在其中一个项目中是否有任何build.sbt示例，其中包含多项目设置和自定义任务？ 我无法弄清楚正确的语法。我在顶级项目上有一个自定义任务。我也有一个多项目构建。但是将它们组合在一起非常棘手。
答案 0 :(得分：0)
My web3j-scala project这样做。这是完整的build.sbt：
val web3jVersion = "3.1.0"
lazy val commonSettings = Seq(
cancelable := true,
buildInfoKeys ++= Seq[BuildInfoKey]( // assumes that the git repo directory has not been renamed
"gitRepoName" -> new File(sys.props("user.dir")).getName
),
developers := List(
Developer("mslinn",
"Mike Slinn",
"mslinn@micronauticsresearch.com",
url("https://github.com/mslinn")
)
),
// define the statements initially evaluated when entering 'console', 'console-quick', but not 'console-project'
initialCommands in console := """
|""".stripMargin,
javacOptions ++= Seq(
"-Xlint:deprecation",
"-Xlint:unchecked",
"-source", "1.8",
"-target", "1.8",
"-g:vars"
),
libraryDependencies ++= Seq(
"commons-io" % "commons-io" % "2.6" withSources(),
"ch.qos.logback" % "logback-classic" % "1.2.3",
"com.github.scopt" %% "scopt" % "3.7.0" withSources(),
//
"org.scalatest" %% "scalatest" % "3.0.3" % Test withSources(),
"junit" % "junit" % "4.12" % Test
),
licenses += ("Apache-2.0", url("https://www.apache.org/licenses/LICENSE-2.0.html")),
logLevel := Level.Warn,
// Only show warnings and errors on the screen for compilations.
// This applies to both test:compile and compile and is Info by default
logLevel in compile := Level.Warn,
// Level.INFO is needed to see detailed output when running tests
logLevel in test := Level.Info,
organization := "com.micronautics",
resolvers ++= Seq(
"Ethereum Maven" at "https://dl.bintray.com/ethereum/maven/"
),
scalacOptions ++= Seq( // From https://tpolecat.github.io/2017/04/25/scalac-flags.html
"-deprecation", // Emit warning and location for usages of deprecated APIs.
"-encoding", "utf-8", // Specify character encoding used by source files.
"-explaintypes", // Explain type errors in more detail.
"-feature", // Emit warning and location for usages of features that should be imported explicitly.
"-language:existentials", // Existential types (besides wildcard types) can be written and inferred
"-language:experimental.macros", // Allow macro definition (besides implementation and application)
"-language:higherKinds", // Allow higher-kinded types
"-language:implicitConversions", // Allow definition of implicit functions called views
"-unchecked", // Enable additional warnings where generated code depends on assumptions.
"-Xcheckinit", // Wrap field accessors to throw an exception on uninitialized access.
//"-Xfatal-warnings", // Fail the compilation if there are any warnings.
"-Xfuture", // Turn on future language features.
"-Xlint:adapted-args", // Warn if an argument list is modified to match the receiver.
"-Xlint:by-name-right-associative", // By-name parameter of right associative operator.
"-Xlint:constant", // Evaluation of a constant arithmetic expression results in an error.
"-Xlint:delayedinit-select", // Selecting member of DelayedInit.
"-Xlint:doc-detached", // A Scaladoc comment appears to be detached from its element.
"-Xlint:inaccessible", // Warn about inaccessible types in method signatures.
"-Xlint:infer-any", // Warn when a type argument is inferred to be `Any`.
"-Xlint:missing-interpolator", // A string literal appears to be missing an interpolator id.
"-Xlint:nullary-override", // Warn when non-nullary `def f()' overrides nullary `def f'.
"-Xlint:nullary-unit", // Warn when nullary methods return Unit.
"-Xlint:option-implicit", // Option.apply used implicit view.
"-Xlint:package-object-classes", // Class or object defined in package object.
"-Xlint:poly-implicit-overload", // Parameterized overloaded implicit methods are not visible as view bounds.
"-Xlint:private-shadow", // A private field (or class parameter) shadows a superclass field.
"-Xlint:stars-align", // Pattern sequence wildcard must align with sequence component.
"-Xlint:type-parameter-shadow", // A local type parameter shadows a type already in scope.
"-Xlint:unsound-match", // Pattern match may not be typesafe.
"-Yno-adapted-args", // Do not adapt an argument list (either by inserting () or creating a tuple) to match the receiver.
"-Ypartial-unification", // Enable partial unification in type constructor inference
//"-Ywarn-dead-code", // Warn when dead code is identified.
"-Ywarn-extra-implicit", // Warn when more than one implicit parameter section is defined.
"-Ywarn-inaccessible", // Warn about inaccessible types in method signatures.
"-Ywarn-infer-any", // Warn when a type argument is inferred to be `Any`.
"-Ywarn-nullary-override", // Warn when non-nullary `def f()' overrides nullary `def f'.
"-Ywarn-nullary-unit", // Warn when nullary methods return Unit.
"-Ywarn-numeric-widen" // Warn when numerics are widened.
//"-Ywarn-unused:implicits", // Warn if an implicit parameter is unused.
//"-Ywarn-unused:imports", // Warn if an import selector is not referenced.
//"-Ywarn-unused:locals", // Warn if a local definition is unused.
//"-Ywarn-unused:params", // Warn if a value parameter is unused.
//"-Ywarn-unused:patvars", // Warn if a variable bound in a pattern is unused.
//"-Ywarn-unused:privates", // Warn if a private member is unused.
//"-Ywarn-value-discard" // Warn when non-Unit expression results are unused.
),
// The REPL can’t cope with -Ywarn-unused:imports or -Xfatal-warnings so turn them off for the console
scalacOptions in (Compile, console) --= Seq("-Ywarn-unused:imports", "-Xfatal-warnings"),
scmInfo := Some(
ScmInfo(
url("https://github.com/mslinn/web3j-scala"),
"git@github.com:mslinn/web3j-scala.git"
)
),
version := "0.5.0"
)
lazy val demo = project
.aggregate(root)
.settings(
// define the statements to be evaluated when entering 'console' and 'consoleQuick' but not 'consoleProject'
initialCommands in console := """import java.math.BigInteger
|import java.util.concurrent.Future
|import org.web3j.protocol._
|import org.web3j.protocol.infura._
|""".stripMargin,
name := "demo",
unmanagedSourceDirectories in Compile += baseDirectory.value / "../abiWrapper"
).dependsOn(root)
lazy val root = (project in file("root"))
.settings(
// define the statements initially evaluated when entering 'console', 'console-quick', but not 'console-project'
initialCommands in console := """
|""".stripMargin,
libraryDependencies ++= Seq(
// See https://docs.web3j.io/modules.html
"org.web3j" % "abi" % web3jVersion withSources(), // Application Binary Interface encoders
"org.web3j" % "codegen" % web3jVersion withSources(), // Code generators
"org.web3j" % "console" % web3jVersion withSources(), // Command-line tools
"org.web3j" % "core" % web3jVersion withSources(),
"org.web3j" % "crypto" % web3jVersion withSources(), // For transaction signing and key/wallet management
"org.web3j" % "geth" % web3jVersion withSources(), // Geth-specific JSON-RPC module
"org.web3j" % "infura" % web3jVersion withSources(), // Infura-specific HTTP header support
"org.web3j" % "parity" % web3jVersion withSources(), // Parity-specific JSON-RPC module
// "org.web3j" % "quorum" % "0.7.0" withSources(), // integration with JP Morgan's Quorum
"org.web3j" % "rlp" % web3jVersion withSources(), // Recursive Length Prefix (RLP) encoders
// "org.web3j" % "tuples" % web3jVersion withSources(), // See http://www.javatuples.org ... not needed for Scala?
"org.web3j" % "utils" % web3jVersion withSources(), // Minimal set of utility classes
"org.web3j" % "web3j-maven-plugin" % "0.1.2" withSources(), // Create Java classes from solidity contract files
//
"org.scala-lang.modules" %% "scala-java8-compat" % "0.8.0",
"ch.qos.logback" % "logback-classic" % "1.2.3",
//
"org.scalatest" %% "scalatest" % "3.0.3" % Test withSources(),
"junit" % "junit" % "4.12" % Test
),
name := "root"
)