是否有可能停止`Rscript`清理其`tempdir`? [英] Is it possible to stop `Rscript` cleaning up its `tempdir`?

问题描述

我正在通过Rscript和H2O使用R，但是H2O崩溃了.我想查看日志，但是包含R临时目录的R临时目录似乎在R会话结束时(即Rscript完成时)被删除了.

I'm using R, via Rscript and H2O, but H2O is crashing. I want to review the logs, but the R tempdir that contains them seem to be removed when the R session ends (i.e. when the Rscript finishes).

是否可以告诉R/Rscript不要删除它使用的tmp文件夹?

Is it possible to tell R/Rscript not to remove the tmp folder it uses?

推荐答案

为此，一种变通方法是使用on.exit获取临时文件并将其保存在其他目录中.一个示例函数将如下所示:

A work around for this would be to use on.exit to get the temporary files and save them in a different directory. An example function would be like this:

    ranfunction <- function(){
#Get list of files in tempdir
on.exit(templist <- list.files(tempdir(), full.names = T,pattern = "^file") )
#create a new directory for files to go on exit
#use add = T to add to the on.exit call
on.exit(dir.create(dir1 <- file.path("G:","testdir")),add = T  )
#for each file in templist assign it to the new directory   
on.exit(
      lapply(templist,function(x){
      file.create(assign(x, tempfile(tmpdir = dir1) ))})
  ,add=T)

}

ranfunction()

此功能未考虑的一件事是，如果重新运行它-由于新目录dir1已存在，将抛出错误.重新运行脚本之前，您必须删除dir1.

One thing this function does not take into account is that if you rerun it - it will throw an error because the new directory dir1 already exits. You would have to delete dir1 before re-running the script.

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