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/* sbt -- Simple Build Tool
* Copyright 2009 Mark Harrah
*/
package sbt
import java.lang.{ Process => JProcess, ProcessBuilder => JProcessBuilder }
import java.io.{ Closeable, File, IOException }
import java.io.{ BufferedReader, InputStream, InputStreamReader, OutputStream, PipedInputStream, PipedOutputStream }
import java.net.URL
trait ProcessExtra {
import Process._
implicit def builderToProcess(builder: JProcessBuilder): ProcessBuilder = apply(builder)
implicit def fileToProcess(file: File): FilePartialBuilder = apply(file)
implicit def urlToProcess(url: URL): URLPartialBuilder = apply(url)
@deprecated("Use string interpolation", "0.13.0")
implicit def xmlToProcess(command: scala.xml.Elem): ProcessBuilder = apply(command)
implicit def buildersToProcess[T](builders: Seq[T])(implicit convert: T => SourcePartialBuilder): Seq[SourcePartialBuilder] = applySeq(builders)
implicit def stringToProcess(command: String): ProcessBuilder = apply(command)
implicit def stringSeqToProcess(command: Seq[String]): ProcessBuilder = apply(command)
}
/** Methods for constructing simple commands that can then be combined. */
object Process extends ProcessExtra {
def apply(command: String): ProcessBuilder = apply(command, None)
def apply(command: Seq[String]): ProcessBuilder = apply(command.toArray, None)
def apply(command: String, arguments: Seq[String]): ProcessBuilder = apply(command :: arguments.toList, None)
/** create ProcessBuilder with working dir set to File and extra environment variables */
def apply(command: String, cwd: File, extraEnv: (String, String)*): ProcessBuilder =
apply(command, Some(cwd), extraEnv: _*)
/** create ProcessBuilder with working dir set to File and extra environment variables */
def apply(command: Seq[String], cwd: File, extraEnv: (String, String)*): ProcessBuilder =
apply(command, Some(cwd), extraEnv: _*)
/** create ProcessBuilder with working dir optionally set to File and extra environment variables */
def apply(command: String, cwd: Option[File], extraEnv: (String, String)*): ProcessBuilder = {
apply(command.split("""\s+"""), cwd, extraEnv: _*)
// not smart to use this on windows, because CommandParser uses \ to escape ".
/*CommandParser.parse(command) match {
case Left(errorMsg) => error(errorMsg)
case Right((cmd, args)) => apply(cmd :: args, cwd, extraEnv : _*)
}*/
}
/** create ProcessBuilder with working dir optionally set to File and extra environment variables */
def apply(command: Seq[String], cwd: Option[File], extraEnv: (String, String)*): ProcessBuilder = {
val jpb = new JProcessBuilder(command.toArray: _*)
cwd.foreach(jpb directory _)
extraEnv.foreach { case (k, v) => jpb.environment.put(k, v) }
apply(jpb)
}
def apply(builder: JProcessBuilder): ProcessBuilder = new SimpleProcessBuilder(builder)
def apply(file: File): FilePartialBuilder = new FileBuilder(file)
def apply(url: URL): URLPartialBuilder = new URLBuilder(url)
@deprecated("Use string interpolation", "0.13.0")
def apply(command: scala.xml.Elem): ProcessBuilder = apply(command.text.trim)
def applySeq[T](builders: Seq[T])(implicit convert: T => SourcePartialBuilder): Seq[SourcePartialBuilder] = builders.map(convert)
def apply(value: Boolean): ProcessBuilder = apply(value.toString, if (value) 0 else 1)
def apply(name: String, exitValue: => Int): ProcessBuilder = new DummyProcessBuilder(name, exitValue)
def cat(file: SourcePartialBuilder, files: SourcePartialBuilder*): ProcessBuilder = cat(file :: files.toList)
def cat(files: Seq[SourcePartialBuilder]): ProcessBuilder =
{
require(files.nonEmpty)
files.map(_.cat).reduceLeft(_ #&& _)
}
}
trait SourcePartialBuilder extends NotNull {
/** Writes the output stream of this process to the given file. */
def #>(f: File): ProcessBuilder = toFile(f, false)
/** Appends the output stream of this process to the given file. */
def #>>(f: File): ProcessBuilder = toFile(f, true)
/**
* Writes the output stream of this process to the given OutputStream. The
* argument is call-by-name, so the stream is recreated, written, and closed each
* time this process is executed.
*/
def #>(out: => OutputStream): ProcessBuilder = #>(new OutputStreamBuilder(out))
def #>(b: ProcessBuilder): ProcessBuilder = new PipedProcessBuilder(toSource, b, false, ExitCodes.firstIfNonzero)
private def toFile(f: File, append: Boolean) = #>(new FileOutput(f, append))
def cat = toSource
protected def toSource: ProcessBuilder
}
trait SinkPartialBuilder extends NotNull {
/** Reads the given file into the input stream of this process. */
def #<(f: File): ProcessBuilder = #<(new FileInput(f))
/** Reads the given URL into the input stream of this process. */
def #<(f: URL): ProcessBuilder = #<(new URLInput(f))
/**
* Reads the given InputStream into the input stream of this process. The
* argument is call-by-name, so the stream is recreated, read, and closed each
* time this process is executed.
*/
def #<(in: => InputStream): ProcessBuilder = #<(new InputStreamBuilder(in))
def #<(b: ProcessBuilder): ProcessBuilder = new PipedProcessBuilder(b, toSink, false, ExitCodes.firstIfNonzero)
protected def toSink: ProcessBuilder
}
trait URLPartialBuilder extends SourcePartialBuilder
trait FilePartialBuilder extends SinkPartialBuilder with SourcePartialBuilder {
def #<<(f: File): ProcessBuilder
def #<<(u: URL): ProcessBuilder
def #<<(i: => InputStream): ProcessBuilder
def #<<(p: ProcessBuilder): ProcessBuilder
}
/**
* Represents a process that is running or has finished running.
* It may be a compound process with several underlying native processes (such as 'a #&& b`).
*/
trait Process extends NotNull {
/** Blocks until this process exits and returns the exit code.*/
def exitValue(): Int
/** Destroys this process. */
def destroy(): Unit
}
/** Represents a runnable process. */
trait ProcessBuilder extends SourcePartialBuilder with SinkPartialBuilder {
/**
* Starts the process represented by this builder, blocks until it exits, and returns the output as a String. Standard error is
* sent to the console. If the exit code is non-zero, an exception is thrown.
*/
def !! : String
/**
* Starts the process represented by this builder, blocks until it exits, and returns the output as a String. Standard error is
* sent to the provided ProcessLogger. If the exit code is non-zero, an exception is thrown.
*/
def !!(log: ProcessLogger): String
/**
* Starts the process represented by this builder. The output is returned as a Stream that blocks when lines are not available
* but the process has not completed. Standard error is sent to the console. If the process exits with a non-zero value,
* the Stream will provide all lines up to termination and then throw an exception.
*/
def lines: Stream[String]
/**
* Starts the process represented by this builder. The output is returned as a Stream that blocks when lines are not available
* but the process has not completed. Standard error is sent to the provided ProcessLogger. If the process exits with a non-zero value,
* the Stream will provide all lines up to termination but will not throw an exception.
*/
def lines(log: ProcessLogger): Stream[String]
/**
* Starts the process represented by this builder. The output is returned as a Stream that blocks when lines are not available
* but the process has not completed. Standard error is sent to the console. If the process exits with a non-zero value,
* the Stream will provide all lines up to termination but will not throw an exception.
*/
def lines_! : Stream[String]
/**
* Starts the process represented by this builder. The output is returned as a Stream that blocks when lines are not available
* but the process has not completed. Standard error is sent to the provided ProcessLogger. If the process exits with a non-zero value,
* the Stream will provide all lines up to termination but will not throw an exception.
*/
def lines_!(log: ProcessLogger): Stream[String]
/**
* Starts the process represented by this builder, blocks until it exits, and returns the exit code. Standard output and error are
* sent to the console.
*/
def ! : Int
/**
* Starts the process represented by this builder, blocks until it exits, and returns the exit code. Standard output and error are
* sent to the given ProcessLogger.
*/
def !(log: ProcessLogger): Int
/**
* Starts the process represented by this builder, blocks until it exits, and returns the exit code. Standard output and error are
* sent to the console. The newly started process reads from standard input of the current process.
*/
def !< : Int
/**
* Starts the process represented by this builder, blocks until it exits, and returns the exit code. Standard output and error are
* sent to the given ProcessLogger. The newly started process reads from standard input of the current process.
*/
def !<(log: ProcessLogger): Int
/** Starts the process represented by this builder. Standard output and error are sent to the console.*/
def run(): Process
/** Starts the process represented by this builder. Standard output and error are sent to the given ProcessLogger.*/
def run(log: ProcessLogger): Process
/** Starts the process represented by this builder. I/O is handled by the given ProcessIO instance.*/
def run(io: ProcessIO): Process
/**
* Starts the process represented by this builder. Standard output and error are sent to the console.
* The newly started process reads from standard input of the current process if `connectInput` is true.
*/
def run(connectInput: Boolean): Process
/**
* Starts the process represented by this builder, blocks until it exits, and returns the exit code. Standard output and error are
* sent to the given ProcessLogger.
* The newly started process reads from standard input of the current process if `connectInput` is true.
*/
def run(log: ProcessLogger, connectInput: Boolean): Process
def runBuffered(log: ProcessLogger, connectInput: Boolean): Process
/** Constructs a command that runs this command first and then `other` if this command succeeds.*/
def #&&(other: ProcessBuilder): ProcessBuilder
/** Constructs a command that runs this command first and then `other` if this command does not succeed.*/
def #||(other: ProcessBuilder): ProcessBuilder
/**
* Constructs a command that will run this command and pipes the output to `other`.
* `other` must be a simple command.
* The exit code will be that of `other` regardless of whether this command succeeds.
*/
def #|(other: ProcessBuilder): ProcessBuilder
/** Constructs a command that will run this command and then `other`. The exit code will be the exit code of `other`.*/
def ###(other: ProcessBuilder): ProcessBuilder
def canPipeTo: Boolean
}
/** Each method will be called in a separate thread.*/
final class ProcessIO(val writeInput: OutputStream => Unit, val processOutput: InputStream => Unit, val processError: InputStream => Unit, val inheritInput: JProcessBuilder => Boolean) extends NotNull {
def withOutput(process: InputStream => Unit): ProcessIO = new ProcessIO(writeInput, process, processError, inheritInput)
def withError(process: InputStream => Unit): ProcessIO = new ProcessIO(writeInput, processOutput, process, inheritInput)
def withInput(write: OutputStream => Unit): ProcessIO = new ProcessIO(write, processOutput, processError, inheritInput)
}
trait ProcessLogger {
def info(s: => String): Unit
def error(s: => String): Unit
def buffer[T](f: => T): T
}
