TheR1sing3un opened a new pull request, #8325:
URL: https://github.com/apache/paimon/pull/8325
## Purpose
pypaimon already implements the full branch Catalog API (filesystem + REST),
but the CLI had no way to manage branches. This adds branch management to the
CLI.
## Changes
Add a top-level `paimon branch {create,list,delete,rename,fast-forward}`
command (alongside `table` / `db` / `catalog` / `sql`):
```shell
paimon branch create db.t b1 [--tag v1]
paimon branch list db.t [--format table|json]
paimon branch delete db.t b1
paimon branch rename db.t b1 b2
paimon branch fast-forward db.t b1
```
- All operations go through the Catalog layer, so they get typed exceptions
(`BranchAlreadyExistException` / `BranchNotExistException` /
`TableNotExistException` / `TagNotExistException`) and work for both filesystem
and REST catalogs.
- `create --tag` builds a branch from a tag.
- Command and argument names mirror the Java branch procedures
(`create_branch` / `delete_branch` / `rename_branch` / `fast_forward`).
- pypaimon CLI docs updated with a new "Branch Commands" section.
Also covers the from-tag / fast-forward happy paths at the catalog-test
layer (the `SameFileError` bug they previously worked around was fixed in
#7756).
## Tests
End-to-end CLI coverage for create / list / delete / rename / fast-forward,
including `--tag`, table/json output, and the not-found / duplicate /
invalid-identifier error paths; plus catalog-layer from-tag and fast-forward
happy-path tests.
## Does this PR introduce a user-facing change?
No.
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