can get some array index errors.

Test Plan: Added failing test, made it pass.

Reviewers: amckinley

Reviewed By: amckinley

Differential Revision: https://secure.phabricator.com/D18631
2017-09-20 12:07:41 -07:00
Austin McKinley
df81d79d77 Add explicit limits to unit test/lint error names
Summary:
Fixes T12981.

See new `arc lint` output: P2071

See new `arc unit` output: P2072

Test Plan: Ran `arc unit/lint/diff` and observed new error instead of a Conduit error

Reviewers: epriestley

Reviewed By: epriestley

Subscribers: Korvin

Maniphest Tasks: T12981

Differential Revision: https://secure.phabricator.com/D18603
2017-09-14 12:12:08 -07:00
epriestley
cbc785ddce Fix a similar lint rendering issue when trimming identical lines out of patches
Summary: Ref T9846. See PHI48. See D18538 for a similar fix. We can contract the suffix lines too much if, e.g, a newline after another newline is removed. Prevent contraction to fewer than 0 lines.

Test Plan: Added a failing test, made it pass.

Reviewers: chad

Reviewed By: chad

Subscribers: alexmv

Maniphest Tasks: T9846

Differential Revision: https://secure.phabricator.com/D18541
2017-09-05 17:12:23 -07:00
epriestley
7371277d20 Fix a prefix/suffix counting issue in Arcanist lint rendering
Summary: Ref T9846. See PHI48. For replacing text in the form "ABC" with "ABBC", the trimmer had a bug.

Test Plan: Added failing tests, fixed 'em.

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T9846

Differential Revision: https://secure.phabricator.com/D18538
2017-09-05 13:09:46 -07:00
epriestley
d9cb5b18fb Cheat our way through arc version on Windows for the moment
Summary: Fixes T8291. See PHI52. This is papering over the real issue (T8298) but it's a 10-second patch so just improve things slightly for now.

Test Plan: Ran `arc version` locally; patch confirmed on a Windows system by an affected user.

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T8291

Differential Revision: https://secure.phabricator.com/D18518
2017-09-01 18:06:00 -07:00
epriestley
ad8214456a Restore ANSI highlighting of lint sections to lint output
Summary: Fixes T9846. This restores the last missing feature, ANSI highlighting of diff sections.

Test Plan:
Added a mode so we can actually test this stuff, activated that mode, wrote unit tests.

Did a bunch of actual lint locally too and looked at it, all seemed sane.

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T9846

Differential Revision: https://secure.phabricator.com/D18512
2017-08-31 13:29:18 -07:00
epriestley
213ed3ff15 Restore the caret pointer ("^") for lint lines which only have a character offset
Summary: Ref T9846. This was dropped when I refactored how things are rendered; restore it.

Test Plan: Added unit tests.

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T9846

Differential Revision: https://secure.phabricator.com/D18511
2017-08-31 13:28:47 -07:00
epriestley
86779b1526 Render lint patches which have newlines in a less misleading way
Summary:
Ref T9846. This rewrites the rendering algorithm in a mostly-compatible way and fixes the major issue.

  - Includes test coverage for removing a newline, from T12765.
  - Includes test coverage for mangling an XML tag, from T9846.

This omits two features, which I'll port forward separately:

  - For one-line patches, highlighting the patched section.
  - For zero-line patches, putting a little caret ("^") under the character where the warning occurred.

I'll restore these features in a followup change.

Test Plan: Ran unit tests, linted a few things.

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T9846

Differential Revision: https://secure.phabricator.com/D18510
2017-08-31 13:28:31 -07:00
epriestley
be67df6118 Extract and cover the logic for "trimming" a lint message
Summary:
Ref T9846. Sometimes, a lint message says to replace "the big bad wolf" with "the huge bad wolf": that is, the original and replacement text are the same at the beginning, or the end, or both.

To make this easier for humans to understand, we want to just show that "big" is being replaced with "huge", not that the entire phrase is being replaced.

This logic currently happens inline in console rendering. Pull it out and cover it so a future change can simplify console rendering.

Test Plan: Ran unit tests.

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T9846

Differential Revision: https://secure.phabricator.com/D18509
2017-08-31 13:28:01 -07:00
epriestley
ab0d81bca2 Add basic test coverage for lint console rendering
Summary: Ref T9846. The algorithm here is fairly invovled, so lay down some test coverage before breaking it.

Test Plan: Ran tests.

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T9846

Differential Revision: https://secure.phabricator.com/D18508
2017-08-31 13:27:44 -07:00
Alex Vandiver
5eda40337b Fix missing whitespace in arc linters --help message
Test Plan: Ran `arc linters --help`

Reviewers: #blessed_reviewers, epriestley

Reviewed By: #blessed_reviewers, epriestley

Subscribers: epriestley

Differential Revision: https://secure.phabricator.com/D18344
2017-08-04 13:12:59 -07:00
Asher Baker
836768bdcc Fix ArcanistPHPCloseTagXHPASTLinterRule always bailing out
Summary:
D13794 changed ArcanistPHPCloseTagXHPASTLinterRule to ignore inline HTML blocks, but selectDescendantsOfType returns an AASTNodeList (which always exists).

Instead, check that the count() of the node list is > 0.

empty.lint-test had to be changed, it wouldn't have been accepted had this rule not been broken before it was commited.

Added tests to cover ArcanistPHPCloseTagXHPASTLinterRule in the future.

Test Plan: `arc unit`

Reviewers: #blessed_reviewers, epriestley

Reviewed By: #blessed_reviewers, epriestley

Subscribers: epriestley

Differential Revision: https://secure.phabricator.com/D18271
2017-07-22 03:48:37 +01:00
Stephanie Ren
165df12046 Consistently use phutil_console_confirm().
Summary:
`PhutilConsole->confirm()` is vestigial as noted in efcd70c, as
`PhutilConsole` may be deprecated sometime in the future. `PhutilConsole`
was developed as a tool for T4281 but the feature has been removed
since.

Replace existing occurences of the `PhutilConsole->confirm()` pattern with
`phutil_console_confirm()`. There should be no change in functionality
since the two functions are interchangeable.

Test Plan: Manually tested by running `bin/arc lint`, `bin/arc diff --preview`, `bin/arc land --preview`.

Reviewers: #blessed_reviewers, epriestley

Reviewed By: #blessed_reviewers, epriestley

Subscribers: epriestley, alexmv

Differential Revision: https://secure.phabricator.com/D18185
2017-07-06 16:27:36 -07:00
epriestley
c04f141ab0 Remove obsolete "arc land" flags: --update-with-merge/rebase, --delete-remote
Summary:
Fixes T12815. During the last update to "arc land", some flags were disabled but remained in place in case we needed to retain them.

It now seems reasonably clear that we do not. The "rebase" and "merge" strategies for landing were replaced by a better "headless" strategy which seems to avoid the original issues, so these flags no longer do anything or reasonably could do anything.

`--delete-remote` is slightly more ambiguous (e.g., see T12650 and maybe others) but the only real use case is "git push = save changes".

Test Plan:
Ran `arc land --update-with-rebase`, was told the flag does not exist.
Grepped for affected flags/symbols.

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T12815

Differential Revision: https://secure.phabricator.com/D18108
2017-06-09 08:12:37 -07:00
Alex Vandiver
129d51fa09 If the base commit for arc patch does not exist locally, try to fetch it
Summary:
If the commit does not exist locally, aborting still leaves
the user checked out on the branch.  In nearly all cases, all that is
necessary is a fetch -- but the branch must also be cleaned up.  This
leads to the pattern of:
```
arc patch D12345
[...base commit does not exist...]
^C
git checkout master
git branch -D arcpatch-D12345
git fetch
arc patch D12345
```

Solve this common problem by simply trying to fetch once if the commit does not
exist locally.

Test Plan: Ran `arc patch` on a recent diff.

Reviewers: #blessed_reviewers, epriestley

Reviewed By: #blessed_reviewers, epriestley

Subscribers: epriestley

Differential Revision: https://secure.phabricator.com/D17949
2017-05-18 13:13:22 -04:00
Hubert Kowalski
3c4735795a Detect trailing spaces and tabs
Summary: Ref T12655 - this change properly detects trailing spaces or tabs (or combinations of thereof) on end of lines.

Test Plan: Use Text lint with trailing whitespace rule on files with spaces, tabs or combinations of thereof. Should properly detect and fix all those.

Reviewers: epriestley, #blessed_reviewers

Reviewed By: epriestley, #blessed_reviewers

Subscribers: Korvin, Itms

Maniphest Tasks: T12655

Differential Revision: https://secure.phabricator.com/D17814
2017-05-03 03:29:14 -07:00
epriestley
27b51e6192 Fix two minor issues with "arc download"
Summary:
Ref T12651. Ran into these during D17799:

  - Use `getStatusCode()` to put the actual status code into the message.
  - If we fail but wrote an empty file to reserve the filename, clean it up.

Test Plan:
  - Faked the error, `phlog()`'d the exception.
  - Saw sensible exception message.
  - Saw empty file get cleaned up.

Reviewers: chad, amckinley

Reviewed By: chad

Maniphest Tasks: T12651

Differential Revision: https://secure.phabricator.com/D17800
2017-04-28 07:45:25 -07:00
Austin McKinley
5d0f5afca8 Add ArcanistRaggedClassTreeEdgeXHPASTLinterRule to Phutil linter map
Summary: Fixes T12555.

Test Plan:
Added this class to the codebase and ran `arc liberate`:
```
<?php

class FooBar {
    public static function doTheFoo() {
        return 'foobar';
    }
}
```

Ran `arc lint` and observed this warning:
```
   Warning  (XHP87) Class Not `abstract` Or `final`
    This class is neither `final` nor `abstract`, and does not have a
    docblock marking it `@concrete-extensible`.

               1 <?php
               2
    >>>        3 class FooBar {
               4     public static function doTheFoo() {
               5         return "foobar";
               6     }
```

Added a `final` modifier to `FooBar`'s declaration and observed the warning went away.

Reviewers: epriestley

Reviewed By: epriestley

Subscribers: Korvin

Maniphest Tasks: T12555

Differential Revision: https://secure.phabricator.com/D17787
2017-04-25 10:58:21 -07:00
epriestley
a59cfca5f1 Upgrade "arc upload" to use SHA256
Summary: Fixes T12464. Moves "arc upload" to SHA256 where applicable.

Test Plan: Ran `arc upload` against a server with D17620 twice, saw it skip the actual upload the second time.

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T12464

Differential Revision: https://secure.phabricator.com/D17622
2017-04-04 16:56:35 -07:00
epriestley
c4e84550fc Allow "arc upload" to work correctly if it can not hash content
Summary:
Ref T12464. This is similar to D17619 and prepares us to move to SHA256 in the client.

Note that it's fine if `arc` and Phabricator disagree about hashing algorithms. We don't really trust the client anyway, so if things are mismatched clients will just end up transferring a bit more data instead of getting to cheat when Phabricator already has copies of data.

Test Plan: Ran `arc upload`, got a clean upload.

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T12464

Differential Revision: https://secure.phabricator.com/D17621
2017-04-04 16:24:27 -07:00
epriestley
82b7cd778a Make "arc download" use "file.search" if available
Summary: Fixes T8348. Just use normal HTTP GET to download files if the server is sufficiently modern.

Test Plan: Downloaded various files with `--as`, `--show`, large files, small files, old server, new server.

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T8348

Differential Revision: https://secure.phabricator.com/D17614
2017-04-04 16:16:11 -07:00
Jon Parise
d1db9a72b5 Improve the flake8 line-matching regex
Summary:
Because the character offset group is optional, the logic for dealing
with the previous index-based match object was more complex than it
needs to be. Switching to named groups makes this clearer.

As an example of how this was causing a problem, when the character
group *was* present (at index 3), it was being appending to the linter's
name in the call to ->setName(), resulting in confusing linter output.
We may have also been setting the character offset to the error code's
string, too, which is further nonsense.

Because we reliably capture the flake8 error code, I don't think there's
a need to append it to the linter's name at all now, so I removed that
part (so it's always just `flake8`), but it's not a problem to restore.

Lastly, I hoisted `$regex` out of the loop because it's a constant and
de-indenting it gave me enough room to continuing writing it all on one
line.

Test Plan: Tested primarily with flake8 3.3.0

Reviewers: epriestley, #blessed_reviewers

Reviewed By: epriestley, #blessed_reviewers

Subscribers: Korvin

Differential Revision: https://secure.phabricator.com/D17552
2017-03-24 09:19:06 -07:00
Jakub Vrana
3b6b523c2b Fix errors found by PHPStan
Test Plan: None.

Reviewers: #blessed_reviewers, epriestley

Reviewed By: #blessed_reviewers, epriestley

Subscribers: epriestley

Differential Revision: https://secure.phabricator.com/D17376
2017-02-18 09:24:19 +00:00
Jakub Vrana
d0353d2381 Fix errors found by PHPStan
Test Plan:
Ran `phpstan analyze -a autoload.php arcanist/src` with `autoload.php` containing:

  <?php
  require_once 'libphutil/src/__phutil_library_init__.php';
  require_once 'arcanist/src/__phutil_library_init__.php';

Reviewers: #blessed_reviewers, epriestley

Reviewed By: #blessed_reviewers, epriestley

Subscribers: Korvin

Differential Revision: https://secure.phabricator.com/D17367
2017-02-16 13:54:43 +00:00
epriestley
460b0e46ee Fix a property name collision in ArcanistHgServerChannel
Summary:
See D2665. Here, `channel` is the Mercurial wire protocol channel name ("o" = "output", "e" = "error", etc), not the underlying channel from `PhutilProxyChannel`.

Rename the property so there's no collision.

Test Plan:
```
$ ../../core/lib/arcanist/scripts/hgdaemon/hgdaemon_client.php . --trace --skip-hello
array(3) {
  [0]=>
  int(0)
  [1]=>
  string(103) "capabilities: getencoding runcommand
encoding: UTF-8
pid: 73263e20cf21273d50f1f66cab6e0f7c74f4864e67f0f"
  [2]=>
  string(0) ""
}

Executed in 30647 us.
```

Reviewers: vrana, chad

Reviewed By: vrana

Differential Revision: https://secure.phabricator.com/D17366
2017-02-16 05:44:10 -08:00
Aviv Eyal
13596cd10f Add back pht()s and tsprintf()s to arg set-config
Summary: See D17357

Test Plan: invoke and still see output in English?

Reviewers: #blessed_reviewers, joshuaspence, epriestley

Reviewed By: #blessed_reviewers, epriestley

Subscribers: Korvin

Differential Revision: https://secure.phabricator.com/D17362
2017-02-16 11:08:45 +00:00
Aviv Eyal
bc9b70508e arc set-config: warn about unknown keys
Summary: See T12266. Warn when the user tries to set a value we will probably not read.

Test Plan: `arc set-config foo bar`, see fancy warning.

Reviewers: #blessed_reviewers, epriestley

Reviewed By: #blessed_reviewers, epriestley

Subscribers: Korvin, epriestley

Differential Revision: https://secure.phabricator.com/D17357
2017-02-15 13:38:57 +00:00
Alex Vandiver
f3037bf216 [git] Override diff.submodule so git diff output is always parseable
Test Plan:
Removed a submodule with `diff.submodule` set to `log`, saw
`arc diff` error; with this change, it no longer does.

Reviewers: #blessed_reviewers, epriestley

Reviewed By: #blessed_reviewers, epriestley

Subscribers: epriestley

Maniphest Tasks: T10881

Differential Revision: https://secure.phabricator.com/D17327
2017-02-13 17:40:26 -08:00
Josh Cox
224986af63 Provide a better error message when an invalid ID is given to arc patch
Summary:
Fixes T8937. Previously when running `arc patch D9999999999` or `arc export --revision 99999999` with a non-existent diff or revision ID you would get a rather unhelpful error message. Now you'll get a slightly more helpful error message:
```
$ arc patch D99999999
Exception
Couldn't find a revision or diff that matches the given ID
(Run with `--trace` for a full exception trace.)
```

Test Plan: Ran arc patch with a valid revision and saw it patch successfully. Ran again with an invalid revision, saw the error message.

Reviewers: #blessed_reviewers, epriestley

Reviewed By: #blessed_reviewers, epriestley

Subscribers: Korvin, epriestley, yelirekim

Maniphest Tasks: T8937

Differential Revision: https://secure.phabricator.com/D17325
2017-02-08 04:53:41 -05:00