use jinja2

.dev/install

@@ -1,4 +1,4 @@
 #!/usr/bin/env bash
 
 pip install -U pip poetry
-poetry install
+poetry install --all-extras

metablock/__init__.py

@@ -5,7 +5,7 @@
 from .spaces import Block, Service, Space, SpaceExtension
 from .user import User
 
-__version__ = "1.0.2"
+__version__ = "1.1.0"
 
 __all__ = [
     "Metablock",

metablock/cli.py

@@ -3,6 +3,7 @@
 from pathlib import Path
 
 import click
+import jinja2
 import yaml
 
 from metablock import Metablock, __version__
@@ -15,8 +16,10 @@
 METABLOCK_API_TOKEN = os.environ.get("METABLOCK_API_TOKEN", "")
 
 
-def manifest(file_path: Path) -> dict:
-    return yaml.safe_load(file_path.read_text())
+def manifest(file_path: Path, params: dict) -> str:
+    env = jinja2.Environment()
+    template = env.from_string(file_path.read_text())
+    return template.render(**params)
 
 
 @click.group()
@@ -39,13 +42,19 @@ def main() -> None:
     help="metablock API token",
     default=METABLOCK_API_TOKEN,
 )
-def apply(path: str, space_name: str, token: str) -> None:
+@click.option(
+    "--dry-run",
+    is_flag=True,
+    help="Do not apply changes, just show what would be done",
+)
+def apply(path: str, space_name: str, token: str, dry_run: bool) -> None:
     """Apply metablock manifest to a metablock space"""
-    asyncio.get_event_loop().run_until_complete(
+    asyncio.run(
         _apply(
             path,
             space_name or METABLOCK_SPACE,
             token or METABLOCK_API_TOKEN,
+            dry_run=dry_run,
         )
     )
 
@@ -84,7 +93,7 @@ def ship(
     token: str,
 ) -> None:
     """Deploy a new version of html block"""
-    asyncio.get_event_loop().run_until_complete(
+    asyncio.run(
         _ship(
             path,
             env or METABLOCK_ENV,
@@ -95,7 +104,7 @@ def ship(
     )
 
 
-async def _apply(path: str, space_name: str, token: str) -> None:
+async def _apply(path: str, space_name: str, token: str, dry_run: bool) -> None:
     if not token:
         click.echo("metablock API token is required", err=True)
         raise click.Abort()
@@ -106,7 +115,14 @@ async def _apply(path: str, space_name: str, token: str) -> None:
     blocks = []
     for file_path in p.glob("*.yaml"):
         name = file_path.name.split(".")[0]
-        blocks.append((name, manifest(file_path)))
+        text = manifest(file_path, dict(space=space_name, block=name))
+        if dry_run:
+            click.echo(text)
+        else:
+            blocks.append((name, yaml.safe_load(text)))
+    if not blocks:
+        click.echo("nothing to do")
+        raise click.Abort()
     async with Metablock(auth_key=token) as mb:
         space = await mb.spaces.get(space_name)
         svc = await space.blocks.get_list()

pyproject.toml

@@ -1,17 +1,24 @@
-[tool.poetry]
+[project]
 name = "metablock"
-version = "1.0.2"
 description = "Metablock cloud python client"
-authors = ["Luca <[email protected]>"]
+version = "1.1.0"
 license = "BSD"
 readme = "readme.md"
-
-[tool.poetry.dependencies]
-python = ">=3.11"
-click = "^8.1.7"
-pyyaml = "^6.0.2"
-httpx = "^0.28.1"
-multidict = "^6.4.3"
+authors = [
+    { name = "Luca Sbardella", email="[email protected]" }
+]
+requires-python = ">=3.11"
+dependencies = [
+    "httpx >= 0.28.1",
+    "multidict >= 6.4.3"
+]
+
+[project.optional-dependencies]
+cli = [
+    "click >= 8.1.7",
+    "pyyaml >= 6.0.2",
+    "jinja2 >= 3.1.6",
+]
 
 [tool.poetry.group.dev.dependencies]
 pytest-asyncio = "^0.26.0"
@@ -28,7 +35,7 @@ ruff = "^0.11.5"
 requires = ["poetry-core>=1.0.0"]
 build-backend = "poetry.core.masonry.api"
 
-[tool.poetry.scripts]
+[project.scripts]
 metablock = "metablock.cli:main"
 
 

tests/blocks/test.yaml

@@ -1,4 +1,4 @@
-upstream: https://mb.test.test
+upstream: https://{{ block }}.test
 tags:
   - test
 routes:
@@ -8,4 +8,5 @@ routes:
     paths:
       - /test
     tags:
-      - test
+      - {{ space }}
+      - {{ block }}

tests/test_client.py

@@ -5,7 +5,7 @@
 pytestmark = pytest.mark.asyncio(loop_scope="module")
 
 
-def test_cli(cli: Metablock):
+async def test_cli(cli: Metablock):
     assert str(cli) == cli.url