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| 1 | +# Handles merging mkdocs config in a way the native inheritance feature doesn't quite cover |
| 2 | +# |
| 3 | +# This relies on a key in "extra.overrides" |
| 4 | +# Valid keys are `custom_dir: str` and `hooks: [-path/to.py, -path/to.py]`, e.g. |
| 5 | +# |
| 6 | +# ```yml |
| 7 | +# extra: |
| 8 | +# overrides: |
| 9 | +# custom_dir: overrides |
| 10 | +# extra_css: |
| 11 | +# - docs/_global/css/global.css |
| 12 | +# - docs/_global/css/global-syntax-highlight.css |
| 13 | +# extra_javascript: |
| 14 | +# - docs/_global/js/global.js |
| 15 | +# hooks: |
| 16 | +# - hooks/local_override.py |
| 17 | +# - hooks/local_override2.py |
| 18 | +# not_in_nav: |
| 19 | +# - gitignore_style/path/to/exclude |
| 20 | +# theme_features: |
| 21 | +# - theme.feature1 |
| 22 | +# - theme.feature2 |
| 23 | +# ``` |
| 24 | + |
| 25 | +import os |
| 26 | + |
| 27 | +from pathspec.gitignore import GitIgnoreSpec |
| 28 | + |
| 29 | +import mkdocs |
| 30 | +from mkdocs.config.defaults import MkDocsConfig |
| 31 | +from mkdocs.config.config_options import (File, FilesystemObject, Hooks, ListOfItems, PathSpec) |
| 32 | +from mkdocs.structure.files import (File as FileStructure, Files) |
| 33 | + |
| 34 | +# Load any local files into mkdocs |
| 35 | +def append_local_files(files: Files, config: MkDocsConfig, local_files: list[str]): |
| 36 | + for local_file_path in local_files: |
| 37 | + local_file = FileStructure( |
| 38 | + path= local_file_path, |
| 39 | + src_dir=config["docs_dir"] + "/../", |
| 40 | + dest_dir=config["site_dir"], |
| 41 | + use_directory_urls=False, |
| 42 | + ) |
| 43 | + |
| 44 | + files.append(local_file) |
| 45 | + |
| 46 | +# Load any override hooks |
| 47 | +def merge_local_hooks(config: MkDocsConfig, hooks: list[str]): |
| 48 | + try: |
| 49 | + paths = ListOfItems(File(exists=True)).validate(hooks) |
| 50 | + except Exception as e: |
| 51 | + raise e |
| 52 | + |
| 53 | + for name, path in zip(hooks, paths): |
| 54 | + config.plugins[name] = Hooks._load_hook(mkdocs, name, path) |
| 55 | + |
| 56 | +# Handle multiple "not in nav" entries |
| 57 | +# These are of a pathspec.gitignore.GitIgnoreSpec format and need to be converted to a multiline string |
| 58 | +def merge_local_not_in_nav(config: MkDocsConfig, not_in_nav: list[GitIgnoreSpec]): |
| 59 | + nav_str = "\n".join(not_in_nav) |
| 60 | + config["not_in_nav"] += PathSpec().run_validation(nav_str) |
| 61 | + |
| 62 | +# Add additional theme_override folder |
| 63 | +def merge_local_theme_override(config: MkDocsConfig, custom_dir: str): |
| 64 | + try: |
| 65 | + local_override_path = FilesystemObject(exists=True).validate(custom_dir) |
| 66 | + except Exception as e: |
| 67 | + raise e |
| 68 | + |
| 69 | + config.theme.dirs.insert(1, local_override_path) |
| 70 | + |
| 71 | +# Load any override theme features |
| 72 | +def merge_local_theme_features(config: MkDocsConfig, theme_features: list[str]): |
| 73 | + for local_feature in theme_features: |
| 74 | + config.theme["features"].append(local_feature) |
| 75 | + |
| 76 | + |
| 77 | + |
| 78 | +##### MkDocs Event Hooks |
| 79 | + |
| 80 | +def on_files(files: Files, config: MkDocsConfig): |
| 81 | + if "overrides" in config.extra: |
| 82 | + extra_overrides = config.extra["overrides"] |
| 83 | + |
| 84 | + if "extra_css" in extra_overrides: |
| 85 | + extra_css = extra_overrides["extra_css"] |
| 86 | + append_local_files(files, config, extra_css) |
| 87 | + |
| 88 | + if "extra_javascript" in extra_overrides: |
| 89 | + extra_javascript = extra_overrides["extra_javascript"] |
| 90 | + append_local_files(files, config, extra_javascript) |
| 91 | + |
| 92 | +def on_config(config: MkDocsConfig): |
| 93 | + if "overrides" in config.extra: |
| 94 | + extra_overrides = config.extra["overrides"] |
| 95 | + |
| 96 | + # Keep Hooks first |
| 97 | + if "hooks" in extra_overrides: |
| 98 | + hooks = extra_overrides["hooks"] |
| 99 | + merge_local_hooks(config, hooks) |
| 100 | + |
| 101 | + if "custom_dir" in extra_overrides: |
| 102 | + custom_dir = extra_overrides["custom_dir"] |
| 103 | + merge_local_theme_override(config, custom_dir) |
| 104 | + |
| 105 | + if "extra_css" in extra_overrides: |
| 106 | + extra_css = extra_overrides["extra_css"] |
| 107 | + config.extra_css.extend(extra_css) |
| 108 | + |
| 109 | + if "extra_javascript" in extra_overrides: |
| 110 | + extra_javascript = extra_overrides["extra_javascript"] |
| 111 | + config.extra_javascript.extend(extra_javascript) |
| 112 | + |
| 113 | + if "not_in_nav" in extra_overrides: |
| 114 | + not_in_nav = extra_overrides["not_in_nav"] |
| 115 | + merge_local_not_in_nav(config, not_in_nav) |
| 116 | + |
| 117 | + if "theme_features" in extra_overrides: |
| 118 | + theme_features = extra_overrides["theme_features"] |
| 119 | + merge_local_theme_features(config, theme_features) |
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