This requires a Format[T] to be implicitly available at the call site and requires the task
to be referenced statically (not in a settingDyn call). References to previous task values
in the form of a ScopedKey[Task[T]] + Format[T] are collected at setting load time in the
'references' setting. These are used to know which tasks should be persisted (the ScopedKey)
and how to persist them (the Format).
When checking/delegating previous references, rules are slightly different.
A normal reference from a task t in scope s cannot refer to t in s unless
there is an earlier definition of t in s. However, a previous reference
does not have this restriction. This commit modifies validateReferenced
to allow this.
TODO: user documentation
TODO: stable selection of the Format when there are multiple .previous calls on the same task
TODO: make it usable in InputTasks, specifically Parsers
Set sbt.task.timings=true to print timings for tasks.
This sample progress handler shows how to get names for tasks and
deal with flatMapped tasks. There are still some tasks that make
it through as anonymous, which needs to be investigated.
A setting to provide a custom handler should come in a subsequent commit.
Needed an explicit type in PMap to workaround an error.
Need to drop tuple assignment of parser.parsed in input task macro as a workaround
for macro/resetAllAttrs/pattern matching/annotation issue in RC1.
1. KList[M[_]] now instead of KList[HL <: HList, M[_]]
a. head, tail work properly in this variant
b. disadvantage is that full type not easily transformed to new type constructor
2. AList abstracts on K[L[x]], a higher order type constructor.
A. Instances written for:
a. KList
b. Seq[M[T]] for a fixed T
c. TupleN
d. single values
e. operate on one type constructor when nested
B. Main disadvantage is type inference. It just doesn't happen for K[L[x]].
This is mitigated by AList being used internally and rarely needing to construct a K.
Moves many methods previously provided by implicit conversions directly onto the classes
for better discoverability, especially with scaladoc.
1. Initialize now allowed in more places. Minor renamings in Initialize to avoid conflicts
a. map -> apply
b. get -> evaluate
2. Identity on Scoped* is deprecated- it is now redundant
3. Can now use += and <+= for String, Int, Long, Double settings.
There may be some problematic corner cases in inference, especially with +=, ++, <+=, <++=
4. Some classes with a scoped: ScopedKey[T] method now have scopedKey: ScopedKey[T] instead.
5. The implicit conversion to ScopedKey[T] is now deprecated. Use the scopedKey method.
6. :== and ::= are now private[sbt] to better reflect that they were internal use only.
KList.map -> transform
can now drop trailing 'H' from multi-Task 'mapH'
compressed Action hierarchy by merging (Flat)Map{ped,All,Failure} into (Flat)Mapped
moved most information in Info into attributes: AttributeMap to allow future changes
Mark Harrah
Dan Sanduleac
James Roper
cheeseng
Paolo G. Giarrusso
Grzegorz Kossakowski
Eugene Vigdorchik