We test to make sure that in the event of concurrent operations,
traversal order is deterministic.
This required some changes to the testing infrastructure. We're also
able to simplify the `Actor` type that now has redundant functionality.
Simplify graph traversal and evaluation by building in some of the
functionality into `radicle-dag`, namely the pruning fold.
We avoid building vectors of graph nodes this way, and simply iterate
over the graph in one go.
Though these are perhaps not the final error types, we name them the same
across COBs and have them work the same way.
All COB modules now have a `Error` enum.
In a future change, we may want the `FromHistory` trait to support
multiple error types, eg. one for `apply` and one for `validate`.
This adds a simple `validate` function to COBs that is run on load. It
allows COBs to check whether they are valid, once all operations are
loaded, and return an error if not.
We change `Patch::latest` to always return something, because a patch is
malformed if it doesn't have at least one revision, and thus would not
load in the first place.
This also implies that there is a latest revision in the face of
concurrent updates.
Note that currently, traversal order for concurrent updates is still random.
This will be fixed in another patch.
Before this change, if a merge op referred to a commit that was not on
the default branch, the merge op and all descendant ops would be pruned.
This is a bad idea because the state of the default branch can change
*after* the merge op is created, which is out of the control of the
merge op author.
Therefore, instead of exiting, we keep processing ops (but ignore the
merge), in case the merge is invalid for this specific reason.
When applying a `Merge` action, we verify that the commit is in the
history of the default branch of that user.
Since this is not the case when issuing a `rad merge`, and since that
command is no longer needed with the push-based merge, we remove the
`rad merge` command completely.
Move `merges` from `Revision` to `Patch`, and key them by actor.
This ensures that only one merge is possible per actor. We also make
sure that only one revision can be merged at a time, and signal a
conflict if more than one revision is considered merged.
Finally, we make sure that merges have the same target-branch commit
to be considered equal.
Allows patches to have their state updated to `Merged` with a `git push`
to the default branch.
Currently, due to the limitations of the COB store, this requires a
linear search through all patches. This will eventually become a problem
when projects have thousands of patches, so we should look into
long-term solutions.
This change updates to the latest radicle-git-ext, which required a
few changes within the radicle family of crates.
One set of changes is that the radicle-git-ext crate subsumes
git-commit, git-trailers, and git-ref-format -- so all those imports
go through radicle-git-ext.
The commit code requires that parent `Oid`s point to commits, which
made some tests fail. One of the reasons for these failures is that
the patch tests used fabricated `Oid`s and so the verification would
fail. This is fixed by allowing the test context code to create
`PatchRequest`s that create valid commits.
The other reason for failure was that the identity `Action` passed an
`Oid` that pointed to a blob. This is fixed by removing that code and
making a note of it in documentation.
The final major change was moving the Refspec type into git-ref-format
and removing the AsRefspecs trait. The trait was not required and
could its usage could be replaced by simpler code.
Signed-off-by: Fintan Halpenny <fintan.halpenny@gmail.com>
X-Clacks-Overhead: GNU Terry Pratchett
This change ensures that we include as a parent to the initial commit
of a patch COB, the head of the branch we are proposing as a patch.
This was already happening for patch updates, but we forgot to also
include it for the initial patch revision.
This ensures that the code is always fetched alongside the patch.
If the reference did not exist it is not necessary to create a new
`sigrefs` entry. Check that the reference exists before removing from
the cob store and only sign if it did.
Signed-off-by: Fintan Halpenny <fintan.halpenny@gmail.com>
X-Clacks-Overhead: GNU Terry Pratchett
This commit fixes the inconsistency with the `rad patch` command,
which previously displayed an empty table when there were no issues. Now,
the CLI will display a message indicating that there are no issues to display.
Signed-off-by: Vincenzo Palazzo <vincenzopalazzodev@gmail.com>
This commit adds the cob state of either patches or issues to the
corresponding endpoint.
So we can either query a cob listing with the required state or expect
the default state.
And once filtered by cob state we paginate.
Signed-off-by: Sebastian Martinez <me@sebastinez.dev>
Add a test case showing that when a review is made with a None value
to an already set field, it will remove the original value.
Signed-off-by: Fintan Halpenny <fintan.halpenny@gmail.com>
X-Clacks-Overhead: GNU Terry Pratchett
This allows change commits to have more than one parent that isn't
part of the DAG.
We can use this to create dependencies towards git objects such as
commits, in the case of patch actions.
When a merge is applied to a patch, we check whether the threshold
of delegates has been reached, at which point we set the patch status
to `merged`.
This requires threading the identity document oid through the "apply"
process.
Revision IDs are globally unique. Users will be able to use the
Revision ID in place of its patch ID.
Make `rad merge` refuse to merge an older revision unless the `--force`
option is given.
Using LWWReg::from will always set the clock value to the default,
which can end up being used wrong.
Instead, introduce a constructor method `initial` to indicate that it
should be used on initial construction, while `new` should be used for
newer values of the register.
Signed-off-by: Fintan Halpenny <fintan.halpenny@gmail.com>
X-Clacks-Overhead: GNU Terry Pratchett
Replaces pub accessors to struct fields with methods
Also creates some methods to compute necessary information
Signed-off-by: Sebastian Martinez <me@sebastinez.dev>
To be able to change the description of a patch revision, without the
need to create a new revision.
Signed-off-by: Sebastian Martinez <me@sebastinez.dev>
Using LWWReg::from was giving subsequent actions
the same clock value as their predecessors.
This resulted in a Reject not being able
to turn into an Accept on a second review of a patch.
The solution is to use the clock value that was produced for the Op
and pass that into new, avoiding the call to from.
Co-authored-by: Fintan Halpenny <fintan.halpenny@gmail.com>
Signed-off-by: Fintan Halpenny <fintan.halpenny@gmail.com>
Signed-off-by: Sebastian Martinez <me@sebastinez.dev>
We implement a new `Element` trait which allows for more complex output
to be drawn, such as vertical and horizontal stacks.
We adapt `Table` to work within this system.
We refresh the output of `rad patch show` to use these new tools.
For display purposes in the web client, we add with this commit the
some needed properties to the revisions in the patch endpoint.
Signed-off-by: Sebastian Martinez <me@sebastinez.dev>
The Reaction type needs to ensure that the `char` stored for its value
meets certain requirements -- via its `new` constructor.
To ensure Reaction is always constructed correctly, the `pub` accessor
is removed, and the Deserialize implementation is implemented by hand
-- as opposed to using derive.
Signed-off-by: Fintan Halpenny <fintan.halpenny@gmail.com>
X-Clacks-Overhead: GNU Terry Pratchett
If Ops::try_from fails in from_history then it means that some
operations failed to be parsed.
If this happens, then a warning should be logged so that these failure
cases can be more easily traced.
Signed-off-by: Fintan Halpenny <fintan.halpenny@gmail.com>
X-Clacks-Overhead: GNU Terry Pratchett
By introducing a small limitation: only allowing entries in the change
graph to be addressable, instead of individual operations; we
drastically simplify the CRDT implementation.
There are four advantages:
1. Op ids are just regular SHA-1s
2. There's no need for relative IDs, ops never refer to other ops within the
same commit
3. There's no need for a nonce, since commits can't collide, and neither can op IDs
4. `OpId` can just be an alias of `EntryId`
The disadvantage of course, is that we have to be mindful of how we
create op transactions, since each transaction creates an addressable
unit. For example, we must not include multiple patch revisions in the
same transaction.
Slack Coder
Alexis Sellier
Fintan Halpenny
Vincenzo Palazzo
Sebastian Martinez