doc: Readme update pass

.github/workflows/test.yml

@@ -9,15 +9,13 @@ on:
 jobs:
   pre-commit:
     runs-on: ubuntu-latest
-    name: standardize thyself
+    name: Standardize thyself
     steps:
       - uses: actions/checkout@v6
-      - run: python -m pip install pre-commit
-        shell: bash
-      - run: python -m pip freeze --local
-        shell: bash
-      - run: pre-commit run --show-diff-on-failure --color=always
-        shell: bash
+      - uses: actions/setup-python@v6
+        with:
+          python-version: '3.10'
+      - uses: pre-commit/action@v3.0.1
 
   pytest:
     runs-on: ubuntu-latest
@@ -27,6 +25,19 @@ jobs:
       - run: uv sync
       - run: uv run pytest
 
+  readme-version:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v6
+      - name: Check README rev matches pyproject.toml version
+        run: |
+          VERSION=$(grep '^version' pyproject.toml | sed 's/version = "\(.*\)"/\1/')
+          grep -q "rev: v$VERSION" README.md || {
+            echo "README.md rev does not match pyproject.toml version v$VERSION"
+            echo "Run 'just sync-readme' to fix."
+            exit 1
+          }
+
   tag-release:
     runs-on: ubuntu-latest
     needs: [pre-commit, pytest]

.python-version

@@ -0,0 +1 @@
+3.10

DEVELOPING.md

@@ -14,6 +14,15 @@ Releases follow semantic versioning:
 - **Minor** -- new checks, formatting changes, or new linting checks. May require fixing existing code.
 - **Major** -- removed checks or other breaking changes to existing API
 
+To bump the version, use `just bump` -- it updates `pyproject.toml` and syncs the README pin in one step:
+
+```shell
+just bump minor   # or major / patch
+```
+
+CI will fail on PRs where the two are out of sync.
+The tag is pushed automatically by CI on merge to main.
+
 ## Testing
 
 Add files to `test_files/` to validate linter settings work, if other files of that type are not present in this repo.

Justfile

@@ -1,3 +1,19 @@
 verify:
   pre-commit clean
   pre-commit run --all-files
+
+# Update the rev: pin in README.md to match the current package version.
+sync-readme:
+  #!/usr/bin/env bash
+  set -euo pipefail
+  VERSION=$(uv version --short)
+  sed -i "s/rev: v[0-9]*\.[0-9]*\.[0-9]*/rev: v$VERSION/" README.md
+  echo "README.md pinned to v$VERSION"
+
+# Bump the package version and sync the README pin in one step.
+# Usage: just bump minor  (or major / patch)
+bump level:
+  #!/usr/bin/env bash
+  set -euo pipefail
+  uv version --bump {{ level }}
+  just sync-readme

README.md

@@ -1,23 +1,21 @@
 # Polymath Source Code Standard
 
-Pre-commit hooks that enforce the Polymath Robotics Engineering formatting and linting standard for a variety of languages.
-
-This is a low-configuration, highly opinionated set of hooks that take the guesswork out of formatting.
+[![CI](https://github.com/polymathrobotics/polymath_code_standard/actions/workflows/test.yml/badge.svg?branch=main)](https://github.com/polymathrobotics/polymath_code_standard/actions/workflows/test.yml)
 
-One check is provided per file type, with all necessary settings bundled within the hook.
+Pre-commit hooks that enforce the Polymath Robotics Engineering formatting and linting standard for a variety of languages.
+This is a low-configuration, opinionated set of hooks that take the guesswork out of formatting.
+One hook is provided per file type, with all necessary settings bundled.
 Consuming repositories reference this repo directly via `.pre-commit-config.yaml` -- no config files need to be copied or kept in sync.
 
-See [DEVELOPING.md](./DEVELOPING.md) for the development workflows to make updates to this tool.
-
-# Usage
+See [DEVELOPING.md](./DEVELOPING.md) for development workflows.
 
 ## Prerequisites
 
 > [!NOTE]
-> You may want to add the following text from this prerequisites section to your own repository's `README.md`!
+> Consider adding this prerequisites section to your own repository's `README.md`.
 
 Install [pre-commit](https://pre-commit.com).
-While there are several ways to do this, our favorit is with [uv](https://github.com/astral-sh/uv) - it's "scary fast".
+Our recommended approach is with [uv](https://github.com/astral-sh/uv).
 
 ```shell
 uv tool install --with pre-commit-uv pre-commit
@@ -29,24 +27,23 @@ Set up pre-commit hooks in the repository:
 pre-commit install
 ```
 
-### Hooks
+## Configuration
 
-In your repository's `.pre-commit-config.yaml`, use these hooks.
-See the following for a list of all available hooks.
-Feel free to use only the ones that apply to your usage.
+Add the following to your repository's `.pre-commit-config.yaml`.
+Use only the hooks that apply to your project.
 
 ```yaml
 ---
 repos:
   - repo: https://github.com/polymathrobotics/polymath_code_standard
-    rev: v2.2.0
+    rev: v2.3.1
     hooks:
-      # Basic checks and fixes that apply to any text file and the git repository itself
+      # File hygiene for all staged files
       - id: polymath-general
-      # Enforce and insert copyright headers in source code for the project's license
+      # Copyright headers and LICENSE file management
       - id: polymath-copyright
-        args: [--license, <SPDX_ID or 'proprietary'>, --copyright-org, <organization name>]
-      # Specific languages
+        args: [--license, Apache-2.0, --copyright-org, "Your Org Name"]
+      # Language-specific checks
       - id: polymath-python
       - id: polymath-cpp
       - id: polymath-ros
@@ -58,35 +55,216 @@ repos:
       - id: polymath-yaml
       - id: polymath-toml
       - id: polymath-json
+      - id: polymath-ansible
 ```
 
+See the [Hook Reference](#hook-reference) for details on each hook and its available arguments.
+
 ## First-time use
 
-Apply your newly configured hooks to all sources with the following.
-You should also do this whenever you update to a newer version.
+Apply your newly configured hooks to all existing files:
 
 ```shell
 pre-commit run --all-files
 ```
 
-You may now want to stage the new changes, then run again to check for any failures that require manual correction.
+Stage the reformatted files, then run again to surface any failures that require manual correction.
 
 > [!NOTE]
-> These formatters are likely not compatible with other formatting standards, for example in ROS you will now want to remove `ament_lint` in favor of these hooks.
+> These formatters are not compatible with other formatting standards.
+> In ROS projects, remove `ament_lint` in favor of these hooks.
 
 > [!NOTE]
-> After a large reformatting pass, add the commit hash to `.git-blame-ignore-revs` so that `git blame` points back to the original authors rather than the reformatting commit.
+> After a large reformatting pass, add the commit hash to `.git-blame-ignore-revs` so `git blame` points back to the original authors rather than the reformatting commit.
 
 ## CI
 
-See [.github/workflows/test.yml](./.github/workflows/test.yml) for a simple GitHub Actions configuration that runs pre-commit hooks.
+Add the following GitHub Actions workflow to run pre-commit on every push and pull request:
+
+```yaml
+---
+name: Lint
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+
+jobs:
+  pre-commit:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-python@v5
+        with:
+          python-version: '3.10'
+      - uses: pre-commit/action@v3.0.1
+```
+
+## Hook Reference
+
+### `polymath-general`
+
+Applies file hygiene checks to all staged files.
+
+- Prevents committing large files
+- Detects filename case conflicts
+- Detects merge conflict markers
+- Ensures shebanged scripts are executable
+- Validates symlinks
+- Blocks git submodules
+- Adds a trailing newline to files
+- Normalizes line endings
+- Removes trailing whitespace
+
+No arguments.
+
+---
+
+### `polymath-copyright`
+
+Inserts and validates copyright headers for Python, CMake, Shell, C, and C++ files.
+Also creates or updates the `LICENSE` file (skipped for proprietary licenses).
+Python, CMake, and Shell files use `#` comment style.
+C and C++ files use `//` comment style.
+
+**Required:**
+
+- `--license SPDX_ID` -- SPDX license ID (e.g. `Apache-2.0`, `MIT`) or `proprietary`
+- `--copyright-org ORG` -- Name of the copyright-holding organization (mutually exclusive with `--wildcard-copyright-org`)
+- `--wildcard-copyright-org` -- Accept any copyright holder on the copyright line, for multi-contributor repos (mutually exclusive with `--copyright-org`)
+
+**Optional:**
+
+- `--copyright-year YEAR` -- Copyright start year (default: current year)
+- `--reuse-style` -- Force REUSE-style 2-line copyright headers
+- `--relicense` -- Strip any existing leading comment block before inserting the new header
+
+Example:
+
+```yaml
+- id: polymath-copyright
+  args: [--license, Apache-2.0, --copyright-org, "Polymath Robotics, Inc."]
+```
+
+---
+
+### `polymath-python`
+
+Runs `ruff format`, `ruff check --fix`, and Python AST validation.
+
+> [!NOTE]
+> This hook writes `/.ruff.toml` to the consuming repo root.
+> Add `/.ruff.toml` to `.gitignore`.
+> See [`.ruff.toml` note](#rufftoml-is-written-to-the-consuming-repo) for details.
+
+No arguments.
+
+---
+
+### `polymath-cpp`
+
+Runs `clang-format` and `cpplint` on C and C++ files using Polymath's bundled configuration.
+
+No arguments.
+
+---
+
+### `polymath-ros`
+
+Enforces ROS-specific C++ conventions.
+Requires that multi-threaded executors (`MultiThreadedExecutor`, `EventsCBGExecutor`) specify an explicit thread count.
+Suppress a check on a specific line with a trailing `// NOLINT` comment.
+
+No arguments.
+
+---
+
+### `polymath-shell`
+
+Runs `shellcheck` on shell scripts.
+Detects scripts by shebang line, not just file extension.
+Excludes `.envrc` files.
+
+No arguments.
+
+---
+
+### `polymath-cmake`
+
+Runs `cmakelint` on CMake files with a maximum line length of 140.
+
+No arguments.
+
+---
+
+### `polymath-docker`
+
+Runs `hadolint` on Dockerfiles.
+
+No arguments.
+
+---
+
+### `polymath-markdown`
+
+Runs `pymarkdown` with the line-length rule disabled and auto-fixes issues where possible.
+
+No arguments.
+
+---
+
+### `polymath-xml`
+
+Validates XML well-formedness and schema compliance.
+Supports `xml-model` processing instructions and `xsi:noNamespaceSchemaLocation`.
+Includes a bundled `package_format3.xsd` schema for ROS `package.xml` validation.
 
-## NOTE: `.ruff.toml` is written to the consuming repo
+No arguments.
+
+---
+
+### `polymath-yaml`
+
+Formats and validates YAML files using `yamlfix`.
+By default, adds a `---` explicit document start marker.
+
+**Optional:**
+
+- `--no-explicit-start` -- Omit the `---` document start marker
+
+---
+
+### `polymath-toml`
+
+Validates TOML syntax.
+
+No arguments.
+
+---
+
+### `polymath-json`
+
+Validates JSON and JSON5 syntax.
+Excludes `.geojson` files.
+
+No arguments.
+
+---
+
+### `polymath-ansible`
+
+Installs Ansible collections and roles from `ansible/requirements.yml` and runs `ansible-lint` with Polymath's configuration.
+Dependencies are cached in `.polymath-ansible/` (automatically gitignored) and only reinstalled when `requirements.yml` changes.
+
+No arguments.
+
+---
 
-While `ruff` can take a `--config` argument to an absolute file, we are currently allowing subdirectories of a repository to override Ruff configuration.
+## `.ruff.toml` is written to the consuming repo
 
-To enable this, we have to omit `--config` and let Ruff walk up the directory tree.
-This means we need to install our baseline `.ruff.toml` configuration in the root of the repo for Ruff to find.
-Because `pre-commit` can run the same hook in parallel on batches of files, there is a race condition if we try to clean up that file after running.
+While `ruff` can take a `--config` argument to an absolute file, subdirectory overrides require Ruff to walk up the directory tree.
+To support this, the baseline `.ruff.toml` is installed in the repo root for Ruff to find.
+Because pre-commit can run the same hook in parallel on batches of files, cleaning up that file after running would introduce a race condition.
 
-TL;DR Add `/.ruff.toml` to `.gitignore` for the repository to ignore that it's been put there.
+Add `/.ruff.toml` to `.gitignore` in the consuming repository.

pyproject.toml

@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "polymath-code-standard"
-version = "2.3.0"
+version = "2.3.1"
 description = "Polymath Code Standard pre-commit hooks"
 requires-python = ">=3.10"
 dependencies = [