feat(python): add migrate

.github/workflows/ci.yml

@@ -91,12 +91,14 @@ jobs:
       - uses: actions/setup-python@v5
         with:
           python-version: 3.x
-      - name: Install maturin and pytest
-        run: pip install maturin pytest
+      - name: Install dev requirements
+        run: pip install -r python/requirements-dev.txt
       - name: Build
         run: maturin build --manifest-path python/Cargo.toml --out dist
       - name: Install stacrs
         run: pip install stacrs --find-links dist --no-index
+      - name: Check
+        run: ruff check python && ruff format --check python && mypy python
       - name: Test
         run: pytest python/tests
   check:

README.md

@@ -29,14 +29,16 @@ This monorepo contains several crates:
 
 ## Bindings
 
-This repo includes Python bindings, called **stacrs**.
+### Python
+
+**stacrs** is a small, no-dependency Python library that uses **stac-rs** under the hood.
 Install with **pip**:
 
 ```shell
 pip install stacrs
 ```
 
-See [the README](./python/README.md) for more information.
+See [the documentation](https://stacrs.readthedocs.io/) for more information.
 
 ## Development
 

python/.gitignore

@@ -70,3 +70,5 @@ docs/_build/
 
 # Pyenv
 .python-version
+
+site

python/CHANGELOG.md

@@ -4,8 +4,21 @@ All notable changes to this project will be documented in this file.
 
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/), and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [Unreleased]
+
+### Added
+
+- `migrate` ([#309](https://github.com/stac-utils/stac-rs/pull/309))
+- `validate` and docs ([#307](https://github.com/stac-utils/stac-rs/pull/307))
+
+## [0.0.2] - 2024-08-28
+
+Non-functional release to fix releasing from Github actions.
+
 ## [0.0.1] - 2024-08-28
 
 Initial release.
 
+[Unreleased]: https://github.com/stac-utils/stac-rs/compare/python-v0.0.2...main
+[0.0.2]: https://github.com/stac-utils/stac-rs/compare/python-v0.0.1...python-v0.0.2
 [0.0.1]: https://github.com/stac-utils/stac-rs/releases/tag/python-v0.0.1

python/README.md

@@ -2,6 +2,7 @@
 
 [![GitHub Workflow Status](https://img.shields.io/github/actions/workflow/status/stac-utils/stac-rs/ci.yml?branch=main&style=for-the-badge)](https://github.com/stac-utils/stac-rs/actions/workflows/ci.yml)
 [![PyPI - Version](https://img.shields.io/pypi/v/stacrs?style=for-the-badge)](https://pypi.org/project/stacrs)
+[![Read the Docs](https://img.shields.io/readthedocs/stacrs?style=for-the-badge)](https://stacrs.readthedocs.io/)
 ![PyPI - License](https://img.shields.io/pypi/l/stacrs?style=for-the-badge)
 [![Contributor Covenant](https://img.shields.io/badge/Contributor%20Covenant-2.1-4baaaa.svg?style=for-the-badge)](./CODE_OF_CONDUCT)
 
@@ -23,6 +24,8 @@ import stacrs
 stacrs.validate_href("https://raw.githubusercontent.com/radiantearth/stac-spec/v1.0.0/examples/simple-item.json")
 ```
 
+See [the documentation](https://stacrs.readthedocs.io/) for more information.
+
 ## Other info
 
 This crate is part of the [stac-rs](https://github.com/stac-utils/stac-rs) monorepo, see its README for contributing and license information.

python/docs/api.md

@@ -2,7 +2,11 @@
 
 API documentation for **stacrs**.
 
-## Validation
+## Migrate
+
+::: stacrs.migrate
+
+## Validate
 
 ::: stacrs.validate
 ::: stacrs.validate_href

python/mkdocs.yml

@@ -19,7 +19,7 @@ plugins:
             show_root_heading: true
             show_signature: true
             show_signature_annotations: true
-            separate_signature: false
+            separate_signature: true
 markdown_extensions:
   - pymdownx.highlight:
       anchor_linenums: true

python/pyproject.toml

@@ -24,6 +24,7 @@ dynamic = ["version"]
 
 [project.urls]
 Repository = "https://github.com/stac-utils/stac-rs/tree/main/python"
+Documentation = "https://stacrs.readthedocs.io/"
 Issues = "https://github.com/stac-utils/stac-rs/issues"
 
 [tool.maturin]

python/requirements-dev.in

@@ -0,0 +1,4 @@
+maturin
+mypy
+ruff
+pytest

python/requirements-dev.txt

@@ -0,0 +1,20 @@
+# This file was autogenerated by uv via the following command:
+#    uv pip compile python/requirements-dev.in
+iniconfig==2.0.0
+    # via pytest
+maturin==1.7.1
+    # via -r python/requirements-dev.in
+mypy==1.11.2
+    # via -r python/requirements-dev.in
+mypy-extensions==1.0.0
+    # via mypy
+packaging==24.1
+    # via pytest
+pluggy==1.5.0
+    # via pytest
+pytest==8.3.2
+    # via -r python/requirements-dev.in
+ruff==0.6.2
+    # via -r python/requirements-dev.in
+typing-extensions==4.12.2
+    # via mypy

python/src/lib.rs

@@ -1,9 +1,47 @@
 use pyo3::{create_exception, exceptions::PyException, prelude::*, types::PyDict};
-use stac::Value;
+use stac::{Migrate, Value};
 use stac_validate::Validate;
 
 create_exception!(stacrs, StacrsError, PyException, "An error in stacrs");
 
+/// Migrates a STAC dictionary to another version.
+///
+/// Migration can be as simple as updating the `stac_version` attribute, but
+/// sometimes can be more complicated. For example, when migrating to v1.1.0,
+/// [eo:bands and raster:bands should be consolidated to the new bands
+/// structure](https://github.com/radiantearth/stac-spec/releases/tag/v1.1.0-beta.1).
+///
+/// See [the stac-rs
+/// documentation](https://docs.rs/stac/latest/stac/enum.Version.html) for
+/// supported versions.
+///
+/// Args:
+///     value (dict[str, Any]): The STAC value to migrate
+///     version (str | None): The version to migrate to. If not provided, the
+///         value will be migrated to the latest stable version.
+///
+/// Examples:
+///     >>> with open("examples/simple-item.json") as f:
+///     >>>     item = json.load(f)
+///     >>> item = stacrs.migrate(item, "1.1.0-beta.1")
+///     >>> assert item["stac_version"] == "1.1.0-beta.1"
+#[pyfunction]
+#[pyo3(signature = (value, version=None))]
+fn migrate<'py>(value: &Bound<'py, PyDict>, version: Option<&str>) -> PyResult<Bound<'py, PyDict>> {
+    let py = value.py();
+    let value: Value = pythonize::depythonize(value)?;
+    let version = version
+        .map(|version| version.parse())
+        .transpose()
+        .map_err(|err: stac::Error| StacrsError::new_err(err.to_string()))?
+        .unwrap_or_default();
+    let value = value
+        .migrate(version)
+        .map_err(|err| StacrsError::new_err(err.to_string()))?;
+    let value = pythonize::pythonize(py, &value)?;
+    value.downcast_into().map_err(PyErr::from)
+}
+
 /// Validates a single href with json-schema.
 ///
 /// Args:
@@ -64,6 +102,7 @@ fn validate_value(value: Value) -> PyResult<()> {
 /// A collection of functions for working with STAC, using Rust under the hood.
 #[pymodule]
 fn stacrs(m: &Bound<'_, PyModule>) -> PyResult<()> {
+    m.add_function(wrap_pyfunction!(migrate, m)?)?;
     m.add_function(wrap_pyfunction!(validate_href, m)?)?;
     m.add_function(wrap_pyfunction!(validate, m)?)?;
     m.add("StacrsError", m.py().get_type_bound::<StacrsError>())?;

python/stacrs.pyi

@@ -1,6 +1,7 @@
-from typing import Any
+from typing import Any, Optional
 
 class StacrsError(Exception): ...
 
+def migrate(value: dict[str, Any], version: Optional[str] = None) -> dict[str, Any]: ...
 def validate_href(href: str) -> None: ...
 def validate(value: dict[str, Any]) -> None: ...

python/tests/test_migrate.py

@@ -0,0 +1,8 @@
+from typing import Any
+
+import stacrs
+
+
+def test_migrate(item: dict[str, Any]) -> None:
+    item = stacrs.migrate(item, version="1.1.0-beta.1")
+    assert item["stac_version"] == "1.1.0-beta.1"