Add readthedocs and sphinx to cladetime

.readthedocs.yaml

@@ -0,0 +1,21 @@
+# Read the Docs configuration file for Sphinx projects
+# See https://docs.readthedocs.io/en/stable/config-file/v2.html for details
+
+version: 2
+
+build:
+  os: ubuntu-22.04
+  tools:
+    python: "3.12"
+
+# Build documentation in the "docs/" directory with Sphinx
+sphinx:
+  configuration: docs/conf.py
+  fail_on_warning: true
+
+python:
+  install:
+    - method: pip
+      path: .
+      extra_requirements:
+        - docs

docs/conf.py

@@ -0,0 +1,137 @@
+import os
+import sys
+from datetime import date
+
+# Configuration file for the Sphinx documentation builder.
+
+# -- Project information
+
+project = "Cladetime"
+project_copyright = f"{date.today().year}, Reich Lab @ The University of Massachusetts Amherst"
+author = "Reich Lab"
+
+# Add cladetime location to the path, so we can use autodoc to
+# generate API documentation from docstrings.
+root_path = os.path.abspath(os.path.join(os.path.dirname(__file__), ".."))
+sys.path.insert(0, root_path)
+
+release = "0.1"
+# FIXME: get the version dynamically
+version = "0.1.0"
+
+# -- General configuration
+
+extensions = [
+    "myst_parser",
+    "sphinx.ext.autodoc",
+    "sphinx_copybutton",
+    "sphinx.ext.doctest",
+    "sphinx.ext.intersphinx",
+    "sphinx_github_style",
+    "sphinxext.opengraph",
+    "sphinx.ext.napoleon",
+]
+
+intersphinx_mapping = {
+    "python": ("https://docs.python.org/3/", None),
+    "sphinx": ("https://www.sphinx-doc.org/en/master/", None),
+    "polars": ("https://docs.pola.rs/api/python/stable", None),
+}
+intersphinx_disabled_domains = ["std"]
+
+# Copied these settings from the copybutton's config
+# https://github.com/executablebooks/sphinx-copybutton/blob/master/docs/conf.py
+copybutton_prompt_text = r">>> |\.\.\. |\$ |In \[\d*\]: | {2,5}\.\.\.: | {5,8}: "
+copybutton_prompt_is_regexp = True
+copybutton_line_continuation_character = "\\"
+copybutton_here_doc_delimiter = "EOT"
+copybutton_selector = "div:not(.no-copybutton) > div.highlight > pre"
+
+templates_path = ["_templates"]
+
+# The root toctree document.
+root_doc = "index"
+
+# Test code blocks only when explicitly specified
+doctest_test_doctest_blocks = ""
+
+# The theme to use for HTML and HTML Help pages.  See the documentation for
+# a list of builtin themes.
+html_static_path = ["_static"]
+html_theme = "furo"
+html_favicon = "_static/reichlab_favicon.png"
+html_title = "Cladetime"
+html_last_updated_fmt = "%Y-%m-%d"
+
+# Settings for the GitHub link extension
+linkcode_url = "https://github.com/reichlab/cladetime"
+
+# These folders are copied to the documentation's HTML output
+html_theme_options = {
+    "announcement": """
+        <a style=\"text-decoration: none; color: white;\"
+           href=\"https://github.com/reichlab/cladetime/issues">
+           Cladetime is a work in progress. Please feel free to file issues on GitHub.
+        </a>
+    """,
+    "sidebar_hide_name": True,
+    "light_logo": "cladetime_logo_light_mode.png",
+    "dark_logo": "cladetime_logo_dark_mode.png",
+    "navigation_with_keys": True,
+    "source_repository": "https://github.com/reichlab/cladetime/",
+    # source for GitHub footer icon:
+    # https://pradyunsg.me/furo/customisation/footer/#using-embedded-svgs
+    "footer_icons": [
+        {
+            "name": "GitHub",
+            "url": "https://github.com/reichlab/cladetime",
+            "html": """
+                <svg stroke="currentColor" fill="currentColor" stroke-width="0" viewBox="0 0 16 16">
+                    <path fill-rule="evenodd" d="M8 0C3.58 0 0 3.58 0 8c0 3.54 2.29 6.53 5.47 7.59.4.07.55-.17.55-.38 0-.19-.01-.82-.01-1.49-2.01.37-2.53-.49-2.69-.94-.09-.23-.48-.94-.82-1.13-.28-.15-.68-.52-.01-.53.63-.01 1.08.58 1.23.82.72 1.21 1.87.87 2.33.66.07-.52.28-.87.51-1.07-1.78-.2-3.64-.89-3.64-3.95 0-.87.31-1.59.82-2.15-.08-.2-.36-1.02.08-2.12 0 0 .67-.21 2.2.82.64-.18 1.32-.27 2-.27.68 0 1.36.09 2 .27 1.53-1.04 2.2-.82 2.2-.82.44 1.1.16 1.92.08 2.12.51.56.82 1.27.82 2.15 0 3.07-1.87 3.75-3.65 3.95.29.25.54.73.54 1.48 0 1.07-.01 1.93-.01 2.2 0 .21.15.46.55.38A8.013 8.013 0 0 0 16 8c0-4.42-3.58-8-8-8z"></path>
+                </svg>
+            """,
+            "class": "",
+        },
+    ],
+}
+
+# from https://myst-parser.readthedocs.io/en/latest/syntax/optional.html
+myst_enable_extensions = [
+    "amsmath",
+    "deflist",
+    "dollarmath",
+    "fieldlist",
+    "substitution",
+    "tasklist",
+    "colon_fence",
+    "attrs_inline",
+]
+
+# The name of the Pygments (syntax highlighting) style to use.
+pygments_style = "friendly"
+
+# Show typehints as content of the function or method
+autodoc_typehints = "description"
+autodoc_member_order = "bysource"
+
+# Open Graph metadata
+ogp_site_url = "https://cladetime.readthedocs.io"
+ogp_title = "cladetime documentation"
+ogp_type = "website"
+ogp_image = "https://cladetime.readthedocs.io/en/latest/_static/cladetime_logo_light_mode.png"
+ogp_social_cards = {
+    "image": "https://cladetime.readthedocs.io/en/latest/_static/cladetime_logo_light_mode.png",
+    "line_color": "#5d9c9c",
+}
+
+# Warn about all references to unknown targets
+nitpicky = True
+nitpick_ignore = [
+    ("py:class", "datetime"),
+    ("py:class", "polars.LazyFrame"),
+    ("py:class", "polars.lazyframe.frame.LazyFrame"),
+]
+
+
+# -- Options for EPUB output
+epub_show_urls = "footnote"

docs/index.rst

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+:og:description: Cladetime is a Python interface for accessing Sars-Cov-2 sequence and clade data provided by Nextstrain.
+
+===============
+ Cladetime
+===============
+
+Cladetime is a Python interface for accessing `Nextstrain <https://nextstrain.org/>`_ Sars-Cov-2 sequence and clade data.
+
+.. toctree::
+   :titlesonly:
+   :hidden:
+
+   Home <self>
+   user-guide
+   reference/index
+
+Installation
+------------
+
+Cladetime can be installed with `pip <https://pip.pypa.io/>`_:
+
+.. code-block:: bash
+
+   $ pip install git+https://github.com/reichlab/cladetime.git
+
+
+Usage
+-----
+
+The CladeTime :any:`CladeTime` class provides a lightweight wrapper around historical and current
+SARS-CoV-2 GenBank sequence and sequence metadata created by `nextstrain.org's <https://nextstrain.org/>`_
+daily workflow pipeline.
+
+.. code-block:: python
+
+   >>> import polars as pl
+   >>> from cladetime import CladeTime
+
+   >>> ct = CladeTime()
+   >>> filtered_sequence_metadata = (
+   ...    ct.sequence_metadata.select(["country", "division", "date", "host", "clade_nextstrain"])
+   ...    .filter(
+   ...        pl.col("country") == "USA",
+   ...        pl.col("date").is_not_null(),
+   ...        pl.col("host") == "Homo sapiens",
+   ...    )
+   ...    .cast({"date": pl.Date}, strict=False)
+   ... )
+
+   >>> filtered_sequence_metadata.head(5).collect()
+
+   shape: (5, 5)
+   ┌─────────┬──────────┬────────────┬──────────────┬──────────────────┐
+   │ country ┆ division ┆ date       ┆ host         ┆ clade_nextstrain │
+   │ ---     ┆ ---      ┆ ---        ┆ ---          ┆ ---              │
+   │ str     ┆ str      ┆ date       ┆ str          ┆ str              │
+   ╞═════════╪══════════╪════════════╪══════════════╪══════════════════╡
+   │ USA     ┆ Alabama  ┆ 2022-07-07 ┆ Homo sapiens ┆ 22A              │
+   │ USA     ┆ Arizona  ┆ 2022-07-02 ┆ Homo sapiens ┆ 22B              │
+   │ USA     ┆ Arizona  ┆ 2022-07-19 ┆ Homo sapiens ┆ 22B              │
+   │ USA     ┆ Arizona  ┆ 2022-07-15 ┆ Homo sapiens ┆ 22B              │
+   │ USA     ┆ Arizona  ┆ 2022-07-20 ┆ Homo sapiens ┆ 22B              │
+   └─────────┴──────────┴────────────┴──────────────┴──────────────────┘
+
+See the :doc:`user-guide` for more details about working with Cladetime.
+
+The :doc:`reference/index` documentation provides API-level documentation.
+

docs/reference/cladetime.rst

@@ -0,0 +1,8 @@
+:og:description: Cladetime is a Python interface for accessing Sars-Cov-2 sequence and clade data provided by Nextstrain.
+
+==========
+CladeTime
+==========
+
+.. autoclass:: cladetime.CladeTime
+    :members:

docs/reference/index.rst

@@ -0,0 +1,6 @@
+API Reference
+=============
+
+.. toctree::
+
+   cladetime

docs/user-guide.rst

@@ -0,0 +1,91 @@
+===============
+User Guide
+===============
+
+
+
+Finding Nextstrain SARS-CoV-2 sequences and sequence metadata
+--------------------------------------------------------------
+
+Cladetime provides a CladeTime class that provides a lightweight interface to nextstrain.org files.
+
+.. code-block:: python
+
+    >>> from cladetime import CladeTime
+
+    # Instantiating a CladeTime object with no parameters will use the
+    # latest available data from nextstrain.org.
+    >>> ct = CladeTime()
+
+    # URL to the most recent SARS-CoV-2 sequence file (.fasta)
+    >>> ct.url_sequence
+    https://nextstrain-data.s3.amazonaws.com/files/ncov/open/sequences.fasta.zst?versionId=d66Hn1T0eFMAg8osEh8Yrod.QEUBRxvu'
+
+    # URL to the metadata that describes the sequences in the above file
+    >>> ct.url.sequence_metadata
+    'https://nextstrain-data.s3.amazonaws.com/files/ncov/open/metadata.tsv.zst?versionId=JTXXFlKyyvt9AerxKMwoZflhFYQFrDek'
+
+    # Metadata about the nextstrain data pipeline that created generated the sequence file and its metadata
+    >>> ct.ncov_metadata
+    {'schema_version': 'v1',
+    'nextclade_version': 'nextclade 3.8.2',
+    'nextclade_dataset_name': 'SARS-CoV-2',
+    'nextclade_dataset_version': '2024-09-25--21-50-30Z',
+    'nextclade_tsv_sha256sum': '5b0f2b64bfe694a3c96bd5a116de8fae23b144bfd3d22da774d4bfe9a84399c3',
+    'metadata_tsv_sha256sum': '1dc6a4204039e5c69eed84583faf75bbec1629e531dc99aab5bd566d3fb28295'}
+
+
+Working with SARS-CoV-2 sequence metadata
+------------------------------------------
+
+The CladeTime class also provides a Polars LazyFrame object that points to the Nextstrain's sequence metadata file.
+This file is in .tsv format and contains information about the sequences, such as their collection date,
+host, and location.
+
+The metadata also includes a clade assignment for each sequence. Nextstrain assigns clades based on a reference tree,
+and the reference tree varies over time.
+
+.. code-block:: python
+
+    >>> import polars as pl
+    >>> from cladetime import CladeTime
+
+    >>> ct = CladeTime()
+
+    # ct contains a Polars LazyFrame that references the sequence metadata .tsv file on AWS S3
+    >>> lf = ct.sequence_metadata
+    >>> lf
+    <LazyFrame at 0x105341190>
+
+
+Getting historical SARS-CoV-2 sequence metadata
+------------------------------------------------
+
+A CladeTime instance created without parameters will reference the most
+recent data available from Nextstrain.
+
+To access sequence metadata at a specific point in time, pass a date string
+in the format 'YYYY-MM-DD' to the CladeTime constructor. Alternately, you pass
+a Python datetime object. Both will be treated as UTC dates/times.
+
+.. code-block:: python
+
+    >>> from cladetime import CladeTime
+
+    >>> ct = CladeTime(sequence_as_of="2024-08-02")
+
+    # ct operations now reference the version of the sequence metadata
+    # that was available at midnight UTC on August 2, 2024.
+    >>> ct.sequence_metadata \
+    ...     .cast({"date": pl.Date}, strict=False) \
+    ...     .select(pl.max("date")).collect()
+
+    shape: (1, 1)
+    ┌────────────┐
+    │ date       │
+    │ ---        │
+    │ date       │
+    ╞════════════╡
+    │ 2024-07-23 │
+    └────────────┘
+

pyproject.toml

@@ -10,7 +10,11 @@ authors = [
 
 requires-python = ">=3.11"
 readme = "README.md"
-license = {text = "MIT"}
+
+classifiers = [
+  "Development Status :: 3 - Alpha",
+  "License :: OSI Approved :: MIT License",
+]
 
 dependencies = [
     "awscli>=1.32.92",
@@ -41,9 +45,20 @@ dev = [
     "types-python-dateutil",
     "types-requests",
 ]
+docs = [
+    "furo",
+    "matplotlib",
+    "myst-parser",
+    "sphinx>=5.0,<6.0",
+    "sphinx-copybutton",
+    "sphinx-github-style",
+    "sphinxext-opengraph",
+    ]
 
 [project.urls]
 Repository = "https://github.com/reichlab/cladetime.git"
+Documentation = "https://cladetime.readthedocs.io/"
+Issues = "https://github.com/reichlab/cladetime/issues"
 
 [project.entry-points."console_scripts"]
 assign_clades = "cladetime.assign_clades:main"