Unreleased

v31r0 - 2019-02-11

The main reason for this major release is to the change of the Algorithm base class with a re-entrant execute method (#47, !703). For backward compatibility the base class for algorithms is Gaudi::Algorithm, while the name Algorithm in the top level namespace is used for a backward compatible implementation. This change also required a backward incompatible change in the IAlgorithm interface, so some code may require adaptation.

We also took the occasion to update the version of clang-format we use from 3.9 to 7, and to switch Python formatting from autopep8 to yapf (!788). Because of the differences (fixes and new features) in the versions of clang-format, we also updated the style rules.

As of this version, Gaudi requires C++17 compatible compiler. C++14 compatibility is not required in merge requests, nor guaranteed on the master branch.

On top of that, we have the usual collection of minor fixes and improvements.

Changed

Use gcc 8 instead of gcc 7, and drop gcc 6.2 in CI jobs (!836)
Make new counters work with Gaudi::Algorithm (#57, !834, !839)
Update clang-format version and style rules (!788)
Make DataObjectHandle::{put,getOrCreate} const (!833)
Simplify IAlgExecStateSvc interface (!775)
Simplify Algorithm constructor (!766)
Improve the scheduler's execution flow simulator and fix the intra-event occupancy logger (!819)
Reentrant Algorithm base class (#47, !703)

Added

Introduced CPUCrunchSvc (!840)
Added a boolean parameter to turn on verbose view algorithm status (!835)
Added MsgStream support for counters (!826)
Message: Add option to print full event ID (!824)
IoComponentMgr: Add interface to retrieve all filenames of component (!823)
Add example for Consumer<void()> (!797)

Fixed

Fix lookup/use of nosetests for LCG 95 (!842)
Check coding conventions in build stage of Gitlab-CI (!848)
Make gaudi_add_compile_test also work for succeeding compilations (!844)
Fix build of Gaudi with LCG 95rc1 in ATLAS context (!847)
Explicitly define StatusCode constants (!841)
Fix handling of EventContext in Gaudi::Functional::Transformer arguments (!837)
Extensions to allow EventIDRanges limited by both time-stamps and run/LB pairs (!831)
Improve ROOT dictionary dependency computation (!825)
Fix issues in preparation for LCG 95 (!820)
Improve QMT test wrapper (!812)
Improvements for tests (!812, !817)
Fixes/workrounds for thread-safety (!815, !829)
Code clean up (!808, !811, !814, !809, !827, !843)
Fixes to thread local initialization (!816, !807)

v30r5 - 2018-11-15

This release is mainly to revert !462 (Reimplemenation of DataHandle), which caused problems in ATLAS code.

Supersedes v30r4

Changed

refer error in databroker when multiple algorithms declare the same output and remove some error messages (!799)
Remove redundant code from GaudiKernel/StdArrayAsProperty.h (!790)
Use generic boost::callable_traits over hand-rolled solution (!785)
Revert "Reimplementation of `DataHandle` (!462)" (!794)

Added

Added printing of Inputs/Outputs for HiveDataBroker in debug mode (!801)
Support Boost >= 1.67 Python library name convention (!743)

Fixed

Reduce dependency on LHCb env tools in CI jobs (!805)
Make sure algorithms managed by AlgorithmManager are correctly initialized and started (!804)
test_LBCORE_716: Use the default linker and not the system linker (!783)
CountersUnitTest: Fix C++14 compiler warning (!795)

v30r4 - 2018-11-02 [YANKED]

Improvements, modernization and fixes.

Changed

Reorganization of Gaudi::Parsers code (!759)
Update LCG to 94 and Gaudi version to v30r4 (!776)
Update minimum required CMake version to 3.6 (!789)
Remove m_event_context from Algorithm (!784)
Reimplementation of DataHandle (!462)
Improve extension API in EventContext (!770)
Change return type of interger counters operations, like mean, to float (!786, #50)
Clean up IDataProviderSvc and IDataManagerSvc interfaces (!674)
Avoid printing empty counters (!777)
Use unique_ptr for EventContexts (!732, #37)
ConcurrencyFlags: move setting from AvalancheScheduler to HiveWhiteBoard (!726)
Introduce a generic IDataStoreAgent implementation (!661)
MetaDataSvc: save data for all clients of the JobOptionsSvc (!720)
Adding actual type of object in data store to error messages (!715)

Added

Add Gaudi::Property constructors which accept an update handler (!769)
Optionally capture and print exception backtrace (!653)
Add build and runtime support for gcc/clang sanitizers (!744)
Add debug builds to Gitlab-CI and other improvements to CI configuration (!756)
Introduce IDataBroker interface, and HiveDataBroker implementation (!685, !739)
Added an accumulate helper function to new counters (!717)

Fixed

HiveWhiteBoard::freeStore: check whether slot was already free (!779, #49)
Fix segfault when scheduling EventViews (!781)
Fixed bug in BinomialCounter when using buffer (!764)
Clarify scalar operator() signature in MultiScalarTransform (!755)
Fix potential race condition in TimelineSvc (!750)
Implicitly convert DataObjectHandleBase to str properties (!773)
Filter out install and build files from make apply-formatting (!747, )
Fixed issues reported by gcc/clang sanitizers (!749, !757, !758, !752, !751, !746, !772, !753)
Make sure a test fails if its reference file is not found (!734)
Fix Floating Point Exception in counters.h (!760)
Make the CMake tests more resilient to symlinks (!742)
Add support for versioned ROOT libraries (!737)
Make event views bookkeeping thread-safe (!729, #36)
Avoid using a (possibly invalid) EventContext pointer (!727)
Mark dependencies as required when the build requires them (!731)
Use std::filesystem only with C++17 (!738)
Fixed indentation of new counters to be backward compatible (!717)
Fixed error handling of qmt parsing errors (!714)
Stop profiling on finalize if needed (!713)
THistSvc: fix memory corruption in deReg(string) (!728)
Avoid possible memory corruption in PluginService (!733)
Added correct vector_of_const_::operator[] and ::at (!710)

Clean up

Make VectorMap nothrow_move_constructible (!791)
Fix some gcc 8 warnings (!782)
Remove unused mutex member in Algorithm (!767)
Replaced invalid std::forward with std::move in PluginService (!745)
Counters: improve doxygen (!754)
Minor code clean up (!408, !740, !774)

v30r3 - 2018-08-01

Improvements, modernization and fixes.

Deprecated

Print warning if begin/endRun are used in serial jobs (!666)
Fully deprecate DeclareFactoryEntries.h (!648)

Changed

Implement error detection for Hive scheduler/eventloopmgr (!706)
Modernize memory management in PrecedenceRulesGraph (!684)
Simplify HLTEventLoopMgr (!686)
Rewrite of PluginService in modern C++ (!709)
Sort uids map before printing the content at finalize (in DEBUG) (!702)
Remove NTUPLEINFO (!688)
Revert IRegsitry modification from !604 (!704)
Move to event-wise stall detection (!690)
Avoid superfluous visitor-to-scheduler handovers of in-view DR algorithms (!689)
Add set-to-set lookups for faster AlgsExecutionStates matching (!687)
FileMgr: replace integer with bitset (!667)
Enable top-level 3T dumps for event views (!675)
Add support for multiple CF parents to 3T (!672)
Applied new formatting (see !651, !448)
Remove DataHandle::commit() (!625)
Modernize Registry usage in (Ts)DataSvc (!604, #5)
Improve Gitlab-CI configuration (!651, !448)
Implemented a new property for IoComponentMgr to hold search patterns for direct I/O input file names (!646)
Allow retrieval of const services, lost with !526 (!647)
Add renamePFN and deletePFN methods to FileCatalog (!645)
Do string conversion in stream operator for AlgsExecutionStates::State (!643)
Use apply in Gaudi::Functional (!622)

Fixed

Fixes for clang build (!724)
Fix dependency of generated PCM files (!705)
Fix tests in special configurations (!701)
Fix asynchronous task scheduling (!697)
Make sure we do not use ninja from LCG (!695)
Increase timeout for event view tests (!696)
Fix message service format in GaudiMP (!694)
CommonAuditor: only print CustomEventType deprecation warning if the property is used (!691)
Fix for crash when events are deleted while view algorithms are still running (!670)
Fix environment for Gitlab-CI
Unset GIT_DIR/GIT_WORK_TREE before cloning xenv (!669)
Add test and fix of version propagation in KeyedContainer move (!663, #27)
Fixed the list of files used for formatting check in Gitlab-CI (!664)
Avoid (false positive) clang warning (!656)
Handle incompatible values for DataObjectHandleBase props (!650)
Fixed bug in THistSvc introduced with !594 (!652)

Added

Add support for EventContext as input to Gaudi::Functional algorithms (!671)
Add operator() to Property (!679)
Add producer for KeyedContainer and vector to GaudiExamples (!673)
Implementation of new counters classes (!629, !676, !677)
Change log (!649)

Clean up

Simplify Property forwarding functions (!683)
Simplify counter implementation (!682)
Update C++17 / lib fundamentals v2 implementations (!681)
Modernize GaudiPython (!680)
Modernize RootCnv (!660)
Modernize RootHistCnv (!659)
Protect logging and clean up headers in HiveSlimEventLoopMgr (!692)
Remove unused variables in Algorithm (!668)
Remove unreferenced code (!658)

v28r2p1 - 2018-06-15

Bugfix release

Fixed

Add test and fix of version propagation in KeyedContainer move (!665, #27)

Added

Gitlab-CI configuration (!665, backport from master)

v29r4 - 2018-04-17

Bugfix release.

Fixed

Add test and fix of version propagation in KeyedContainer move (!662, #27)
Handle incompatible values for DataObjectHandleBase props (!654)

Changed

Improve Gitlab-CI configuration (!655, backport of !651)

Old versions

Details about old versions of the project can be found in the [ReleaseNotes](ReleaseNotes) folder and in the release.notes files in GaudiRelease/doc.