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a42324e370
rocksdb/util
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Jim Meyering a42324e370 build: do not relink every single binary just for a timestamp 
Summary:
Prior to this change, "make check" would always waste a lot of
time relinking 60+ binaries. With this change, it does that
only when the generated file, util/build_version.cc, changes,
and that happens only when the date changes or when the
current git SHA changes.

This change makes some other improvements: before, there was no
rule to build a deleted util/build_version.cc. If it was somehow
removed, any attempt to link a program would fail.
There is no longer any need for the separate file,
build_tools/build_detect_version.  Its functionality is
now in the Makefile.

* Makefile (DEPFILES): Don't filter-out util/build_version.cc.
No need, and besides, removing that dependency was wrong.
(date, git_sha, gen_build_version): New helper variables.
(util/build_version.cc): New rule, to create this file
and update it only if it would contain new information.
* build_tools/build_detect_platform: Remove file.
* db/db_impl.cc: Now, print only date (not the time).
* util/build_version.h (rocksdb_build_compile_time): Remove
declaration.  No longer used.

Test Plan:
- Run "make check" twice, and note that the second time no linking is performed.
- Remove util/build_version.cc and ensure that any "make"
command regenerates it before doing anything else.
- Run this: strings librocksdb.a|grep _build_.
That prints output including the following:

  rocksdb_build_git_date:2015-02-19
  rocksdb_build_git_sha:2.8.fb-1792-g3cb6cc0

Reviewers: ljin, sdong, igor

Reviewed By: igor

Subscribers: dhruba

Differential Revision: https://reviews.facebook.net/D33591
2015-02-19 13:11:10 -08:00
..
allocator.h Enforce write buffer memory limit across column families 2014-12-02 12:09:20 -08:00
arena_test.cc Make arena use hugepage if possible 2014-11-21 14:11:40 -08:00
arena.cc Make arena use hugepage if possible 2014-11-21 14:11:40 -08:00
arena.h Enforce write buffer memory limit across column families 2014-12-02 12:09:20 -08:00
auto_roll_logger_test.cc Add Header to logging to capture application level information 2015-02-06 10:37:45 -08:00
auto_roll_logger.cc Add Header to logging to capture application level information 2015-02-06 10:37:45 -08:00
auto_roll_logger.h Switch logv with loglevel to virtual 2015-02-09 20:59:29 +01:00
autovector_test.cc Add rocksdb::ToString() to address cases where std::to_string is not available. 2014-11-24 20:44:49 -08:00
autovector.h Replace exception by assertion in autovector 2014-12-04 11:41:56 -08:00
benchharness_test.cc Turn on -Wshorten-64-to-32 and fix all the errors 2014-11-11 16:47:22 -05:00
benchharness.cc Add rocksdb::ToString() to address cases where std::to_string is not available. 2014-11-24 20:44:49 -08:00
benchharness.h Fix iOS compile with -Wshorten-64-to-32 2014-11-13 14:39:30 -05:00
bloom_test.cc Turn on -Wshorten-64-to-32 and fix all the errors 2014-11-11 16:47:22 -05:00
bloom.cc Turn on -Wshorten-64-to-32 and fix all the errors 2014-11-11 16:47:22 -05:00
build_version.h build: do not relink every single binary just for a timestamp 2015-02-19 13:11:10 -08:00
cache_bench.cc Fix -Wshadow for tools 2014-11-07 15:04:30 -08:00
cache_test.cc Fix Mac compile errors on util/cache_test.cc 2014-12-11 14:15:13 -08:00
cache.cc Modifed the LRU cache eviction code so that it doesn't evict blocks which have exteranl references 2014-12-10 22:28:53 -08:00
coding_test.cc Remove BitStream* tests 2014-08-19 09:52:54 -04:00
coding.cc Removing BitStream* functions 2014-08-19 06:48:21 -07:00
coding.h Turn on -Wshorten-64-to-32 and fix all the errors 2014-11-11 16:47:22 -05:00
comparator.cc Changed name of ReverseBytewiseComparator based on review comment 2014-09-27 10:06:13 +02:00
compression.h New BlockBasedTable version -- better compressed block format 2015-01-14 16:24:24 -08:00
crc32c_test.cc Add appropriate LICENSE and Copyright message. 2013-10-16 17:48:41 -07:00
crc32c.cc Turn on -Wshorten-64-to-32 and fix all the errors 2014-11-11 16:47:22 -05:00
crc32c.h Add appropriate LICENSE and Copyright message. 2013-10-16 17:48:41 -07:00
db_info_dumper.cc Fix iOS compile with -Wshorten-64-to-32 2014-11-13 14:39:30 -05:00
db_info_dumper.h Fix iOS compile with -Wshorten-64-to-32 2014-11-13 14:39:30 -05:00
dynamic_bloom_test.cc rocksdb: Fix 'Division by zero' scan-build warning 2015-02-17 17:54:02 -08:00
dynamic_bloom.cc Enforce write buffer memory limit across column families 2014-12-02 12:09:20 -08:00
dynamic_bloom.h Enforce write buffer memory limit across column families 2014-12-02 12:09:20 -08:00
env_hdfs.cc Add rocksdb::ToString() to address cases where std::to_string is not available. 2014-11-24 20:44:49 -08:00
env_posix.cc rocksdb: Fix 'Division by zero' scan-build warning 2015-02-17 17:54:02 -08:00
env_test.cc Switch logv with loglevel to virtual 2015-02-09 20:59:29 +01:00
env.cc Add Header to logging to capture application level information 2015-02-06 10:37:45 -08:00
file_util.cc Provide openable snapshots 2014-11-14 11:38:26 -08:00
file_util.h Provide openable snapshots 2014-11-14 11:38:26 -08:00
filelock_test.cc Add appropriate LICENSE and Copyright message. 2013-10-16 17:48:41 -07:00
filter_policy.cc Add appropriate LICENSE and Copyright message. 2013-10-16 17:48:41 -07:00
hash_cuckoo_rep.cc Enforce write buffer memory limit across column families 2014-12-02 12:09:20 -08:00
hash_cuckoo_rep.h Enforce write buffer memory limit across column families 2014-12-02 12:09:20 -08:00
hash_linklist_rep.cc Fix data race in HashLinkList 2015-01-28 15:16:52 -08:00
hash_linklist_rep.h Enforce write buffer memory limit across column families 2014-12-02 12:09:20 -08:00
hash_skiplist_rep.cc Enforce write buffer memory limit across column families 2014-12-02 12:09:20 -08:00
hash_skiplist_rep.h Enforce write buffer memory limit across column families 2014-12-02 12:09:20 -08:00
hash.cc Turn on -Wshorten-64-to-32 and fix all the errors 2014-11-11 16:47:22 -05:00
hash.h Introduce GetThreadList API 2014-11-20 10:49:32 -08:00
histogram_test.cc Add appropriate LICENSE and Copyright message. 2013-10-16 17:48:41 -07:00
histogram.cc Fix iOS compile with -Wshorten-64-to-32 2014-11-13 14:39:30 -05:00
histogram.h Fix iOS compile with -Wshorten-64-to-32 2014-11-13 14:39:30 -05:00
instrumented_mutex.cc Perf Context to report DB mutex waiting time 2015-02-09 17:55:12 -08:00
instrumented_mutex.h Add a counter for collecting the wait time on db mutex. 2015-02-04 21:39:45 -08:00
iostats_context_imp.h Fix ios compile 2014-08-28 12:46:05 -04:00
iostats_context.cc Fix ios compile 2014-08-28 12:46:05 -04:00
ldb_cmd_execute_result.h Revert "Fix lint errors and coding style of ldb related codes." 2014-10-31 19:22:49 -07:00
ldb_cmd.cc Added 'dump_live_files' command to ldb tool. 2014-12-12 17:50:36 -08:00
ldb_cmd.h Added 'dump_live_files' command to ldb tool. 2014-12-12 17:50:36 -08:00
ldb_tool.cc Added 'dump_live_files' command to ldb tool. 2014-12-12 17:50:36 -08:00
log_buffer.cc Enlarge log size cap when printing file summary 2014-09-23 16:56:34 -07:00
log_buffer.h Enlarge log size cap when printing file summary 2014-09-23 16:56:34 -07:00
log_write_bench.cc Fix more gflag namespace issues 2014-05-09 08:41:02 -07:00
logging.cc remove cast, replace %llu with % PRIu64 2014-09-23 01:10:46 +08:00
logging.h remove unused variable 2014-09-21 22:20:00 +08:00
manual_compaction_test.cc Fix CompactRange to apply filter to every key 2014-01-14 16:19:09 -08:00
memenv_test.cc Compile MemEnv with standard RocksDB library 2015-01-29 16:33:11 -08:00
memenv.cc Compile MemEnv with standard RocksDB library 2015-01-29 16:33:11 -08:00
mock_env_test.cc Add fsync / corrupt simulation to env_mem 2014-10-31 15:16:31 -07:00
mock_env.cc Switch logv with loglevel to virtual 2015-02-09 20:59:29 +01:00
mock_env.h Provide openable snapshots 2014-11-14 11:38:26 -08:00
murmurhash.cc Add appropriate LICENSE and Copyright message. 2013-10-16 17:48:41 -07:00
murmurhash.h Turn on -Wshorten-64-to-32 and fix all the errors 2014-11-11 16:47:22 -05:00
mutable_cf_options.cc remove all remaining references to cfd->options() 2014-11-18 10:20:10 -08:00
mutable_cf_options.h remove all remaining references to cfd->options() 2014-11-18 10:20:10 -08:00
mutexlock.h Add separate Read/WriteUnlock methods in MutexRW. 2014-06-16 15:41:46 -07:00
options_builder.cc Remove the compability check on log2 OS_ANDROID as it's already blocked by ROCKSDB_LITE 2014-12-04 13:56:14 -08:00
options_helper.cc CappedFixTransform: return fixed length prefix, or full key if key is shorter than the fixed length 2015-01-30 16:04:30 -08:00
options_helper.h Missing header in build on CentOS 2014-11-18 22:21:02 +01:00
options_test.cc Switch logv with loglevel to virtual 2015-02-09 20:59:29 +01:00
options.cc Managed iterator 2015-02-18 11:49:31 -08:00
perf_context_imp.h Refactor PerfStepTimer to stop on destruct 2014-09-02 12:04:22 -07:00
perf_context.cc Perf Context to report DB mutex waiting time 2015-02-09 17:55:12 -08:00
posix_logger.h Switch logv with loglevel to virtual 2015-02-09 20:59:29 +01:00
random.h Add appropriate LICENSE and Copyright message. 2013-10-16 17:48:41 -07:00
rate_limiter_test.cc Turn on -Wshorten-64-to-32 and fix all the errors 2014-11-11 16:47:22 -05:00
rate_limiter.cc Turn on -Wshorten-64-to-32 and fix all the errors 2014-11-11 16:47:22 -05:00
rate_limiter.h expose RateLimiter definition 2014-07-25 15:17:06 -07:00
scoped_arena_iterator.h Remove path with arena==nullptr from NewInternalIterator 2014-09-04 17:40:41 -07:00
signal_test.cc rocksdb: Fix scan-build 'Called C++ object pointer is null' and 'Dereference of null pointer' bugs 2015-02-13 15:10:47 -08:00
skiplistrep.cc Enforce write buffer memory limit across column families 2014-12-02 12:09:20 -08:00
slice_transform_test.cc CappedFixTransform: return fixed length prefix, or full key if key is shorter than the fixed length 2015-01-30 16:04:30 -08:00
slice.cc CappedFixTransform: return fixed length prefix, or full key if key is shorter than the fixed length 2015-01-30 16:04:30 -08:00
sst_dump_test.cc Dump routine to BlockBasedTableReader (valgrind) 2014-12-23 18:01:29 -08:00
sst_dump_tool_imp.h Dump routine to BlockBasedTableReader 2014-12-23 13:24:07 -08:00
sst_dump_tool.cc Dump routine to BlockBasedTableReader 2014-12-23 13:24:07 -08:00
statistics.cc Fix assert in histogramData 2015-01-23 18:10:52 -08:00
statistics.h make statistics forward-able 2014-07-28 12:10:49 -07:00
status.cc Turn on -Wshorten-64-to-32 and fix all the errors 2014-11-11 16:47:22 -05:00
stl_wrappers.h Killing Transform Rep 2013-12-03 12:42:15 -08:00
stop_watch.h Change StopWatch interface 2014-07-28 12:22:37 -07:00
string_util.cc Clean up StringSplit 2014-11-21 11:05:28 -05:00
string_util.h Add rocksdb::ToString() to address cases where std::to_string is not available. 2014-11-24 20:44:49 -08:00
sync_point.cc Don't compile sync_point if NDEBUG 2014-04-17 10:49:58 -07:00
sync_point.h Fix ifdef NDEBUG 2014-04-17 14:29:28 -07:00
testharness.cc introduce TestMemEnv and use it in db_test 2014-10-31 15:08:10 -07:00
testharness.h rocksdb: Fix scan-build 'Called C++ object pointer is null' and 'Dereference of null pointer' bugs 2015-02-13 15:10:47 -08:00
testutil.cc Merger test 2014-09-08 22:24:40 -07:00
testutil.h Add ComparatorDBTest to test non-default comparators 2014-10-29 15:42:36 -07:00
thread_list_test.cc Add utility functions for interpreting ThreadStatus 2015-02-04 01:47:32 -08:00
thread_local_test.cc Turn on -Wshadow 2014-10-31 11:59:54 -07:00
thread_local.cc Use ustricter consistency in thread local operations 2015-01-27 13:56:03 -08:00
thread_local.h Improve the comment of util/thread_local.h 2014-10-21 17:28:31 -07:00
thread_operation.h Add a missing field for STATE_MUTEX_WAIT to global_state_table 2015-02-06 02:38:14 -08:00
thread_status_impl.cc Add utility functions for interpreting ThreadStatus 2015-02-04 01:47:32 -08:00
thread_status_updater_debug.cc Allow GetThreadList() to indicate a thread is doing Compaction. 2015-01-13 00:04:08 -08:00
thread_status_updater.cc Allow GetThreadList() to indicate a thread is doing Compaction. 2015-01-13 00:04:08 -08:00
thread_status_updater.h Allow GetThreadList() to indicate a thread is doing Compaction. 2015-01-13 00:04:08 -08:00
thread_status_util_debug.cc Add thread_status_util_debug.cc back 2015-02-17 11:29:36 -08:00
thread_status_util.cc Allow GetThreadList() to indicate a thread is doing Compaction. 2015-01-13 00:04:08 -08:00
thread_status_util.h Add thread_status_util_debug.cc back 2015-02-17 11:29:36 -08:00
vectorrep.cc Enforce write buffer memory limit across column families 2014-12-02 12:09:20 -08:00
xfunc.cc Managed iterator 2015-02-18 11:49:31 -08:00
xfunc.h Managed iterator 2015-02-18 11:49:31 -08:00
xxhash.cc xxHash 2014-05-01 14:09:32 -04:00
xxhash.h xxHash 2014-05-01 14:09:32 -04:00