Migrate/add an API documentation site based on MkDocs

Includes version selector and auto-deployment to GitHub Pages

.github/workflows/deploy-docs.yml

@@ -0,0 +1,33 @@
+name: Deploy docs
+on:
+  push:
+  pull_request:
+    branches: [master]
+jobs:
+  build:
+    name: Deploy docs
+    runs-on: ubuntu-latest
+    steps:
+      - name: Download source
+        uses: actions/checkout@v2
+        with:
+          fetch-depth: 0  # Prevent shallow clone
+      - name: Install Crystal
+        uses: oprypin/install-crystal@v1
+      - name: Install Python
+        uses: actions/setup-python@v2
+      - name: Install Python libs
+        run: |
+          pip install --no-deps -r docs/requirements.txt
+      - name: Configure Git
+        run: |
+          git config user.name 'github-actions[bot]'
+          git config user.email 'github-actions[bot]@users.noreply.github.com'
+      - name: Build site
+        run: |
+          mkdocs build --strict
+      - name: Deploy to gh-pages
+        if: startsWith(github.ref, 'refs/tags/v')
+        run: |
+          mike deploy --push --update-aliases --prefix=api "${GITHUB_REF#refs/tags/v}" latest
+          mike set-default --push --prefix=api "${GITHUB_REF#refs/tags/v}"

.gitignore

@@ -1,4 +1,3 @@
-/docs/
 /lib/
 /bin/
 /.shards/
@@ -8,3 +7,4 @@
 # Dependencies will be locked in application that uses them
 /shard.lock
 
+/site/

docs/SUMMARY.md

@@ -0,0 +1,50 @@
+* [Home](README.md)
+    * [DB module](DB.md)
+* Connection & session
+    * [Database](DB/Database.md)
+    * [ConnectionContext](DB/ConnectionContext.md)
+    * [Connection](DB/Connection.md)
+    * [Pool](DB/Pool.md)
+        * [Stats](DB/Pool/Stats.md)
+    * [SessionMethods](DB/SessionMethods.md)
+        * [PreparedQuery](DB/SessionMethods/PreparedQuery.md)
+        * [UnpreparedQuery](DB/SessionMethods/UnpreparedQuery.md)
+* Transaction
+    * [Transaction](DB/Transaction.md)
+    * [TopLevelTransaction](DB/TopLevelTransaction.md)
+    * [SavePointTransaction](DB/SavePointTransaction.md)
+    * [BeginTransaction](DB/BeginTransaction.md)
+    * [QueryMethods](DB/QueryMethods.md)
+        * [ExecResult](DB/ExecResult.md)
+    * [ResultSet](DB/ResultSet.md)
+* Statement
+    * [Statement](DB/Statement.md)
+    * [PoolStatement](DB/PoolStatement.md)
+        * [PoolUnpreparedStatement](DB/PoolUnpreparedStatement.md)
+        * [PoolPreparedStatement](DB/PoolPreparedStatement.md)
+    * [StatementMethods](DB/StatementMethods.md)
+* Driver
+    * [Driver](DB/Driver.md)
+    * [DriverSpecs](DB/DriverSpecs.md)
+        * [ColumnDef](DB/DriverSpecs/ColumnDef.md)
+    * [MetadataValueConverter](DB/MetadataValueConverter.md)
+* Serialization
+    * [Serializable](DB/Serializable.md)
+        * [NonStrict](DB/Serializable/NonStrict.md)
+    * [Field](DB/Field.md)
+    * [Mappable](DB/Mappable.md)
+* Miscellaneous
+    * [Any](DB/Any.md)
+    * [StringKeyCache](DB/StringKeyCache.md)
+    * [Disposable](DB/Disposable.md)
+* Errors
+    * [Error](DB/Error.md)
+    * [NoResultsError](DB/NoResultsError.md)
+    * [Rollback](DB/Rollback.md)
+    * [MappingException](DB/MappingException.md)
+    * [PoolResourceLost](DB/PoolResourceLost.md)
+        * [ConnectionLost](DB/ConnectionLost.md)
+    * [PoolResourceRefused](DB/PoolResourceRefused.md)
+        * [ConnectionRefused](DB/ConnectionRefused.md)
+    * [PoolRetryAttemptsExceeded](DB/PoolRetryAttemptsExceeded.md)
+    * [PoolTimeout](DB/PoolTimeout.md)

docs/gen_doc_stubs.py

@@ -0,0 +1,18 @@
+# Generate virtual doc files for the mkdocs site.
+# You can also run this script directly to actually write out those files, as a preview.
+
+import mkdocs_gen_files
+
+# Get the documentation root object
+root = mkdocs_gen_files.config['plugins']['mkdocstrings'].get_handler('crystal').collector.root
+
+# For each type (e.g. "Foo::Bar")
+for typ in root.walk_types():
+    # Use the file name "Foo/Bar.md"
+    filename = '/'.join(typ.abs_id.split('::')) + '.md'
+    # Make a file with the content "# ::: Foo::Bar\n"
+    with mkdocs_gen_files.open(filename, 'w') as f:
+        print(f'# ::: {typ.abs_id}', file=f)
+
+with mkdocs_gen_files.open('README.md', 'w') as f, open('README.md') as in_f:
+    f.write(in_f.read())

docs/requirements.in

@@ -0,0 +1,6 @@
+mkdocs-material
+mkdocstrings-crystal
+mkdocs-gen-files
+mkdocs-literate-nav
+mkdocs-section-index
+git+https://github.com/jimporter/mike.git@7cff0cc9bd434ff2db8d7c8c945d2a6befcba85f

docs/requirements.txt

@@ -0,0 +1,97 @@
+#
+# This file is autogenerated by pip-compile
+# To update, run:
+#
+#    pip-compile requirements.in
+#
+cached-property==1.5.2
+    # via mkdocstrings-crystal
+click==7.1.2
+    # via
+    #   mkdocs
+    #   nltk
+future==0.18.2
+    # via lunr
+glob2==0.7
+    # via mkdocs-literate-nav
+jinja2==2.11.3
+    # via
+    #   mike
+    #   mkdocs
+    #   mkdocstrings
+    #   mkdocstrings-crystal
+joblib==1.0.1
+    # via nltk
+livereload==2.6.3
+    # via mkdocs
+lunr[languages]==0.5.8
+    # via mkdocs
+markdown==3.3.4
+    # via
+    #   mkdocs
+    #   mkdocs-autorefs
+    #   mkdocs-material
+    #   mkdocstrings
+    #   pymdown-extensions
+markupsafe==1.1.1
+    # via
+    #   jinja2
+    #   mkdocstrings
+    #   mkdocstrings-crystal
+git+https://github.com/jimporter/mike.git@7cff0cc9bd434ff2db8d7c8c945d2a6befcba85f
+    # via -r requirements.in
+mkdocs-autorefs==0.1.1
+    # via mkdocstrings
+mkdocs-gen-files==0.3.1
+    # via -r requirements.in
+mkdocs-literate-nav==0.3.0
+    # via -r requirements.in
+mkdocs-material-extensions==1.0.1
+    # via mkdocs-material
+mkdocs-material==7.0.3
+    # via
+    #   -r requirements.in
+    #   mkdocs-material-extensions
+mkdocs-section-index==0.2.3
+    # via -r requirements.in
+mkdocs==1.1.2
+    # via
+    #   mike
+    #   mkdocs-autorefs
+    #   mkdocs-gen-files
+    #   mkdocs-literate-nav
+    #   mkdocs-material
+    #   mkdocs-section-index
+    #   mkdocstrings
+mkdocstrings-crystal==0.3.1
+    # via -r requirements.in
+mkdocstrings==0.15.0
+    # via mkdocstrings-crystal
+nltk==3.5
+    # via lunr
+pygments==2.8.0
+    # via mkdocs-material
+pymdown-extensions==8.1.1
+    # via
+    #   mkdocs-material
+    #   mkdocstrings
+pytkdocs==0.11.0
+    # via mkdocstrings
+pyyaml==5.4.1
+    # via
+    #   mike
+    #   mkdocs
+regex==2020.11.13
+    # via nltk
+six==1.15.0
+    # via
+    #   livereload
+    #   lunr
+tornado==6.1
+    # via
+    #   livereload
+    #   mkdocs
+tqdm==4.58.0
+    # via nltk
+verspec==0.1.0
+    # via mike

mkdocs.yml

@@ -0,0 +1,42 @@
+site_name: crystal-db
+site_url: https://oprypin.github.io/crystal-db/api/
+repo_url: https://github.com/oprypin/crystal-db
+edit_uri: blob/master/docs/
+use_directory_urls: false
+
+theme:
+  name: material
+  icon:
+    repo: fontawesome/brands/github
+  features:
+    - navigation.sections
+extra:
+  version:
+    provider: mike
+
+extra_css:
+  - css/mkdocstrings.css
+
+plugins:
+  - search
+  - gen-files:
+      scripts:
+        - docs/gen_doc_stubs.py
+  - mkdocstrings:
+      default_handler: crystal
+      watch: [src]
+  - literate-nav:
+      nav_file: SUMMARY.md
+  - section-index
+  - mike:
+      canonical_version: latest
+
+markdown_extensions:
+  - pymdownx.highlight
+  - pymdownx.magiclink
+  - pymdownx.saneheaders
+  - pymdownx.superfences
+  - pymdownx.tasklist
+  - deduplicate-toc
+  - toc:
+      permalink: "#"

src/db.cr

@@ -5,6 +5,7 @@ require "log"
 # Individual database systems are supported by specific database driver shards.
 #
 # Available drivers include:
+#
 # * [crystal-lang/crystal-sqlite3](https://github.com/crystal-lang/crystal-sqlite3) for SQLite
 # * [crystal-lang/crystal-mysql](https://github.com/crystal-lang/crystal-mysql) for MySQL and MariaDB
 # * [will/crystal-pg](https://github.com/will/crystal-pg) for PostgreSQL
@@ -88,7 +89,7 @@ module DB
     alias Any = Union({{*TYPES}})
   {% end %}
 
-  # Result of a `#exec` statement.
+  # Result of a `QueryMethods#exec` statement.
   record ExecResult, rows_affected : Int64, last_insert_id : Int64
 
   # :nodoc: