Summary: Ref T1049. I'm fair sure this is just a case of bad data in my local install, but we probably don't want the default page for Harbormaster to break when there's invalid / missing container or buildable handles on any of the builds.
Test Plan: Loaded the page, didn't get a crash due to null reference.
Reviewers: #blessed_reviewers, epriestley
Reviewed By: #blessed_reviewers, epriestley
Subscribers: demo, epriestley, Korvin
Maniphest Tasks: T1049
Differential Revision: https://secure.phabricator.com/D8608
Summary:
Ref T1049. Currently, the "add" dialog lets you select a build step type, but then immediately creates one. If you "cancel" from the edit screen, you end up with an empty (and almost certainly invalid) build step.
Instead, don't create the step until it's valid.
Test Plan: Add Step -> Pick Type -> Add Step -> Cancel no longer creates empty step.
Reviewers: btrahan
Reviewed By: btrahan
Subscribers: epriestley
Maniphest Tasks: T1049
Differential Revision: https://secure.phabricator.com/D8605
Summary:
Ref T1049. Allows external systems to send a message to a build target. The primary intended use case is:
- You make an HTTP request to Jenkins.
- The build goes into a "waiting" state.
- Later, Jenkins calls `harbormaster.sendmessage` to report that the target passed or failed.
- The build continues as appropriate.
This is deceptively complicated because:
- There are a lot of race concerns. We might get a message back from an external system before it even responds to the request we made. We want to make sure we process these messages no matter when we receive them.
- These messages need to be sent to a build target (vs a build or buildable) because we'll get into trouble with parallelization later on otherwise (Jenkins is told to do 3 builds; we can't tell which ones failed or what overall state is unless the message are sent to targets).
- I initially thought about implementing this as a separate "Wait for a response from an external system" build step. This gets a lot more complicated for users once we do parallelization, though. Particularly, in the case where you've told Jenkins to do 3 builds, the three "wait" steps need to know which target they're waiting for (and jenkins needs to know some unique identifier for each target). So this pretty much boils down to a more complicated, more error-prone version of using target PHIDs.
This makes the already-muddy Build UI a bit worse, but it needs a general clarity pass anyway (it's showing way too much uninteresting data, and should show a better summary of results instead).
Test Plan:
- This doesn't really do anything interesting yet.
- Used Conduit to send messages to build plans.
- Viewed the messages on the build screen.
Reviewers: btrahan
Reviewed By: btrahan
Subscribers: epriestley
Maniphest Tasks: T1049
Differential Revision: https://secure.phabricator.com/D8604
Summary: Ref T1049. Tweaks some of the UI and code to improve / clean it up a bit.
Test Plan: Ran build plans, browsed UI.
Reviewers: btrahan
Reviewed By: btrahan
Subscribers: epriestley
Maniphest Tasks: T1049
Differential Revision: https://secure.phabricator.com/D8603
Summary: Ref T1049. For consistency, rename these to "Harbormaster...".
Test Plan: Ran migration, ran builds, everything still works fine.
Reviewers: btrahan
Reviewed By: btrahan
Subscribers: epriestley
Maniphest Tasks: T1049
Differential Revision: https://secure.phabricator.com/D8602
Summary: Ref T1049. D8588 already required custom code to change what it extends, so this is as good a time as we're going to get to move to more standard class name.
Test Plan: `arc liberate`; `arc lint`
Reviewers: btrahan
Reviewed By: btrahan
Subscribers: epriestley
Maniphest Tasks: T1049
Differential Revision: https://secure.phabricator.com/D8601
Summary:
Ref T1049. Fixes T4602. Moves all the funky field stuff to CustomField. Uses ApplicationTransactions to apply and record edits.
This makes "artifact" fields a little less nice (but still perfectly usable). With D8599, I think they're reasonable overall. We can improve this in the future.
All other field types are better (e.g., fixes weird bugs with "bool", fixes lots of weird behavior around required fields), and this gives us access to many new field types.
Test Plan:
Made a bunch of step edits. Here's an example:
{F133694}
Note that:
- "Required" fields work correctly.
- the transaction record is shown at the bottom of the page.
Reviewers: btrahan
Reviewed By: btrahan
Subscribers: epriestley
Maniphest Tasks: T4602, T1049
Differential Revision: https://secure.phabricator.com/D8600
Summary:
Ref T1049. In Harbormaster, build steps may have various inputs (like a host they should run on) and outputs (like a reference to an uploaded file).
- Currently, inputs aren't defined anywhere (except implicitly at runtime).
- Instead, define inputs explicitly.
- Currently, outputs are defined in a way that loses information when misconfigured (the keys will collide).
- Instead, define inputs and outputs so they work whether a step is configured correctly or not.
- Currently, there's no simple way to see a step's inputs and outputs.
- Add some UI for this.
- Currently, reordering steps has some surprising side effects.
- Instead of invalidating steps after reordering them, validate them at display time and warn the user.
Test Plan:
{F133679}
{F133680}
Reviewers: btrahan
Reviewed By: btrahan
Subscribers: epriestley, chad
Maniphest Tasks: T1049
Differential Revision: https://secure.phabricator.com/D8599
Summary: Ref T1049. This generally simplifies things. The steps which don't support variables generally don't make sense to support varaibles anyway.
Test Plan: Edited some steps.
Reviewers: btrahan
Reviewed By: btrahan
Subscribers: epriestley
Maniphest Tasks: T1049
Differential Revision: https://secure.phabricator.com/D8588
Summary: Precedence here was mucked up.
Test Plan: Plan with no explicit "method" now defaults to POST correctly.
Reviewers: dctrwatson, btrahan
Reviewed By: btrahan
Subscribers: epriestley
Differential Revision: https://secure.phabricator.com/D8559
Summary:
This revision adds a 'method' field to the HTTP request harbormaster build step. This allows the user to specify GET, POST, DELETE, and PUT (limited by the underlying wrapper phabricator uses for HTTP requests). I'm not sure how much sense PUT makes, but oh well.
Existing plans shouldn't break, as if this field is an empty string, we default to POST, which is the old behavior.
Fixes T4604
Test Plan: 1) Verified that the empty string does, in fact, issue a POST request. Changed the method to be GET and observed that the problem described in T4604 is resolved.
Reviewers: #blessed_reviewers, epriestley
Reviewed By: #blessed_reviewers, epriestley
Subscribers: aran, epriestley
Maniphest Tasks: T4604
Differential Revision: https://secure.phabricator.com/D8520
Summary: This can be a command, which might be arbitrarily long, but the column is VARCHAR(255).
Test Plan: `grep`
Reviewers: dctrwatson, btrahan
Reviewed By: btrahan
CC: aran
Differential Revision: https://secure.phabricator.com/D8446
Summary:
Ref T1191. Test that MySQL's rules match those of `phutil_is_utf8_with_only_bmp_characters()`:
- Build a string with //every// character that we consider to be a BMP character.
- Write it into MySQL.
- Read it back out.
- Make sure MySQL didn't truncate it.
Test Plan: Ran unit test. This test runs pretty quickly (50ms), the string with every character isn't all that enormous.
Reviewers: btrahan, arice
Reviewed By: arice
CC: chad, arice, aran
Maniphest Tasks: T1191
Differential Revision: https://secure.phabricator.com/D8314
Summary:
Ref T4379. I want project subscriptions to work like this (yell if this seems whacky, since it makes subscriptions mean somethign a little different for projects than they do for other objects):
- You can only subscribe to a project if you're a project member.
- When you're added as a member, you're added as a subscriber.
- When you're removed as a member, you're removed as a subscriber.
- While you're a member, you can optionally unsubscribe.
From a UI perspective:
- We don't show the subscriber list, since it's going to be some uninteresting subset of the member list.
- We don't show CC transactions in history, since they're an uninteresting near-approximation of the membership transactions.
- You only see the subscription controls if you're a member.
To do this, I've augmented `PhabricatorSubscribableInterface` with two new methods. It would be nice if we were on PHP 5.4+ and could just use traits for this, but we should get data about version usage before we think about this. For now, copy/paste the default implementations into every implementing class.
Then, I implemented the interface in `PhabricatorProject` but with alternate defaults.
Test Plan:
- Used the normal interaction on existing objects.
- This has no actual effect on projects, verified no subscription stuff mysteriously appeared.
- Hit the new error case by fiddling with the UI.
Reviewers: btrahan
Reviewed By: btrahan
CC: chad, aran
Maniphest Tasks: T4379
Differential Revision: https://secure.phabricator.com/D8165
Summary:
Hosted repositories have muddied this distinction somewhat. In some cases, we only want to use the real remote URI, and the call is only relevant for imported repositories.
In other cases, we want the URI we'd plug into `git clone`.
Move this logic into `PhabricatorRepository` and make the distinction more clear.
Test Plan: Viewed SVN, Git, and Mercurial hosted and remote repositories, all the URIs looked reasonable.
Reviewers: btrahan
Reviewed By: btrahan
CC: aran, dctrwatson
Differential Revision: https://secure.phabricator.com/D8096
Summary: Fixes T4336. This updates the build engine to delete all artifacts when targets are being deleted. This prevents conflicts when builds are restarted.
Test Plan: Restarted a build that had a lease host step and it didn't crash.
Reviewers: epriestley, #blessed_reviewers
Reviewed By: epriestley
CC: Korvin, epriestley, aran
Maniphest Tasks: T4336
Differential Revision: https://secure.phabricator.com/D8092
Summary:
Ref T2015. Several fixes:
- `checkForCancellation()` no longer exists, and isn't relevant for resumable stops. Throw it away for now.
- Fix an issue where a build could pass even if the final step failed.
- `phlog()` exceptions so they show up in `bin/harbormaster` and the daemon logs.
- Write an exception log if a step fails.
- Add a "throw an exception" step to debug this stuff more easily.
Test Plan:
- Grepped for `checkForCancellation()`.
- Ran a failing build where the final step caused the failure.
- Observed `phlog()` in `bin/harbormaster` output.
- Observed log in web UI:
{F101168}
Reviewers: btrahan, hach-que
Reviewed By: btrahan
CC: aran
Maniphest Tasks: T2015
Differential Revision: https://secure.phabricator.com/D7935
Summary: Ref T2015. This workflow is a little weird (runs in a dialog, no edit-before-create step, lots of internal classnames). Make it a little more standard.
Test Plan: See screenshots.
Reviewers: btrahan
Reviewed By: btrahan
CC: aran
Maniphest Tasks: T2015
Differential Revision: https://secure.phabricator.com/D7908
Summary: Ref T1049. Creates convenience actions at the Buildable level to stop, resume, or restart all builds.
Test Plan:
- Stopped all builds.
- Resumed all builds.
- Restarted all builds.
Reviewers: btrahan
Reviewed By: btrahan
CC: aran
Maniphest Tasks: T1049
Differential Revision: https://secure.phabricator.com/D7899
Summary:
Ref T1049. Improves the UI:
- Pending commands, like "stopping", are shown separately from the current status.
- Pending commands are shown on the list view.
- Builds can be restarted, stopped and resumed from the list view.
- Add a missing crumb.
Test Plan:
{F99022}
{F99023}
Reviewers: btrahan
Reviewed By: btrahan
CC: aran
Maniphest Tasks: T1049
Differential Revision: https://secure.phabricator.com/D7898
Summary: Ref T1049. The logic in the BuildEngine is a little different from the logic on the Build itself. Make these more consistent, and make queued commands more private.
Test Plan: Restarted, stopped, and resumed a build.
Reviewers: btrahan
Reviewed By: btrahan
CC: aran
Maniphest Tasks: T1049
Differential Revision: https://secure.phabricator.com/D7897
Summary:
Ref T1049. Currently you can cancel a build, but now that we're tracking a lot more state we can stop, resume, and restart builds.
When the user issues a command against a build, I'm writing it into an auxiliary queue (`HarbormasterBuildCommand`) and then reading them out in the worker. This is mostly to avoid race messes where we try to `save()` the object in multiple places: basically, the BuildEngine is the //only// thing that writes to Build objects, and it holds a lock while it does it.
Test Plan:
- Created a plan which runs "sleep 2" a bunch of times in a row.
- Stopped, resumed, and restarted it.
Reviewers: btrahan
Reviewed By: btrahan
CC: aran, chad
Maniphest Tasks: T1049
Differential Revision: https://secure.phabricator.com/D7892
Summary:
Ref T1049. Currently, the Harbormaster worker looks like this:
foreach (step) {
run_step(step);
}
This means steps can't ever be run in parallel. Instead, split it into two workers. The "Build" worker starts things off, and basically does:
update_build();
(We could theoretically do this in the original process because it should never take very long, but since there's a lock and it's a little bit complex it seemed cleaner to separate it.)
The "Target" worker runs an individual target (like a command, or an HTTP request, or whatever), then updates the build:
run_one_step(step);
update_build();
The new `update_build()` mechanism in `HarbormasterBuildEngine` does this, roughly:
figure_out_overall_status_of_all_steps();
if (build is done) { done(); }
if (build is fail) { fail(); }
foreach (step that is ready to run) {
queue_target_worker_for_step(step);
}
So, overall:
- The part of the code that updates Builds is completely separated from the part of the code that updates Targets.
- Targets can run in parallel.
Test Plan:
- Ran a bunch of builds via `bin/harbormaster build`.
- Ran a bunch of builds via web UI.
Reviewers: btrahan
Reviewed By: btrahan
CC: aran
Maniphest Tasks: T1049
Differential Revision: https://secure.phabricator.com/D7890
Summary:
Ref T2015. Not directly related to Drydock, but I've wanted to do this for a bit.
Introduce a common base class for all the workflows in the scripts in `bin/*`. This slightly reduces code duplication by moving `isExecutable()` to the base, but also provides `getViewer()`. This is a little nicer than `PhabricatorUser::getOmnipotentUser()` and gives us a layer of indirection if we ever want to introduce more general viewer mechanisms in scripts.
Test Plan: Lint; ran some of the scripts.
Reviewers: btrahan
Reviewed By: btrahan
CC: aran
Maniphest Tasks: T2015
Differential Revision: https://secure.phabricator.com/D7838
Summary:
Ref T2015. Moves a bunch of raw object loads into modern policy-aware queries.
Also straightens out the Log and Lease policies a little bit: there are legitimate states where these objects are not attached to a resource (particularly, while a lease is being acquired). Handle these more gracefully.
Test Plan: Lint / browsed stuff.
Reviewers: btrahan
Reviewed By: btrahan
CC: aran
Maniphest Tasks: T2015
Differential Revision: https://secure.phabricator.com/D7836
Summary: See thread; fixes fatal. The actual name of this method is `getHarbormaster...`.
NOTE: This fixes a fatal in Differential which impedes review, so I'm pushing it as-is.
Test Plan: Browsed a revision.
Reviewers: btrahan
CC: aran
Differential Revision: https://secure.phabricator.com/D7834
Summary: Ref T2015. DrydockLease predates widespread adoption of policies. Make it -- and its query -- policy aware.
Test Plan: Browsed leases from the web UI. Grepped for callsites.
Reviewers: btrahan
Reviewed By: btrahan
CC: hach-que, aran
Maniphest Tasks: T2015
Differential Revision: https://secure.phabricator.com/D7826
Summary:
Ref T1049. Adds `bin/harbormaster` and `bin/harbormaster build` for applying plans from the console. Since this gets `--trace`, it's much easier to debug what's going on.
This doesn't work properly with some of the Drydock steps yet, I need to look at those. I think `setRunAllTasksInProcess` probably obsoletes some of the mechanisms. It might also not work with "Wait for Builds" but I didn't check.
Test Plan: Used `bin/harbormaster` to run a bunch of builds. Ran builds from web UI.
Reviewers: btrahan
Reviewed By: btrahan
CC: aran
Maniphest Tasks: T1049
Differential Revision: https://secure.phabricator.com/D7825
Summary:
Ref T1049. Generally, it's useful to separate test/trial/manual runs from production/automatic runs.
For example, you don't want to email a bunch of people that the build is broken just because you messed something up when writing a new build plan. You'd rather try it first, then promote it into production once you have some good runs.
Similarly, test runs generally should not affect the outside world, etc. Finally, some build steps (like "wait for other buildables") may want to behave differently when run in production/automation than when run in a testing environment (where they should probably continue immediately).
So, formalize the distinction between automatic buildables (those created passively by the system in response to events) and manual buildables (those created explicitly by users). Add filtering, and stop the automated parts of the system from interacting with the manual parts (for example, we won't show manual results on revisions).
This also moves the "Apply Build Plan" to a third, new home: instead of the sidebar or Buildables, it's now on plans. I think this generally makes more sense given how things have developed. Broadly, this improves isolation of test environments.
Test Plan: Created some builds, browsed around, used filters, etc.
Reviewers: btrahan
Reviewed By: btrahan
CC: aran
Maniphest Tasks: T1049
Differential Revision: https://secure.phabricator.com/D7824
Summary: Ref T1049. Adds "Repository", "Revision", "Diff" and "Commit" as searchable fields.
Test Plan: Used all the fields to filter things.
Reviewers: btrahan
Reviewed By: btrahan
CC: aran
Maniphest Tasks: T1049
Differential Revision: https://secure.phabricator.com/D7823
Summary: Ref T4195. Ref T2783. We have an old-school implementation of this; move it into a LowLevel query and make callers all run through Conduit. I need the LowLevel query for hooks, to implement an "is merge commit" Herald rule.
Test Plan:
- Ran query via Conduit for SVN, Mercurial, Git.
- Parsed a commit which closed a revision, attach/closed worked correctly.
- Browsed Diffusion.
Reviewers: btrahan
Reviewed By: btrahan
CC: aran
Maniphest Tasks: T4195, T2783
Differential Revision: https://secure.phabricator.com/D7808
Summary: We currently have a lot of calls to `addCrumb(id(new PhabricatorCrumbView())->...)` which can be expressed much more simply with a convenience method. Nearly all crumbs are only textual.
Test Plan:
- This was mostly automated, then I cleaned up a few unusual sites manually.
- Bunch of grep / randomly clicking around.
Reviewers: btrahan, chad
Reviewed By: btrahan
CC: hach-que, aran
Differential Revision: https://secure.phabricator.com/D7787
Summary: Not every revision belongs to a repository, so we might end up here with `$repo` still equal to `null`. Don't fatal if we do.
Test Plan: iiam
Reviewers: btrahan, hach-que, zeeg
Reviewed By: hach-que
CC: aran
Maniphest Tasks: T1049
Differential Revision: https://secure.phabricator.com/D7771
Summary: This adds a build step which will block a build from continuing if there are previous builds of the build plan still running.
Test Plan: Configured a build plan with a wait of 60 seconds and a "wait for previous builds", then started a build. While that was still building, reconfigured the plan to have a wait time of 3 seconds, started it, and saw it move into the "Waiting" status. When the 60 second build finished, both builds passed.
Reviewers: epriestley, #blessed_reviewers
Reviewed By: epriestley
CC: Korvin, epriestley, aran
Maniphest Tasks: T1049
Differential Revision: https://secure.phabricator.com/D7745
Summary: This adds a build step in Harbormaster for publishing file artifacts as fragments in Phragment.
Test Plan:
Created a build plan with the following steps:
* Lease Host
* Upload Artifact
* Publish Fragment
Ran the build plan against a buildable and saw the fragment get created in Phragment. Ran the plan again and saw the fragment get updated with a new version. Modified the file that got uploaded and ran the plan again, checked the history of the fragment, and saw the differences represented as a Diff-Match-Patch patch.
Reviewers: epriestley, #blessed_reviewers
Reviewed By: epriestley
CC: Korvin, epriestley, aran
Maniphest Tasks: T4205
Differential Revision: https://secure.phabricator.com/D7742
Summary: This implements support for explicitly marking the sequence of build steps. Users can now drag and re-order build steps in plans, and artifact dependencies are re-calculated so that if you move "Run Command" before "Lease Host", the "Run Command" step has it's artifact setting cleared and thus the step becomes invalid.
Test Plan: Re-ordered build steps and observed dependencies being correctly recalculated.
Reviewers: epriestley, #blessed_reviewers
Reviewed By: epriestley
CC: Korvin, epriestley, aran
Maniphest Tasks: T1049
Differential Revision: https://secure.phabricator.com/D7715
Summary: This implements a build step for uploading an artifact from a build machine to Phabricator. It uses SFTP so that it will work on both UNIX and Windows build machines.
Test Plan: Ran an "Upload Artifact" build against a Windows machine (with FreeSSHD installed). The artifact uploaded to Phabricator, appeared on the build view and the file contents could be viewed from Phabricator.
Reviewers: epriestley, #blessed_reviewers
Reviewed By: epriestley
CC: Korvin, epriestley, aran
Maniphest Tasks: T1049
Differential Revision: https://secure.phabricator.com/D7582
Summary: Currently the "Edit Build Plan" page crashes if there are any build steps with invalid implementations (because the implementation class has been removed or renamed). This updates the Edit Build Plan page so that steps with invalid implementations can be deleted.
Test Plan: Looked at a build plan with invalid configurations and deleted it's steps.
Reviewers: epriestley, #blessed_reviewers
Reviewed By: epriestley
CC: Korvin, epriestley, aran
Maniphest Tasks: T4111, T1049
Differential Revision: https://secure.phabricator.com/D7708
Summary: This migrates the "Run Remote Command" build step over to use Drydock hosts and Harbormaster artifacts.
Test Plan:
Created a build plan with a "Lease Host" step and a "Run Command" step. Configured the "Run Command" step to use the artifact from the "Lease Host" step.
Saw the results:
{F87377}
{F87378}
Reviewers: epriestley, #blessed_reviewers
Reviewed By: epriestley
CC: Korvin, epriestley, aran
Maniphest Tasks: T1049, T4111
Differential Revision: https://secure.phabricator.com/D7707
Summary:
This adds LeaseHostBuildStepImplementation for getting leases on hosts in Drydock via Harbormaster. It stores the resulting lease in an artifact.
There is also a few bug fixes as well.
Test Plan: Created a build plan with a "Lease Host" build step. Ran the build plan and saw the build pass and the artifact in the database.
Reviewers: epriestley, #blessed_reviewers
Reviewed By: epriestley
CC: Korvin, epriestley, aran
Maniphest Tasks: T1049, T4111
Differential Revision: https://secure.phabricator.com/D7706
Summary: This implements build targets as outlined in D7582. Build targets represent an instance of a build step particular to the build. Logs and artifacts have been adjusted to attach to build targets instead of build / build step pairs.
Test Plan: Ran builds and clicked around the interface. Everything seemed to work.
Reviewers: epriestley, #blessed_reviewers
Reviewed By: epriestley
CC: Korvin, epriestley, aran
Maniphest Tasks: T4111, T1049
Differential Revision: https://secure.phabricator.com/D7703
Summary:
Ref T4122. Implements a credential management application for the uses described in T4122.
@chad, this needs an icon, HA HA HAHA HA BWW HA HA HA
bwahaha
Test Plan: See screenshots.
Reviewers: btrahan, chad
Reviewed By: btrahan
CC: chad, aran
Maniphest Tasks: T4122
Differential Revision: https://secure.phabricator.com/D7608
Summary:
Now that diffs have PHIDs we can create buildables for them.
This also adds `buildable.diff` in the variables list so the diff ID is available, and it also fixes the Cancel button on "Edit Plan" page so it redirects to the right place.
Test Plan: Created a buildable from a diff, ran a build plan against it that had `echo ${buildable.diff}` and got the right ID. Also tested the "Edit Plan" cancel redirect.
Reviewers: epriestley, #blessed_reviewers
Reviewed By: epriestley
CC: Korvin, epriestley, aran
Maniphest Tasks: T1049
Differential Revision: https://secure.phabricator.com/D7546
Summary:
This uses an event listener to render the status of builds on their buildables. The revision and commit view now renders out the status of each of the builds.
Currently the revision controller has the results for the latest diff rendered out. We might want to show the status of previous diffs in the future, but for now I think the latest diff should do fine.
There's also a number of bug fixes in this diff, including a particularly nasty one where builds would have a build plan PHID generated for them, which resulted in handle lookups always returning invalid objects.
Test Plan: Ran builds against diffs and commits, saw them appear on the revision and commit view controllers.
Reviewers: epriestley, #blessed_reviewers
Reviewed By: epriestley
CC: Korvin, epriestley, aran
Maniphest Tasks: T1049
Differential Revision: https://secure.phabricator.com/D7544
Summary:
Ref T1049. This is very minimal, but does what it says.
I merged the variable replacement code so Remote + HTTP can share more stuff.
Test Plan:
Ran "HTTP" and "Remote" build plans.
{F79886}
{F79887}
Reviewers: hach-que, btrahan
Reviewed By: hach-que
CC: zeeg, aran
Maniphest Tasks: T1049
Differential Revision: https://secure.phabricator.com/D7541
Summary: This prevents a crash in applying build plans when more than one buildable exists for the same object. It also adds a check into the "New Manual Build" page to ensure that users can't create a buildable for an object that already has one.
Test Plan: Tried to create a buildable for an object that already has one and a nice friendly error appeared. Applied a build plan to a buildable whose object has two buildables and didn't get a crash any more.
Reviewers: epriestley, #blessed_reviewers
Reviewed By: epriestley
CC: Korvin, epriestley, aran
Differential Revision: https://secure.phabricator.com/D7543
Summary: This adds a `build.id` variable, cleans up the naming convention of other variables and also fixes an issue in the remote command to read the buffers after the command finishes.
Test Plan: Ran a build with `/bin/echo ${build.id}` and saw the build ID come through.
Reviewers: epriestley, #blessed_reviewers
Reviewed By: epriestley
CC: Korvin, epriestley, aran
Maniphest Tasks: T1049
Differential Revision: https://secure.phabricator.com/D7540
