Question

我有以下代码：

s"""java ${MemString} -jar ${toolsFolder}/GenomeAnalysisTK.jar -T IndelRealigner -R ${refFolder}/${RefFileName} -I ${tmpFolder}/region${chrRegion}.bam
    -targetIntervals ${tmpFolder}/region${chrRegion}.intervals -o ${tmpFolder}/region${chrRegion}-2.bam -L ${tmpFolder}/bed${chrRegion}.bed""" !
s"rm -rf ${tmpFolder}/region${chrRegion}.bam, ${tmpFolder}/region${chrRegion}.bai, ${tmpFolder}/region${chrRegion}.intervals" !

由于第一行有一个很大的输入字符串，我试图为进程使用多行字符串输入。但我收到以下错误：

sbt package
[info] Set current project to DNASeqAnalyzer (in build file:/home/sarthaksharma/Lab3/dnaseq_analyzer/)
[info] Compiling 1 Scala source to /home/sarthaksharma/Lab3/dnaseq_analyzer/target/scala-2.11/classes...
[error]    /home/sarthaksharma/Lab3/dnaseq_analyzer/src/main/scala/DNASeqAnalyzer.scala:148    : type mismatch;
[error]  found   : String
[error]  required: scala.sys.process.ProcessLogger
[error]             s"rm -rf ${tmpFolder}/region${chrRegion}.bam, ${tmpFolder}/region${chrRegion}.bai, ${tmpFolder}/region${chrRegion}.intervals" !
[error]             ^
[error] one error found
[error] (compile:compileIncremental) Compilation failed

如果我评论代码的第一行，它运行正常。为什么它显示不同行的错误？我该怎么办呢？

Answer 1

问题出现是因为您点击了替代方法.!(logger)，而不是没有参数的方法。所以尽量明确地写点：

s"""long 
command""".!
s"another command".!

另外，我建议你将任何命令构造为字符串序列，这解决了你的长命令问题，并且对于如何解释（和转义）参数不那么模糊：

Seq(
  "command",
  s"option=${value}",
  "argument"
).!

使用多行输入Scala流程包

1 个答案: