docs/BUILD.bazel

# Copyright 2023 The Bazel Authors. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

load("@bazel_skylib//:bzl_library.bzl", "bzl_library")
load("@dev_pip//:requirements.bzl", "requirement")
load("//python/private:bzlmod_enabled.bzl", "BZLMOD_ENABLED")  # buildifier: disable=bzl-visibility
load("//python/private:util.bzl", "IS_BAZEL_7_OR_HIGHER")  # buildifier: disable=bzl-visibility
load("//python/uv/private:lock.bzl", "lock")  # buildifier: disable=bzl-visibility
load("//sphinxdocs:readthedocs.bzl", "readthedocs_install")
load("//sphinxdocs:sphinx.bzl", "sphinx_build_binary", "sphinx_docs")
load("//sphinxdocs:sphinx_docs_library.bzl", "sphinx_docs_library")
load("//sphinxdocs:sphinx_stardoc.bzl", "sphinx_stardoc", "sphinx_stardocs")

package(default_visibility = ["//:__subpackages__"])

licenses(["notice"])  # Apache 2.0

# We only build for Linux and Mac because:
# 1. The actual doc process only runs on Linux
# 2. Mac is a common development platform, and is close enough to Linux
#    it's feasible to make work.
# Making CI happy under Windows is too much of a headache, though, so we don't
# bother with that.
_TARGET_COMPATIBLE_WITH = select({
    "@platforms//os:linux": [],
    "@platforms//os:macos": [],
    "//conditions:default": ["@platforms//:incompatible"],
}) if IS_BAZEL_7_OR_HIGHER else ["@platforms//:incompatible"]

# See README.md for instructions. Short version:
# * `bazel run //docs:docs.serve` in a separate terminal
# * `ibazel build //docs:docs` to automatically rebuild docs
sphinx_docs(
    name = "docs",
    srcs = glob(
        include = [
            "*.md",
            "**/*.md",
            "_static/**",
            "_includes/**",
        ],
        exclude = [
            "README.md",
            "_*",
            "*.inv*",
        ],
    ),
    config = "conf.py",
    formats = [
        "html",
    ],
    renamed_srcs = {
        "//:CHANGELOG.md": "changelog.md",
        "//:CONTRIBUTING.md": "contributing.md",
        "//sphinxdocs/inventories:bazel_inventory": "bazel_inventory.inv",
    },
    sphinx = ":sphinx-build",
    strip_prefix = package_name() + "/",
    tags = ["docs"],
    target_compatible_with = _TARGET_COMPATIBLE_WITH,
    deps = [
        ":bzl_api_docs",
        ":py_api_srcs",
        ":py_runtime_pair",
        "//sphinxdocs/docs:docs_lib",
    ],
)

sphinx_stardocs(
    name = "bzl_api_docs",
    srcs = [
        "//python:defs_bzl",
        "//python:packaging_bzl",
        "//python:pip_bzl",
        "//python:py_binary_bzl",
        "//python:py_cc_link_params_info_bzl",
        "//python:py_exec_tools_info_bzl",
        "//python:py_exec_tools_toolchain_bzl",
        "//python:py_executable_info_bzl",
        "//python:py_library_bzl",
        "//python:py_runtime_bzl",
        "//python:py_runtime_info_bzl",
        "//python:py_test_bzl",
        "//python:repositories_bzl",
        "//python/api:api_bzl",
        "//python/cc:py_cc_toolchain_bzl",
        "//python/cc:py_cc_toolchain_info_bzl",
        "//python/entry_points:py_console_script_binary_bzl",
        "//python/private:py_binary_rule_bazel_bzl",
        "//python/private:py_cc_toolchain_rule_bzl",
        "//python/private:py_library_rule_bazel_bzl",
        "//python/private:py_runtime_rule_bzl",
        "//python/private:py_test_rule_bazel_bzl",
        "//python/private/api:py_common_api_bzl",
    ] + ([
        # Bazel 6 + Stardoc isn't able to parse something about the python bzlmod extension
        "//python/extensions:python_bzl",
    ] if IS_BAZEL_7_OR_HIGHER else []) + ([
        # This depends on @pythons_hub, which is only created under bzlmod,
        "//python/extensions:pip_bzl",
    ] if IS_BAZEL_7_OR_HIGHER and BZLMOD_ENABLED else []),
    prefix = "api/rules_python/",
    tags = ["docs"],
    target_compatible_with = _TARGET_COMPATIBLE_WITH,
)

sphinx_stardoc(
    name = "py_runtime_pair",
    src = "//python/private:py_runtime_pair_rule_bzl",
    prefix = "api/rules_python/",
    tags = ["docs"],
    target_compatible_with = _TARGET_COMPATIBLE_WITH,
)

sphinx_docs_library(
    name = "py_api_srcs",
    srcs = [
        "//python/runfiles",
    ],
    strip_prefix = "python/",
)

readthedocs_install(
    name = "readthedocs_install",
    docs = [":docs"],
    target_compatible_with = _TARGET_COMPATIBLE_WITH,
)

sphinx_build_binary(
    name = "sphinx-build",
    target_compatible_with = _TARGET_COMPATIBLE_WITH,
    deps = [
        requirement("sphinx"),
        requirement("sphinx_rtd_theme"),
        requirement("myst_parser"),
        requirement("readthedocs_sphinx_ext"),
        requirement("typing_extensions"),
        requirement("sphinx_autodoc2"),
        requirement("sphinx_reredirects"),
        "//sphinxdocs/src/sphinx_bzl",
    ],
)

# Run bazel run //docs:requirements.update
lock(
    name = "requirements",
    srcs = ["pyproject.toml"],
    out = "requirements.txt",
    upgrade = True,
    visibility = ["//private:__pkg__"],
)

# Temporary compatibility aliases for some other projects depending on the old
# bzl_library targets.
alias(
    name = "defs",
    actual = "//python:defs_bzl",
    deprecation = "Use //python:defs_bzl instead; targets under //docs are internal.",
    visibility = ["//visibility:public"],
)

alias(
    name = "bazel_repo_tools",
    actual = "//python/private:bazel_tools_bzl",
    deprecation = "Use @bazel_tools//tools:bzl_srcs instead; targets under //docs are internal.",
    visibility = ["//visibility:public"],
)

bzl_library(
    name = "pip_install_bzl",
    deprecation = "Use //python:pip_bzl or //python/pip_install:pip_repository_bzl instead; " +
                  "targets under //docs are internal.",
    visibility = ["//visibility:public"],
    deps = [
        "//python:pip_bzl",
        "//python/pip_install:pip_repository_bzl",
    ],
)

alias(
    name = "requirements_parser_bzl",
    actual = "//python/pip_install:pip_repository_bzl",
    deprecation = "Use //python/pip_install:pip_repository_bzl instead; Both the requirements " +
                  "parser and targets under //docs are internal",
    visibility = ["//visibility:public"],
)