add rocksdb subtree

Makefile

@@ -33,3 +33,6 @@ format:
 clean:
 	@cargo clean
 	@cd librocksdb_sys && cargo clean
+
+update-rocksdb:
+	@git subtree pull -P librocksdb_sys/rocksdb https://github.com/pingcap/rocksdb.git release --squash

librocksdb_sys/rocksdb/.clang-format

@@ -0,0 +1,5 @@
+# Complete list of style options can be found at: 
+# http://clang.llvm.org/docs/ClangFormatStyleOptions.html
+---
+BasedOnStyle: Google
+...

librocksdb_sys/rocksdb/.deprecated_arcconfig

@@ -0,0 +1,17 @@
+{
+  "project_id" : "rocksdb",
+  "conduit_uri" : "https://phabricator.fb.com/api/",
+  "copyright_holder" : "Facebook",
+  "load" : [
+    "arcanist_util"
+  ],
+  "lint.engine" : "FacebookFbcodeLintEngine",
+  "lint.engine.single.linter" : "FbcodeCppLinter",
+  "unit.engine" : "FacebookFbcodeUnitTestEngine",
+  "arcanist_configuration" : "FacebookArcanistConfiguration",
+  "base" : "git:HEAD^, hg:.^",
+  "git.default-relative-commit" : "HEAD^",
+  "git:arc.feature.start.default" : "origin/master",
+  "arc.feature.start.default" : "master",
+  "history.immutable" : false
+}

librocksdb_sys/rocksdb/.gitignore

@@ -0,0 +1,75 @@
+make_config.mk
+
+*.a
+*.arc
+*.d
+*.dylib*
+*.gcda
+*.gcno
+*.o
+*.so
+*.so.*
+*_test
+*_bench
+*_stress
+*.out
+*.class
+*.jar
+*.*jnilib*
+*.d-e
+*.o-*
+*.swp
+*~
+*.vcxproj
+*.vcxproj.filters
+*.sln
+*.cmake
+CMakeCache.txt
+CMakeFiles/
+build/
+
+ldb
+manifest_dump
+sst_dump
+blob_dump
+column_aware_encoding_exp
+util/build_version.cc
+build_tools/VALGRIND_LOGS/
+coverage/COVERAGE_REPORT
+.gdbhistory
+.gdb_history
+package/
+.phutil_module_cache
+unity.a
+tags
+etags
+rocksdb_dump
+rocksdb_undump
+db_test2
+
+java/out
+java/target
+java/test-libs
+java/*.log
+java/include/org_rocksdb_*.h
+
+.idea/
+*.iml
+
+rocksdb.cc
+rocksdb.h
+unity.cc
+java/crossbuild/.vagrant
+.vagrant/
+java/**/*.asc
+java/javadoc
+
+scan_build_report/
+t
+LOG
+
+db_logs/
+tp2/
+fbcode/
+fbcode
+buckifier/*.pyc

librocksdb_sys/rocksdb/.travis.yml

@@ -0,0 +1,72 @@
+sudo: false
+dist: trusty
+language: cpp
+os:
+  - linux
+  - osx
+compiler:
+  - clang
+  - gcc
+osx_image: xcode8.3
+jdk:
+  - oraclejdk7
+cache:
+  - ccache
+  - apt
+
+addons:
+   apt:
+      packages: ['zlib1g-dev', 'libbz2-dev', 'libsnappy-dev', 'curl', 'libgflags-dev', 'mingw-w64']
+env:
+  - TEST_GROUP=platform_dependent # 16-18 minutes
+  - TEST_GROUP=1 # 33-35 minutes
+  - TEST_GROUP=2 # 30-32 minutes
+  # Run java tests
+  - JOB_NAME=java_test # 4-11 minutes
+  # Build ROCKSDB_LITE
+  - JOB_NAME=lite_build # 3-4 minutes
+  # Build examples
+  - JOB_NAME=examples # 5-7 minutes
+  - JOB_NAME=cmake # 3-5 minutes
+  - JOB_NAME=cmake-mingw # 3 minutes
+
+matrix:
+  exclude:
+  - os: osx
+    env: TEST_GROUP=1
+  - os: osx
+    env: TEST_GROUP=2
+  - os : osx
+    env: JOB_NAME=cmake-mingw
+  - os : linux
+    compiler: clang
+  - os : osx
+    compiler: gcc
+
+# https://docs.travis-ci.com/user/caching/#ccache-cache
+install:
+  - if [ "${TRAVIS_OS_NAME}" == osx ]; then
+      brew install ccache;
+      PATH=$PATH:/usr/local/opt/ccache/libexec;
+    fi
+
+before_script:
+  # Increase the maximum number of open file descriptors, since some tests use
+  # more FDs than the default limit.
+  - ulimit -n 8192
+
+script:
+  - ${CXX} --version
+  - if [ "${TEST_GROUP}" == 'platform_dependent' ]; then OPT=-DTRAVIS V=1 make -j4 all; OPT=-DTRAVIS V=1 ROCKSDBTESTS_END=db_block_cache_test make -j4 check_some; fi
+  - if [ "${TEST_GROUP}" == '1' ]; then OPT=-DTRAVIS V=1 ROCKSDBTESTS_START=db_block_cache_test ROCKSDBTESTS_END=comparator_db_test make -j4 check_some; fi
+  - if [ "${TEST_GROUP}" == '2' ]; then OPT=-DTRAVIS V=1 ROCKSDBTESTS_START=comparator_db_test make -j4 check_some; fi
+  - if [ "${JOB_NAME}" == 'java_test' ]; then OPT=-DTRAVIS V=1 make clean jclean && make rocksdbjava jtest; fi
+  - if [ "${JOB_NAME}" == 'lite_build' ]; then OPT="-DTRAVIS -DROCKSDB_LITE" V=1 make -j4 static_lib; fi
+  - if [ "${JOB_NAME}" == 'examples' ]; then OPT=-DTRAVIS V=1 make -j4 static_lib; cd examples; make -j4; fi
+  - if [ "${JOB_NAME}" == 'cmake' ]; then mkdir build && cd build && cmake .. && make -j4 rocksdb; fi
+  - if [ "${JOB_NAME}" == 'cmake-mingw' ]; then mkdir build && cd build && cmake .. -DCMAKE_C_COMPILER=x86_64-w64-mingw32-gcc -DCMAKE_CXX_COMPILER=x86_64-w64-mingw32-g++ -DCMAKE_SYSTEM_NAME=Windows && make -j4 rocksdb; fi
+notifications:
+    email:
+      - leveldb@fb.com
+    webhooks:
+      - https://buildtimetrend.herokuapp.com/travis

librocksdb_sys/rocksdb/AUTHORS

@@ -0,0 +1,11 @@
+Facebook Inc.
+Facebook Engineering Team
+
+Google Inc.
+# Initial version authors:
+Jeffrey Dean <jeff@google.com>
+Sanjay Ghemawat <sanjay@google.com>
+
+# Partial list of contributors:
+Kevin Regan <kevin.d.regan@gmail.com>
+Johan Bilien <jobi@litl.com>