Add db_stress to buck build (facebook#9840)

Summary:
For internal testing purposes (minimal deps)

Pull Request resolved: facebook#9840

Test Plan: buck build :db_stress

Reviewed By: hx235

Differential Revision: D35635192

Pulled By: pdillinger

fbshipit-source-id: eefca3bcea174de6fdcdc1c763774f3134c7342c

TARGETS

@@ -685,6 +685,8 @@ rocks_cpp_library_wrapper(name="rocksdb_stress_lib", srcs=[
     ], headers=None)
 
 
+cpp_binary_wrapper(name="db_stress", srcs=["db_stress_tool/db_stress.cc"], deps=[":rocksdb_stress_lib"], extra_preprocessor_flags=[], extra_bench_libs=False)
+
 cpp_binary_wrapper(name="ribbon_bench", srcs=["microbench/ribbon_bench.cc"], deps=[], extra_preprocessor_flags=[], extra_bench_libs=True)
 
 cpp_binary_wrapper(name="db_basic_bench", srcs=["microbench/db_basic_bench.cc"], deps=[], extra_preprocessor_flags=[], extra_bench_libs=True)

buckifier/buckify_rocksdb.py

@@ -184,6 +184,10 @@ def generate_targets(repo_path, deps_map):
         src_mk.get("ANALYZER_LIB_SOURCES", [])
         + src_mk.get('STRESS_LIB_SOURCES', [])
         + ["test_util/testutil.cc"])
+    # db_stress binary
+    TARGETS.add_binary("db_stress",
+                       ["db_stress_tool/db_stress.cc"],
+                       [":rocksdb_stress_lib"])
     # bench binaries
     for src in src_mk.get("MICROBENCH_SOURCES", []):
         name =  src.rsplit('/',1)[1].split('.')[0] if '/' in src else src.split('.')[0]