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* Do not cache classloaders for Builds. This wasn't supposed to happen yetChristopher Vogt2016-04-291-10/+10
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* Reproducible builds, composing different CBT version and various improvementsChristopher Vogt2016-04-281-20/+99
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | One large commit, because it is was hard to do these things in isolation or to separate them now. CBT now knows how to load other versions of itself - Support for reproducible builds (!), by providing a CBT git URL and hash to tie build to - Support for composing builds using different CBT versions (!) - introduce (in compatibility/) Java interfaces all CBT versions need to stay compatible with, so they can talk to each other. And put extension methods to these interfaces in cbt package object Class loading - add some sanity checks for class loading - improve class loader invalidation to fix bugs - implement caching in Java land class loaders. In particular to prevent the system class loader to repeatedly generate ClassNotFound exceptions in each sink of the class loader DAG for non JDK classes (meaning major speed up for projects with many classes). - getting rid of transient class loader cache unifying into "persistent" one instead (which is still wrong as invalidation eventually needs to invalidate entire sub graphs of the class loading DAG, not single class loaders. Seems like we'll have to abandon the hashmap based approach and tie caching to dependency objects) Other Caching - cache dependencies extracted from xml files, which was one major time killer, but invalidate cache when cbt changed (maven dependency user facing api needs simplification now!) - memorize last successful compile time in the file system rather than memory, to guard against unnecessary recompiling even across launches (or when using cbt direct) Structural improvements - Factor out ClassLoaderCache on Java land into its own class. - Port MultiClassLoader to Java land, to better compose classloaders in NailgunLauncher. - Remove many global constants and variables (in object paths and in NailgunLauncher) and pass them through instead. Needed for composing of builds. - move more code from resolver into Lib for less entanglement with classes (needed to compatibility interfaces) and better re-usability - remove canBeCached. Everything can be cached now, but we need to be careful about correct invalidation. - remove build announcing produced jars. We can add if ever needed. - change callNullary to return exit code instead of Unit as preparation for next commit introducing "recursive" ScalaTest - Makes ScalaTest support work (still a bit too inflexible, but mostly works well)
* if compiler crashed, print commands to reproduce it outside of cbtChristopher Vogt2016-04-281-14/+43
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* minor cleanup, better logging for downloadsChristopher Vogt2016-04-281-2/+3
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* cross building and automatic snaphot idsChristopher Vogt2016-04-071-1/+10
| | | | | Adds support for cross building for multiple scala versions And for automatically appending -SNAPSHOT to the id, when publishing a snapshot.
* Correctly interact with build in cwd instead of loading it's managed build ↵Christopher Vogt2016-04-061-1/+1
| | | | in case of a BuildBuild.
* Implement alternative resolversChristopher Vogt2016-04-031-26/+49
| | | | | | | | | | | | This commit also - requires Dependencies to explicitly implement canBeCached - unifies some logic for dependency downloading - moves SBT-like dependency DSL into its own trait - error message showing build directory for exceptions in builds Not splitting this up in favor of faster progress to 1.0. The user facing API can probably be slightly improved using implicits inside of BasicBuild, but we can do that later.
* propagate info if cbt has changed across builds, so they can be re-compiledChristopher Vogt2016-04-021-1/+1
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* only compile and only produce jars if there are actually files.Christopher Vogt2016-04-021-51/+53
| | | | This seem desirable, but also fixes a test failure for which I have no idea why it didn't fail before but now.
* Makes zinc usage smarter, so we do not need to call it when no files changed ↵Christopher Vogt2016-03-301-16/+23
| | | | | | (and safe up to 0.1s for each call) There still seem to be 2 bugs related to CBT development in the code. One if you simpy save a stage1 file unchanged and re-run cbt, it fails to call Stage2.run reflectively. Also in case of compile errors in stage1, a TrappedExitCode exception is thrown and not caught.
* replace Scala reflection with Java reflection seems to fix the weird ↵Christopher Vogt2016-03-281-16/+0
| | | | exceptions that happened in the previous commit. Also gets rid of scala.reflect dependency in stage2.
* Early classloading improvementsChristopher Vogt2016-03-281-23/+5
| | | | | | | | | - Changed launcher to already load zinc - use code generation to generate necessary dependencies - changed resolver to linearize dependency DAG in a way that guarantees that every transitive dependee of a node in the DAG is a transitive dependee of that node in the linear sequence - move exit code trapping code into java so it can be used for zinc early There seems to be a bug in this version, where CBT crashes about half of the time with a "object is not an instance of declaring class" Exception during running the task from the build object via reflection.
* better toString for Java URLClassLoader. Minor enhancementsChristopher Vogt2016-03-201-1/+1
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* replace two level classloader with hierarchyChristopher Vogt2016-03-191-0/+2
| | | | | | replace two level classloader (one for non-cachable dependencies with a cached parent one for cachable ones) with a hierachy of classloaders corresponding this should eventually allow re-using CBT's classloader between stage1 and stage2 this change breaks the ScalaTest support for now
* minor enhancements to classloadingChristopher Vogt2016-03-191-1/+1
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* Refactored ClassLoaderCache to use key locked cache to pave the way for ↵Christopher Vogt2016-03-191-2/+3
| | | | caching classloaders hierarchically without deadlocks
* Make trapExitCode pass on previous exit codesChristopher Vogt2016-03-191-4/+4
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* fix zinc interface dependenciesChristopher Vogt2016-03-121-13/+13
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* Merge remote-tracking branch 'origin/master' into farmdawg/zinc-exit-codesChristopher Vogt2016-03-121-8/+19
|\ | | | | | | | | | | # Conflicts: # stage1/Stage1Lib.scala # stage1/resolver.scala
| * Improved how to express dependenciesChristopher Vogt2016-03-121-10/+20
| | | | | | | | | | | | Add - Constructor syntax for cross-scala-version dependencies (as rightfully requested on reddit) and encouraged over SBT's still supported operator syntax - Add support for classifiers other than "sources"
* | Always reset security manager to what it was during startup. Should be less ↵Christopher Vogt2016-03-121-2/+1
| | | | | | | | fragile with regards to concurrency and user code setting security managers.
* | Clean up some of the zinc invocation.Matt Farmer2016-03-121-18/+27
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* | Re-enable cache detection.Matt Farmer2016-03-121-1/+1
| | | | | | | | | | | | | | | | | | We had previously disabled needsRecompile caching because we weren't properly capturing zinc's status at the conclusion of a compile. So we *always* had to recompile. Now that we've fixed the exit detection on zinc, we can correctly cache things and not recompile if the sources haven't changed.
* | Bubble zinc error codes to calling script.Matt Farmer2016-03-121-46/+39
|/ | | | | We were previously eating zinc error codes because we invoked trapExitCode twice in the same call stack.
* Split ClassLoader classes into separate files and a few fixesChristopher Vogt2016-03-111-0/+8
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* cleanup: whitespace changes, separated more things into their own files, use ↵Christopher Vogt2016-03-071-43/+21
| | | | ++ for strings everywhere. Added ++ method to File and URL and use it in many places
* trap and pass exit codes throug the app, pass logger on to tests, remove the ↵Christopher Vogt2016-03-061-23/+83
| | | | lib. qualification from Stage1 for better readability
* The condition disables zinc too eagerly, which can easilyChristopher Vogt2016-03-061-1/+1
| | | | | | | | | | | | | | | | lead to half compiled sets of class files after a type error and no attempt to re-compile unless a source file is changed. This workaround fixes it but needs to run zinc more often which comes with a roughly 0.1 seconds time penalty every time (despite classloader caching) for every involved sub build. A fix would trep zinc's exit code (or call zinc differently) in order to determine if it succeeded and if it did not do something that makes it run again the next time, like deleting the class files or touching a source file. Probably there is a better way.
* Fix READMEChristopher Vogt2016-03-051-1/+1
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* CBT Version 1.0-BETAChristopher Vogt2016-03-041-0/+184
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