Add function to copy files from another svn repo

[graceannobrien]

Example yaml (from-old.yaml)

pk_da:
  from: old-repo/script/data-assembly/pk-da.Rmd
  to: script/data-assembly/pk-da.Rmd

Example code to loop through from-old.yaml:

user <- "username"

files_to_grab <- yaml::read_yaml(here::here("script", "from-old.yaml"))

for(file.i in names(files_to_grab)) {

  if(file.exists(files_to_grab[[file.i]]$to)){next}

  command.i <-
    glue::glue(
      "svn export svn+ssh://{user}@mc1.metrumrg.com/common/repo/{files_to_grab[[file.i]]$from} {files_to_grab[[file.i]]$to}"  
    )

  system(command.i)
}

Example QC helper:

qc_helper <- function(.file, .username){

  from_old <- yaml::read_yaml(here::here("script/from-old.yaml")) %>% bind_rows()

  .from <- from_old %>% filter(to == .file) %>% pull(from)

  if(length(.from) == 0){
    stop(.file, " not found in yaml under 'to'")
  }

  from_temp <- tempfile(fileext = paste0(".", tools::file_ext(.from)))

  try(suppressWarnings(file.remove(from_temp)))

  svn_command <-
    glue::glue("svn export svn+ssh://{.username}@mc1.metrumrg.com/common/repo/{.from} {from_temp}")

  try_command <- try(system(svn_command))

  if(inherits(try_command, "try-error")){
    stop("Command ", svn_command)
  }

  diffobj::diffFile(
    target = from_temp,
    current = .file, 
    color.mode = "rgb",
    mode = "sidebyside",
    tar.banner = paste0("Old - ", basename(.file)),
    cur.banner = paste0("New - ", basename(.file))
  )

}