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d352133d6d
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13 Commits

Author SHA1 Message Date
Jun Wu
d352133d6d hgcommits: use concrete error types 
Summary: Migrate to concrete types so it can be typechecked.

Reviewed By: DurhamG

Differential Revision: D23095469

fbshipit-source-id: 27c6da30ca8a1329df544cd2ded7d9734593e48a
 2020-08-21 13:00:45 -07:00
Jun Wu
f666cb1cf0 dag: add DagAlgorithm::snapshot_dag 
Summary:
This API allows the underlying Dag to provide a snapshot. The snapshot can then
be used in places that do not want a lifetime (ex. NameSet).

Reviewed By: sfilipco

Differential Revision: D22970579

fbshipit-source-id: ededff82009fd5b4583f871eef084ec907b45d33
 2020-08-21 13:00:45 -07:00
Jun Wu
fa25f42fea pydag: add an API to migrate from one DAG to segmented DAG 
Summary:
This will be used for migrating revlog DAG to segmented changelog. It does not
migrate commit text data (which can take 10+ minutes).

Reviewed By: DurhamG, sfilipco

Differential Revision: D22970582

fbshipit-source-id: 125a8726d48e15ceb06edb139d6d5b2fc132a32c
 2020-08-21 13:00:45 -07:00
Jun Wu
d047f07b70 commits: add a trait to describe storage backend and use-cases 
Summary: This will be used to describe what the commit graph backend is.

Reviewed By: sfilipco

Differential Revision: D22970577

fbshipit-source-id: 753efdbdd4466730ece758d9f4789fbd21e2801b
 2020-08-21 13:00:45 -07:00
Jun Wu
b77355ca0c commits: add double write commits backend 
Summary:
This allows us to try segmented changelog while maintaining revlog
compatibility.

Reviewed By: sfilipco

Differential Revision: D22970583

fbshipit-source-id: 7c43cdadd76300e76e89f38aac5ed3ecc0cff728
 2020-08-21 13:00:45 -07:00
Jun Wu
6fd7a2e582 dag: use concrete error types 
Summary:
This is more complex than previous libraries, mainly because `dag` defines APIs
(traits) used by other code, which might raise error type not interested
by `dag` itself. `BackendError::Other(anyhow::Error)` is currently used to
capture types that do not fit in `dag`'s predefined error types.

Reviewed By: sfilipco

Differential Revision: D22883865

fbshipit-source-id: 3699e14775f335620eec28faa9a05c3cc750e1d1
 2020-08-06 12:31:57 -07:00
Jun Wu
8d0f48c4da dag: rename some anyhow::Result to dag::Result 
Summary:
Prefix some `Result` with `dag::Result`. Since `dag::Result` is just
`anyhow::Result` for now, this does not change anything but makes
it more compatible with upcoming changes.

Reviewed By: sfilipco

Differential Revision: D22883864

fbshipit-source-id: 95a26897ed026f1bb8000b7caddeb461dcaad0e7
 2020-08-06 12:31:57 -07:00
Jun Wu
64d4f5743f dag: delegate reachable_root to inner implementations 
Summary: Otherwise the default implementation will be used.

Reviewed By: sfilipco

Differential Revision: D22657206

fbshipit-source-id: dea31149efe41cb3d9e30b33c138e437dce8011e
 2020-07-30 20:32:37 -07:00
Jun Wu
7b7ae0bd09 hgcommits: implement strip_commits for testing 
Summary:
About 64 tests depend on the revlog `strip` behavior. `strip` is not used in
production client-repos.  I tried to migrate them off `strip` but that seems
too much work for now. Instead let's just implement `strip` in the HgCommits
layer to be compatible to run the tests.

Reviewed By: DurhamG

Differential Revision: D22402195

fbshipit-source-id: f68d005e04690d8765d5268c698b6c96b981eb0a
 2020-07-17 22:23:05 -07:00
Jun Wu
e53be6d0fc hgcommits: make HgCommit serializable 
Summary: This is used by the next diff.

Reviewed By: sfilipco

Differential Revision: D21944139

fbshipit-source-id: 184c4e97aaeca36c3608665defd1473c9300fb5b
 2020-07-06 15:51:00 -07:00
Jun Wu
132f046f11 hgcommits: add revlog-based commits 
Summary: Use `RevlogIndex` to implement the HgCommits interface.

Reviewed By: sfilipco

Differential Revision: D21854226

fbshipit-source-id: 05ff242858ac879d3b40b35ba8db5044135604be
 2020-07-06 15:50:59 -07:00
Jun Wu
fa62891e30 hgcommits: add in-memory version of HgCommits 
Summary: This will satisfy some use-cases.

Reviewed By: sfilipco

Differential Revision: D21854225

fbshipit-source-id: 76758716b35cfd31dc3843c118917c0fb7609027
 2020-07-06 15:50:59 -07:00
Jun Wu
ea67a2168e hgcommits: new crate for hybrid commit data + dag structure 
Summary: This will help move more Python logic to Rust.

Reviewed By: sfilipco

Differential Revision: D21854224

fbshipit-source-id: b03cbacedc11d77e8c56262437a8d10bd9a89e59
 2020-07-06 15:50:59 -07:00