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* Change TargetContext.findDirectPrerequisite from config1 == config2 to ↵Gravatar Greg Estren2017-01-18
| | | | | | | | | | config1.equals(c2). This fixes an obscure bug between dynamic configurations, host configuration caching, and Skyframe skyKey interning that makes Bazel crash under certain sequences of builds. See changes for details. -- PiperOrigin-RevId: 144766296 MOS_MIGRATED_REVID=144766296
* Fix an obscure crash scenario with static configs and BuildConfiguration.equals.Gravatar Greg Estren2017-01-04
| | | | | | | | | | See OutputFileConfiguredTargetTest for deep details. Also more strongly enforce the expectation that all output files have generating rules. -- PiperOrigin-RevId: 143570028 MOS_MIGRATED_REVID=143570028
* Changes DependencyResolver <Attribute, Dep> map from a ListMultimap to new classGravatar Greg Estren2016-08-12
| | | | | | | | | | | | | | | | | | | | | | OrderedSetMultimap. This maintains insertion order while eliminating duplicates. Certain rules, in particular, otherwise break this invariant: https://github.com/bazelbuild/bazel/blo[]e3e28274cca5b87f48abe33884edb84016dd3/src/main/java/com/google/devtools/build/lib/skyframe/ConfiguredTargetFunction.java#L403 There's no reason (to my knowledge) to need multiple instances of the same <Attribute, Dependency> pair. More context from Google code review: (Michael Staib): > There are many things which pass around a dependentNodeMap or help construct one or modify one. We want an interface which has the right guarantees. > ListMultimap is not the right interface because it has no guarantee of unique elements, which we want - we don't want the problem that this CL ran into, and there's no reason (that we know of, to be confirmed) that anyone would want multiple identical Dependencies. > SetMultimap is not the right interface because it has no guarantee of deterministic iteration order or efficient iteration, which we want - dependency order sometimes matters (e.g., Java classpath or C++ link order). > We agreed that the best way to get what we want is to define our own interface with its own simultaneous uniqueness and iterability guarantees. Unspoken in the discussion was why we wouldn't just use LinkedHashMultimap as the thing we pass around. IMO the reason for that is that we don't care that it be a LinkedHashMultimap specifically; if tomorrow Guava comes out with a faster cooler map that has deterministic and efficient iteration and guarantees element uniqueness, we want it. > In this case we're going to make the "interface" be a (final?) class: OrderedSetMultimap, an extension of ForwardingSetMultimap which delegates to LinkedHashMultimap, an implementation which does support both of those guarantees. > I had mentioned in the conversation that none of the Multimap implementations make guarantees about key iteration order, but this is not true - LinkedHashMultimap preserves key insertion order. We should perhaps declare this as part of the OrderedSetMultimap contract as well. -- MOS_MIGRATED_REVID=130037643
* Rationalize copyright headersGravatar Damien Martin-Guillerez2015-09-25
| | | | | | | | | | | The headers were modified with `find . -type f -exec 'sed' '-Ei' 's|Copyright 201([45]) Google|Copyright 201\1 The Bazel Authors|' '{}' ';'` And manual edit for not Google owned copyright. Because of the nature of ijar, I did not modified the header of file owned by Alan Donovan. The list of authors were extracted from the git log. It is missing older Google contributors that can be added on-demand. -- MOS_MIGRATED_REVID=103938715
* Move Label from the lib.syntax to the lib.cmdline package so that:Gravatar Lukacs Berki2015-09-21
| | | | | | | | | | - Label parsing can be simplified - lib.syntax is only contains the code for Skylark and is reasonably independent from the problem domain of building things This change is mostly only changes to imports declarations. The rest is reversing the dependency between :cmdline and :syntax and moving a tiny amount of code between Printer and FilesetEntry and the addition of SkylarkPrintableValue that I couldn't be bothered to separate out into its own change. -- MOS_MIGRATED_REVID=103527877
* Update from Google.Gravatar Han-Wen Nienhuys2015-02-25
-- MOE_MIGRATED_REVID=85702957