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Author SHA1 Message Date
Jakub Vrana
a778151f28 Fix errors found by PHPStan
Test Plan: Ran `phpstan analyze -a autoload.php phabricator/src`.

Reviewers: #blessed_reviewers, epriestley

Reviewed By: #blessed_reviewers, epriestley

Subscribers: Korvin, hach-que

Differential Revision: https://secure.phabricator.com/D17371
2017-02-17 10:10:15 +00:00
epriestley
bd9e54b621 Navigage Buildkite builds with more nuance
Summary:
Ref T12173.

  - If we want to fetch a tag, Buildkite needs it as a "branch" (this means more like "ref to fetch").
  - The API gets upset if we pass "refs/tags/...", so just pass the tag name without the prefix, which works.
  - Do a better job with commits and pass a real branch to fetch.

Test Plan:
  - Built a commit with Buildkite.
  - Build a revision with Buildkite.

Reviewers: chad

Reviewed By: chad

Subscribers: PHID-OPKG-gm6ozazyms6q6i22gyam

Maniphest Tasks: T12173

Differential Revision: https://secure.phabricator.com/D17282
2017-01-31 17:26:45 -08:00
epriestley
2e9cc5e8e8 Make implicit audits by the Owners tool use modern code
Summary:
Ref T10978. This updates audits triggered by Owners to use a modern transaction. Minor changes:

  - After D17264, we no longer need the "AUDIT_NOT_REQUIRED" fake-audits to record package membership. This no longer creates them.
  - This previously saved English-language, untranslatable text strings about audit details onto the audit relationship. I've removed them, per discussion in D17263.

The "Audit Reasons" here are potentially a little more useful than the Herald/Explicit-By-Owner ones were, since the rules are a little more complex, but I'd still like to see evidence that we need them.

In particular, the transaction record now says "Owners added auditors: ...", just like Differential, so the source of the auditors should be clear:

{F2549087}

T11118 (roughly "add several Owners audit modes", despite the title at time of writing) might impact this too. Basically, this is simple and maybe good enough; if it's not quite good enough we can refine it.

Test Plan: Ran `bin/repository reparse --owners <commit>` saw appropriate owners audits trigger.

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T10978

Differential Revision: https://secure.phabricator.com/D17266
2017-01-30 15:23:48 -08:00
epriestley
5e7a091737 Write an explicit edge for commit membership in packages
Summary:
Ref T10978. Currently, during commit import, we write an "Audit Not Required" auditor for commits which don't require an audit.

This auditor is used to power the "Commits in this package" query in Owners.

This conflates audits and commit/package membership. I think it might even predate edges. Code needs to dance around this mess and we get the wrong result in some cases, since auditors are now editable.

Instead, write an explicit edge which just says "this commit is part of such-and-such packages". Then use that to run the query. Logical!

I'll issue guidance on this but I'm not migrating it, since it fixes itself going forward and only really affects the UI in Owners.

Test Plan:
  - Ran `bin/audit update-owners` with various arguments.
  - Viewed packages in web UI, saw them load the proper commits.
  - Queried by packages in Diffusion explicitly.
  - Clicked the "View All" link in Owners and got to the right search UI.

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T10978

Differential Revision: https://secure.phabricator.com/D17264
2017-01-30 15:23:34 -08:00
epriestley
97cac83e9b Add a "Needs Verification" state to Audit
Summary:
Fixes T2393. This allows authors to explicitly say "I think I fixed everything, please accept my commit now thank you".

Also improves behavior of "re-accept" and "re-reject" after new auditors you have authority over get added.

Test Plan:
  - Kicked a commit back and forth between an author and auditor by alternately using "Request Verification" and "Raise Concern".
  - Verified it showed up properly in bucketing for both users.
  - Accepted, added a project, accepted again (works now; didn't before).
  - Audited on behalf of projects / packages.

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T2393

Differential Revision: https://secure.phabricator.com/D17252
2017-01-25 13:08:59 -08:00
epriestley
ca182c7f48 Clean up "Audit Authority" code, at least mostly
Summary:
Ref T2393. We had three copies of this code ("which packages/projects can a user accept on behalf of?"). I removed one in D17250. This consolidates the other two.

This still isn't perfect and it should probably live in a Query or something some day, but there's some weird stuff going on with the viewer in the editor context, and at least the code handles the viewer correctly now and isn't living somewhere weird and totally unrelated to auditing, and the callsites don't need to do a bunch of extra work.

This also moves towards fixing the "re-accept if you've already accepted but then a new package you have authority over was added" bug, which we fixed recently in Differential. This should be less common in Audit, but should still be fixed.

Test Plan: Viewed and audited commits with a mixture of user, package, and project auditors. Saw actions apply to the expected set of auditors.

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T2393

Differential Revision: https://secure.phabricator.com/D17251
2017-01-25 13:08:25 -08:00
epriestley
545dad319e Add an "Auditors" rule for Commits
Summary: Fixes T5889. You can't write a rule like "if no other Herald rules did anything...", but you can use this rule to check for Owners or an explicit "Auditors" field doing things.

Test Plan: Using the test console, ran an "Auditors" rule against a commit with and without an auditor. Got expected pass/fail outcomes.

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T5889

Differential Revision: https://secure.phabricator.com/D17221
2017-01-18 10:05:30 -08:00
epriestley
903e37a21b Show yellow "draft" bubble in Audit
Summary: Fixes T6660. Uses the new stuff in Audit to build an EditEngine-aware icon.

Test Plan: {F2364304}

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T6660

Differential Revision: https://secure.phabricator.com/D17208
2017-01-16 10:28:59 -08:00
epriestley
19525ed81a Add diffusion.commit.search Conduit API method
Summary: Ref T10978. This is bare bones, but the SearchEngine is at least mostly in reasonable shape now, so get it in place and freeze the old stuff. I previously froze `audit.query`, which did much the same thing.

Test Plan: Issued some queries with the API, technically got results back.

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T10978

Differential Revision: https://secure.phabricator.com/D17194
2017-01-12 13:23:29 -08:00
epriestley
45c740ac98 Render revision and audit state icons in Maniphest
Summary:
Fixes T7076. This could probably use some tweaking but should get the basics in place.

This shows overall object state (e.g., "Needs Review"), not individual viewer state (e.g., "you need to review this"). After the bucketing changes it seems like we're mostly in a reasonable place on showing global state instead of viewer state. This makes the overall change much easier than it might otherwise have been.

Test Plan: {F2351867}

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T7076

Differential Revision: https://secure.phabricator.com/D17193
2017-01-12 13:23:13 -08:00
epriestley
c05cb1ba6d Make "Audit Requested" put commits into the "Needs Audit" state
Summary: Fixes T7504. I think that task legitimately describes a bug and that the current behavior is counterintuitive.

Test Plan: Manually added an auditor to a commit with none; saw it become "Audit Required" as an overall state.

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T7504

Differential Revision: https://secure.phabricator.com/D17185
2017-01-11 14:59:16 -08:00
epriestley
255e3fb1e4 Allow auditors to be added and removed from commits in a modern way
Summary: Ref T10978. Ref T7676. Make auditors work more like reviewers, so they can be freely added or removed.

Test Plan:
  - Interacted with auditors via "Edit Commit" and API.
  - Comment area is still oldschool and doesn't work yet.

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T10978, T7676

Differential Revision: https://secure.phabricator.com/D17181
2017-01-11 13:56:34 -08:00
epriestley
ccff47682f Provide more useful guidance if a repository is clusterized into an existing multi-device cluster
Summary:
Fixes T12087. When transitioning into a clustered configuration for the first time, the documentation recommends using a one-device cluster as a transitional step.

However, installs may not do this for whatever reason, and we aren't as clear as we could be in warning about clusterizing directly into a multi-device cluster.

Roughly, when you do this, we end up believing that working copies exist on several different devices, but have no information about which copy or copies are up to date. //Usually// they all were already synchronized and are all up to date, but we can't make this assumption safely without risking data.

Instead, we err on the side of caution, and require a human to tell us which copy we should consider to be up-to-date, using `bin/repository thaw --promote`.

Test Plan:
```
$ ./bin/repository clusterize rLOCKS --service repos001.phacility.net
Service "repos001.phacility.net" is actively bound to more than one device
(local002.local, local001.phacility.net).

If you clusterize a repository onto this service it will be unclear which
devices have up-to-date copies of the repository. This leader/follower
ambiguity will freeze the repository. You may need to manually promote a
device to unfreeze it. See "Ambiguous Leaders" in the documentation for
discussion.

    Continue anyway? [y/N]
```

Read other changes.

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T12087

Differential Revision: https://secure.phabricator.com/D17169
2017-01-10 12:45:55 -08:00
epriestley
aa6e788f36 Mark "v3" API methods as stable; mark obsoleted methods as "Frozen"
Summary:
Ref T12074. The "v3" API methods (`*.search`, `*.edit`) are currently marked as "unstable", but they're pretty stable and essentially all new code should be using them.

Although these methods are seeing some changes, almost all changes are additive (support for new constraints or attachemnts) and do not break backward compatibility. We have no major, compatibility-breaking changes planned.

I don't want to mark the older methods "deprecated" yet since `arc` still uses a lot of them and there are some capabilities not yet available on the v3 methods, but introduce a new "frozen" status with pointers to the new methods.

Overall, this should gently push users toward the newer methods.

Test Plan: {F2325323}

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T12074

Differential Revision: https://secure.phabricator.com/D17158
2017-01-09 07:16:27 -08:00
epriestley
ef05bf335d Allow Harbormaster builds to publish to a different object
Summary:
Fixes T9276. Fixes T8650. The story so far:

  - We once published build updates to Revisions.
  - An unrelated fix (D10911) sent them to the Diffs instead of Revisions, which isn't useful, since you can't see a diff's timeline anywhere.
  - This also caused a race condition, where the RevisionEditor and DiffEditor would update the diff simultaneously (T8650).
  - The diff update was just disabled to avoid the race (part of D13441).
  - Instead, allow the updates to go somewhere else. In this case, we send commit updates to the commit but send diff updates to the revision so you can see 'em.
  - Since everything will be using the revision editor now, we should either get proper lock behavior for free or it should be easy to add if something whack is still happening.
  - Overall, this should pretty much put us back in working order like we were before D10911.

This behavior is undoubtedly refinable, but this should let us move forward.

Test Plan:
Saw a build failure in timeline:

{F2304575}

Reviewers: chad

Reviewed By: chad

Subscribers: PHID-OPKG-gm6ozazyms6q6i22gyam

Maniphest Tasks: T9276, T8650

Differential Revision: https://secure.phabricator.com/D17139
2017-01-04 13:46:39 -08:00
epriestley
4516109495 Survive hand-crafted Git commits which are missing timestamp information
Summary:
Fixes T12062. Like the commits from the year 3500, you can artificially build commits with no date information.

We could explicitly store these as `null` to fully respect the underlying datastore. However, I think it's very unlikely that these commits are intentional/meaningful or that this is valuable.

Additionally, "git show" interprets these commits as "Jan 1, 1970". Just store a `0` to mimic its behavior.

Test Plan:
  - Following the process in T11537#192019, artificially created a commit with //no// date information (I deleted all date information from the message).
  - Used `git show` / `git log --format ...` to inspect it: "Jan 1, 1970" on `git show`, no information at all on `%aD`, `%aT`, etc.
  - Pushed it.
  - Saw exception for trying to insert empty string into epoch colum from `bin/repository update`.
  - Applied patch.
  - Got a clean import.

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T12062

Differential Revision: https://secure.phabricator.com/D17136
2017-01-04 09:07:46 -08:00
Alex Vandiver
972604e0e5 Set TERM to prevent No entry for terminal type "unknown" messages during fetch
Summary:
Fetches cause output in `/var/tmp/phd/log/daemons.log` as
follows:
```
PHLOG: 'Unexpected output while updating repository "rREPONAME": No entry for terminal type "unknown";
using dumb terminal settings.
' at [/path/to/phabricator/src/applications/repository/daemon/PhabricatorRepositoryPullLocalDaemon.php:455]
```

These warnings come from PHP itself.  Silence these warnings by providing a
known value for `TERM` before shelling out to the PHP script.

See also D9744 (reverted in D11644) and T4990/T7119, which are a similar issue,
but in the pre-receive hooks, not the pull daemons.

Test Plan:
Enabled in production, observed errors to be silenced and
no SSH hangs

Reviewers: #blessed_reviewers, epriestley

Reviewed By: #blessed_reviewers, epriestley

Subscribers: epriestley

Differential Revision: https://secure.phabricator.com/D17100
2016-12-21 15:17:46 -08:00
epriestley
e6ddd6d0e9 Cache Almanac URIs for repositories
Summary:
Ref T11954. This is kind of complex and I'm not sure I want to actually land it, but it gives us a fairly good improvement for clustered repositories so I'm leaning toward moving forward.

When we make (or receive) clustered repository requests, we must first load a bunch of stuff out of Almanac to figure out where to send the request (or if we can handle the request ourselves).

This involves several round trip queries into Almanac (service, device, interfaces, bindings, properties) and generally is fairly slow/expensive. The actual data we get out of it is just a list of URIs.

Caching this would be very easy, except that invalidating the cache is difficult, since editing any binding, property, interface, or device may invalidate the cache for indirectly connected services and repositories.

To address this, introduce `PhabricatorCacheEngine`, which is an extensible engine like `PhabricatorDestructionEngine` for propagating cache updates. It has two modes:

  - Discover linked objects (that is: find related objects which may need to have caches invalidated).
  - Invalidate caches (that is: nuke any caches which need to be nuked).

Both modes are extensible, so third-party code can build repository-dependent caches or whatever. This may be overkill but even if Almanac is the only thing we use it for it feels like a fairly clean solution to the problem.

With `CacheEngine`, make any edit to Almanac stuff propagate up to the Service, and then from the Service to any linked Repositories.

Once we hit repositories, invalidate their caches when Almanac changes.

Test Plan:
  - Observed a 20-30ms performance improvement with `ab -n 100`.
  - (The main page making Conduit calls also gets a performance improvement, although that's a little trickier to measure directly.)
  - Added debugging code to the cache engine stuff to observe the linking and invalidation phases.
  - Made invalidation throw; verified that editing properties, bindings, etc, properly invalidates the cache of any indirectly linked repositories.

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T11954

Differential Revision: https://secure.phabricator.com/D17000
2016-12-06 09:14:45 -08:00
epriestley
fc1adf9875 Modernize UI for "Compare" in Diffusion
Summary: Ref T929. We've made some UI updates since D15330.

Test Plan: {F2079125}

Reviewers: avivey, chad

Reviewed By: chad

Maniphest Tasks: T929

Differential Revision: https://secure.phabricator.com/D16990
2016-12-05 18:10:11 -08:00
epriestley
005d8493b0 Pass GIT_ENVIRONMENTAL_MAGIC through to hook subprocesses to support Git 2.11.0
Summary:
Fixes T11940. In 2.11.0, Git has made a change so that newly-pushed changes are held in a temporary area until the hook accepts or rejects them.

This magic temporary area is only readable if the appropriate `GIT_ENVIRONMENTAL_MAGIC` variables are available. When executing `git` commands, pass them through from the calling context.

We're intentionally conservative about which variables we pass, and with good reason (see "httpoxy" in T11359). I think this continues to be the correct default behavior.

Test Plan:
  - Upgraded to Git 2.11.0.
  - Tried to push over SSH, got a hook error.
  - Applied patch.
  - Pulled and pushed over SSH.
  - Pulled and pushed over HTTP.

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T11940

Differential Revision: https://secure.phabricator.com/D16988
2016-12-05 12:45:30 -08:00
epriestley
bf1cbc2499 Don't let users pick "whatever.git" as a repository short name, make "." work
Summary:
Fixes T11902.

  - Periods now work in short names.
  - If you try to name something ".git", no dice.

Test Plan:
  - Tried to name something "quack.git", was politely rejected.
  - Named something "quack.notgit", and it worked fine.
  - Cloned Mercurial and Git repositories over SSH with ".git" and non-".git" variants without hitting any issues.

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T11902

Differential Revision: https://secure.phabricator.com/D16908
2016-11-21 15:47:20 -08:00
epriestley
e6c82c0994 Fix an issue with generating browser URIs in an SVN repository
Summary: Fixes T11866. This got converted wrong when doing the `/source/` stuff.

Test Plan: Browsed the root directory of a Subversion repository in Diffusion.

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T11866

Differential Revision: https://secure.phabricator.com/D16860
2016-11-15 07:15:20 -08:00
epriestley
6a62fca950 Support slightly prettier repository URIs in Diffusion
Summary: Fixes T4245. When a repository has a short name, use `/source/shortname/` as its primary URI.

Test Plan:
  - Cloned Git repositories from shortnames via HTTP and SSH.
  - Cloned Mercurial repositories from shortnames via HTTP and SSH.
  - Cloned Subversion repositories from shortnames via SSH.
  - Browsed Git, Mercurial and Subversion repositories.
  - Added and removed short names to various repositories.

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T4245

Differential Revision: https://secure.phabricator.com/D16851
2016-11-13 12:42:12 -08:00
epriestley
706c21375e Remove empty implementations of describeAutomaticCapabilities()
Summary:
This has been replaced by `PolicyCodex` after D16830. Also:

  - Rebuild Celerity map to fix grumpy unit test.
  - Fix one issue on the policy exception workflow to accommodate the new code.

Test Plan:
  - `arc unit --everything`
  - Viewed policy explanations.
  - Viewed policy errors.

Reviewers: chad

Reviewed By: chad

Subscribers: hach-que, PHID-OPKG-gm6ozazyms6q6i22gyam

Differential Revision: https://secure.phabricator.com/D16831
2016-11-09 15:24:22 -08:00
epriestley
5d1359d78f Fix an issue where repository message counts would never reset
Summary:
Fixes T11705. I did not realize that `ON DUPLICATE KEY UPDATE` was order-dependent, so the "reset" clause of this `IF(...)` never actually worked.

Reorder it so we check if we're changing the message type //first//, then actually change the message type.

This makes the count reset properly when a failing repository succeeds, or a working repository fails.

Test Plan:
  - On `master`, forced a working repository to fail a `bin/repository update`, saw the message change types (expected) but keep the old count (wrong!).
  - With this patch, repeated the process and saw the count reset properly.
  - Ran the patch, verified counts reset to 0.

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T11705

Differential Revision: https://secure.phabricator.com/D16623
2016-09-28 15:02:26 -07:00
epriestley
db2425b300 Do initial repository imports at a lower priority and finish importing commits before starting new ones
Summary:
Fixes T11677. This makes two minor adjustments to the repository import daemons:

  - The first step ("Message") now queues at a slightly-lower-than-default (for already-imported repositories) or very-low (for newly importing repositories) priority level.
  - The other steps now queue at "default" priority level. This is actually what they already did, but without this change their behavior would be to inherit the priority level of their parents.

This has two effects:

  - When adding new repositories to an existing install, they shouldn't block other things from happening anymore.
  - The daemons will tend to start one commit and run through all of its steps before starting another commit. This makes progress through the queue more even and predictable.
    - Before, they did ALL the message tasks, then ALL the change tasks, etc. This works fine but is confusing/uneven/less-predictable because each type of task takes a different amount of time.

Test Plan:
  - Added a new repository.
  - Saw all of its "message" steps queue at priority 4000.
  - Saw followups queue at priority 2000.
  - Saw progress generally "finish what you started" -- go through the queue one commit at a time, instead of one type of task at a time.

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T11677

Differential Revision: https://secure.phabricator.com/D16585
2016-09-21 16:41:01 -07:00
epriestley
d3280c406d When repositories hit pull errors, stop updating them as frequently
Summary:
Ref T11665. Currently, when a repository hits an error, we retry it after 15s. This is correct if the error was temporary/transient/config-related (e.g., bad network or administrator setting up credentials) but not so great if the error is long-lasting (completely bad authentication, invalid URI, etc), as it can pile up to a meaningful amount of unnecessary load over time.

Instead, record how many times in a row we've hit an error and adjust backoff behavior: first error is 15s, then 30s, 45s, etc.

Additionally, when computing the backoff for an empty repository, use the repository creation time as though it was the most recent commit. This is a good proxy which gives us reasonable backoff behavior.

This required removing the `CODE_WORKING` messages, since they would have reset the error count. We could restore them (as a different type of message), but I think they aren't particularly useful since cloning usually doesn't take too long and there's more status information avilable now than there was when this stuff was written.

Test Plan:
  - Ran `bin/phd debug pull`.
  - Saw sensible, increasing backoffs selected for repositories with errors.
  - Saw sensible backoffs selected for empty repositories.

Reviewers: chad

Maniphest Tasks: T11665

Differential Revision: https://secure.phabricator.com/D16575
2016-09-19 17:29:56 -07:00
epriestley
e41a64607e Retain repository update cooldowns across daemon restarts
Summary:
Ref T11665. Fixes T7865. When we restart the daemons, the repository pull daemon currently resets the cooldowns on all of its pulls. This can generate a burst of initial load when restarting a lot of instance daemons (as in the Phacility cluster), described in T7865. This smooths things out so that recent pulls are considered, and any repositories which were waiting keep waiting.

Somewhat counterintuitively, hosted repositories write `TYPE_FETCH` status messages, so this should work equally well for hosted and observed repositories.

This also paves the way for better backoff behavior on repository errors, described in T11665. The error backoff now uses the same logic that the standard backoff does. The next change will make backoff computation consider recent errors.

(This is technically too large for repositories which have encountered one error and have a low commit rate, but I'll fix that in the following change; this is just a checkpoint on the way there.)

Test Plan: Ran `bin/phd debug pull`, saw the daemon compute reasonable windows based on previous pull activity.

Reviewers: chad

Maniphest Tasks: T7865, T11665

Differential Revision: https://secure.phabricator.com/D16574
2016-09-19 16:49:34 -07:00
epriestley
7f6fa28363 When loading packages affected by a change to a particular path, ignore archived packages
Summary:
Ref T11650. Currently, we load packages and then discard the archived ones.

However, this gets "dominion" rules (where a more-general package gives up ownership if a more-specific package exists) wrong if the more-specific package is archived: we incorrectly give up ownership.

Instead, just ignore these packages completely when loading affected packages. This is slightly simpler.

(There are technically two pieces of code we have to do this for, which should be a single piece of code but which haven't yet been unified.)

Test Plan:
  - Created packages:
    - Package A, on "/" (strong dominion, autoreview).
    - Package B, on "/x/" (weak dominion, autoreview).
    - Package C, on "/x/y" (archived, autoreview).
  - Create a revision affecting "/x/y".
  - Saw correct path ownership in table of contents ("B", strongest package only).
  - Saw correct autoreview behavior (A + B).
  - (Prior to patch, in `master`, reproduced the problem behaviors described in T11650, with bad dominion rules and failure to autoreview B.)

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T11650

Differential Revision: https://secure.phabricator.com/D16564
2016-09-16 14:02:53 -07:00
epriestley
5504f37eb2 Add a summary view of all repository errors to the repository cluster screen
Summary: Ref T11559. This makes managing large numbers of repositories slightly easier.

Test Plan: {F1796119}

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T11559

Differential Revision: https://secure.phabricator.com/D16472
2016-08-30 09:21:12 -07:00
epriestley
c55de86f0e Return Diffusion diffs through Files, not directly over Conduit
Summary:
Fixes T10423. Ref T11524. This changes `diffusion.rawdiffquery` to return a file PHID instead of a blob of data.

This is better in general, but particularly better for huge diffs (as in T10423) and diffs with non-utf8 data (as in T10423).

Test Plan:
  - Used `bin/differential extract` to extract a latin1 diff, got a clean diff.
  - Used `bin/repository reparse --herald` to rerun herald on a latin1 diff, got a clean result.
  - Pushed latin1 diffs to test commit hooks.
  - Triggered the the too large / too slow logic.
  - Viewed latin1 diffs in Diffusion.
  - Used "blame past this change" in Diffusion to hit the `before` logic.

Reviewers: chad

Reviewed By: chad

Subscribers: eadler

Maniphest Tasks: T10423, T11524

Differential Revision: https://secure.phabricator.com/D16460
2016-08-27 09:11:03 -07:00
epriestley
d952dd5912 When importing Git repositories, treat out-of-range timestamps as the current time
Summary:
Fixes T11537. See that task for discussion.

Although we could accommodate these faithfully, it requires a huge migration and affects one repository on one install which was written with buggy tools.

At least for now, just replace out-of-32-bit-range epoch values with the current time, which is often somewhat close to the real value.

Test Plan:
  - Following the instructions in T11537, created commits in 40,000 AD.
  - Tried to import them, reproducing the "epoch" database issue.
  - Applied the patch.
  - Successfully imported future-commits, with some liberties around commit dates. Note that author date (not stored in an `epoch` column) is still shown faithfully:

{F1789302}

Reviewers: chad, avivey

Reviewed By: avivey

Maniphest Tasks: T11537

Differential Revision: https://secure.phabricator.com/D16456
2016-08-26 07:38:53 -07:00
epriestley
be235301d0 When commits have a "rewritten" hint, try to show that in handles in other applications
Summary:
Ref T11522. This tries to reduce the cost of rewriting a repository by making handles smarter about rewritten commits.

When a handle references an unreachable commit, try to load a rewrite hint for the commit. If we find one, change the handle name to "OldHash > NewHash" to provide a strong hint that the commit was rewritten and that copy/pasting the old hash (say, to the CLI) won't work.

I think this notation isn't totally self-evident, but users can click it to see the big error message on the page, and it's at least obvious that something weird is going on, which I think is the important part.

Some possible future work:

  - Not sure this ("Recycling Symbol") is the best symbol? Seems sort of reasonable but mabye there's a better one.
  - Putting this information directly on the hovercard could help explain what this means.

Test Plan: {F1780719}

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T11522

Differential Revision: https://secure.phabricator.com/D16437
2016-08-24 09:35:19 -07:00
epriestley
498fb33103 When a commit has a "rewritten" hint, show it in the UI instead of the generic "deleted" message
Summary:
Ref T11522. When a commit is no longer reachable from any branch/tag, we currently show a "this has been deleted" message.

Instead, go further: check if there is a "rewritten" hint pointing at a commit the current commit was rewritten into. If we find one, show a message about that instead.

(This isn't super pretty, just getting it working for now. I expect to revisit this UI in T9713 if we don't get to it before that.)

Test Plan: {F1780703}

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T11522

Differential Revision: https://secure.phabricator.com/D16436
2016-08-24 09:33:25 -07:00
epriestley
e4c4724afd Migrate the "badcommit" table to use the less-hacky "hint" mechanism
Summary: Ref T11522. This migrates any "badcommit" data (which probably only exists at Facebook and on 1-2 other installs in the wild) to the new "hint" table.

Test Plan:
  - Wrote some bad commit annotations to the badcommit table.
  - Viewed them in the web UI and used `bin/repository reparse --change ...` to reparse them. Saw "this is bad" messages.
  - Ran migration, verified that valid "badcommit" rows were successfully migrated to become "hint" rows.
  - Viewed the new web UI and re-parsed the change, saw "unreadable commit" messages.
  - Viewed a good commit; reparsed a good commit.

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T11522

Differential Revision: https://secure.phabricator.com/D16435
2016-08-24 09:32:59 -07:00
epriestley
8a4fbcd8c0 Provide a new "hint" table for weird commits (rewritten, unreadable)
Summary:
Ref T11522. This provides storage for tracking rewritten commits (new feature) and unreadable commits (existing feature, but really hacky).

This doesn't do anything yet, just adds a table and a CLI tool for updating it. I'll document the tool once it works. You just pipe in some JSON, but I need to document the format.

Test Plan:
  - Piped JSON for "none", "rewritten" and "unreadable" hints into `bin/repository hint`.
  - Examined the database to see that the table was written properly.
  - Tried to pipe bad JSON in, invalid hint types, etc. Got reasonable human-readable error messages.

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T11522

Differential Revision: https://secure.phabricator.com/D16434
2016-08-24 09:31:46 -07:00
epriestley
fcb20cb799 Add a "--force" flag to "bin/repository move-paths"
Summary:
Ref T7148. The automated export process runs this via daemon, which can't answer "Y" to this prompt. Let it "--force" instead.

(Some of my test instances didn't have any repositories, which is why I didn't catch this sooner.)

Test Plan: Ran `bin/repository move-paths --force ...`, saw change applied without a prompt.

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T7148

Differential Revision: https://secure.phabricator.com/D16426
2016-08-20 14:10:47 -07:00
epriestley
e8083ad63a Increase the storage size for commit summaries
Summary:
Fixes T11453. Currently, commit message summaries are limited to 80 bytes. This may only be 20-40 characters for CJK languages or langauges with Cyrillic script.

Increase storage size to 255, then truncate to the shorter of 255 bytes or 80 glyphs. This preserves the same behavior for latin languages, but is less tight for Russian, etc.

Some minor additional changes:

  - Provide a way to ask "how much data fits in this column?" so we don't have to duplicate column lengths across summary checks or UI errors like "title too long".
  - Remove the `text80` datatype, since no other columns use it and we have no use cases (or likely use cases) for it.

Test Plan:
  - Made a commit with a Cyrillic title, saw reasonable summarization in UI:

{F1757522}

  - Added and ran unit tests.
  - Grepped for removed `SUMMARY_MAX_LENGTH` constant.
  - Grepped for removed `text80` data type.

Reviewers: avivey, chad

Reviewed By: avivey

Subscribers: avivey

Maniphest Tasks: T11453

Differential Revision: https://secure.phabricator.com/D16385
2016-08-10 11:12:45 -07:00
epriestley
553c335fbd Ignore unreachable commits when testing if a repository has imported
Summary:
Fixes T11309. When checking if a repository was fully imported, we incorrectly allow unreachable, un-imported commits to prevent the repository from moving to "Imported".

This can happen if you delete branches from a repository while it is importing.

Instead, ignore unreachable commits when checking for remaining imports, and when reporting status via `bin/repository importing`.

Test Plan:
  - Stopped daemons.
  - Created a new repository and activated it.
  - Ran `bin/repository update Rxx`.
  - Deleted a branch in the repository.
  - Ran `bin/repository update Rxx`.
  - Ran daemons to flush queue.

Now:

  - Ran `bin/repository importing`. Old behavior: showed unreachable commits as importing. New behavior: does not show unreachable commits.
  - Ran `bin/repository update`. Old behavior: failed to move repository to "imported" status. New behavior: correctly moves repository to "imported" status.

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T11309

Differential Revision: https://secure.phabricator.com/D16269
2016-07-11 09:23:08 -07:00
epriestley
4068ee2a75 Make permanent worker failures more user-friendly
Summary:
Ref T11309. In that task, a user misunderstood two parts of this error:

  - They took "exception" to mean "unexpected failure", when it was intended to mean "rare circumstance".
  - They intereted the internal ID number of a commit to mean that Phabricator was malfunctioning.

Make the language of this condition more direct, explaining what the situation means in greater detail.

Additionally, we would previously re-throw this exception, which would make the daemon exit, wait a moment, and restart. This was normal and expected.

When //unexpected// failures occur, it's important do to this: it prevents a daemon failing in a loop from causing too many side effects (e.g., limit of 1 email per 5 seconds instead of thousands per second).

When expected, permanent failures occur, we do not need to do this: the task will not be retried. I just did it because it was slightly more consistent ("failures restart daemons") and we had few permanent failure types at the time.

We have more now, and restarting the daemons generates some additional logs which have the potential to confuse. Cycling the daemon also (intentionally) reduces the rate at which we process tasks, which can be bad for permanent failures like "deleted commit" because users can delete a huge number of commits and possibly clog up the queue with cycle-after-failure actions.

Test Plan:
Tried to process a deleted commit, saw a new message:

```
2016-07-11 9:30:22 AM [STDE] <VERB> PhabricatorTaskmasterDaemon Task 1428658 was cancelled: Commit "R55:6c46b7d0fb82a859ca3f87a95dc8dcceef8088c9" (with internal ID "282161") is no longer reachable from any branch, tag, or ref in this repository, so it will not be imported. This usually means that the branch the commit was on was deleted or overwritten.
```

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T11309

Differential Revision: https://secure.phabricator.com/D16268
2016-07-11 09:21:39 -07:00
Aviv Eyal
c56a4fce66 Only load refs that are actual commits
Summary: Fix T11301. Git is git.

Test Plan: tagged a file! run discover. no crash.

Reviewers: #blessed_reviewers, epriestley

Reviewed By: #blessed_reviewers, epriestley

Subscribers: Korvin

Maniphest Tasks: T11301

Differential Revision: https://secure.phabricator.com/D16261
2016-07-08 22:34:25 +00:00
epriestley
ef13b0e52b Expose repository "importing" flag via diffusion.repository.search
Summary: See Z2352#28072. Expose this flag to allow callers to take actions after an import finishes, which is generally reasonable.

Test Plan: Ran query from console, saw `isImporting` flag in results.

Reviewers: chad

Reviewed By: chad

Differential Revision: https://secure.phabricator.com/D16247
2016-07-06 19:18:39 -07:00
epriestley
5ffdb73273 Don't try to prune unreachable commits from repositories with no outdated refs
Summary:
Fixes T11269. The basic issue is that `git log` in an empty repository exits with an error message.

Prior to recent Git (2.6?), this message reads:

> fatal: bad default revision 'HEAD'

This message was somewhat recently changed by <ce11360467>. After that, it reads:

> fatal: your current branch 'master' does not have any commits yet

This change isn't //technically// a //complete// fix because you could still hit this issue like this:

  - Create an empty repository.
  - Push some stuff to `master`.
  - Delete `master`.

However, this is very rare and even in this case the repository will fix itself once you push something again. We can try to fix that if any users ever actually hit it.

Test Plan:
  - Created a new empty Git repository.
  - Ran `bin/repository update Rxx`.
  - Before patch: "git log" error because of the empty repository.
  - After patch: clean update.
  - Also ran `repository update` on a non-empty repository.

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T11269

Differential Revision: https://secure.phabricator.com/D16234
2016-07-05 09:09:46 -07:00
epriestley
25cc90d632 Inch toward using ApplicationSearch to power related objects
Summary:
Ref T4788. Fixes T9232. This moves the "search for stuff to attach to this object" flow away from hard-coding and legacy constants and toward something more modular and flexible.

It also adds an "Edit Commits..." action to Maniphest, resolving T9232. The behavior of the search for commits isn't great right now, but it will improve once these use real ApplicationSearch.

Test Plan: Edited a tasks' related commits, mocks, tasks, etc.

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T4788, T9232

Differential Revision: https://secure.phabricator.com/D16189
2016-06-29 11:22:29 -07:00
epriestley
89f9f97159 Provide basic support for Subversion revprops
Summary:
Ref T11208. See that task for a more detailed description of revprops.

This allows revprop changes in a hosted Subversion repository if the repository has the "allow dangerous changes" flag set.

In the future, we could expand this into real Herald support, but the only use case we have for now is letting `svnsync` work.

Test Plan:
Edited revprops with `svn propset --revprop -r 2 propkey propvalue repositoryuri`:

  - Tried before patch, got a "configure a commit hook" error.
  - Tried after patch, got a "dangerous change" error.
  - Allowed dangerous changes.
  - Did a revprop edit.
  - Prevented dangerous changes.
  - Got an error again.
  - Made a normal commit to an SVN repository.

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T11208

Differential Revision: https://secure.phabricator.com/D16174
2016-06-24 13:43:32 -07:00
epriestley
9a2c2505a0 Handle tag tags properly in discovery
Summary:
Fixes T11180. In Git, it's possible to tag a tag (????). When you do, we try to log the tag-object, which automatically resolves to the commit and fails.

Just skip these. If "A" points at "B" which points at "C", it's fine to ignore "A" and "B" since we'll get the same stuff when we process "C".

Test Plan:
  - Tagged a tag.
  - Pushed it.
  - Discovered it.
  - Before patch: got exception similar to the one in T11180.
  - After patch: got tag-tag skipped. Also got slightly better error messages.

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T11180

Differential Revision: https://secure.phabricator.com/D16149
2016-06-20 11:10:02 -07:00
epriestley
8032a14223 Mark unreachable commits handles as "closed"
Summary:
Ref T9028. Mostly, this gives them a strikethru style.

(I think this is probably the right definition of "closed" for commits. Another definition might be "audited", but I don't think completing audits really "closes" a commit.)

Test Plan: {F1689662}

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T9028

Differential Revision: https://secure.phabricator.com/D16135
2016-06-16 13:01:09 -07:00
epriestley
7c8f9d7ba2 Don't track "phabricator/" staging area tags
Summary: Ref T9028. Ref T6878. This rule should probably be refined in the long term, but for now just ignore "phabricator/diff/12424" and similar staging area tags.

Test Plan: Ran `bin/repository discover --verbose` on a repository with staging area refs, saw Phabricator ignore those refs as untracked.

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T6878, T9028

Differential Revision: https://secure.phabricator.com/D16134
2016-06-16 11:22:02 -07:00
epriestley
1c63ac6a3a When a ref is moved or deleted, put it on a list; later, check for reachability
Summary:
Ref T9028. This allows us to detect when commits are unreachable:

  - When a ref (tag, branch, etc) is moved or deleted, store the old thing it pointed at in a list.
  - After discovery, go through the list and check if all the stuff on it is still reachable.
  - If something isn't, try to follow its ancestors back until we find something that is reachable.
  - Then, mark everything we found as unreachable.
  - Finally, rebuild the repository summary table to correct the commit count.

Test Plan:
  - Deleted a ref, ran `pull` + `refs`, saw oldref in database.
  - Ran `discover`, saw it process the oldref, mark the unreachable commit, and update the summary table.
  - Visited commit page, saw it properly marked.

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T9028

Differential Revision: https://secure.phabricator.com/D16133
2016-06-16 11:21:38 -07:00
epriestley
02d7bb8604 Add "bin/repository mark-reachable" for fixing commit reachability flags
Summary:
Ref T9028. This corrects the reachability of existing commits in a repository.

In particular, it can be used to mark deleted commits as unreachable.

Test Plan:
  - Ran it on a bad repository, with bad args, etc.
  - Ran it on a clean repo, got no changes.
  - Marked a reachable commit as unreachable, ran script, got it marked reachable.
  - Started deleting tags and branches from the local working copy while running the script, saw greater parts of the repository get marked unreachable.
  - Pulled repository again, everything automatically revived.

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T9028

Differential Revision: https://secure.phabricator.com/D16132
2016-06-16 11:21:17 -07:00
epriestley
77ee518d88 Make daemons ignore "Unreachable" commits and avoid duplicate work
Summary:
Ref T9028. This improves the daemon behavior for unreachable commits. There is still no way for commits to become marked unreachable on their own.

  - When a daemon encounters an unreachable commit, fail permanently.
  - When we revive a commit, queue new daemons to process it (since some of the daemons might have failed permanently the first time around).
  - Before doing a step on a commit, check if the step has already been done and skip it if it has. This can't happen normally, but will soon be possible if a commit is repeatedly deleted and revived very quickly.
  - Steps queued with `bin/repository reparse ...` still execute normally.

Test Plan:
  - Used `bin/repository reparse` to run every step, verified they all mark the commit with the proper flag.
  - Faked the `reparse` exception in the "skip step" code, used `repository reparse` to skip every step.
  - Marked a commit as unreachable, ran `discover`, saw daemons queue for it.
  - Ran daemons with `bin/worker execute --id ...`, saw them all skip + queue the next step.
  - Marked a commit as unreachable, ran `bin/repository reparse` on it, got permanent failures immediately for each step.

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T9028

Differential Revision: https://secure.phabricator.com/D16131
2016-06-16 11:20:56 -07:00
epriestley
ec89c7d63e Add an "Unreachable" flag for commits and revive them during discovery
Summary:
Ref T9028. This is the easy part of dealing with deleted commits:

  - Add a flag for unreachable commits (nothing sets this flag yet).
  - Ignore unreachable commits when querying for known commits during discovery, so we pretend they do not exist.
  - When recording a commit, try just reviving an existing unreachable commit first. If that works, bail out.

Test Plan:
  - Artificially marked a commit as unreachable with raw SQL.
  - Verified it said "deleted: unreachable" in the UI.
  - Ran `repository discover --trace --verbose`.
  - Saw the discovery process ignore the commit when filling the cache.
  - Saw the discovery process revive the commit instead of trying to record it again.
  - Web UI now shows the commit as normal.
  - Running `repository discover` again doesn't make any further changes.

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T9028

Differential Revision: https://secure.phabricator.com/D16130
2016-06-16 11:20:37 -07:00
epriestley
2949905c04 Fetch and discover all Git ref types, not just branches
Summary:
Ref T9028. Fixes T6878. Currently, we only fetch and discover branches. This is fine 99% of the time but sometimes commits are pushed to just a tag, e.g.:

```
git checkout <some hash>
nano file.c
git commit -am '...'
git tag wild-wild-west
git push origin wild-wild-west
```

Through a similar process, commits can also be pushed to some arbitrary named ref (we do this for staging areas).

With the current rules, we don't fetch tag refs and won't discover these commits.

Change the rules so:

  - we fetch all refs; and
  - we discover ancestors of all refs.

Autoclose rules for tags and arbitrary refs are just hard-coded for now. We might make these more flexible in the future, or we might do forks instead, or maybe we'll have to do both.

Test Plan:
Pushed a commit to a tag ONLY (`vegetable1`).

<cf508b8de6>

On `master`, prior to the change:

  - Used `update` + `refs` + `discover`.
  - Verified tag was not fetched with `git for-each-ref` in local working copy and the web UI.
  - Verified commit was not discovered using the web UI.

With this patch applied:

  - Used `update`, saw a `refs/*` fetch instead of a `refs/heads/*` fetch.
  - Used `git for-each-ref` to verify that tag fetched.
  - Used `repository refs`.
  - Saw new tag appear in the tags list in the web UI.
  - Saw new refcursor appear in refcursor table.
  - Used `repository discover --verbose` and examine refs for sanity.
  - Saw commit row appear in database.
  - Saw commit skeleton appear in web UI.
  - Ran `bin/phd debug task`.
  - Saw commit fully parse.

{F1689319}

Reviewers: chad

Reviewed By: chad

Subscribers: avivey

Maniphest Tasks: T6878, T9028

Differential Revision: https://secure.phabricator.com/D16129
2016-06-16 11:20:05 -07:00
epriestley
bba53205de Remove all uses of PhutilGitURI in Phabricator
Summary:
Ref T11137. This class is removed in D16099. Depends on D16099.

`PhutilURI` now attempts to "just work" with Git-style URIs, so at least in theory we can just delete all of this code and pretend it does not exist.

(I've left "Display URI" and "Effective URI" as distinct, at least for now, because I think the distinction may be relevant in the future even though it isn't right now, and to keep this diff small, although I may go remove one after I think about this for a bit.)

Test Plan:
  - Created a new Git repository with a Git URI.
  - Pulled/updated it, which now works correctly and should resolve the original issue in T11137.
  - Verified that daemons now align the origin to a Git-style URI with a relative path, which should resolve the original issue in T11004.
  - Grepped for `PhutilGitURI`.
  - Also grepped in `arcanist/`, but found no matches, so no patch for that.
  - Checked display/conduit URIs.

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T11137

Differential Revision: https://secure.phabricator.com/D16100
2016-06-13 07:20:58 -07:00
epriestley
55a698a28a Use HTTPEngineExtension proxy for git HTTP operations
Summary: Ref T10227. When we perform `git` http operations (fetch, mirror) check if we should use a proxy; if we should, set `http_proxy` or `https_proxy` in the environment to make `git` have `curl` use it.

Test Plan:
  - Configured a proxy extension to run stuff through a local instance of Charles.
  - Ran `repository pull` and `repository mirror`.
  - Saw `git` HTTP requests route through the proxy.

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T10227

Differential Revision: https://secure.phabricator.com/D16092
2016-06-09 12:17:10 -07:00
epriestley
24acac117b Consider identifier types when sorting clone URIs
Summary:
Fixes T11082. Currently, the `/123/` and `/CALLSIGN/` versions of the URI get the same score.

Also the scores are backwards.

Test Plan:
  - Added `getPublicCloneURI()` output to repository listing.
  - Before patch, saw a repository with a callsign list a less-preferred ID-based URI.
  - After patch, saw the repository list the more-preferred callsign-based URI.

Reviewers: chad

Reviewed By: chad

Subscribers: nikolay.metchev

Maniphest Tasks: T11082

Differential Revision: https://secure.phabricator.com/D16008
2016-06-02 06:57:43 -07:00
epriestley
f5f784f4c1 Version clustered, observed repositories in a reasonable way (by largest discovered HEAD)
Summary:
Ref T4292. For hosted, clustered repositories we have a good way to increment the internal version of the repository: every time a user pushes something, we increment the version by 1.

We don't have a great way to do this for observed/remote repositories because when we `git fetch` we might get nothing, or we might get some changes, and we can't easily tell //what// changes we got.

For example, if we see that another node is at "version 97", and we do a fetch and see some changes, we don't know if we're in sync with them (i.e., also at "version 97") or ahead of them (at "version 98").

This implements a simple way to version an observed repository:

  - Take the head of every branch/tag.
  - Look them up.
  - Pick the biggest internal ID number.

This will work //except// when branches are deleted, which could cause the version to go backward if the "biggest commit" is the one that was deleted. This should be OK, since it's rare and the effects are minor and the repository will "self-heal" on the next actual push.

Test Plan:
  - Created an observed repository.
  - Ran `bin/repository update` and observed a sensible version number appear in the version table.
  - Pushed to the remote, did another update, saw a sensible update.
  - Did an update with no push, saw no effect on version number.
  - Toggled repository to hosted, saw the version reset.
  - Simulated read traffic to out-of-sync node, saw it do a remote fetch.

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T4292

Differential Revision: https://secure.phabricator.com/D15986
2016-05-30 09:53:01 -07:00
epriestley
189600e411 Allow broader HTTP access to public repositories, respect nonstandard Phabricator HTTP port when generating repository URIs
Summary:
Fixes T11030. Fixes T11032.

  - Allow HTTP access to "Public" repositories even if `diffusion.allow-http-auth` is disabled.
  - If you run Phabricator on an unusual port (???) use that port as the default when generating HTTP URIs.

Test Plan:
  - Faked `phabricator.base-uri` to an unusual port, saw repository HTTP URI generate with an unusual port.
  - Disabled `diffusion.allow-http-auth`, confirmed that toggling view policy between "public" and "users" activated or deactivated HTTP clone URI.

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T11030, T11032

Differential Revision: https://secure.phabricator.com/D15973
2016-05-25 09:07:00 -07:00
epriestley
de1a30efc7 Improve audit behavior for "uninteresting" auditors
Summary:
Ref T10939. Fixes T10174. We can currently trigger "uninteresting" auditors in two ways:

  - Packages with auditing disabled ("NONE" audits).
  - Packages with auditing enabled, but they don't need an audit (e.g., author is a pacakge owner; "NOT REQUIRED" audits).

These audits aren't interesting (we only write them so we can list "commits in this package" from other UIs) but right now they take up the audit slot. In particular:

  - They show in the UI, but are generally useless/confusing nowadays. The actual table of contents does a better job of just showing "which packages do these paths belong to" now, and shows all packages for each path.
  - They block Herald from adding real auditors.

Change this:

  - Don't show uninteresting auditors.
  - Let Herald upgrade uninteresting auditors into real auditors.

Test Plan:
  - Ran `bin/repository reparse --owners <commit> --force`, and `--herald` to trigger Owners and Herald rules.
  - With a package with auditing disabled, triggered a "None" audit and saw it no longer appear in the UI with the patch applied.
  - With a package with auditing disabled, added a Herald rule to trigger an audit. With the patch, saw it go through and upgrade the audit to "Audit Required".

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T10174, T10939

Differential Revision: https://secure.phabricator.com/D15940
2016-05-17 13:47:33 -07:00
epriestley
9c24798e64 Update Owners auditing rules for multiple reviewers
Summary:
Ref T10939. Fixes T10181. This slightly simplifies, then documents the auditing rules, which haven't been updated for a while. In particular:

  - If an owner authored the change, never audit.
  - Examine all reviewers to determine reviewer audit status, not just the first reviewer.
  - Simplify some of the loading code a bit.

Test Plan:
  - Ran `bin/repository reparse --owners <commit> --force` to trigger this stuff.
  - Verified that the web UI did reasonable things with resulting audits.
  - Read documentation.

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T10181, T10939

Differential Revision: https://secure.phabricator.com/D15939
2016-05-17 13:46:06 -07:00
epriestley
e5f2ccc57f Don't trigger audits for archived packages
Summary:
Ref T10939. This is just a bug. I thought this was what was described in T10174 but that's actually talking about something completely different.

Also make a `<select />` slightly easier to use.

Test Plan:
  - Created a package with auditing enabled.
  - Pushed a change.
  - Saw audit trigger.
  - Disabled the package, pushed a change.
    - Before patch: saw audit trigger improperly.
    - After patch: restarted daemons, then saw audit correctly not trigger.

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T10939

Differential Revision: https://secure.phabricator.com/D15907
2016-05-13 06:49:42 -07:00
epriestley
1c73ad6a1b Make repository daemon locks more granular and forgiving
Summary:
Ref T4292. Currently, we hold one big lock around the whole `bin/repository update` workflow.

When running multiple daemons on different hosts, this lock can end up being contentious. In particular, we'll hold it during `git fetch` on every host globally, even though it's only useful to hold it locally per-device (that is, it's fine/good/expected if `repo001` and `repo002` happen to be fetching from a repository they are observing at the same time).

Instead, split it into two locks:

  - One lock is scoped to the current device, and held during pull (usually `git fetch`). This just keeps multiple daemons accidentally running on the same host from making a mess when trying to initialize or update a working copy.
  - One lock is scoped globally, and held during discovery. This makes sure daemons on different hosts don't step on each other when updating the database.

If we fail to acquire either lock, assume some other process is legitimately doing the work and bail more quietly instead of fataling. In approximately 100% of cases where users have hit this lock contention, that was the case: some other daemon was running somewhere doing the work and the error didn't actually represent an issue.

If there's an actual problem, we still raise a diagnostically useful message if you run `bin/repository update` manually, so there are still tools to figure out that something is hung or whatever.

Test Plan:
  - Ran `bin/repository update`, `pull`, `discover`.
  - Added `sleep(5)`, forced processes to contend, got lock exceptions and graceful exit with diagnostic message.

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T4292

Differential Revision: https://secure.phabricator.com/D15903
2016-05-13 05:17:27 -07:00
epriestley
984dff0ae3 Provide a more consistent, mostly relaxed severity for updating non-cluster repositories on cluster devices
Summary:
Fixes T10940. Two issues currently:

First, `PullLocal` deamon refuses to update non-cluster repositories on cluster devices. However, this is surprising/confusing/bad because as soon as you enroll a repository host in the cluster, most of the repositories on it stop working until you `clusterize` them. This is especially confusing because the documentation gives you a very nice, gradual walkthrough about going through things slowly and being able to check your work at every step, but we really drop you off a bit of a cliff here. The workflow implied by the documentation is a desirable one.

This operation is generally only unsafe/problematic if the daemon would be creating a //new// working copy. If a working copy already exists, we can reasonably guess that it's almost certainly because you've enrolled a previously un-clustered host into a new cluster. This allows the nice, gradual workflow the documentation describes to proceed as expected, without any weird surprises.

Instead of refusing to update these repositories, only refuse to update them if updating would create a new working copy. This should make transitioning much smoother without any meaningful reduction in safety.

Second, the lower-level `bin/repository update`, `refs`, `mirror`, etc., commands don't apply this same check. However, these commands are potentially just as dangerous. Use the same code to do a similar check there, making sure we only operate on repositories that are either expected to be on the current device, or which already exist here.

Test Plan:
  - Ran `bin/phd debug pull`, saw diagnostic information choose to update most repositories (including some non-cluster repositories) but properly skip non-cluster repositories that do not exist locally.
  - Ran `bin/repository update`, etc., saw the command apply consistent rules to the rules applied by `PullLocal` and refuse to update non-local repositories it would need to create.

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T10940

Differential Revision: https://secure.phabricator.com/D15902
2016-05-12 15:51:14 -07:00
epriestley
5587d97a7f Tailor Diffusion protocol rules slightly
Summary: Fixes T10948. Ref T10923. Make these rules a little more thorough and document their behavior.

Test Plan: Looked at Diffusion clone URIs.

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T10923, T10948

Differential Revision: https://secure.phabricator.com/D15887
2016-05-11 07:18:09 -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
576b73dc53 Index all repository URIs, not just the "primary" repository URI
Summary:
Ref T10923. When regenerating the URI index for a repository, index every URI.

  - Also, make the index slightly stricter (domain + path instead of just path). Excluding the domain made more sense when we were generating only first-party URIs.
  - Make the index smarter about `/diffusion/123/` URIs.
  - Show normalized URIs in `diffusion.repository.search` results.

Test Plan:
  - Ran migration.
  - Verified sensible-looking results in database.
  - Searched for a repository URI by first-party clone URI.
  - Searched for a repository URI by mirror URI.
  - Used `diffusion.repository.search` to get information about repository URIs.

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T10923

Differential Revision: https://secure.phabricator.com/D15876
2016-05-11 06:36:06 -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
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
95c284b95e Fix a Harbormaster build issue with new URI code
Summary: Ref T10748. We're returning a `PhabricatorRepositoryURI` here but the code expects an actual `PhutilURI`.

Test Plan:
This should clear this up in production:

```
Daemon 180278 STDE [Wed, 04 May 2016 23:25:16 +0000] [2016-05-04 23:25:16] EXCEPTION: (PhutilProxyException) Error while executing Task ID 1677075. {>} (RuntimeException) Object of class PhabricatorRepositoryURI could not be converted to string at [<phutil>/src/error/PhutilErrorHandler.php:205]
Daemon 180278 STDE [Wed, 04 May 2016 23:25:16 +0000] arcanist(head=master, ref.master=c58f1b9a2507), libcore(), phabricator(head=master, ref.master=29d1115037b8), phutil(head=master, ref.master=0709cd5cfc26), services(head=master, ref.master=04ae8c8f8e3b)
Daemon 180278 STDE [Wed, 04 May 2016 23:25:16 +0000]   #0 <#2> PhutilErrorHandler::handleError(integer, string, string, integer, array) called at [<phabricator>/src/applications/repository/storage/PhabricatorRepository.php:1200]
Daemon 180278 STDE [Wed, 04 May 2016 23:25:16 +0000]   #1 <#2> PhabricatorRepository::getPublicCloneURI() called at [<phabricator>/src/applications/repository/storage/PhabricatorRepositoryCommit.php:395]
```

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T10748

Differential Revision: https://secure.phabricator.com/D15844
2016-05-04 16:46:22 -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
34e870819c Remove "bin/repository edit" workflow
Summary:
Ref T10748. In D14250#158181, I accepted this conditional on removing it once Conduit could handle it.

Conduit can now handle it, or at least will be able to as soon as T10748 cuts over.

Test Plan: Grepped for `repository edit`.

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T10748

Differential Revision: https://secure.phabricator.com/D15839
2016-05-04 16:10:49 -07:00
epriestley
b8b700c179 Remove "repository.create" Conduit API method
Summary:
Ref T10748. This has had many problems for a long time, can't create hosted repositories, can't create cluster repositories, etc. It is obsoleted by `diffusion.repository.edit`. Remove it.

(Right now `diffusion.repository.edit` isn't a strict replacement, but it will be as soon as the URI stuff cuts over.)

Test Plan: Grepped for `repository.create`.

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T10748

Differential Revision: https://secure.phabricator.com/D15838
2016-05-04 16:10:19 -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
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
128995f1ac Document all the hypothetical URI features we plan to support soon
Summary: Ref T10748. Ref T10366. This documents how everything is planned to work shortly.

Test Plan: Read documentation.

Reviewers: chad

Reviewed By: chad

Subscribers: eadler, scode

Maniphest Tasks: T10366, T10748

Differential Revision: https://secure.phabricator.com/D15817
2016-04-29 09:24:10 -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
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
dc3a13c5e8 Add bin/repository clusterize and document setup and migration for clusters
Summary: Ref T4292. This provides at least some sort of hint about how to set up cluster repositories.

Test Plan:
  - Read documentation.
  - Ran `bin/repository clusterize` to add + remove clusters.

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T4292

Differential Revision: https://secure.phabricator.com/D15798
2016-04-26 10:07:17 -07:00
epriestley
550a82d438 Fix two minor formatting issues with bin/repository move-paths
Summary: This gets over-escaped instead of bolded right now, but I only ever hit it when exporting/importing and never both cleaning it up.

Test Plan: Ran `bin/repository move-paths`, saw bolded "Move" instead of ANSI escape sequences.

Reviewers: chad

Reviewed By: chad

Differential Revision: https://secure.phabricator.com/D15797
2016-04-25 12:29:15 -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
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
00885edc47 Don't try to synchronize repositories with no working copy
Summary:
Ref T4292. Sometimes, we may not have a working copy for a repository. The easiest way to get into this condition is to deactivate a repository.

We could try to clone + fetch in this case, but that's kind of complex, and there's an easy command that administrators can run manually. For now, just tell them to do that.

This affects the inactive repositories on `secure`, like rGITCOINS.

Test Plan: Removed working copy, got message.

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T4292

Differential Revision: https://secure.phabricator.com/D15786
2016-04-22 08:12:19 -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
bd4fb3c9fa Implement bin/repository thaw for unfreezing cluster repositories
Summary:
Ref T10751. Add support tooling for manually prying your way out of trouble if disaster strikes.

Refine documentation, try to refer to devices as "devices" more consistently instead of sometimes calling them "nodes".

Test Plan: Promoted and demoted repository devices with `bin/repository thaw`.

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T10751

Differential Revision: https://secure.phabricator.com/D15768
2016-04-20 10:45:58 -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
287e761f19 Make repository synchronization safer when leaders are ambiguous
Summary:
Ref T4292. Right now, repository versions only get marked when a write happens.

This potentially creates a problem: if I pushed all the sync code to `secure` and enabled `secure002` as a repository host, the daemons would create empty copies of all the repositories on that host.

Usually, this would be fine. Most repositories have already received a write on `secure001`, so that working copy has a verison and is a leader.

However, when a write happened to a rarely-used repository (say, rKEYSTORE) that hadn't received any write recently, it might be sent to `secure002` randomly. Now, we'd try to figure out if `secure002` has the most up-to-date copy of the repository or not.

We wouldn't be able to, since we don't have any information about which node has the data on it, since we never got a write before. The old code could guess wrong and decide that `secure002` is a leader, then accept the write. Since this would bump the version on `secure002`, that would //make// it an authoritative leader, and `secure001` would synchronize from it passively (or on the next read or write), which would potentially destroy data.

Instead:

  - Refuse to continue in situations like this.
  - When a repository is on exactly one device, mark it as a leader with version "0".
  - When a repository is created into a cluster service, mark its version as "0" on all devices (they're all leaders, since the repository is empty).

This should mean that we won't lose data no matter how much weird stuff we run into.

Test Plan:
  - In single-node mode, used `repository update` to verify that `0` was written properly.
  - With multiple nodes, used `repository update` to verify that we refuse to continue.
  - Created a new repository, verified versions were initialized correctly.

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T4292

Differential Revision: https://secure.phabricator.com/D15761
2016-04-19 13:07:02 -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
0db6eaca41 Consolidate handling of SSH usernames
Summary:
Ref T4292. This consolidates code for figuring out which user we should connect to hosts with.

Also narrows a lock window.

Test Plan: Browsed Diffusion, pulled and pushed through an SSH proxy.

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T4292

Differential Revision: https://secure.phabricator.com/D15754
2016-04-19 13:04:04 -07:00