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1240 commits

Author SHA1 Message Date
epriestley
5003f21919 Put "Projects" edit field back on Basics management panel for repositories
Summary: Ref T10923. Fixes T10955. This was accidentally excluded when I broke the form into pages.

Test Plan: Saw edit field in panel; changed project tags for a repository.

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T10923, T10955

Differential Revision: https://secure.phabricator.com/D15896
2016-05-12 07:17:14 -07:00
epriestley
15f14d6c2f Fix improper viewer for Git SSH cluster workflows
Summary: Ref T10751. These workflows have separate `getUser()` and `getViewer()` for weird legacy reasons. `getUser()` is correct.

Test Plan:
  - Did a Git SSH push, verified that "Last Writer" reflected the proper user in the "Storage" UI in repository management.
  - Grepped for other callsites, double-checked that they used correct users.

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T10751

Differential Revision: https://secure.phabricator.com/D15893
2016-05-11 18:02:02 -07:00
epriestley
b21b43131c Clean up display of clone URIs a little bit
Summary:
Ref T10923. This makes the "Clone URI" UI a little nicer:

  - Show whether each URI is read-only, read-write, or external.
  - Clicking the button selects the URI.
  - Add a link to manage the appropriate credentials.

Test Plan: {F1308302, size=full}

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T10923

Differential Revision: https://secure.phabricator.com/D15891
2016-05-11 13:14:55 -07:00
epriestley
ee74fb4cc7 Add a "View Repository" button to the repository manage UI
Summary:
Ref T10923. We sort of dead-end new users creating repositories right now, by dumping them into the manage UI without an obvious way forward.

You can click the crumb to get to the repository, but by default it will say something like `R1` which isn't very obvious.

Add a more obvious navigational link to get to the main view.

Test Plan: {F1308196}

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T10923

Differential Revision: https://secure.phabricator.com/D15889
2016-05-11 09:21:14 -07:00
epriestley
6615d76c34 In Subversion, show "svn checkout <uri> <directory>" in Diffusion
Summary:
Ref T10923. The old behavior was to show a full command in SVN, Mercurial, and Git, like this:

  - `git clone <uri>`
  - `hg clone <uri>`
  - `svn checkout <uri> <directory>`

In Git and Mercurial, the `<uri>` ends in something like `/nice-repository-name.git` so the default directory it creates is called `nice-repository-name/`.

In Subversion, we don't (and can't easily) do that for various reasons so we provide an explicit `<directory>` with the nice name.

In the update, I've changed things to just show the URI. I often found that I wanted the URI alone, not the whole clone command (for example, to `fetch`, `remote-add`, etc). This is also consistent with GitHub. Because we have nice URIs for Git and Mercurial, `git clone <uri>` has good behavior.

In Subversion, `svn checkout <uri>` has bad beahvior (you get a directory named `47/` or whatever). So continue showing the whole command there.

We can possibly tailor this after T4245 finishes up and we get access to `/source/nice-repository-name/` URIs.

Test Plan:
  - Viewed a Subversion repository, saw a full command.
  - Viewed a Git repository, saw only a clone URI.

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T10923

Differential Revision: https://secure.phabricator.com/D15888
2016-05-11 09:20:54 -07:00
epriestley
de4312bcde Before executing svnserve, change the CWD to a readable directory
Summary: Fixes T10941. This avoids a confusing dead end when configuring Subversion hosting, where `svnserve` will fail to execute hooks if the CWD isn't readable by the vcs-user.

Test Plan:
  - Updated and committed in a hosted SVN repository.
  - Ran some git operations, too.
  - @dpotter confirmed this locally in T10941.

Reviewers: chad

Reviewed By: chad

Subscribers: dpotter

Maniphest Tasks: T10941

Differential Revision: https://secure.phabricator.com/D15879
2016-05-11 06:48:18 -07:00
epriestley
97c103fa00 Restore edit UI for "Import Only" in Subversion
Summary: Ref T10923. Although I'd ideally like to get rid of this eventually, keep it around for now.

Test Plan:
  - Edited value for an SVN repository.
  - Observed no panel present for a Git repository.

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T10923

Differential Revision: https://secure.phabricator.com/D15883
2016-05-11 06:47:32 -07:00
epriestley
3fdb1a2bc4 Improve behavior for not-yet-created non-cluster repositories
Summary: Fixes T10815. We already recovered reasonably from this for cluster repositories, but not for non-cluster repositories.

Test Plan:
  - Viewed cluster and non-cluster empty Git repository.
  - Viewed cluster and non-cluster empty Mercurial repository.
  - Viewed cluster and non-clsuter empty hosted SVN repository.
  - Viewed cluster and non-cluster empty observed SVN repository.

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T10815

Differential Revision: https://secure.phabricator.com/D15878
2016-05-11 06:38:53 -07:00
epriestley
71a97d8af5 When observing a repository, switch to "importing" mode on a large discovery in an empty repository
Summary:
Ref T10923. Fixes T9554.

When hosting a repository, we currently have a heuristic that tries to detect when you're doing an initial import: if you push more than 7 commits to an empty repository, it counts as an import and we disable mail/feed/etc.

Do something similar for observed repositories: if the repository is empty and we discover more than 7 commits, switch to import mode until we catch up.

This should align behavior with user expectation more often when juggling hosted vs imported repositories.

Test Plan:
  - Created a new hosted repository.
  - Activated it and allowed it to fully import.
  - Added an "Observe URI".
  - Saw it automatically drop into "Importing" mode until the import completed.
  - Swapped it back to hosted mode.

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T9554, T10923

Differential Revision: https://secure.phabricator.com/D15877
2016-05-11 06:36:38 -07:00
epriestley
f05fce44aa Provide more UI guidance when creating repositories
Summary: Ref T10923. Walk users through the "create, configure, activate" workflow a little better and set expectations more clearly.

Test Plan:
  - Created a new repository, saw new UI help.
  - Activated repository, saw onboarding help disappear.

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T10923

Differential Revision: https://secure.phabricator.com/D15875
2016-05-11 06:35:35 -07:00
epriestley
0b5ab2330d Hide irrelevant panels in Mercurial/Subversion, fix Subversion URIs
Summary:
Ref T10923.

  - Hide "Automation", "Staging" and "Branches" in repositories where they do nothing.
  - Fix SVN SSH URIs to read "svn+ssh://" and have proper paths.

Test Plan:
  - Verified irrelevant sections did not appear in Subversion in Manage UI.
  - Checked out a new hosted SVN repository.

Reviewers: chad, avivey

Reviewed By: avivey

Maniphest Tasks: T10923

Differential Revision: https://secure.phabricator.com/D15874
2016-05-10 05:16:08 -07:00
epriestley
e2bbde9675 Bring old repository instructions and guidance forward to new UI
Summary:
Ref T10923. Fixes T10406. This brings most of the guidance/instructions forward:

  - Some remained as instructions.
  - Some moved to documentation.

Test Plan: Went through all of the sections and hit the help.

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T10406, T10923

Differential Revision: https://secure.phabricator.com/D15873
2016-05-10 05:15:43 -07:00
epriestley
98b202042e Provide some more context hints for repository URIs
Summary: Ref T10923. This provides a little guidance about hosted vs observed, and points at the `diffusion.ssh-*` options.

Test Plan: Poked around in the web UI, saw useful guidance.

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T10923

Differential Revision: https://secure.phabricator.com/D15872
2016-05-10 05:14:29 -07:00
epriestley
3328e78a7b Sort out EditController / ManageController / EditproController Diffusion hierarchy
Summary: Ref T10923. This cleans up the remaining "pro" mess left by the cutover.

Test Plan: Viewed, managed, edited a repository.

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T10923

Differential Revision: https://secure.phabricator.com/D15871
2016-05-10 05:14:09 -07:00
epriestley
f191f66f34 Document API management of repositories and fix some issues with creating URIs via API
Summary:
Ref T10923. Primarily documents the process for creating repositories via the API.

Also fixes a couple of issues with `repositoryPHID` not being set yet when creating URIs via the API.

Test Plan:
  - Followed all documented steps to create a new repository.
  - Created and edited some new URIs from the web workflow, too.

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T10923

Differential Revision: https://secure.phabricator.com/D15870
2016-05-10 05:10:35 -07:00
epriestley
34e85aaeb8 Document most of the new Diffusion management panel
Summary: Ref T10923. This isn't complete yet, but reduces lies and increases truths.

Test Plan: Read documentation, clicked new "Documentation" nav item.

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T10923

Differential Revision: https://secure.phabricator.com/D15868
2016-05-10 05:10:07 -07:00
epriestley
8512f9358e Update redirect/cancel URIs for repository dialogs
Summary:
Ref T10923. Some of the dialogs ("Deactivate Repository", "Test Automation", etc.) had cancel or redirect URIs which I missed originally.

Go through them and make sure they all point to the right places.

Also removed one unused controller which I missed the first time around.

Test Plan:
  - Opened all these dialogs in a new tab with Command-Click.
  - Clicked every "cancel" and "submit" button on all of these dialogs.
  - Got consistently sent to the place I came from.

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T10923

Differential Revision: https://secure.phabricator.com/D15867
2016-05-10 05:09:36 -07:00
epriestley
846eec7563 Put "Push Policy" last in Diffusion, make editing Spaces work
Summary:
Ref T10923.

  - The "Policy" edit form currently goes "Push, View, Edit". Reorder the defaults to "View, Edit, Push".
  - Editing Spaces doesn't currently work: the element appears in the UI, but isn't actually processed when handling transactions. Make that work.

Test Plan:
  - Edited a repository policies, saw "View, Edit, Push".
  - Moved a repository between Spaces.

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T10923

Differential Revision: https://secure.phabricator.com/D15866
2016-05-09 06:34:02 -07:00
epriestley
fde02c4b4e Fix protocol serve detection for clustered repositories that terminate HTTPS
Summary:
Ref T10927. Pretty sure the issue is:

  - User makes an HTTPS request.
  - Load balancer terminates it, but with an `X-Forwarded-Proto` header.
  - `secure001` (or whatever; acting as web host) proxies it to `secure002` (or whatever; acting as a repository host). **This** connection is plain HTTP.
  - Since this proxied connection is plain HTTP, we check if the repository can serve over "http", but it can't: only "https". So we fail incorrectly, even though the original user request was HTTPS.

In the long run we should probably forward the `X-Forwarded-Proto` header, but that has some weird implications and it's broadly fine to allow either protocol to serve as long as the other one is active: configuration like `security.require-https` is already stronger than these settings.

Test Plan: This is likely only observable in production, but normal cloning still works locally.

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T10927

Differential Revision: https://secure.phabricator.com/D15856
2016-05-05 16:25:14 -07:00
Chad Little
e422190eb5 Fix create links when no repositories exist
Summary: Fixes T10925. Sends users to /new/ instead of /create/

Test Plan: Visit page, see links, clicky clicky.

Reviewers: epriestley, thoughtpolice

Reviewed By: thoughtpolice

Subscribers: thoughtpolice, Korvin

Maniphest Tasks: T10925

Differential Revision: https://secure.phabricator.com/D15849
2016-05-04 21:13:36 -07:00
epriestley
29d1115037 Swap Repository Edit UI to new code
Summary:
Ref T10748. This needs more extensive testing and is sure to have some rough edges, but seems to basically work so far.

Throwing this up so I can work through it more deliberately and make notes.

Test Plan:
- Ran migration.
- Used `bin/repository list` to list existing repositories.
- Used `bin/repository update <repository>` to update various repositories.
- Updated a migrated, hosted Git repository.
- Updated a migrated, observed Git repository.
- Converted an observed repository into a hosted repository by toggling the I/O mode of the URI.
- Conveted a hosted repository into an observed repository by toggling it back.
- Created and activated a new empty hosted Git repository.
- Created and activated an observed Git repository.
- Updated a mirrored repository.
- Cloned and pushed over HTTP.
- Tried to HTTP push a read-only repository.
- Cloned and pushed over SSH.
- Tried to SSH push a read-only repository.
- Updated several Mercurial repositories.
- Updated several Subversion repositories.
- Created and edited repositories via the API.

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T10748

Differential Revision: https://secure.phabricator.com/D15842
2016-05-04 16:19:57 -07:00
epriestley
42eaa88f80 Cut mirroring over to new URIs
Summary:
Ref T10748. This migrates and swaps mirroring to `PhabricatorRepositoryURI`, obsoleting `PhabricatorRepositoryMirror`.

This prevents you from editing, adding or disabling mirrors unless you know a secret URI (until the UI cuts over fully), but existing mirroring is not affected.

Test Plan:
  - Added a mirroring URI to an old repository.
  - Verified it worked with `bin/repository mirror`.
  - Migrated forward.
  - Verified it still worked with `bin/repository mirror`.
  - Wow, mirroring: https://github.com/epriestley/locktopia-mirror

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T10748

Differential Revision: https://secure.phabricator.com/D15841
2016-05-04 16:16:16 -07:00
epriestley
dd2b10b8f8 Guarantee repositories have unique local paths
Summary:
Ref T4039. Long ago these were more freely editable and there were some security concerns around creating a repository, then setting its local path to point somewhere it shouldn't.

Local paths are no longer editable so there's no real reason we need to provide a uniqueness guarantee anymore, but you could still make a mistake with `bin/repository move-paths` by accident, and it's a little cleaner to pull them out into their own column with a key.

(We still don't -- and, largely can't -- guarantee that two paths aren't //equivalent// since one might be symlinked to the other, or symlinked only on some hosts, or whatever, but the primary value here is as a sanity check that you aren't goofing things up and pointing a bunch of repositories at the same working copy by mistake.)

Test Plan:
  - Ran migrations.
  - Grepped for `local-path`.
  - Listed and moved paths with `bin/repository`.
  - Created a new repository, verified its local path populated correctly.

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T4039

Differential Revision: https://secure.phabricator.com/D15837
2016-05-04 16:09:52 -07:00
epriestley
c3afddec9c Add icons to the new repository edit nav
Summary:
Ref T10748. These:

  - Look nice.
  - Hint at panel contents / effects.
  - Hint which panels have been customized.
  - Allow panels with issues or errors to be highlighted with an alert/attention icon.

Test Plan: {F1256156}

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T10748

Differential Revision: https://secure.phabricator.com/D15836
2016-05-03 08:01:18 -07:00
epriestley
319a9cefde When creating a repository with EditEngine, allocate it onto a random cluster service
Summary: Ref T10748. This copies existing code in the `CreateController` which will eventually be removed.

Test Plan:
  - Created a new repository with the EditPro workflow.
  - Saw it come up into the cluster properly.

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T10748

Differential Revision: https://secure.phabricator.com/D15835
2016-05-03 08:00:47 -07:00
epriestley
c0d42a8943 Split Repository EditEngine form into smaller pages
Summary:
Ref T10748. This allows an EditEngine form to be broken up into pages.

This is less powerful than `PHUIPagedFormView`, because the pages are not sequential / stateful. Each form saves immediately once it's submitted, and can not take you to a new form or back/forward in a series of forms.

For example, you can't create a workflow where the user fills out 5 pages of information before we create an object, like the current repository workflow does.

However, the only place we've ever wanted to do this is repositories and it's fairly bad there, so I feel reasonably confident we aren't going to miss this in the future.

(We do "choose a type of service/repository/rule -> fill out one page of info" fairly often, but can do this without the full-power paging stuff.)

Test Plan:
  - Created a repository usin the new Manage UI, filling out only a handful of fields.
  - Edited a repository using the new Manage UI.
  - All forms are now EditEngine forms offering paged views of the big huge underlying form:

{F1254371}

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T10748

Differential Revision: https://secure.phabricator.com/D15832
2016-05-02 08:28:38 -07:00
epriestley
99718b61d8 Fill in new URI credential edit web UI interfaces
Summary:
Ref T10748. Ref T10366. Allows users to set credential for new URIs.

  - Ref T7221. Our handling of the "git://" protocol is currently incorrect. This protocol is not authenticated, but is considered an SSH protocol. In the new UI, it is considered an anonymous/unauthenticated protocol instead.
  - Ref T10241. This fixes the `PassphraseCredentialControl` so it doesn't silently edit the value if the current value is not visible to you and/or not valid.

Test Plan:
Performed a whole lot of credential edits, removals, and adjustments. I'll give this additional vetting before cutting over to it.

{F1253207}

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T7221, T10241, T10366, T10748

Differential Revision: https://secure.phabricator.com/D15829
2016-05-02 04:26:13 -07:00
epriestley
0ba3939ce3 Flesh out more web UI actions for new URI interface
Summary:
Ref T10748.

  - Allow users to add new URIs by clicking a button instead of knowing a secret URI.
  - Validate that URIs are actually valid URIs.
  - Add enable/disable action and strings.

Test Plan:
  - Created a new URI.
  - Tried to create a nonsense URI, created a good URI.
  - Enabled/disabled a URI.

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T10748

Differential Revision: https://secure.phabricator.com/D15825
2016-04-29 17:16:15 -07:00
epriestley
c314a3672f Allow callers to query information about repository URIs from diffusion.repository.search
Summary: Ref T10748. Adds a "uris" attachment with URI information.

Test Plan: Queried URI information via Conduit, saw reasonable looking information.

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T10748

Differential Revision: https://secure.phabricator.com/D15822
2016-04-29 16:12:41 -07:00
epriestley
da599386f6 Add diffusion.uri.edit for creating and editing repository URIs
Summary: Ref T10748. Brings the rest of the transactions to EditEngine, supports creating via API.

Test Plan:
  - Created a URI via API.
  - Created a URI via web.
  - Tried to apply sneaky transactions, got rejected with good error messages. <_< >_>

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T10748

Differential Revision: https://secure.phabricator.com/D15821
2016-04-29 13:55:48 -07:00
epriestley
c8711da5ff Add repository URI view pages and IO/Display edit logic
Summary:
Ref T10748.

  - New View page for repository URIs.
  - Make display and I/O behavior (observe, mirror, read, read/write) editable.
  - Add a bunch of checks to prevent you from completely screwing up a repository by making it writable from a bunch of differnet sources.

Test Plan:
{F1249866}

{F1249867}

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T10748

Differential Revision: https://secure.phabricator.com/D15816
2016-04-29 09:22:16 -07:00
epriestley
616c9ae887 Rough sketch of new repository URI editing
Summary:
Ref T10748. Ref T10366. This adds a new EditEngine, EditController, Editor, Query, and Transaction for RepositoryURIs.

None of these really do anything helpful yet, and these URIs are still unused in the actual application.

Test Plan: {F1249794}

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T10366, T10748

Differential Revision: https://secure.phabricator.com/D15815
2016-04-29 09:21:00 -07:00
epriestley
0459e95242 Give users a modal VCS choice when creating a new repository
Summary:
Ref T10748. Allow the new EditEngine workflow to create repositories by giving the user a modal repository type choice upfront.

(The rest of this flow is still confusing/weird, though.)

Test Plan:
  - Created a new repository.

{F1249626}

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T10748

Differential Revision: https://secure.phabricator.com/D15813
2016-04-29 09:20:31 -07:00
epriestley
311de580d6 Port "Actions" to new Repository UI
Summary: Ref T10748. This brings the "Actions" items (publish/notify + autoclose enabled) into the new UI.

Test Plan:
  - Edited this stuff via EditEngine and Conduit.
  - Viewed via new Manage UI.

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T10748

Differential Revision: https://secure.phabricator.com/D15811
2016-04-27 17:35:36 -07:00
epriestley
4c66a92f92 Port Repository "Branches" to new UI
Summary: Ref T10748. Makes a "Branches" panel, enables these transactions in the EditEngine.

Test Plan:
  - Edited via EditEngine + Conduit.
  - Viewed via manage UI.

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T10748

Differential Revision: https://secure.phabricator.com/D15809
2016-04-27 17:35:19 -07:00
epriestley
8f81930b5d Port Repository "Symbols" to Manage/Panel UI
Summary: Ref T10748. Port this, add EditEngine support, add some type validation to the transaction.

Test Plan:
  - Edited via EditEngine.
  - Edited via Conduit.
  - Viewed via Management UI.

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T10748

Differential Revision: https://secure.phabricator.com/D15808
2016-04-27 17:35:03 -07:00
epriestley
63bbe6b129 Port "Allow Dangerous Changes" to new Manage UI
Summary: Ref T10748. Brings this forward in the UI and EditEngine.

Test Plan:
  - Edited via Conduit.
  - Viewed via Manage UI.

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T10748

Differential Revision: https://secure.phabricator.com/D15805
2016-04-27 03:58:10 -07:00
epriestley
57a76d8a70 Port "Automation" panel to new Repository Manage UI
Summary: Ref T10748. Ports this UI and exposes it on the EditEngine.

Test Plan:
  - Edited via EditEngine.
  - Viewed new manage UI.

Reviewers: chad

Reviewed By: chad

Subscribers: hach-que

Maniphest Tasks: T10748

Differential Revision: https://secure.phabricator.com/D15804
2016-04-27 03:57:07 -07:00
epriestley
8606fb588f Port "Staging Area" repository section to new management UI
Summary: Ref T10748. Brings this over and adds EditEngine support for it.

Test Plan: Viewed and edited staging area information.

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T10748

Differential Revision: https://secure.phabricator.com/D15801
2016-04-26 08:11:53 -07:00
epriestley
8e4a7742eb Port local storage path to new repository Manage UI
Summary: Ref T10748. This merges "Storage" and "Cluster" into a single UI which combines the information of both.

Test Plan: {F1246882}

Reviewers: chad

Reviewed By: chad

Subscribers: hach-que

Maniphest Tasks: T10748

Differential Revision: https://secure.phabricator.com/D15800
2016-04-26 07:59:22 -07:00
epriestley
892a9a1f07 Make cluster repositories more resistant to freezing
Summary:
Ref T10860. This allows us to recover if the connection to the database is lost during a push.

If we lose the connection to the master database during a push, we would previously freeze the repository. This is very safe, but not very operator-friendly since you have to go manually unfreeze it.

We don't need to be quite this aggressive about freezing things. The repository state is still consistent after we've "upgraded" the lock by setting `isWriting = 1`, so we're actually fine even if we lost the global lock.

Instead of just freezing the repository immediately, sit there in a loop waiting for the master to come back up for a few minutes. If it recovers, we can release the lock and everything will be OK again.

Basically, the changes are:

  - If we can't release the lock at first, sit in a loop trying really hard to release it for a while.
  - Add a unique lock identifier so we can be certain we're only releasing //our// lock no matter what else is going on.
  - Do the version reads on the same connection holding the lock, so we can be sure we haven't lost the lock before we do that read.

Test Plan:
  - Added a `sleep(10)` after accepting the write but before releasing the lock so I could run `mysqld stop` and force this issue to occur.
  - Pushed like this:

```
$ echo D >> record && git commit -am D && git push
[master 707ecc3] D
 1 file changed, 1 insertion(+)
# Push received by "local001.phacility.net", forwarding to cluster host.
# Waiting up to 120 second(s) for a cluster write lock...
# Acquired write lock immediately.
# Waiting up to 120 second(s) for a cluster read lock on "local001.phacility.net"...
# Acquired read lock immediately.
# Device "local001.phacility.net" is already a cluster leader and does not need to be synchronized.
# Ready to receive on cluster host "local001.phacility.net".
Counting objects: 3, done.
Delta compression using up to 8 threads.
Compressing objects: 100% (2/2), done.
Writing objects: 100% (3/3), 254 bytes | 0 bytes/s, done.
Total 3 (delta 1), reused 0 (delta 0)
BEGIN SLEEP
```

  - Here, I stopped `mysqld` from the CLI in another terminal window.

```
END SLEEP
# CRITICAL. Failed to release cluster write lock!
# The connection to the master database was lost while receiving the write.
# This process will spend 300 more second(s) attempting to recover, then give up.
```

  - Here, I started `mysqld` again.

```
# RECOVERED. Link to master database was restored.
# Released cluster write lock.
To ssh://local@localvault.phacility.com/diffusion/26/locktopia.git
   2cbf87c..707ecc3  master -> master
```

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T10860

Differential Revision: https://secure.phabricator.com/D15792
2016-04-25 11:37:31 -07:00
epriestley
d0b5dac36b Make cluster repositories more chatty
Summary:
Ref T10860. At least in Git over SSH, we can freely echo a bunch of stuff to stderr and Git will print it to the console, so we can tell users what's going on.

This should make debugging, etc., easier. We could tone this down a little bit once things are more stable if it's a little too chatty.

Test Plan:
```
$ echo D >> record && git commit -am D && git push
[master ca5efff] D
 1 file changed, 1 insertion(+)
# Push received by "local001.phacility.net", forwarding to cluster host.
# Waiting up to 120 second(s) for a cluster write lock...
# Acquired write lock immediately.
# Waiting up to 120 second(s) for a cluster read lock on "local001.phacility.net"...
# Acquired read lock immediately.
# Device "local001.phacility.net" is already a cluster leader and does not need to be synchronized.
# Ready to receive on cluster host "local001.phacility.net".
Counting objects: 3, done.
Delta compression using up to 8 threads.
Compressing objects: 100% (2/2), done.
Writing objects: 100% (3/3), 256 bytes | 0 bytes/s, done.
Total 3 (delta 1), reused 0 (delta 0)
To ssh://local@localvault.phacility.com/diffusion/26/locktopia.git
   8616189..ca5efff  master -> master
```

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T10860

Differential Revision: https://secure.phabricator.com/D15791
2016-04-25 11:20:57 -07:00
epriestley
dc75b4bd06 Move all cluster locking logic to a separate class
Summary: Ref T10860. This doesn't change anything, it just separates all this stuff out of `PhabricatorRepository` since I'm planning to add a bit more state to it and it's already pretty big and fairly separable.

Test Plan: Pulled, pushed, browsed Diffusion.

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T10860

Differential Revision: https://secure.phabricator.com/D15790
2016-04-25 11:20:29 -07:00
epriestley
711f13660e Synchronize working copies before doing a "bypassCache" commit read
Summary:
Ref T4292. When the daemons make a query for repository information, we need to make sure the working copy on disk is up to date before we serve the response, since we might not have the inforamtion we need to respond otherwise.

We do this automatically for almost all Diffusion methods, but this particular method is a little unusual and does not get this check for free. Add this check.

Test Plan:
  - Made this code throw.
  - Ran `bin/repository reparse --message ...`, saw the code get hit.
  - Ran `bin/repository lookup-user ...`, saw this code get hit.
  - Made this code not throw.

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T4292

Differential Revision: https://secure.phabricator.com/D15783
2016-04-22 08:11:43 -07:00
epriestley
11aa902bd1 Show "Last Writer" and "Last Write At" in the UI, add more documentation
Summary:
Ref T10751. Make the UI more useful and explain what failure states mean and how to get out of them.

The `bin/repository thaw` command does not exist yet, I'll write that soon.

Test Plan: {F1238241}

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T10751

Differential Revision: https://secure.phabricator.com/D15766
2016-04-20 10:45:03 -07:00
epriestley
b9cf9e6f0d Fix an issue with PHID/handle management in push logs
Summary: Ref T10751. This cleans this up so it's a little more modern, and fixes a possible bad access on the log detail page.

Test Plan: Viewed push log list, viewed push log detail.

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T10751

Differential Revision: https://secure.phabricator.com/D15765
2016-04-20 04:47:10 -07:00
epriestley
6edf181a7e Record which cluster host received a push
Summary: Ref T4292. When we write a push log, also log which node received the request.

Test Plan: {F1230467}

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T4292

Differential Revision: https://secure.phabricator.com/D15759
2016-04-19 13:06:30 -07:00
epriestley
d87c500002 Synchronize (hosted, clustered, Git) repositories over Conduit + HTTP
Summary:
Ref T4292. We currently synchronize hosted, clustered, Git repositories when we receive an SSH pull or push.

Additionally:

  - Synchronize before HTTP reads and writes.
  - Synchronize reads before Conduit requests.

We could relax Conduit eventually and allow Diffusion to say "it's OK to give me stale data".

We could also redirect some set of these actions to just go to the up-to-date host instead of connecting to a random host and synchronizing it. However, this potentially won't work as well at scale: if you have a larger number of servers, it sends all of the traffic to the leader immediately following a write. That can cause "thundering herd" issues, and isn't efficient if replicas are in different geographical regions and the write just went to the east coast but most clients are on the west coast. In large-scale cases, it's better to go to the local replica, wait for an update, then serve traffic from it -- particularly given that writes are relatively rare. But we can finesse this later once things are solid.

Test Plan:
  - Pushed and pulled a Git repository over HTTP.
  - Browsed a Git repository from the web UI.

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T4292

Differential Revision: https://secure.phabricator.com/D15758
2016-04-19 13:05:45 -07:00
epriestley
31bc023eff Synchronize (hosted, git, clustered, SSH) repositories prior to reads
Summary:
Ref T4292. Before we write or read a hosted, clustered Git repository over SSH, check if another version of the repository exists on another node that is more up-to-date.

If such a version does exist, fetch that version first. This allows reads and writes of any node to always act on the most up-to-date code.

Test Plan: Faked my way through this and got a fetch via `bin/repository update`; this is difficult to test locally and needs more work before we can put it in production.

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T4292

Differential Revision: https://secure.phabricator.com/D15757
2016-04-19 13:05:17 -07:00
epriestley
c70f4815a9 Allow cluster devices to SSH to one another without acting as a user
Summary:
Ref T4292. When you run `git fetch` and connect to, say, `repo001.west.company.com`, we'll look at the current version of the repository in other nodes in the cluster.

If `repo002.east.company.com` has a newer version of the repository, we'll fetch that version first, then respond to your request.

To do this, we need to run `git fetch repo002.east.company.com ...` and have that connect to the other host and be able to fetch data.

This change allows us to run `PHABRICATOR_AS_DEVICE=1 git fetch ...` to use device credentials to do this fetch. (Device credentials are already supported and used, they just always connect as a user right now, but these fetches should be doable without having a user. We will have a valid user when you run `git fetch` yourself, but we won't have one if the daemons notice that a repository is out of date and want to update it, so the update code should not depend on having a user.)

Test Plan:
```
$ PHABRICATOR_AS_DEVICE=1 ./bin/ssh-connect local.phacility.com
Warning: Permanently added 'local.phacility.com' (RSA) to the list of known hosts.
PTY allocation request failed on channel 0
phabricator-ssh-exec: Welcome to Phabricator.

You are logged in as device/daemon.phacility.net.

You haven't specified a command to run. This means you're requesting an interactive shell, but Phabricator does not provide an interactive shell over SSH.

Usually, you should run a command like `git clone` or `hg push` rather than connecting directly with SSH.

Supported commands are: conduit, git-lfs-authenticate, git-receive-pack, git-upload-pack, hg, svnserve.
Connection to local.phacility.com closed.
```

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T4292

Differential Revision: https://secure.phabricator.com/D15755
2016-04-19 13:04:41 -07:00