Automate JSON generation

src/docbuild/cli/cmd_cli.py

@@ -183,7 +183,7 @@ def cli(
     try:
         # Pydantic validation handles placeholder replacement via @model_validator
         # The result is the validated Pydantic object, stored in context.envconfig
-        context.envconfig = EnvConfig.from_dict(raw_envconfig)
+        context.envconfig = EnvConfig.from_dict(raw_envconfig).model_dump(mode='json')
     except (ValueError, ValidationError) as e:
         log.error(
              "Environment configuration failed validation: "

src/docbuild/cli/cmd_metadata/__init__.py

@@ -13,7 +13,8 @@
 from .metaprocess import process
 
 # Set up rich consoles for output
-console_out = Console()
+stdout = Console()
+console_err = Console(stderr=True, style='red')
 
 
 @click.command(help=__doc__)
@@ -22,10 +23,18 @@
     nargs=-1,
     callback=validate_doctypes,
 )
+@click.option(
+    '--exitfirst',
+    is_flag=True,
+    default=False,
+    show_default=True,
+    help='Exit on first failed deliverable.',
+)
 @click.pass_context
 def metadata(
     ctx: click.Context,
     doctypes: tuple[Doctype],
+    exitfirst: bool,
 ) -> None:
     """Subcommand to create metadata files.
 
@@ -44,9 +53,9 @@ def metadata(
     t = None
     try:
         with timer() as t:
-            result = asyncio.run(process(context, doctypes))
+            result = asyncio.run(process(context, doctypes, exitfirst=exitfirst))
     finally:
         if t and not math.isnan(t.elapsed):
-            console_out.print(f'Elapsed time {t.elapsed:0.2f}s')
+            stdout.print(f'Elapsed time {t.elapsed:0.2f}s')
 
     ctx.exit(result)