feat(dagster): add Dagster

dagster/examples/dagster_tutorial/.gitignore

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+# Byte-compiled / optimized / DLL files
+__pycache__/
+*.py[codz]
+*$py.class
+
+# C extensions
+*.so
+
+# Distribution / packaging
+.Python
+build/
+develop-eggs/
+dist/
+downloads/
+eggs/
+.eggs/
+lib/
+lib64/
+parts/
+sdist/
+var/
+wheels/
+share/python-wheels/
+*.egg-info/
+.installed.cfg
+*.egg
+MANIFEST
+
+# PyInstaller
+#  Usually these files are written by a python script from a template
+#  before PyInstaller builds the exe, so as to inject date/other infos into it.
+*.manifest
+*.spec
+
+# Installer logs
+pip-log.txt
+pip-delete-this-directory.txt
+
+# Unit test / coverage reports
+htmlcov/
+.tox/
+.nox/
+.coverage
+.coverage.*
+.cache
+nosetests.xml
+coverage.xml
+*.cover
+*.py.cover
+.hypothesis/
+.pytest_cache/
+cover/
+
+# Translations
+*.mo
+*.pot
+
+# Django stuff:
+*.log
+local_settings.py
+db.sqlite3
+db.sqlite3-journal
+
+# Flask stuff:
+instance/
+.webassets-cache
+
+# Scrapy stuff:
+.scrapy
+
+# Sphinx documentation
+docs/_build/
+
+# PyBuilder
+.pybuilder/
+target/
+
+# Jupyter Notebook
+.ipynb_checkpoints
+
+# IPython
+profile_default/
+ipython_config.py
+
+# pyenv
+#   For a library or package, you might want to ignore these files since the code is
+#   intended to run in multiple environments; otherwise, check them in:
+# .python-version
+
+# pipenv
+#   According to pypa/pipenv#598, it is recommended to include Pipfile.lock in version control.
+#   However, in case of collaboration, if having platform-specific dependencies or dependencies
+#   having no cross-platform support, pipenv may install dependencies that don't work, or not
+#   install all needed dependencies.
+#Pipfile.lock
+
+# UV
+#   Similar to Pipfile.lock, it is generally recommended to include uv.lock in version control.
+#   This is especially recommended for binary packages to ensure reproducibility, and is more
+#   commonly ignored for libraries.
+#uv.lock
+
+# poetry
+#   Similar to Pipfile.lock, it is generally recommended to include poetry.lock in version control.
+#   This is especially recommended for binary packages to ensure reproducibility, and is more
+#   commonly ignored for libraries.
+#   https://python-poetry.org/docs/basic-usage/#commit-your-poetrylock-file-to-version-control
+#poetry.lock
+#poetry.toml
+
+# pdm
+#   Similar to Pipfile.lock, it is generally recommended to include pdm.lock in version control.
+#   pdm recommends including project-wide configuration in pdm.toml, but excluding .pdm-python.
+#   https://pdm-project.org/en/latest/usage/project/#working-with-version-control
+#pdm.lock
+#pdm.toml
+.pdm-python
+.pdm-build/
+
+# pixi
+#   Similar to Pipfile.lock, it is generally recommended to include pixi.lock in version control.
+#pixi.lock
+#   Pixi creates a virtual environment in the .pixi directory, just like venv module creates one
+#   in the .venv directory. It is recommended not to include this directory in version control.
+.pixi
+
+# PEP 582; used by e.g. github.com/David-OConnor/pyflow and github.com/pdm-project/pdm
+__pypackages__/
+
+# Celery stuff
+celerybeat-schedule
+celerybeat.pid
+
+# SageMath parsed files
+*.sage.py
+
+# Environments
+.env
+.envrc
+.venv
+env/
+venv/
+ENV/
+env.bak/
+venv.bak/
+
+# Spyder project settings
+.spyderproject
+.spyproject
+
+# Rope project settings
+.ropeproject
+
+# mkdocs documentation
+/site
+
+# mypy
+.mypy_cache/
+.dmypy.json
+dmypy.json
+
+# Pyre type checker
+.pyre/
+
+# pytype static type analyzer
+.pytype/
+
+# Cython debug symbols
+cython_debug/
+
+# PyCharm
+#  JetBrains specific template is maintained in a separate JetBrains.gitignore that can
+#  be found at https://github.com/github/gitignore/blob/main/Global/JetBrains.gitignore
+#  and can be added to the global gitignore or merged into this file.  For a more nuclear
+#  option (not recommended) you can uncomment the following to ignore the entire idea folder.
+#.idea/
+
+# Abstra
+# Abstra is an AI-powered process automation framework.
+# Ignore directories containing user credentials, local state, and settings.
+# Learn more at https://abstra.io/docs
+.abstra/
+
+# Visual Studio Code
+#  Visual Studio Code specific template is maintained in a separate VisualStudioCode.gitignore 
+#  that can be found at https://github.com/github/gitignore/blob/main/Global/VisualStudioCode.gitignore
+#  and can be added to the global gitignore or merged into this file. However, if you prefer, 
+#  you could uncomment the following to ignore the entire vscode folder
+# .vscode/
+
+# Ruff stuff:
+.ruff_cache/
+
+# PyPI configuration file
+.pypirc
+
+# Marimo
+marimo/_static/
+marimo/_lsp/
+__marimo__/
+
+# Streamlit
+.streamlit/secrets.toml
+
+.tmp*

dagster/examples/dagster_tutorial/README.md

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+# dagster_tutorial
+
+## Getting started
+
+### Installing dependencies
+
+**Option 1: uv**
+
+Ensure [`uv`](https://docs.astral.sh/uv/) is installed following their [official documentation](https://docs.astral.sh/uv/getting-started/installation/).
+
+Create a virtual environment, and install the required dependencies using _sync_:
+
+```bash
+uv sync
+```
+
+Then, activate the virtual environment:
+
+| OS | Command |
+| --- | --- |
+| MacOS | ```source .venv/bin/activate``` |
+| Windows | ```.venv\Scripts\activate``` |
+
+**Option 2: pip**
+
+Install the python dependencies with [pip](https://pypi.org/project/pip/):
+
+```bash
+python3 -m venv .venv
+```
+
+Then active the virtual environment:
+
+| OS | Command |
+| --- | --- |
+| MacOS | ```source .venv/bin/activate``` |
+| Windows | ```.venv\Scripts\activate``` |
+
+Install the required dependencies:
+
+```bash
+pip install -e ".[dev]"
+```
+
+### Running Dagster
+
+Start the Dagster UI web server:
+
+```bash
+dg dev
+```
+
+Open http://localhost:3000 in your browser to see the project.
+
+## Learn more
+
+To learn more about this template and Dagster in general:
+
+- [Dagster Documentation](https://docs.dagster.io/)
+- [Dagster University](https://courses.dagster.io/)
+- [Dagster Slack Community](https://dagster.io/slack)

dagster/examples/dagster_tutorial/pyproject.toml

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+[project]
+name = "dagster_tutorial"
+requires-python = ">=3.9,<3.14"
+version = "0.1.0"
+dependencies = [
+    "dagster==1.11.10",
+    "dagster-duckdb>=0.27.10",
+]
+
+[dependency-groups]
+dev = [
+    "dagster-webserver",
+    "dagster-dg-cli",
+]
+
+[build-system]
+requires = ["hatchling"]
+build-backend = "hatchling.build"
+
+[tool.hatch.build.targets.wheel]
+force-include = { "pyproject.toml" = "pyproject.toml" }
+
+[tool.dg]
+directory_type = "project"
+
+[tool.dg.project]
+root_module = "dagster_tutorial"
+registry_modules = [
+    "dagster_tutorial.components.*",
+]
+
+

dagster/examples/dagster_tutorial/src/dagster_tutorial/__init__.py

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+

dagster/examples/dagster_tutorial/src/dagster_tutorial/definitions.py

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+from pathlib import Path
+
+from dagster import definitions, load_from_defs_folder
+
+
+@definitions
+def defs():
+    return load_from_defs_folder(path_within_project=Path(__file__).parent)

dagster/examples/dagster_tutorial/src/dagster_tutorial/defs/__init__.py

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+

dagster/examples/dagster_tutorial/src/dagster_tutorial/defs/assets.py

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+import dagster as dg
+from dagster_duckdb import DuckDBResource
+
+
+@dg.asset
+def customers(duckdb: DuckDBResource):
+    url = "https://raw.githubusercontent.com/dbt-labs/jaffle-shop-classic/refs/heads/main/seeds/raw_customers.csv"
+    table_name = "customers"
+
+    with duckdb.get_connection() as conn:
+        conn.execute(
+            f"""
+            create or replace table {table_name} as (
+                select * from read_csv_auto('{url}')
+            )
+            """
+        )
+
+
+@dg.asset
+def orders(duckdb: DuckDBResource):
+    url = "https://raw.githubusercontent.com/dbt-labs/jaffle-shop-classic/refs/heads/main/seeds/raw_orders.csv"
+    table_name = "orders"
+
+    with duckdb.get_connection() as conn:
+        conn.execute(
+            f"""
+            create or replace table {table_name} as (
+                select * from read_csv_auto('{url}')
+            )
+            """
+        )
+
+
+@dg.asset
+def payments(duckdb: DuckDBResource):
+    url = "https://raw.githubusercontent.com/dbt-labs/jaffle-shop-classic/refs/heads/main/seeds/raw_payments.csv"
+    table_name = "payments"
+
+    with duckdb.get_connection() as conn:
+        conn.execute(
+            f"""
+            create or replace table {table_name} as (
+                select * from read_csv_auto('{url}')
+            )
+            """
+        )
+
+
+@dg.asset(
+    deps=["customers", "orders", "payments"],
+)
+def orders_aggregation(duckdb: DuckDBResource):
+    table_name = "orders_aggregation"
+
+    with duckdb.get_connection() as conn:
+        conn.execute(
+            f"""
+            create or replace table {table_name} as (
+                select
+                    c.id as customer_id,
+                    c.first_name,
+                    c.last_name,
+                    count(distinct o.id) as total_orders,
+                    count(distinct p.id) as total_payments,
+                    coalesce(sum(p.amount), 0) as total_amount_spent
+                from customers c
+                left join orders o
+                    on c.id = o.user_id
+                left join payments p
+                    on o.id = p.order_id
+                group by 1, 2, 3
+            );
+            """
+        )
+
+
+@dg.asset_check(asset="orders_aggregation")
+def orders_aggregation_check(duckdb: DuckDBResource) -> dg.AssetCheckResult:
+    table_name = "orders_aggregation"
+    with duckdb.get_connection() as conn:
+        res = conn.execute(f"select count(*) from {table_name}").fetchone()
+        if res is None:
+            return dg.AssetCheckResult(
+                passed=False, metadata={"message": "Order aggregation check failed"}
+            )
+        row_count = res[0]
+
+    if row_count == 0:
+        return dg.AssetCheckResult(
+            passed=False, metadata={"message": "Order aggregation check failed"}
+        )
+
+    return dg.AssetCheckResult(
+        passed=True, metadata={"message": "Order aggregation check passed"}
+    )

dagster/examples/dagster_tutorial/src/dagster_tutorial/defs/resources.py

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+import dagster as dg
+from dagster_duckdb import DuckDBResource
+
+database_resource = DuckDBResource(database="/tmp/jaffle_platform.duckdb")
+
+
+@dg.definitions
+def resources():
+    return dg.Definitions(
+        resources={
+            "duckdb": database_resource,
+        }
+    )

dagster/examples/dagster_tutorial/src/dagster_tutorial/defs/schedules.py

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+from typing import Union
+
+import dagster as dg
+
+
+# @dg.schedule(cron_schedule="@daily", target="*")
+# def schedules(context: dg.ScheduleEvaluationContext) -> Union[dg.RunRequest, dg.SkipReason]:
+#     return dg.SkipReason("Skipping. Change this to return a RunRequest to launch a run.")
+
+
+@dg.schedule(cron_schedule="* * * * *", target="*")
+def tutorial_schedule(
+    context: dg.ScheduleEvaluationContext,
+) -> Union[dg.RunRequest, dg.SkipReason]:
+    return dg.SkipReason(
+        "Skipping. Change this to return a RunRequest to launch a run."
+    )

dagster/examples/dagster_tutorial/tests/__init__.py

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+