feat: use dynamic version (#4)

.gitignore

@@ -156,3 +156,5 @@ cython_debug/
 
 # PyCharm
 .idea/
+
+src/tidocs/VERSION

pyproject.toml

@@ -37,3 +37,4 @@ includes = ["src/tidocs/"]
 
 [tool.pdm.version]
 source = "scm"
+write_to = "tidocs/VERSION"

src/tidocs/__version__.py

@@ -0,0 +1,14 @@
+import importlib.metadata
+import importlib.resources
+
+
+def read_version() -> str:
+    try:
+        return importlib.metadata.version(__package__ or "tidocs")
+    except importlib.metadata.PackageNotFoundError:
+        return (
+            importlib.resources.files("tidocs").joinpath("VERSION").read_text().strip()
+        )
+
+
+__version__ = read_version()

src/tidocs/cli.py

@@ -8,6 +8,7 @@
 from hypercorn.config import Config
 
 from tidocs.pandoc_wrapper import Pandoc
+from tidocs.__version__ import __version__
 
 APPS = {"merge": "Merge Release Notes"}
 
@@ -38,7 +39,7 @@ def launch_marimo_app(appname: str, host: str, port: int) -> None:
 
 
 @click.command(no_args_is_help=True)
-@click.version_option(version="1.0.6")
+@click.version_option(version=__version__)
 @click.argument("appname", type=click.Choice(list(APPS.keys())), required=True)
 @click.option(
     "--host",