Fixes https://github.com/sbt/sbt/issues/6558
Problem
-------
sbt uses SecurityManager feature of JDK to trap `sys.exit` call during
`run`-like tasks, since we emulate `run` and `console` as function calls.
JDK 17 deprecated SecurityManager and it's printing warnings.
Solution
--------
About 10 years go, `exit` was a convenient way of quitting both Scala
REPL and sbt shell. Scala 2.11 broke this by removing the `Predef.exit`.
We still need to worry about `run` potentially calling `sys.exit`
but that can be handled using fork feature.
In the long-run, it probably is better to be JDK 17 compatible.
The request of the form buildTarget/* often take a sequence of build
targets as parameter. So far if there is an error on a single build
target, the entire request fails.
This is not the best because the client wants the result of the other
build targets anyway:
For example:
- workspace/buildTargets: if one build target has an invalid Scala
version we still want to import the other ones
- buildTarget/scalacOptions: if a dependency cannot be resolved we still
want to import the build targets that do not depend on it
- buildTarget/scalaMainClasses: if buildTarget does not compile we still
want the main classes of the other targets
...
The change is to respond to BSP requests with the successful
build targets and to ignore the failed ones.
This is implemented the same in Bloop since before BSP in sbt.
In https://github.com/build-server-protocol/build-server-protocol/issues/204,
I made a proposal to also add the failed build targets in the response.
The processing log is sent when a command issued by a request is being
processed, if the request has not yet been responded. In particular,
the processing log of sbtReportResult is filtered out if the client has
already received a response.
The processing log severity is the lowest so that it can be ignored by
the BSP client.
The sbt console didn't work with supershell disabled because setting
that parameter was causing the terminal type to be dumb which only works
in some very specific situations. When Terminal.isAnsiSupported was
false, we were setting sbt to use a dumb terminal. We really only want
to use a dumb terminal if virtual io is off. It also doesn't necessarily
make sense to automatically disable general ansi codes even if
supershell is disabled by system property.
The cancel on-going task with string id test was failing in CI because
of a race condition involving server log messages. We need to wait for a
notification that the project has been compiled before we wait for the
"Waiting for" message, otherwise we might pick up the "Waiting for"
message from the previous test case and try to cancel the task before it
has been created.
I was seeing some failures in travis ci where the build crashed because
it wasn't able to open a socket. This failure was happening in the
scalatest fork runner so I decided to avoid forking entirely. An
alternative approach would possibly be just to remove the scalatest
framework from the server test project but not forking is nicer anyway.
It is possible for the test cases in ClientTest to block indefinitely.
To avoid that, we can instead run them on a background thread and cancel
the thread if that happens.