Reorganize paperspec commands and pin dependency versions (#2)

Reviewed-on: #2

pyproject.toml

@@ -0,0 +1,68 @@
+[build-system]
+requires = ["setuptools>=80", "setuptools-scm>=8"]
+build-backend = "setuptools.build_meta"
+
+[project]
+name = "paperspec"
+dynamic = ["version"]
+description = "The scienting formats: the reference implementation of every rule, with the JSON Schemas, SQL and test vectors as package data"
+readme = "README.md"
+# The code (src/) is Apache-2.0 and the schemas, SQL and vectors it carries are CC0-1.0, as LICENSE.md says.
+license = "Apache-2.0 AND CC0-1.0"
+license-files = ["LICENSE.md"]
+authors = [{ name = "Scientific Computing Studio", email = "maintainer@scient.ing" }]
+# Python 3.14 is the only version with the Unicode 16.0 character data the specification pins (spec/01 §1.4);
+# 3.13 has 15.1 and 3.15 has 17.0, and the package refuses to import on either.
+requires-python = ">=3.14,<3.15"
+classifiers = [
+    "Development Status :: 3 - Alpha",
+    "Intended Audience :: Science/Research",
+    "Programming Language :: Python :: 3 :: Only",
+    "Programming Language :: Python :: 3.14",
+    "Topic :: Scientific/Engineering",
+]
+# The base package is standard library only. `schema.py` needs jsonschema and
+# `crypto.py` needs cryptography; the repository's own tools need both.
+dependencies = []
+
+[project.optional-dependencies]
+schema = ["jsonschema>=4.26", "referencing>=0.35"]
+crypto = ["cryptography>=46"]
+tools = ["paperspec[crypto,schema]"]
+
+# One command with subcommands: paperspec validate, load, check, build, stress and site; `paperspec --help`
+# says which work anywhere and which need a checkout.
+[project.scripts]
+paperspec = "paperspec.cli.main:main"
+
+[project.urls]
+Homepage = "https://paperspec.scient.ing"
+Repository = "https://git.scient.ing/infra/paperspec"
+Documentation = "https://paperspec.scient.ing/docs/"
+
+# The code is `src/paperspec`. The schemas, SQL and vectors stay at the repository root, where the
+# specification links to them and the website serves the schemas at their `$id` URLs, and travel with the
+# package as data subpackages, so a consumer reads them with importlib.resources. That mapping is why the
+# packages are listed rather than found.
+[tool.setuptools]
+packages = ["paperspec", "paperspec.cli", "paperspec.schemas", "paperspec.sql", "paperspec.vectors"]
+
+[tool.setuptools.package-dir]
+"" = "src"
+"paperspec.schemas" = "schemas"
+"paperspec.sql" = "sql"
+"paperspec.vectors" = "vectors"
+
+[tool.setuptools.package-data]
+"paperspec.schemas" = ["*.json"]
+"paperspec.sql" = ["*.sql"]
+"paperspec.vectors" = ["*.jsonl"]
+
+# The package version comes from git tags (v0.1.1 builds as 0.1.1, later commits as 0.1.2.devN); CONTRIBUTING.md
+# says how it relates to the format version that CHANGELOG.md and pixi.toml carry. A source tree without git
+# history, such as a downloaded archive, builds as 0+unknown instead of failing.
+[tool.setuptools_scm]
+fallback_version = "0+unknown"
+version_file = "src/paperspec/_version.py"
+version_scheme = "guess-next-dev"
+local_scheme = "node-and-timestamp"