enso/project/Cargo.scala
2020-08-14 11:10:52 +02:00

50 lines
1.3 KiB
Scala

import sbt.Keys._
import sbt._
import sbt.internal.util.ManagedLogger
import scala.sys.process._
/** A wrapper for executing the command `cargo`. */
object Cargo {
/** The version of rust that needs to be installed. */
val rustVersion = settingKey[String]("rustc version used in the project")
private val cargoCmd = "cargo"
/** Checks rust version and executes the command `cargo $args`. */
def apply(args: String): Def.Initialize[Task[Unit]] = Def.task {
run(args, rustVersion.value, state.value.log)
}
/** Checks rust version and executes the command `cargo $args`. */
def run(args: String, rustVersion: String, log: ManagedLogger): Unit = {
val cmd = s"$cargoCmd $args"
if (!cargoOk(log))
throw new RuntimeException("Cargo isn't installed!")
if (!EnvironmentCheck.rustVersionOk(rustVersion, log))
throw new RuntimeException("Rust version mismatch!")
log.info(cmd)
try cmd.!! catch {
case _: RuntimeException =>
throw new RuntimeException("Cargo command failed.")
}
}
/** Checks that cargo is installed. Logs an error and returns false if not. */
def cargoOk(log: ManagedLogger): Boolean = {
try s"$cargoCmd version".!! catch {
case _: RuntimeException =>
log.error(s"The command `cargo` isn't on path. Did you install cargo?")
return false
}
true
}
}