Summary:
Ref T1049. Generally, it's useful to separate test/trial/manual runs from production/automatic runs.
For example, you don't want to email a bunch of people that the build is broken just because you messed something up when writing a new build plan. You'd rather try it first, then promote it into production once you have some good runs.
Similarly, test runs generally should not affect the outside world, etc. Finally, some build steps (like "wait for other buildables") may want to behave differently when run in production/automation than when run in a testing environment (where they should probably continue immediately).
So, formalize the distinction between automatic buildables (those created passively by the system in response to events) and manual buildables (those created explicitly by users). Add filtering, and stop the automated parts of the system from interacting with the manual parts (for example, we won't show manual results on revisions).
This also moves the "Apply Build Plan" to a third, new home: instead of the sidebar or Buildables, it's now on plans. I think this generally makes more sense given how things have developed. Broadly, this improves isolation of test environments.
Test Plan: Created some builds, browsed around, used filters, etc.
Reviewers: btrahan
Reviewed By: btrahan
CC: aran
Maniphest Tasks: T1049
Differential Revision: https://secure.phabricator.com/D7824
Summary: Ref T4195. Ref T2783. We have an old-school implementation of this; move it into a LowLevel query and make callers all run through Conduit. I need the LowLevel query for hooks, to implement an "is merge commit" Herald rule.
Test Plan:
- Ran query via Conduit for SVN, Mercurial, Git.
- Parsed a commit which closed a revision, attach/closed worked correctly.
- Browsed Diffusion.
Reviewers: btrahan
Reviewed By: btrahan
CC: aran
Maniphest Tasks: T4195, T2783
Differential Revision: https://secure.phabricator.com/D7808
Summary: Ref T4195. I need to query commit metadata to figure out which revision a commit is associated with. Move this out of the MessageParser so the code can be called from the HookEngine.
Test Plan: Used `reparse.php` to reparse a variety of SVN, Mercurial and Git commits. Used `var_dump()` to verify sensible fields were returned.
Reviewers: btrahan
Reviewed By: btrahan
CC: aran
Maniphest Tasks: T4195
Differential Revision: https://secure.phabricator.com/D7805
Summary: Ref T4195. I need this for the Herald pre-commit rules, and it generally simplifies things.
Test Plan: Used `reparse.php` plus `var_dump()` to inspect refs in Git, Mercurial and SVN repos. They all looked correct and reparsed correctly.
Reviewers: btrahan
Reviewed By: btrahan
CC: aran
Maniphest Tasks: T4195
Differential Revision: https://secure.phabricator.com/D7804
Summary:
Ref T4195. To implement the "Author" and "Committer" rules, I need to resolve author/committer strings into Phabricator users.
The code to do this is currently buried in the daemons. Extract it into a standalone query.
I also added `bin/repository lookup-users <commit>` to test this query, both to improve confidence I'm getting this right and to provide a diagnostic command for users, since there's occasionally some confusion over how author/committer strings resolve into valid users.
Test Plan:
I tested this using `bin/repository lookup-users` and `reparse.php --message` on Git, Mercurial and SVN commits. Here's the `lookup-users` output:
>>> orbital ~/devtools/phabricator $ ./bin/repository lookup-users rINIS3
Examining commit rINIS3...
Raw author string: epriestley
Phabricator user: epriestley (Evan Priestley )
Raw committer string: null
>>> orbital ~/devtools/phabricator $ ./bin/repository lookup-users rPOEMS165b6c54f487c8
Examining commit rPOEMS165b6c54f487...
Raw author string: epriestley <git@epriestley.com>
Phabricator user: epriestley (Evan Priestley )
Raw committer string: epriestley <git@epriestley.com>
Phabricator user: epriestley (Evan Priestley )
>>> orbital ~/devtools/phabricator $ ./bin/repository lookup-users rINIH6d24c1aee7741e
Examining commit rINIH6d24c1aee774...
Raw author string: epriestley <hg@yghe.net>
Phabricator user: epriestley (Evan Priestley )
Raw committer string: null
>>> orbital ~/devtools/phabricator $
The `reparse.php` output was similar, and all VCSes resolved authors correctly.
Reviewers: btrahan
Reviewed By: btrahan
CC: aran
Maniphest Tasks: T1731, T4195
Differential Revision: https://secure.phabricator.com/D7801
Summary: Ref T4195. Even though we use `svnlook` in the hook itself, I need this query elsewhere, so provide it and merge the classes into one which does the right thing.
Test Plan:
- Used `reparse.php` to reparse messages for Git, SVN and Mercurial commits, using `var_dump()` to examine the commit refs for sanity.
- Used `reparse.php` to reparse changes for an SVN commit.
Reviewers: btrahan
Reviewed By: btrahan
CC: aran
Maniphest Tasks: T4195
Differential Revision: https://secure.phabricator.com/D7800
Summary: Ref T4195. Same as D7793, but for mercurial. (As usual, SVN needs some goofy nonsense instead, so the next diff will just make this field work.)
Test Plan: Ran `reparse.php` on Git and Mercurial commits, var_dump'd the output and it looked correct.
Reviewers: btrahan
Reviewed By: btrahan
CC: aran
Maniphest Tasks: T4195
Differential Revision: https://secure.phabricator.com/D7795
Summary: Ref T4195. I need to issue this command from the pre-commit hook to get commit bodies for hooks.
Test Plan: Ran `reparse.php --message --trace` and dumped the $ref, which looked correct.
Reviewers: btrahan
Reviewed By: btrahan
CC: aran
Maniphest Tasks: T4195
Differential Revision: https://secure.phabricator.com/D7793
Summary: Ref T4195. This doesn't provide any interesting fields yet (content, affected paths, commit message) but fires the hook correctly.
Test Plan: Added a blocking hook and saw it fire.
Reviewers: btrahan
Reviewed By: btrahan
CC: aran
Maniphest Tasks: T4195
Differential Revision: https://secure.phabricator.com/D7789
Summary: Allow Herald rules to be referred to with `H123`, etc., like other object types are. Herald rules now have proper PHIDs and an increasingly prominent role in triggering application actions. Although I suspect users will rarely use `H123` in Remarkup to mention rules, this can simplify some of the interfaces which relate objects across systems.
Test Plan: Looked at various interfaces and saw `H123` names. Mentioned `H123` in remarkup.
Reviewers: btrahan
Reviewed By: btrahan
CC: aran
Differential Revision: https://secure.phabricator.com/D7786
Summary:
A few users have hit cases where Herald transcripts of large commits exceed the MySQL packet limit, because one of the fields in the transcript is an enomrous textual diff.
There's no value in saving these huge amounts of data. Transcripts are useful for understanding the action of Herald rules, but can be reconstructed later. Instead of saving all of the data, limit each field to 4KB of data.
For strings, we just truncate at 4KB. For arrays, we truncate after 4KB of values.
Test Plan: Ran unit tests. Artificially decreased limit and ran transcripts, saw them truncate properly.
Reviewers: btrahan
Reviewed By: btrahan
CC: frgtn, aran
Differential Revision: https://secure.phabricator.com/D7783
Summary: Ref T4195. We need these in Herald, since HeraldTranscripts need to refer to a PHID which they acted upon.
Test Plan:
Ran migration, got PHIDs:
mysql> select phid from repository_pushlog limit 3;
+--------------------------------+
| phid |
+--------------------------------+
| PHID-PSHL-25jnc6cjgzw5rwqgmr7r |
| PHID-PSHL-2vrvmtslkrj5yv7nxsv2 |
| PHID-PSHL-34x262zkrwoka6mplony |
+--------------------------------+
3 rows in set (0.00 sec)
Reviewers: btrahan
Reviewed By: btrahan
CC: aran
Maniphest Tasks: T4195
Differential Revision: https://secure.phabricator.com/D7780
Summary: This implements support for enforcing and setting policies in Phragment.
Test Plan: Set policies and ensured they were enforced successfully.
Reviewers: epriestley, #blessed_reviewers
Reviewed By: epriestley
CC: Korvin, epriestley, aran
Maniphest Tasks: T4205
Differential Revision: https://secure.phabricator.com/D7751
Summary:
See <https://github.com/facebook/phabricator/issues/467>. @dctrwatson also ran into an issue where we were trying to `setPass()` a GitURI.
- For Git and Mercurial, properly generate credential URIs where relevant.
- Don't try to `setPass()` on Git-style URIs.
This isn't perfect but should clean things up a bit.
Test Plan: Added unit tests. Lots of `grep`.
Reviewers: btrahan
Reviewed By: btrahan
CC: dctrwatson, aran
Differential Revision: https://secure.phabricator.com/D7759
Summary:
This provides a `phragment.getstate` and a `phragment.getpatch` Conduit method.
`phragment.getstate` - This returns the current state of the fragment and all of it's children.
`phragment.getpatch` - This accepts a base path and a mapping of paths to hashes. The mapping is for the caller to specify the current state of the files it has. This returns a list of patches that the caller needs to apply to it's files to get to the latest version.
Test Plan:
Ran the following script in a folder which had content matching a fragment and it's children:
```
#!/bin/bash
STATE=""
for i in $(find ./ -type f); do
HASH=$(cat $i | sha1sum | awk '{ print $1 }')
BASE=${i:2}
STATE="$STATE,\"$BASE\":\"$HASH\""
done
STATE=${STATE:1}
STATE="{$STATE}"
echo '{"path":"tychaia3.zip","state":'$STATE'}' | arc --conduit-uri=http://phabricator.local/ call-conduit phragment.getpatch
```
and I got:
```
{"error":null,"errorMessage":null,"response":[]}
```
I updated one of the child fragments with a new file and ran the script again (patch has been omitted due to it's size):
```
{"error":null,"errorMessage":null,"response":[{"path":"Content\/TitleFont.xnb","hash_old":"4a927d7b90582e50cdd330de9f4b59b0cc5eb5c7","hash_new":"25867504642a3a403102274c68fbb9b430c1980f","patch":"..."}]}
```
Reviewers: epriestley, #blessed_reviewers
Reviewed By: epriestley
CC: Korvin, epriestley, aran, staticshock
Maniphest Tasks: T4205
Differential Revision: https://secure.phabricator.com/D7739
Summary: This adds a build step which will block a build from continuing if there are previous builds of the build plan still running.
Test Plan: Configured a build plan with a wait of 60 seconds and a "wait for previous builds", then started a build. While that was still building, reconfigured the plan to have a wait time of 3 seconds, started it, and saw it move into the "Waiting" status. When the 60 second build finished, both builds passed.
Reviewers: epriestley, #blessed_reviewers
Reviewed By: epriestley
CC: Korvin, epriestley, aran
Maniphest Tasks: T1049
Differential Revision: https://secure.phabricator.com/D7745
Summary: This adds a build step in Harbormaster for publishing file artifacts as fragments in Phragment.
Test Plan:
Created a build plan with the following steps:
* Lease Host
* Upload Artifact
* Publish Fragment
Ran the build plan against a buildable and saw the fragment get created in Phragment. Ran the plan again and saw the fragment get updated with a new version. Modified the file that got uploaded and ran the plan again, checked the history of the fragment, and saw the differences represented as a Diff-Match-Patch patch.
Reviewers: epriestley, #blessed_reviewers
Reviewed By: epriestley
CC: Korvin, epriestley, aran
Maniphest Tasks: T4205
Differential Revision: https://secure.phabricator.com/D7742
Summary:
Ref T4212. This implements snapshots in Phragment, which allows you to take a snapshot of a fragment at a given point in time, and download a ZIP of the snapshot as it was in this state.
There's also functionality for deleting and promoting snapshots. You can promote a snapshot to either the latest version or any other snapshot of the fragment.
Test Plan: Clicked around, took some snapshots, promoted them to different points and deleted snapshots. Also downloaded ZIPs of the snapshots and saw the right versions coming through for all the files downloaded.
Reviewers: epriestley, #blessed_reviewers
Reviewed By: epriestley
CC: Korvin, epriestley, aran
Maniphest Tasks: T4205, T4212
Differential Revision: https://secure.phabricator.com/D7741
Summary:
This functionality allows users to revert a fragment to a previous version from the history page.
Reverting a version actually creates a new version pointing at the same file as the version being "reverted" to. In this sense it acts pretty much like Git and other distributed VCS where once you have published a commit the only way to undo your changes is to create a new commit that reverts those changes.
Test Plan: Reverted a fragment to a version before it was deleted, then reverted it to when it was deleted and saw the new versions have the correct file PHIDs (including null for the deletion).
Reviewers: epriestley, #blessed_reviewers
Reviewed By: epriestley
CC: Korvin, epriestley, aran
Maniphest Tasks: T4205
Differential Revision: https://secure.phabricator.com/D7738
Summary:
This adds support for viewing individual versions on a fragment as well as comparing versions and downloading diff_match_patch-based patches.
It does not use the side-by-side diff format as while it works for small changes, it quickly becomes impossible to distingush what changes have been made due to the diff_match_patch format.
Test Plan: Clicked on versions and downloaded patches.
Reviewers: epriestley, #blessed_reviewers
Reviewed By: epriestley
CC: Korvin, epriestley, aran
Maniphest Tasks: T4205
Differential Revision: https://secure.phabricator.com/D7734
Summary: Depends on D7727. This adds support for downloading a fragment and all it's children as a ZIP file. Fragments that have children automatically become directories in the ZIP file.
Test Plan: Downloaded a fragment as a ZIP and was able to extract the contents successfully.
Reviewers: epriestley, #blessed_reviewers
Reviewed By: epriestley
CC: Korvin, epriestley, aran
Maniphest Tasks: T4205
Differential Revision: https://secure.phabricator.com/D7728
Summary: Depends on D7726. This adds a history controller (for viewing a list of patches associated with a fragment) and an update controller, for creating a new patch of a fragment.
Test Plan: Updated and viewed history of fragments.
Reviewers: epriestley, #blessed_reviewers
Reviewed By: epriestley
CC: Korvin, epriestley, aran
Maniphest Tasks: T4205
Differential Revision: https://secure.phabricator.com/D7727
Summary: Ref T4205. This is an initial implementation of Phragment. You can create and browse fragments in the system (but you can't yet view a fragment's patches / history).
Test Plan: Clicked around and created fragments.
Reviewers: epriestley, #blessed_reviewers
Reviewed By: epriestley
CC: Korvin, epriestley, aran
Maniphest Tasks: T4205
Differential Revision: https://secure.phabricator.com/D7726
Summary: This implements support for explicitly marking the sequence of build steps. Users can now drag and re-order build steps in plans, and artifact dependencies are re-calculated so that if you move "Run Command" before "Lease Host", the "Run Command" step has it's artifact setting cleared and thus the step becomes invalid.
Test Plan: Re-ordered build steps and observed dependencies being correctly recalculated.
Reviewers: epriestley, #blessed_reviewers
Reviewed By: epriestley
CC: Korvin, epriestley, aran
Maniphest Tasks: T1049
Differential Revision: https://secure.phabricator.com/D7715
Summary: This implements a build step for uploading an artifact from a build machine to Phabricator. It uses SFTP so that it will work on both UNIX and Windows build machines.
Test Plan: Ran an "Upload Artifact" build against a Windows machine (with FreeSSHD installed). The artifact uploaded to Phabricator, appeared on the build view and the file contents could be viewed from Phabricator.
Reviewers: epriestley, #blessed_reviewers
Reviewed By: epriestley
CC: Korvin, epriestley, aran
Maniphest Tasks: T1049
Differential Revision: https://secure.phabricator.com/D7582
Summary:
Ref T4195. This log serves two purposes:
- It's a log, so you can see what happened. Particularly, in Git/Hg, there is no other way to tell:
- Who //pushed// a change (vs committed / authored)?
- When was a change pushed?
- What was the old value of some tag/branch before someone destroyed it?
- We can hand these objects off to Herald to implement pre-commit rules.
This is a very basic implementation, but gets some data written and has a basic UI for it.
Test Plan: {F87339}
Reviewers: btrahan
Reviewed By: btrahan
CC: aran
Maniphest Tasks: T4195
Differential Revision: https://secure.phabricator.com/D7705
Summary: This migrates the "Run Remote Command" build step over to use Drydock hosts and Harbormaster artifacts.
Test Plan:
Created a build plan with a "Lease Host" step and a "Run Command" step. Configured the "Run Command" step to use the artifact from the "Lease Host" step.
Saw the results:
{F87377}
{F87378}
Reviewers: epriestley, #blessed_reviewers
Reviewed By: epriestley
CC: Korvin, epriestley, aran
Maniphest Tasks: T1049, T4111
Differential Revision: https://secure.phabricator.com/D7707
Summary:
This adds LeaseHostBuildStepImplementation for getting leases on hosts in Drydock via Harbormaster. It stores the resulting lease in an artifact.
There is also a few bug fixes as well.
Test Plan: Created a build plan with a "Lease Host" build step. Ran the build plan and saw the build pass and the artifact in the database.
Reviewers: epriestley, #blessed_reviewers
Reviewed By: epriestley
CC: Korvin, epriestley, aran
Maniphest Tasks: T1049, T4111
Differential Revision: https://secure.phabricator.com/D7706
Summary: This implements build targets as outlined in D7582. Build targets represent an instance of a build step particular to the build. Logs and artifacts have been adjusted to attach to build targets instead of build / build step pairs.
Test Plan: Ran builds and clicked around the interface. Everything seemed to work.
Reviewers: epriestley, #blessed_reviewers
Reviewed By: epriestley
CC: Korvin, epriestley, aran
Maniphest Tasks: T4111, T1049
Differential Revision: https://secure.phabricator.com/D7703
Summary:
//(this diff used to be about applying policies to blueprints)//
This restructures Drydock so that blueprints are instances in the DB, with an associated implementation class. Thus resources now have a `blueprintPHID` instead of `blueprintClass` and DrydockBlueprint becomes a DAO. The old DrydockBlueprint is renamed to DrydockBlueprintImplementation, and the DrydockBlueprint DAO has a `blueprintClass` column on it.
This now just implements CAN_VIEW and CAN_EDIT policies for blueprints, although they are probably not enforced in all of the places they could be.
Test Plan: Used the `create-resource` and `lease` commands. Closed resources and leases in the UI. Clicked around the new and old lists to make sure everything is still working.
Reviewers: epriestley, #blessed_reviewers
Reviewed By: epriestley
CC: Korvin, epriestley, aran
Maniphest Tasks: T4111, T2015
Differential Revision: https://secure.phabricator.com/D7638
Summary:
Ref T4189. T4189 describes most of the intent here:
- When updating hosted repositories, sync a pre-commit hook into them instead of doing a `git fetch`.
- The hook calls into Phabricator. The acting Phabricator user is sent via PHABRICATOR_USER in the environment. The active repository is sent via CLI.
- The hook doesn't do anything useful yet; it just veifies basic parameters, does a little parsing, and exits 0 to allow the commit.
Test Plan:
- Performed Git pushes and pulls over SSH and HTTP.
Reviewers: btrahan
Reviewed By: btrahan
CC: aran
Maniphest Tasks: T4189
Differential Revision: https://secure.phabricator.com/D7682
Summary: DrydockResource has been updated to be policy-aware (although there are no policy columns).
Test Plan: Clicked around in Drydock, viewed resources and leases, everything still seemed to work.
Reviewers: epriestley, #blessed_reviewers
Reviewed By: epriestley
CC: Korvin, epriestley, aran
Maniphest Tasks: T3605, T4111
Differential Revision: https://secure.phabricator.com/D7595
Summary: Fixes T3687. Instead of rendering "JIRA Issues" in Differential using plain links, render them using Doorkeeper tags so they get the nice "enhance with object name" effect.
Test Plan: {F84886}
Reviewers: btrahan
Reviewed By: btrahan
CC: aran
Maniphest Tasks: T3687
Differential Revision: https://secure.phabricator.com/D7648
Summary:
Ref T4038. This adds everything except the actual pushing part for mirrors.
This isn't the most beautiful or sophisticated UI, but I want get the authoritative repositories self-hosted and get users beta-ing hosting as soon as possible. We can do transactions, etc., later on.
Test Plan: See screenshots.
Reviewers: btrahan
Reviewed By: btrahan
CC: aran
Maniphest Tasks: T4038
Differential Revision: https://secure.phabricator.com/D7632
Summary: Ref T4122. These classes provide typed, checked access to credentials, so you can say "give me this password, and throw if anything is funky".
Test Plan: Used in next revision.
Reviewers: btrahan
Reviewed By: btrahan
CC: aran
Maniphest Tasks: T4122
Differential Revision: https://secure.phabricator.com/D7625
Summary:
This adds a Drydock blueprint for preallocated, remote hosts. This will be used by the Harbormaster interface to allow users to specify remote hosts that builds can be run on.
This adds a `canAllocateResource` method to Drydock blueprints; it is used to detect whether a blueprint can allocate a resource for the given type and attributes.
Test Plan:
Ran:
```
bin/drydock lease --type host --attributes remote=true,preallocated=true,host=192.168.56.101,port=22,user=james,keyfile=,path=C:\\Build\\,platform=windows
```
and saw the "C:\Build\<id>" folder appear on the remote Windows machine. Viewed the lease and resource in Drydock as well.
Reviewers: epriestley, #blessed_reviewers
Reviewed By: epriestley
CC: Korvin, epriestley, aran, jamesr
Maniphest Tasks: T4111
Differential Revision: https://secure.phabricator.com/D7593
Summary: Ref T4140. Provide more debugging information so we can figure out what's going on with redirect loops.
Test Plan: {F83868}
Reviewers: chad, btrahan
Reviewed By: btrahan
CC: aran
Maniphest Tasks: T4140
Differential Revision: https://secure.phabricator.com/D7620
Summary: ...and get the basic edit flow "working" for a new NuanceSourceDefinition - the Phabricator Form. ...and fix a dumb bug in the query class so when you redirect to the view page / try to edit an existing NuanceSource you don't fatal.
Test Plan: played around with the edit form and it worked!
Reviewers: epriestley
Reviewed By: epriestley
CC: Korvin, epriestley, aran
Differential Revision: https://secure.phabricator.com/D7585
Summary:
Ref T4122. Implements a credential management application for the uses described in T4122.
@chad, this needs an icon, HA HA HAHA HA BWW HA HA HA
bwahaha
Test Plan: See screenshots.
Reviewers: btrahan, chad
Reviewed By: btrahan
CC: chad, aran
Maniphest Tasks: T4122
Differential Revision: https://secure.phabricator.com/D7608
Summary:
A usable, Land to GitHub flow.
Still to do:
- Refactor all git/hg stratagies to a sane structure.
- Make the dialogs Workflow + explain why it's disabled.
- Show button and request Link Account if GH is enabled, but user is not linked.
- After refreshing token, user ends up in the settings stage.
Hacked something in LandController to be able to show an arbitrary dialog from a strategy.
It's not very nice, but I want to make some more refactoring to the controller/strategy/ies anyway.
Also made PhabricatorRepository::getRemoteURIObject() public, because it was very useful in getting
the domain and path for the repo.
Test Plan:
Went through these flows:
- load revision in hosted, github-backed, non-github backed repos to see button as needed.
- hit land with weak token - sent to refresh it with the extra scope.
- Land to repo I'm not allowed - got proper error message.
- Successfully landed; Failed to apply patch.
Reviewers: epriestley, #blessed_reviewers
Reviewed By: epriestley
CC: Korvin, epriestley, aran
Maniphest Tasks: T182
Differential Revision: https://secure.phabricator.com/D7555
Summary:
Ref T4039. This is mostly to deal with that, to prevent the security issues associated with mutable local paths. The next diff will lock them in the web UI.
I also added a confirmation prompt to `bin/repository delete`, which was a little scary without one.
See one comment inline about the `--as` flag. I don't love this, but when I started adding all the stuff we'd need to let this transaction show up as "Administrator" it quickly got pretty big.
Test Plan: Ran `bin/repository edit ...`, saw an edit with a transaction show up on the web UI.
Reviewers: btrahan
Reviewed By: btrahan
CC: aran
Maniphest Tasks: T4039
Differential Revision: https://secure.phabricator.com/D7579
Summary:
Nothing fancy here, just:
- UI to show users needing approval.
- "Approve" and "Disable" actions.
- Send "Approved" email on approve.
- "Approve" edit + log operations.
- "Wait for Approval" state for users who need approval.
There's still no natural way for users to end up not-approved -- you have to write directly to the database.
Test Plan: See screenshots.
Reviewers: btrahan
Reviewed By: btrahan
CC: aran
Differential Revision: https://secure.phabricator.com/D7573
Summary:
Ref T2230. The SVN protocol has a sensible protocol format with a good spec here:
http://svn.apache.org/repos/asf/subversion/trunk/subversion/libsvn_ra_svn/protocol
Particularly, compare this statement to the clown show that is the Mercurial wire protocol:
> It is possible to parse an item without knowing its type in advance.
WHAT A REASONABLE STATEMENT TO BE ABLE TO MAKE ABOUT A WIRE PROTOCOL
Although it makes substantially more sense than Mercurial, it's much heavier-weight than the Git or Mercurial protocols, since it isn't distributed.
It's also not possible to figure out if a request is a write request (or even which repository it is against) without proxying some of the protocol frames. Finally, several protocol commands embed repository URLs, and we need to reach into the protocol and translate them.
Test Plan: Ran various SVN commands over SSH (`svn log`, `svn up`, `svn commit`, etc).
Reviewers: btrahan
Reviewed By: btrahan
CC: aran
Maniphest Tasks: T2230
Differential Revision: https://secure.phabricator.com/D7556
Summary:
Ref T2230. This is substantially more complicated than Git, but mostly because Mercurial's protocol is a like 50 ad-hoc extensions cobbled together. Because we must decode protocol frames in order to determine if a request is read or write, 90% of this is implementing a stream parser for the protocol.
Mercurial's own parser is simpler, but relies on blocking reads. Since we don't even have methods for blocking reads right now and keeping the whole thing non-blocking is conceptually better, I made the parser nonblocking. It ends up being a lot of stuff. I made an effort to cover it reasonably well with unit tests, and to make sure we fail closed (i.e., reject requests) if there are any parts of the protocol I got wrong.
A lot of the complexity is sharable with the HTTP stuff, so it ends up being not-so-bad, just very hard to verify by inspection as clearly correct.
Test Plan:
- Ran `hg clone` over SSH.
- Ran `hg fetch` over SSH.
- Ran `hg push` over SSH, to a read-only repo (error) and a read-write repo (success).
Reviewers: btrahan, asherkin
Reviewed By: btrahan
CC: aran
Maniphest Tasks: T2230
Differential Revision: https://secure.phabricator.com/D7553
