Initialize Kernel Library

.editorconfig

@@ -50,15 +50,6 @@ indent_style = space
 indent_size = 2
 indent_style = space
 
-[*.go]
-indent_size = 8
-indent_style = tab
-tab_width = 8
-
-[*.{js,ts}]
-indent_size = 4
-indent_style = space
-
 [*.{py,pyx,pxd,pxi}]
 indent_size = 4
 indent_style = space

.env

@@ -65,7 +65,7 @@ KARTOTHEK=latest
 # LLVM 12 and GCC 11 reports -Wmismatched-new-delete.
 LLVM=18
 MAVEN=3.8.7
-NODE=18
+NODE=20
 NUMBA=latest
 NUMPY=latest
 PANDAS=latest

.github/CODEOWNERS

@@ -34,16 +34,12 @@
 /cpp/src/arrow/flight/ @lidavidm
 /cpp/src/parquet @wgtmac
 /csharp/ @curthagenlocher
-/go/ @zeroshade
-/java/ @lidavidm
-/js/ @domoritz @trxcllnt
 /matlab/ @kevingurney @kou @sgilmore10
 /python/ @AlenkaF @raulcd @rok 
 /python/pyarrow/_flight.pyx @lidavidm
 /python/pyarrow/**/*gandiva* @wjones127
 /r/ @jonkeane @thisisnic
 /ruby/ @kou
-/swift/ @kou
 
 # Docs
 # /docs/

.github/workflows/cpp.yml

@@ -29,6 +29,7 @@ on:
       - '.github/workflows/cpp.yml'
       - 'ci/conda_env_*'
       - 'ci/docker/**'
+      - 'ci/scripts/ccache_setup.sh'
       - 'ci/scripts/cpp_*'
       - 'ci/scripts/install_azurite.sh'
       - 'ci/scripts/install_gcs_testbench.sh'
@@ -45,6 +46,7 @@ on:
       - '.github/workflows/cpp.yml'
       - 'ci/conda_env_*'
       - 'ci/docker/**'
+      - 'ci/scripts/ccache_setup.sh'
       - 'ci/scripts/cpp_*'
       - 'ci/scripts/install_azurite.sh'
       - 'ci/scripts/install_gcs_testbench.sh'
@@ -474,6 +476,10 @@ jobs:
           PIPX_BASE_PYTHON: ${{ steps.python-install.outputs.python-path }}
         run: |
           ci/scripts/install_gcs_testbench.sh default
+      - name: Register Flight SQL ODBC Driver
+        shell: cmd
+        run: |
+          call "cpp\src\arrow\flight\sql\odbc\install\install_amd64.cmd" ${{github.workspace}}\build\cpp\%ARROW_BUILD_TYPE%\libarrow_flight_sql_odbc.dll
       - name: Test
         shell: msys2 {0}
         run: |

.github/workflows/cpp_extra.yml

@@ -27,6 +27,7 @@ on:
       - '.github/workflows/cpp_extra.yml'
       - 'ci/conda_env_*'
       - 'ci/docker/**'
+      - 'ci/scripts/ccache_setup.sh'
       - 'ci/scripts/cpp_*'
       - 'ci/scripts/install_azurite.sh'
       - 'ci/scripts/install_gcs_testbench.sh'
@@ -45,6 +46,7 @@ on:
       - '.github/workflows/cpp_extra.yml'
       - 'ci/conda_env_*'
       - 'ci/docker/**'
+      - 'ci/scripts/ccache_setup.sh'
       - 'ci/scripts/cpp_*'
       - 'ci/scripts/install_azurite.sh'
       - 'ci/scripts/install_gcs_testbench.sh'

.github/workflows/dev.yml

@@ -41,52 +41,32 @@ jobs:
 
   lint:
     name: Lint C++, Python, R, Docker, RAT
-    runs-on: ubuntu-24.04
+    # Use Ubuntu 22.04 to ensure working pre-commit on Ubuntu 22.04.
+    runs-on: ubuntu-22.04
     if: ${{ !contains(github.event.pull_request.title, 'WIP') }}
     timeout-minutes: 15
     steps:
       - name: Checkout Arrow
         uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac # v4.0.0
         with:
           fetch-depth: 0
-      - name: Setup Python
-        uses: actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065 # v5.6.0
-        with:
-          python-version: 3.12
-      - uses: r-lib/actions/setup-r@bd49c52ffe281809afa6f0fecbf37483c5dd0b93 # v2.11.3
       - name: Install pre-commit
         run: |
-          python -m pip install pre-commit
-          pre-commit run --show-diff-on-failure --color=always
+          sudo apt update
+          sudo apt install -y -V \
+            pre-commit \
+            r-base \
+            ruby-dev
       - name: Cache pre-commit
         uses: actions/cache@v4
         with:
-          path: ~/.cache/pre-commit
+          path: |
+            ~/.cache/pre-commit
+            ~/.local/share/renv/cache
           key: pre-commit-${{ hashFiles('.pre-commit-config.yaml') }}
       - name: Run pre-commit
         run: |
           pre-commit run --all-files --color=always --show-diff-on-failure
-      - name: Setup Archery
-        run: pip install -e dev/archery[docker]
-      - name: Execute Docker Build
-        env:
-          ARCHERY_DOCKER_USER: ${{ secrets.DOCKERHUB_USER }}
-          ARCHERY_DOCKER_PASSWORD: ${{ secrets.DOCKERHUB_TOKEN }}
-          UBUNTU: 22.04
-        run: |
-          source ci/scripts/util_enable_core_dumps.sh
-          archery docker run -e GITHUB_ACTIONS=true ubuntu-lint
-      - name: Docker Push
-        if: >-
-          success() &&
-          github.event_name == 'push' &&
-          github.repository == 'apache/arrow' &&
-          github.ref_name == 'main'
-        env:
-          ARCHERY_DOCKER_USER: ${{ secrets.DOCKERHUB_USER }}
-          ARCHERY_DOCKER_PASSWORD: ${{ secrets.DOCKERHUB_TOKEN }}
-        continue-on-error: true
-        run: archery docker push ubuntu-lint
 
   release:
     name: Source Release and Merge Script on ${{ matrix.runs-on }}

.github/workflows/dev_pr/labeler.yml

@@ -30,16 +30,6 @@
   - any-glob-to-any-file:
     - csharp/**/*
 
-"Component: Go":
-- changed-files:
-  - any-glob-to-any-file:
-    - go/**/*
-
-"Component: JavaScript":
-- changed-files:
-  - any-glob-to-any-file:
-    - js/**/*
-
 "Component: MATLAB":
 - changed-files:
   - any-glob-to-any-file:
@@ -60,11 +50,6 @@
   - any-glob-to-any-file:
     - ruby/**/*
 
-"Component: Swift":
-- changed-files:
-  - any-glob-to-any-file:
-    - swift/**/*
-
 "Component: FlightRPC":
 - changed-files:
   - any-glob-to-any-file:

.github/workflows/r.yml

@@ -331,24 +331,6 @@ jobs:
             check_dir = 'check',
             timeout = 3600
           )
-      - name: Run lintr
-        if: ${{ matrix.config.rversion == 'release' }}
-        env:
-          NOT_CRAN: "true"
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-        shell: Rscript {0}
-        working-directory: r
-        run: |
-          Sys.setenv(
-            RWINLIB_LOCAL = file.path(Sys.getenv("GITHUB_WORKSPACE"), "r", "windows", "libarrow.zip"),
-            MAKEFLAGS = paste0("-j", parallel::detectCores()),
-            ARROW_R_DEV = TRUE,
-            "_R_CHECK_FORCE_SUGGESTS_" = FALSE
-          )
-          # we use pak for package installation since it is faster, safer and more convenient
-          pak::local_install()
-          pak::pak("lintr")
-          lintr::expect_lint_free()
       - name: Dump install logs
         shell: cmd
         run: cat r/check/arrow.Rcheck/00install.out

.github/workflows/ruby.yml

@@ -29,6 +29,7 @@ on:
       - '.github/workflows/ruby.yml'
       - 'ci/docker/**'
       - 'ci/scripts/c_glib_*'
+      - 'ci/scripts/ccache_setup.sh'
       - 'ci/scripts/cpp_*'
       - 'ci/scripts/msys2_*'
       - 'ci/scripts/ruby_*'
@@ -43,6 +44,7 @@ on:
       - '.github/workflows/ruby.yml'
       - 'ci/docker/**'
       - 'ci/scripts/c_glib_*'
+      - 'ci/scripts/ccache_setup.sh'
       - 'ci/scripts/cpp_*'
       - 'ci/scripts/msys2_*'
       - 'ci/scripts/ruby_*'

.github/workflows/verify_rc.yml

@@ -198,7 +198,7 @@ jobs:
       - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
         with:
           submodules: recursive
-      - uses: conda-incubator/setup-miniconda@505e6394dae86d6a5c7fbb6e3fb8938e3e863830 # v3.1.1
+      - uses: conda-incubator/setup-miniconda@835234971496cad1653abb28a638a281cf32541f # v3.2.0
       - name: Install System Dependencies
         run: |
           choco install --no-progress --yes boost-msvc-14.1

.pre-commit-config.yaml

@@ -77,6 +77,7 @@ repos:
         alias: cpp
         name: C++ Lint
         args:
+          - "--quiet"
           - "--verbose=2"
         types_or:
           - c++
@@ -196,8 +197,9 @@ repos:
         additional_dependencies:
           - cyclocomp
           - lintr
+          - testthat
         entry: |
-          Rscript r/tools/lint.R
+          Rscript -e "Sys.setenv(NOT_CRAN = 'TRUE'); lintr::expect_lint_free('r')"
         pass_filenames: false
         files: >-
           ^r/.*\.(R|Rmd)$
@@ -299,7 +301,10 @@ repos:
           ?^c_glib/test/run-test\.sh$|
           ?^ci/scripts/c_glib_build\.sh$|
           ?^ci/scripts/c_glib_test\.sh$|
+          ?^ci/scripts/ccache_setup\.sh$|
+          ?^ci/scripts/conan_build\.sh$|
           ?^ci/scripts/conan_setup\.sh$|
+          ?^ci/scripts/cpp_test\.sh$|
           ?^ci/scripts/csharp_build\.sh$|
           ?^ci/scripts/csharp_pack\.sh$|
           ?^ci/scripts/download_tz_database\.sh$|
@@ -353,7 +358,10 @@ repos:
           ?^swift/gen-protobuffers\.sh$|
           )
   - repo: https://github.com/scop/pre-commit-shfmt
-    rev: v3.11.0-1
+    # v3.11.0-1 or later requires pre-commit 3.2.0 or later but Ubuntu
+    # 22.04 ships pre-commit 2.17.0. We can use update this rev after
+    # Ubuntu 22.04 reached EOL (June 2027).
+    rev: v3.10.0-1
     hooks:
       - id: shfmt
         alias: shell

LICENSE.txt

@@ -783,16 +783,6 @@ License: http://www.apache.org/licenses/LICENSE-2.0
 
 --------------------------------------------------------------------------------
 
-This project includes code from the Google styleguide.
-
-* cpp/build-support/cpplint.py is based on the scripts from the Google styleguide.
-
-Copyright: 2009 Google Inc. All rights reserved.
-Homepage: https://github.com/google/styleguide
-License: 3-clause BSD
-
---------------------------------------------------------------------------------
-
 This project includes code from Snappy.
 
 * cpp/cmake_modules/{SnappyCMakeLists.txt,SnappyConfig.h} are based on code
@@ -2292,7 +2282,7 @@ OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 THE SOFTWARE.
 
 --------------------------------------------------------------------------------
-The files cpp/src/arrow/vendored/whereami/whereami.h, 
+The files cpp/src/arrow/vendored/whereami/whereami.h,
 cpp/src/arrow/vendored/whereami/whereami.cc are adapted from
 Grégory Pakosz's whereami library (https://github.com/gpakosz/whereami)
 It is dual licensed under both the WTFPLv2 and MIT licenses.

NOTICE.txt

@@ -17,9 +17,6 @@ https://github.com/libdynd
 This product includes software from the LLVM project
  * distributed under the University of Illinois Open Source
 
-This product includes software from the google-lint project
- * Copyright (c) 2009 Google Inc. All rights reserved.
-
 This product includes software from the mman-win32 project
  * Copyright https://code.google.com/p/mman-win32/
  * Licensed under the MIT License;