Initial import

.clang-format

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+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you 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.
+---
+BasedOnStyle: Google
+ColumnLimit: 90
+DerivePointerAlignment: false
+IncludeBlocks: Preserve

.cmake-format

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+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you 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.
+
+# cmake-format configuration file
+# Use `archery lint --cmake-format --fix` to reformat all cmake files in the
+# source tree
+
+# -----------------------------
+# Options affecting formatting.
+# -----------------------------
+with section("format"):
+    # How wide to allow formatted cmake files
+    line_width = 90
+
+    # How many spaces to tab for indent
+    tab_size = 2
+
+    # If a positional argument group contains more than this many arguments,
+    # then force it to a vertical layout.
+    max_pargs_hwrap = 4
+
+    # If the statement spelling length (including space and parenthesis) is
+    # smaller than this amount, then force reject nested layouts.
+    # This value only comes into play when considering whether or not to nest
+    # arguments below their parent. If the number of characters in the parent
+    # is less than this value, we will not nest.
+    min_prefix_chars = 32
+
+    # If true, separate flow control names from their parentheses with a space
+    separate_ctrl_name_with_space = False
+
+    # If true, separate function names from parentheses with a space
+    separate_fn_name_with_space = False
+
+    # If a statement is wrapped to more than one line, than dangle the closing
+    # parenthesis on it's own line
+    dangle_parens = False
+
+    # What style line endings to use in the output.
+    line_ending = 'unix'
+
+    # Format command names consistently as 'lower' or 'upper' case
+    command_case = 'lower'
+
+    # Format keywords consistently as 'lower' or 'upper' case
+    keyword_case = 'unchanged'
+
+# ------------------------------------------------
+# Options affecting comment reflow and formatting.
+# ------------------------------------------------
+with section("markup"):
+    # enable comment markup parsing and reflow
+    enable_markup = False
+
+    # If comment markup is enabled, don't reflow the first comment block in
+    # eachlistfile. Use this to preserve formatting of your
+    # copyright/licensestatements.
+    first_comment_is_literal = True
+
+    # If comment markup is enabled, don't reflow any comment block which
+    # matchesthis (regex) pattern. Default is `None` (disabled).
+    literal_comment_pattern = None

.gitignore

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+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you 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.
+
+apache-rat-*.jar
+arrow-src.tar
+arrow-src.tar.gz
+
+# Compiled source
+*.a
+*.dll
+*.o
+*.py[ocd]
+*.so
+*.so.*
+*.bundle
+*.dylib
+.build_cache_dir
+dependency-reduced-pom.xml
+MANIFEST
+compile_commands.json
+build.ninja
+
+# Generated Visual Studio files
+*.vcxproj
+*.vcxproj.*
+*.sln
+*.iml
+
+# Linux perf sample data
+perf.data
+perf.data.old
+
+cpp/.idea/
+.clangd/
+cpp/.clangd/
+.cache/clangd/
+cpp/.cache/clangd/
+cpp/apidoc/xml/
+docs/example.gz
+docs/example1.dat
+docs/example3.dat
+python/.eggs/
+python/doc/
+# Egg metadata
+*.egg-info
+
+.vscode
+.idea/
+.pytest_cache/
+pkgs
+docker_cache
+.gdb_history
+*.orig
+.*.swp
+.*.swo
+
+site/
+
+# R files
+**/.Rproj.user
+**/*.Rcheck/
+**/.Rhistory
+.Rproj.user
+
+# macOS
+cpp/Brewfile.lock.json
+.DS_Store
+
+# docker volumes used for caching
+.docker
+
+# generated native binaries created by java JNI build
+java-dist/
+java-native-c/
+java-native-cpp/

.pre-commit-config.yaml

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+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you 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.
+
+# To use this, install the python package `pre-commit` and
+# run once `pre-commit install`. This will setup a git pre-commit-hook
+# that is executed on each commit and will report the linting problems.
+# To run all hooks on all files use `pre-commit run -a`
+
+repos:
+  - repo: https://github.com/pocc/pre-commit-hooks
+    rev: v1.3.5
+    hooks:
+      - id: clang-format
+        args: [-i]
+        types_or: [c, c++]
+  - repo: https://github.com/cheshirekow/cmake-format-precommit
+    rev: v0.6.13
+    hooks:
+    - id: cmake-format
+      args: [--in-place, --config-files, .cmake-format]