docs: Split README.md per action

README.md

@@ -2,294 +2,15 @@
 
 `ni/python-actions` is a Git repository containing reusable GitHub Actions for NI Python projects.
 
-## Table of Contents
-
-- [`ni/python-actions`](#nipython-actions)
-  - [Table of Contents](#table-of-contents)
-  - [`ni/python-actions/setup-python`](#nipython-actionssetup-python)
-    - [Usage](#usage)
-    - [Inputs](#inputs)
-      - [`python-version`](#python-version)
-    - [Outputs](#outputs)
-      - [`python-version`](#python-version-1)
-      - [`python-path`](#python-path)
-    - [Environment Variables](#environment-variables)
-      - [`pythonVersion`](#pythonversion)
-  - [`ni/python-actions/setup-poetry`](#nipython-actionssetup-poetry)
-    - [Usage](#usage-1)
-    - [Inputs](#inputs-1)
-      - [`poetry-version`](#poetry-version)
-      - [`use-cache`](#use-cache)
-    - [Outputs](#outputs-1)
-      - [`cache-hit`](#cache-hit)
-  - [`ni/python-actions/check-project-version`](#nipython-actionscheck-project-version)
-    - [Usage](#usage-2)
-    - [Inputs](#inputs-2)
-      - [`project-directory`](#project-directory)
-      - [`expected-version`](#expected-version)
-  - [`ni/python-actions/update-project-version`](#nipython-actionsupdate-project-version)
-    - [Usage](#usage-3)
-    - [Inputs](#inputs-3)
-      - [`project-directory`](#project-directory-1)
-      - [`branch-prefix`](#branch-prefix)
-      - [`create-pull-request`](#create-pull-request)
-      - [`version-rule` and `use-dev-suffix`](#version-rule-and-use-dev-suffix)
-      - [`token`](#token)
-
-## `ni/python-actions/setup-python`
-
-The `setup-python` action installs Python and adds it to the PATH.
-
-It is a thin wrapper for https://github.com/actions/setup-python which is intended to
-single-source the default Python version for multiple NI Python projects.
-
-By default, this action installs Python 3.11.9.
-
-### Usage
-
-```yaml
-steps:
-- uses: ni/python-actions/setup-python@v0.2
-```
-
-### Inputs
-
-#### `python-version`
-
-You can specify the `python-version` input for testing with multiple versions of Python:
-
-```yaml
-strategy:
-  matrix:
-    python-version: [3.9, '3.10', 3.11, 3.12, 3.13]
-steps:
-- uses: ni/python-actions/setup-python@v0.2
-  with:
-    python-version: ${{ matrix.python-version }}
-```
-
-### Outputs
-
-#### `python-version`
-
-You can use the `python-version` output to get the actual version of Python, which is useful for caching:
-
-```yaml
-steps:
-- uses: ni/python-actions/setup-python@v0.2
-  id: setup-python
-- uses: actions/cache@v4
-  with:
-    path: .venv
-    key: venv-${{ runner.os }}-py${{ steps.setup-python.outputs.python-version }}-${{ hashFiles('poetry.lock') }}
-```
-
-`python-version` is unique across implementations (CPython vs. PyPy) and free-threaded builds:
-
-- CPython: "3.13.4".
-- CPython with free-threading: "3.13.4t"
-- PyPy: "pypy3.11.11-v7.3.19"
-
-#### `python-path`
-
-`actions/setup-python` sets the `pythonLocation` environment variable to the **directory**
-containing the Python installation.
-
-You can also use the `python-path` output to get the path to the Python interpreter:
-
-```yaml
-steps:
-- uses: ni/python-actions/setup-python@v0.2
-  id: setup-python
-- run: pipx install <package> --python ${{ steps.setup-python.outputs.python-version }}
-```
-
-### Environment Variables
-
-#### `pythonVersion`
-
-This is the same as `outputs.python-version` and is mainly intended for use in
-`ni/python-actions/setup-poetry`.
-
-## `ni/python-actions/setup-poetry`
-
-The `setup-poetry` action installs Poetry, adds it to the PATH, and caches it to speed up
-workflows. 
-
-This action installs Poetry using the Python version that was selected by the `setup-python`
-action, so you must call `setup-python` first.
-
-By default, this action installs Poetry 2.1.4.
-
-### Usage
-
-```yaml
-steps:
-- uses: ni/python-actions/setup-python@v0.2
-- uses: ni/python-actions/setup-poetry@v0.2
-- run: poetry install -v
-```
-
-### Inputs
-
-#### `poetry-version`
-
-```yaml
-steps:
-- uses: ni/python-actions/setup-python@v0.2
-- uses: ni/python-actions/setup-poetry@v0.2
-  with:
-    poetry-version: 2.1.4
-- run: poetry install -v
-```
-
-#### `use-cache`
-
-If you run into caching problems, you can disable caching by specifying `use-cache: false`.
-
-### Outputs
-
-#### `cache-hit`
-
-You can use `cache-hit` to check whether Poetry was loaded from cache. This is mainly intended for
-testing the action.
-
-## `ni/python-actions/check-project-version`
-
-The `check-project-version` action uses Poetry to get the version of a Python project and checks
-that it matches an expected version. By default, this action checks against `github.ref_name`, which
-is the GitHub release tag for GitHub release events.
-
-This action requires Poetry, so you must call `setup-python` and `setup-poetry` first.
-
-### Usage
-
-```yaml
-steps:
-- uses: ni/python-actions/setup-python@v0.2
-- uses: ni/python-actions/setup-poetry@v0.2
-- uses: ni/python-actions/check-project-version@v0.2
-  if: github.event_name == 'release'
-```
-
-### Inputs
-
-#### `project-directory`
-
-You can specify `project-directory` to check a project located in a subdirectory.
-
-```yaml
-- uses: ni/python-actions/check-project-version@v0.2
-  with:
-    project-directory: packages/foo
-```
-
-#### `expected-version`
-
-You can specify `expected-version` to check against something other than `github.ref_name`.
-
-```yaml
-- uses: ni/python-actions/check-project-version@v0.2
-  with:
-    expected-version: ${{ steps.get-expected-version.outputs.version }}
-```
-
-## `ni/python-actions/update-project-version`
-
-The `update-project-version` action uses Poetry to update the version of a Python project and
-creates a pull request to modify its `pyproject.toml` file.
-
-This action requires Poetry, so you must call `setup-python` and `setup-poetry` first.
-
-Creating a pull request requires the workflow or job to have the following `GITHUB_TOKEN`
-permissions:
-
-```yaml
-permissions:
-  contents: write
-  pull-requests: write
-````
-
-### Usage
-
-```yaml
-steps:
-- uses: ni/python-actions/setup-python@v0.2
-- uses: ni/python-actions/setup-poetry@v0.2
-- uses: ni/python-actions/update-project-version@v0.2
-```
-
-### Inputs
-
-#### `project-directory`
-
-You can specify `project-directory` to update a project located in a subdirectory.
-
-```yaml
-- uses: ni/python-actions/update-project-version@v0.2
-  with:
-    project-directory: packages/foo
-```
-
-#### `branch-prefix`
-
-You can specify `branch-prefix` to customize the pull request branch names. The default value of
-`users/build/` generates pull requests with names like `users/build/update-project-version-main` and
-`users/build/update-project-version-releases-1.1`.
-
-```yaml
-- uses: ni/python-actions/update-project-version@v0.2
-  with:
-    branch-prefix: users/python-build/
-```
-
-#### `create-pull-request`
-
-You can use `create-pull-request` and `project-directory` to update multiple projects with a single
-pull request.
-
-```yaml
-- uses: ni/python-actions/update-project-version@v0.2
-  with:
-    project-directory: packages/foo
-    create-pull-request: false
-- uses: ni/python-actions/update-project-version@v0.2
-  with:
-    project-directory: packages/bar
-    create-pull-request: false
-- uses: ni/python-actions/update-project-version@v0.2
-  with:
-    project-directory: packages/baz
-    create-pull-request: true
-```
-
-#### `version-rule` and `use-dev-suffix`
-
-You can specify `version-rule` and `use-dev-suffix` to customize the versioning scheme.
-
-- `version-rule` specifies the rule for updating the version number. For example, `major` will
-  update 1.0.0 -> 2.0.0, while `patch` will update 1.0.0 -> 1.0.1. See [the docs for `poetry
-  version`](https://python-poetry.org/docs/cli/#version) for the list of rules and their behavior.
-- `use-dev-suffix` specifies whether to use development versions like `1.0.0.dev0`.
-
-The defaults are `version-rule=patch` and `use-dev-suffix=true`, which have the following behavior:
-
-| Old Version | New Version |
-| ----------- | ----------- |
-| 1.0.0       | 1.0.1.dev0  |
-| 1.0.1.dev0  | 1.0.1.dev1  |
-| 1.0.1.dev1  | 1.0.1.dev2  |
-
-When you are ready to exit the "dev" phase, you should manually update the version number to the
-desired release version before creating a release in GitHub.
-
-#### `token`
-
-The default GITHUB_TOKEN cannot trigger PR workflows, so the generated pull request will not run any
-status checks. You can work around this by using `token` to specify a token that is saved in a
-repo/org secret.
-
-See [Triggering further workflow
-runs](https://github.com/peter-evans/create-pull-request/blob/main/docs/concepts-guidelines.md#triggering-further-workflow-runs)
-in the `create-pull-request` action documentation for more info about this problem and other
-solutions to it.
+## Actions
+
+- [`ni/python-actions/setup-python`](setup-python): installs Python and adds it to the PATH,
+  single-sourcing the default Python version for multiple NI Python projects.
+- [`ni/python-actions/setup-poetry`](setup-poetry): installs Poetry, adds it to the PATH, and caches
+  it to speed up workflows.
+- [`ni/python-actions/check-project-version`](check-project-version): uses Poetry to get the version
+  of a Python project and checks that it matches an expected version. Publish workflows can use this
+  to verify that the release tag matches the version number in `pyproject.toml`.
+- [`ni/python-actions/update-project-version`](update-project-version): uses Poetry to update the
+  version of a Python project and creates a pull request to modify its `pyproject.toml` file.
+  Publish workflows can use this to update the version in `pyproject.toml` for the next build.

check-project-version/README.md

@@ -0,0 +1,43 @@
+# `ni/python-actions/check-project-version`
+
+The `ni/python-actions/check-project-version` action uses Poetry to get the version of a Python
+project and checks that it matches an expected version. Publish workflows can use this to verify
+that the release tag matches the version number in `pyproject.toml`.
+
+By default, this action checks against `github.ref_name`, which is the GitHub release tag for GitHub
+release events.
+
+This action requires Poetry, so you must call `ni/python-actions/setup-python` and
+`ni/python-actions/setup-poetry` first.
+
+## Usage
+
+```yaml
+steps:
+- uses: ni/python-actions/setup-python@v0.2
+- uses: ni/python-actions/setup-poetry@v0.2
+- uses: ni/python-actions/check-project-version@v0.2
+  if: github.event_name == 'release'
+```
+
+## Inputs
+
+### `project-directory`
+
+You can specify `project-directory` to check a project located in a subdirectory.
+
+```yaml
+- uses: ni/python-actions/check-project-version@v0.2
+  with:
+    project-directory: packages/foo
+```
+
+### `expected-version`
+
+You can specify `expected-version` to check against something other than `github.ref_name`.
+
+```yaml
+- uses: ni/python-actions/check-project-version@v0.2
+  with:
+    expected-version: ${{ steps.get-expected-version.outputs.version }}
+```

setup-poetry/README.md

@@ -0,0 +1,42 @@
+# `ni/python-actions/setup-poetry`
+
+The `ni/python-actions/setup-poetry` action installs Poetry, adds it to the PATH, and caches it to
+speed up workflows.
+
+This action installs Poetry using the Python version that was selected by the
+`ni/python-actions/setup-python` action, so you must call `ni/python-actions/setup-python` first.
+
+By default, this action installs Poetry 2.1.4.
+
+## Usage
+
+```yaml
+steps:
+- uses: ni/python-actions/setup-python@v0.2
+- uses: ni/python-actions/setup-poetry@v0.2
+- run: poetry install -v
+```
+
+## Inputs
+
+### `poetry-version`
+
+```yaml
+steps:
+- uses: ni/python-actions/setup-python@v0.2
+- uses: ni/python-actions/setup-poetry@v0.2
+  with:
+    poetry-version: 2.1.4
+- run: poetry install -v
+```
+
+### `use-cache`
+
+If you run into caching problems, you can disable caching by specifying `use-cache: false`.
+
+## Outputs
+
+### `cache-hit`
+
+You can use `cache-hit` to check whether Poetry was loaded from cache. This is mainly intended for
+testing the action.