[thirdparty] [pybind11] Update to pybind11-2.6.2 to fix crash on Python 3.9.

See:
* https://github.com/pybind/pybind11/releases/tag/v2.6.2
* pybind/pybind11#2657
and related:
* pytorch/pytorch@6f3aa58
* pytorch/pytorch#50014

Author: mkurdej

quasardb/pybind11/.appveyor.yml

@@ -1,70 +1,37 @@
 version: 1.0.{build}
 image:
-- Visual Studio 2017
 - Visual Studio 2015
 test: off
 skip_branch_with_pr: true
 build:
   parallel: true
 platform:
-- x64
 - x86
 environment:
   matrix:
   - PYTHON: 36
-    CPP: 14
     CONFIG: Debug
   - PYTHON: 27
-    CPP: 14
     CONFIG: Debug
-  - CONDA: 36
-    CPP: latest
-    CONFIG: Release
-matrix:
-  exclude:
-    - image: Visual Studio 2015
-      platform: x86
-    - image: Visual Studio 2015
-      CPP: latest
-    - image: Visual Studio 2017
-      CPP: latest
-      platform: x86
 install:
 - ps: |
-    if ($env:PLATFORM -eq "x64") { $env:CMAKE_ARCH = "x64" }
-    if ($env:APPVEYOR_JOB_NAME -like "*Visual Studio 2017*") {
-      $env:CMAKE_GENERATOR = "Visual Studio 15 2017"
-      $env:CMAKE_INCLUDE_PATH = "C:\Libraries\boost_1_64_0"
-      $env:CXXFLAGS = "-permissive-"
-    } else {
-      $env:CMAKE_GENERATOR = "Visual Studio 14 2015"
-    }
-    if ($env:PYTHON) {
-      if ($env:PLATFORM -eq "x64") { $env:PYTHON = "$env:PYTHON-x64" }
-      $env:PATH = "C:\Python$env:PYTHON\;C:\Python$env:PYTHON\Scripts\;$env:PATH"
-      python -W ignore -m pip install --upgrade pip wheel
-      python -W ignore -m pip install pytest numpy --no-warn-script-location
-    } elseif ($env:CONDA) {
-      if ($env:CONDA -eq "27") { $env:CONDA = "" }
-      if ($env:PLATFORM -eq "x64") { $env:CONDA = "$env:CONDA-x64" }
-      $env:PATH = "C:\Miniconda$env:CONDA\;C:\Miniconda$env:CONDA\Scripts\;$env:PATH"
-      $env:PYTHONHOME = "C:\Miniconda$env:CONDA"
-      conda --version
-      conda install -y -q pytest numpy scipy
-    }
+    $env:CMAKE_GENERATOR = "Visual Studio 14 2015"
+    if ($env:PLATFORM -eq "x64") { $env:PYTHON = "$env:PYTHON-x64" }
+    $env:PATH = "C:\Python$env:PYTHON\;C:\Python$env:PYTHON\Scripts\;$env:PATH"
+    python -W ignore -m pip install --upgrade pip wheel
+    python -W ignore -m pip install pytest numpy --no-warn-script-location pytest-timeout
 - ps: |
-    Start-FileDownload 'http://bitbucket.org/eigen/eigen/get/3.3.3.zip'
-    7z x 3.3.3.zip -y > $null
-    $env:CMAKE_INCLUDE_PATH = "eigen-eigen-67e894c6cd8f;$env:CMAKE_INCLUDE_PATH"
+    Start-FileDownload 'https://gitlab.com/libeigen/eigen/-/archive/3.3.7/eigen-3.3.7.zip'
+    7z x eigen-3.3.7.zip -y > $null
+    $env:CMAKE_INCLUDE_PATH = "eigen-3.3.7;$env:CMAKE_INCLUDE_PATH"
 build_script:
 - cmake -G "%CMAKE_GENERATOR%" -A "%CMAKE_ARCH%"
-    -DPYBIND11_CPP_STANDARD=/std:c++%CPP%
+    -DCMAKE_CXX_STANDARD=14
     -DPYBIND11_WERROR=ON
     -DDOWNLOAD_CATCH=ON
     -DCMAKE_SUPPRESS_REGENERATION=1
     .
 - set MSBuildLogger="C:\Program Files\AppVeyor\BuildAgent\Appveyor.MSBuildLogger.dll"
 - cmake --build . --config %CONFIG% --target pytest -- /m /v:m /logger:%MSBuildLogger%
 - cmake --build . --config %CONFIG% --target cpptest -- /m /v:m /logger:%MSBuildLogger%
-- if "%CPP%"=="latest" (cmake --build . --config %CONFIG% --target test_cmake_build -- /m /v:m /logger:%MSBuildLogger%)
 on_failure: if exist "tests\test_cmake_build" type tests\test_cmake_build\*.log*

quasardb/pybind11/.clang-format

@@ -0,0 +1,21 @@
+---
+# See all possible options and defaults with:
+# clang-format --style=llvm --dump-config
+BasedOnStyle: LLVM
+AccessModifierOffset: -4
+AlignConsecutiveAssignments: true
+AlwaysBreakTemplateDeclarations: Yes
+BinPackArguments: false
+BinPackParameters: false
+BreakBeforeBinaryOperators: All
+BreakConstructorInitializers: BeforeColon
+ColumnLimit: 99
+IndentCaseLabels: true
+IndentPPDirectives: AfterHash
+IndentWidth: 4
+Language: Cpp
+SpaceAfterCStyleCast: true
+# SpaceInEmptyBlock: true # too new
+Standard: Cpp11
+TabWidth: 4
+...

quasardb/pybind11/.clang-tidy

@@ -0,0 +1,13 @@
+FormatStyle: file
+
+Checks: '
+llvm-namespace-comment,
+modernize-use-override,
+readability-container-size-empty,
+modernize-use-using,
+modernize-use-equals-default,
+modernize-use-auto,
+modernize-use-emplace,
+'
+
+HeaderFilterRegex: 'pybind11/.*h'

quasardb/pybind11/.cmake-format.yaml

@@ -0,0 +1,73 @@
+parse:
+  additional_commands:
+    pybind11_add_module:
+      flags:
+        - THIN_LTO
+        - MODULE
+        - SHARED
+        - NO_EXTRAS
+        - EXCLUDE_FROM_ALL
+        - SYSTEM
+
+format:
+  line_width: 99
+  tab_size: 2
+
+  # If an argument group contains more than this many sub-groups
+  # (parg or kwarg groups) then force it to a vertical layout.
+  max_subgroups_hwrap: 2
+
+  # If a positional argument group contains more than this many
+  # arguments, then force it to a vertical layout.
+  max_pargs_hwrap: 6
+
+  # If a cmdline positional group consumes more than this many
+  # lines without nesting, then invalidate the layout (and nest)
+  max_rows_cmdline: 2
+  separate_ctrl_name_with_space: false
+  separate_fn_name_with_space: false
+  dangle_parens: false
+
+  # If the trailing parenthesis must be 'dangled' on its on
+  # 'line, then align it to this reference: `prefix`: the start'
+  # 'of the statement,  `prefix-indent`: the start of the'
+  # 'statement, plus one indentation  level, `child`: align to'
+  # the column of the arguments
+  dangle_align: prefix
+  # If the statement spelling length (including space and
+  # parenthesis) is smaller than this amount, then force reject
+  # nested layouts.
+  min_prefix_chars: 4
+
+  # If the statement spelling length (including space and
+  # parenthesis) is larger than the tab width by more than this
+  # amount, then force reject un-nested layouts.
+  max_prefix_chars: 10
+
+  # If a candidate layout is wrapped horizontally but it exceeds
+  # this many lines, then reject the layout.
+  max_lines_hwrap: 2
+
+  line_ending: unix
+
+  # Format command names consistently as 'lower' or 'upper' case
+  command_case: canonical
+
+  # Format keywords consistently as 'lower' or 'upper' case
+  # unchanged is valid too
+  keyword_case: 'upper'
+
+  # A list of command names which should always be wrapped
+  always_wrap: []
+
+  # If true, the argument lists which are known to be sortable
+  # will be sorted lexicographically
+  enable_sort: true
+
+  # If true, the parsers may infer whether or not an argument
+  # list is sortable (without annotation).
+  autosort: false
+
+# Causes a few issues - can be solved later, possibly.
+markup:
+  enable_markup: false

quasardb/pybind11/.gitignore

@@ -2,6 +2,7 @@ CMakeCache.txt
 CMakeFiles
 Makefile
 cmake_install.cmake
+cmake_uninstall.cmake
 .DS_Store
 *.so
 *.pyd
@@ -10,6 +11,7 @@ cmake_install.cmake
 *.sdf
 *.opensdf
 *.vcxproj
+*.vcxproj.user
 *.filters
 example.dir
 Win32
@@ -30,9 +32,12 @@ MANIFEST
 .*.swp
 .DS_Store
 /dist
-/build
-/cmake/
+/*build*
 .cache/
 sosize-*.txt
 pybind11Config*.cmake
 pybind11Targets.cmake
+/*env*
+/.vscode
+/pybind11/include/*
+/pybind11/share/*

quasardb/pybind11/.gitmodules

@@ -0,0 +1,100 @@
+# To use:
+#
+#     pre-commit run -a
+#
+# Or:
+#
+#     pre-commit install  # (runs every time you commit in git)
+#
+# To update this file:
+#
+#     pre-commit autoupdate
+#
+# See https://github.com/pre-commit/pre-commit
+
+repos:
+# Standard hooks
+- repo: https://github.com/pre-commit/pre-commit-hooks
+  rev: v3.4.0
+  hooks:
+  - id: check-added-large-files
+  - id: check-case-conflict
+  - id: check-merge-conflict
+  - id: check-symlinks
+  - id: check-yaml
+  - id: debug-statements
+  - id: end-of-file-fixer
+  - id: mixed-line-ending
+  - id: requirements-txt-fixer
+  - id: trailing-whitespace
+  - id: fix-encoding-pragma
+
+# Black, the code formatter, natively supports pre-commit
+- repo: https://github.com/psf/black
+  rev: 20.8b1
+  hooks:
+  - id: black
+    # By default, this ignores pyi files, though black supports them
+    types: [text]
+    files: \.pyi?$
+
+# Changes tabs to spaces
+- repo: https://github.com/Lucas-C/pre-commit-hooks
+  rev: v1.1.9
+  hooks:
+  - id: remove-tabs
+
+# Flake8 also supports pre-commit natively (same author)
+- repo: https://gitlab.com/pycqa/flake8
+  rev: 3.8.4
+  hooks:
+  - id: flake8
+    additional_dependencies: [flake8-bugbear, pep8-naming]
+    exclude: ^(docs/.*|tools/.*)$
+
+# CMake formatting
+- repo: https://github.com/cheshirekow/cmake-format-precommit
+  rev: v0.6.13
+  hooks:
+  - id: cmake-format
+    additional_dependencies: [pyyaml]
+    types: [file]
+    files: (\.cmake|CMakeLists.txt)(.in)?$
+
+# Check static types with mypy
+- repo: https://github.com/pre-commit/mirrors-mypy
+  rev: v0.800
+  hooks:
+  - id: mypy
+    # The default Python type ignores .pyi files, so let's rerun if detected
+    types: [text]
+    files: ^pybind11.*\.pyi?$
+    # Running per-file misbehaves a bit, so just run on all files, it's fast
+    pass_filenames: false
+
+# Checks the manifest for missing files (native support)
+- repo: https://github.com/mgedmin/check-manifest
+  rev: "0.46"
+  hooks:
+  - id: check-manifest
+    # This is a slow hook, so only run this if --hook-stage manual is passed
+    stages: [manual]
+    additional_dependencies: [cmake, ninja]
+
+# The original pybind11 checks for a few C++ style items
+- repo: local
+  hooks:
+  - id: disallow-caps
+    name: Disallow improper capitalization
+    language: pygrep
+    entry: PyBind|Numpy|Cmake|CCache
+    exclude: .pre-commit-config.yaml
+
+- repo: local
+  hooks:
+  - id: check-style
+    name: Classic check-style
+    language: system
+    types:
+    - c++
+    entry: ./tools/check-style.sh