In 5eab9df0df, I updated the
outputFileStamps task to compute all of the stamps for a directory
recursively if an output file is a directory. Prior to that, it had only
computed the stamp for the directory itself. This caused a significant
performance regression in creating the test classloader because it was
computing the last modified time for all of the classfiles in the class path.
The test for 5000 source files in
https://github.com/eatkins/scala-build-watch-performance was running roughly
400ms slower due to this regression.
Ref https://github.com/sbt/sbt/issues/4905
This is a companion PR to https://github.com/sbt/librarymanagement/pull/318.
This will print the following warnings:
```
sbt:hello> compile
[warn] insecure HTTP request is deprecated 'Artifact(jsoup, jar, jar, None, Vector(), Some(http://jsoup.org/packages/jsoup-1.9.1.jar), Map(), None, false)'; switch to HTTPS or opt-in using from(url(...), allowInsecureProtocol = true) on ModuleID or .withAllowInsecureProtocol(true) on Artifact
[warn] insecure HTTP request is deprecated 'http://repo.typesafe.com/typesafe/releases/'; switch to HTTPS or opt-in as ("Typesafe Releases" at "http://repo.typesafe.com/typesafe/releases/").withAllowInsecureProtocol(true)
[warn] insecure HTTP request is deprecated 'http://repo.typesafe.com/typesafe/releases/'; switch to HTTPS or opt-in as ("Typesafe Releases" at "http://repo.typesafe.com/typesafe/releases/").withAllowInsecureProtocol(true)
[warn] insecure HTTP request is deprecated 'http://repo.typesafe.com/typesafe/releases/'; switch to HTTPS or opt-in as ("Typesafe Releases" at "http://repo.typesafe.com/typesafe/releases/").withAllowInsecureProtocol(true)
[warn] insecure HTTP request is deprecated 'Patterns(ivyPatterns=Vector(), artifactPatterns=Vector(http://repo.typesafe.com/typesafe/releases/[organisation]/[module](_[scalaVersion])(_[sbtVersion])/[revision]/[artifact]-[revision](-[classifier]).[ext]), isMavenCompatible=true, descriptorOptional=false, skipConsistencyCheck=false)'; switch to HTTPS or opt-in as Resolver.url("Typesafe Ivy Releases", url(...)).withAllowInsecureProtocol(true)
[warn] insecure HTTP request is deprecated 'Patterns(ivyPatterns=Vector(), artifactPatterns=Vector(http://repo.typesafe.com/typesafe/releases/[organisation]/[module](_[scalaVersion])(_[sbtVersion])/[revision]/[artifact]-[revision](-[classifier]).[ext]), isMavenCompatible=true, descriptorOptional=false, skipConsistencyCheck=false)'; switch to HTTPS or opt-in as Resolver.url("Typesafe Ivy Releases", url(...)).withAllowInsecureProtocol(true)
[warn] insecure HTTP request is deprecated 'Patterns(ivyPatterns=Vector(), artifactPatterns=Vector(http://repo.typesafe.com/typesafe/releases/[organisation]/[module](_[scalaVersion])(_[sbtVersion])/[revision]/[artifact]-[revision](-[classifier]).[ext]), isMavenCompatible=true, descriptorOptional=false, skipConsistencyCheck=false)'; switch to HTTPS or opt-in as Resolver.url("Typesafe Ivy Releases", url(...)).withAllowInsecureProtocol(true)
```
I inadvertently changed the semantics of clean so that cleanFiles would
only delete the file if it was a regular file. In older versions of sbt,
if a file in cleanFiles was a directory, it would be recursively
deleted.
During refactoring of Continuous, I inadvertently changed the semantics
of `~` so that all multi commands were run regardless of whether or not
an earlier command had failed. I fixed the issue and added a regression
test.
It was reported in https://github.com/sbt/sbt/issues/4973 that the
scalaVersion setting was not being correctly set in a script running
with ScriptMain using 1.3.0-RC4. Using git bisect, I found that the
issue was introduced in
73cfd7c8bd.
That commit manipulates the classloaders passed in by the launcher, but
only for the xMain entry point. I found that the script ran correctly if
I updated the classloader for ScriptedMain as well.
After these changes, the example script in #4973 correctly prints 2.13.0
for the scala version with a locally published sbt.
Bonus: rename xMainImpl object xMain. It was private[sbt] anyway.
https://github.com/sbt/sbt/issues/4986 reported that +compile would
always recompile everything in the project even when the sources hadn't
changed. This was because the dependency classpath was changing between
calls to compile, which caused the external hooks cache introduced in
32a6d0d5d7 to invalidate the scala
library. To fix this, I cache the file stamps on a per scala version
basis. I added a scripted test that checks that there is no
recompilation in two consecutive calls to `+compile` in a multi scala
version build. It failed prior to these changes.
During akka startup, addLocal was caused twice and prior to this change,
it took roughly 200ms per call on my computer. After this change, it
took about 100ms.
I looked for serial bottlenecks in sbt project loading and discovered
that KeyIndex.aggregate was relatively easily parallelizable. Before
this time, it took about 1 second to run KeyIndex.aggregate in the akka
project on my computer. After this change, it took 250ms. Given that I
have 4 logical cores, the speedup is roughly linear.
It turns out that injecting the keys necessary for incremental tasks
causes a significant startup penalty for many larger projects. For
example, akka starts up about 3 seconds faster if do not inject these
settings for the tasks returning `File` or `Seq[File]`. Given that all
of these apis use java.nio.file anyway, it makes sense to not backport
them to older tasks.
The clean task got a lot slower in 1.3.0
(https://github.com/sbt/sbt/issues/4972). The reason for this was that
sbt 1.3.0 generated many custom clean tasks for any tasks that returned
`File` or `Seq[File]`. Each of these tasks was tagged with
Tags.Clean which meant that only one of them could run at a time. As a
result, it took a long time to evaluate all of the custom tasks, even if
they were no-ops. In the akka project, a no-op clean was taking 35
seconds which is simply unacceptable. After this change, a no-op clean
takes less than a second in akka (a full clean only takes about 6
seconds after running test:compile)
To fix this, I stopped aggregating the clean task across configs and
projects. Because I removed the aggregation, I needed to manually
implement clean in the `Compile` and `Test` configurations to make
`Compile / clean` and `Test / compile` clean work correctly.
Fixes#4964
Together with https://github.com/sbt/util/pull/211, this brings back stack trace supression for custom tasks by default.
Debug levels logs are available in `last`, and this prints a message informing the user of the fact. BLUE on dark background is difficult to read, so I am chaning the color hilight to MAGENTA.
I am writing a plugin that uses mangled task keys that are very hard to
read. It is helpful to be able to override the show config for these
scopes so that they look reasonable in supershell and in error
reporting.
eugene yokota
Ethan Atkins
xuwei-k