Merge commit 'f8dd96543542220181c76afb8c084f4908213fb5' as 'third_party/mason'

third_party/mason/scripts/leveldb/a7bff69/.travis.yml

@@ -0,0 +1,22 @@
+language: generic
+
+matrix:
+  include:
+    - os: osx
+      osx_image: xcode7.3
+      compiler: clang
+    - os: linux
+      sudo: false
+      addons:
+        apt:
+          sources:
+           - ubuntu-toolchain-r-test
+          packages:
+           - libstdc++6
+           - libstdc++-5-dev
+
+script:
+- ./mason build ${MASON_NAME} ${MASON_VERSION}
+
+after_success:
+- ./mason publish ${MASON_NAME} ${MASON_VERSION}

third_party/mason/scripts/leveldb/a7bff69/script.sh

@@ -0,0 +1,41 @@
+#!/usr/bin/env bash
+
+MASON_NAME=leveldb
+MASON_VERSION=a7bff69
+MASON_LIB_FILE=lib/libleveldb.a
+
+. ${MASON_DIR}/mason.sh
+
+function mason_load_source {
+    mason_download \
+        https://github.com/google/leveldb/archive/a7bff697baa062c8f6b8fb760eacf658712b611a.tar.gz \
+        f9fb5e3c97ab59e2a8c24c68eb7af85f17a370ff
+
+    mason_extract_tar_gz
+
+    export MASON_BUILD_PATH=${MASON_ROOT}/.build/${MASON_NAME}-a7bff697baa062c8f6b8fb760eacf658712b611a
+}
+
+function mason_compile {
+    # note: OPT is set in the Makefile and defaults to '-O2 -DNDEBUG'
+    # (dane) we should use -O3 for the fastest code - I presume -O2
+    # is being used as safe default since some old compilers were buggy
+    # with -O3 back in the day...
+    OPT="-O3 -DNDEBUG" make out-static/libleveldb.a -j${MASON_CONCURRENCY}
+    # leveldb lacks an install target
+    # https://github.com/google/leveldb/pull/2
+    mkdir -p ${MASON_PREFIX}/include/
+    mkdir -p ${MASON_PREFIX}/lib/
+    cp -r include/leveldb ${MASON_PREFIX}/include/leveldb
+    cp out-static/libleveldb.a ${MASON_PREFIX}/lib/
+}
+
+function mason_ldflags {
+    echo -L${MASON_PREFIX}/lib -lleveldb
+}
+
+function mason_clean {
+    make clean
+}
+
+mason_run "$@"