chore: remove Git LFS and refresh documentation (alibaba#456)

Author: zjw1111

.devcontainer/centos7/Dockerfile

@@ -33,7 +33,6 @@
 #   scl enable devtoolset-11 rh-python38 -- bash        # activate modern gcc + python
 #   source /opt/paimon-env.sh                           # PATH for rust, cmake
 #   cd /workspaces/paimon-cpp
-#   git lfs install --local && git lfs pull             # critical: boost & friends are LFS
 #
 # Run ./.devcontainer/centos7/run.sh smoke from the host for the full check.
 
@@ -91,7 +90,7 @@ enabled=0\n' > /etc/yum.repos.d/CentOS-Base.repo \
     && yum makecache
 
 # ---------- Base toolchain ----------
-# EPEL provides git-lfs, ninja-build, a newer python3 than the base 3.6.
+# EPEL provides ninja-build and a newer python3 than the base 3.6.
 # SCL (Software Collections) provides devtoolset-11 (gcc 11) and rh-python38
 # without overriding the system gcc/python. CentOS 7's default gcc 4.8 is
 # too old for C++17/20 used by lucene++ and our tantivy wrapper.
@@ -129,7 +128,6 @@ enabled=1\n' > /etc/yum.repos.d/CentOS-SCLo-scl.repo \
         rh-python38 \
         rh-python38-python-pip \
         git \
-        git-lfs \
         ninja-build \
         make \
         patch \

.devcontainer/centos7/run.sh

@@ -98,8 +98,6 @@ case "${cmd}" in
             "${CONTAINER}" bash -lc '
             set -eux
             cd /workspaces/paimon-cpp
-            git lfs install --local
-            git lfs pull
             cmake -S . -B build-centos7 \
                 -G Ninja \
                 -DCMAKE_BUILD_TYPE=Release \

.gitattributes

@@ -42,7 +42,7 @@ jobs:
       - name: Install dependencies
         run: |
           apt-get update
-          DEBIAN_FRONTEND=noninteractive apt-get install -y gcc-8 g++-8 ninja-build git git-lfs tar curl libcurl4-openssl-dev libssl-dev tzdata zip unzip pkg-config build-essential python3-dev gdb sudo
+          DEBIAN_FRONTEND=noninteractive apt-get install -y gcc-8 g++-8 ninja-build git tar curl libcurl4-openssl-dev libssl-dev tzdata zip unzip pkg-config build-essential python3-dev gdb sudo
           curl -L -O https://github.com/Kitware/CMake/releases/download/v3.28.3/cmake-3.28.3-linux-x86_64.tar.gz
           tar -zxvf cmake-3.28.3-linux-x86_64.tar.gz -C /usr/local --strip-components=1
           rm cmake-3.28.3-linux-x86_64.tar.gz
@@ -57,8 +57,6 @@ jobs:
           ls -la
       - name: Checkout paimon-cpp
         uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1
-        with:
-          lfs: true
       - name: Setup ccache
         uses: ./.github/actions/setup-ccache
         with:

.github/workflows/gcc8_test.yaml

@@ -16,6 +16,7 @@
 build
 build-*/
 output
+release
 
 # IDE settings
 .idea

.gitignore

@@ -79,7 +79,6 @@ Before submitting, please verify:
 - **C++17** compatible compiler (GCC recommended)
 - **CMake** ≥ 3.16
 - **Python 3** (for linting scripts and pre-commit)
-- **git-lfs** (the repository uses Git LFS for large files)
 
 ---
 

CONTRIBUTING.md

@@ -219,6 +219,7 @@ This product includes code from Apache Iceberg C++.
 * Dev Container utilities:
   * .devcontainer/Dockerfile.template
   * .devcontainer/devcontainer.json.template
+  * .devcontainer/x86_64/devcontainer.json.template
 * CI utilities:
   * .pre-commit-config.yaml
 * Avro direct decoder/encoder:
@@ -234,6 +235,28 @@ License: https://www.apache.org/licenses/LICENSE-2.0
 
 --------------------------------------------------------------------------------
 
+This product includes code based on Apache Spark.
+
+* Variant utilities:
+  * src/paimon/common/data/variant/generic_variant.cpp
+  * src/paimon/common/data/variant/generic_variant.h
+  * src/paimon/common/data/variant/variant_binary_util.cpp
+  * src/paimon/common/data/variant/variant_binary_util.h
+  * src/paimon/common/data/variant/variant_builder.cpp
+  * src/paimon/common/data/variant/variant_builder.h
+  * src/paimon/common/data/variant/variant_reassembler.cpp
+  * src/paimon/common/data/variant/variant_reassembler.h
+  * src/paimon/common/data/variant/variant_schema.h
+  * src/paimon/common/data/variant/variant_shredding_utils.cpp
+  * src/paimon/common/data/variant/variant_shredding_writer.cpp
+  * src/paimon/common/data/variant/variant_shredding_writer.h
+
+Copyright: 2014 and onwards The Apache Software Foundation.
+Home page: https://spark.apache.org/
+License: https://www.apache.org/licenses/LICENSE-2.0
+
+--------------------------------------------------------------------------------
+
 This product includes code based on Google Guava.
 
 * Preconditions utility in src/paimon/common/utils/preconditions.h

LICENSE

@@ -24,6 +24,11 @@ Copyright 2024-2025 The Apache Software Foundation
 
 --------------------------------------------------------------------------------
 
+Apache Spark
+Copyright 2014 and onwards The Apache Software Foundation.
+
+--------------------------------------------------------------------------------
+
 Apache ORC
 Copyright 2013 and onwards The Apache Software Foundation.
 

NOTICE

@@ -134,12 +134,9 @@ The reading is divided into two stages:
 
 ### Clone the Repository
 
-If you don't have `git-lfs` installed, please install it first.
-
-```
-$ git clone https://github.com/alibaba/paimon-cpp.git
-$ cd paimon-cpp
-$ git lfs pull
+```bash
+git clone https://github.com/alibaba/paimon-cpp.git
+cd paimon-cpp
 ```
 
 ### CMake

README.md

@@ -2,6 +2,6 @@
     {
         "name": "0.10.0 (dev)",
         "version": "dev/",
-        "url": "#"
+        "url": "https://alibaba.github.io/paimon-cpp/"
     }
 ]