inst/tools/viewers.R

In beauchamplab/firstPkg:

to_module <- function(module_id, sidebar_width = 3){
  quos = parse_components(module_id)
  
  tempdir = file.path(tempdir(), 'rave_modules', module_id)
  dir.create(tempdir, showWarnings = F, recursive = T)
  tmpfile = tempfile(pattern = module_id, tmpdir = tempdir)
  
  asis = quos$script_env$asis
  asis %?<-% FALSE
  
  src = sapply(quos$script_env$source, function(f){
    
    if(f != '' && file.exists(f)){
      
      if(!asis){
        # This file is valid R script, 
        fname = unlist(stringr::str_split(stringr::str_trim(f), '/|\\\\'))
        fname = tail(fname, 1)
        
        fpath = file.path(tempdir, fname)
        file.copy(f, fpath, overwrite = TRUE)
        
        cat2("Copying ", f, ' >> ', fpath)
        
        # if the file ends with .R, source it
        if(stringr::str_detect(fname, pattern = '\\.[Rr]$')){
          quo = rlang::quo(source(!!fname, local = TRUE))
          expr = paste(deparse(rlang::quo_squash(quo)), collapse = '\n')
          return(expr)
        }
      }else{
        if(stringr::str_detect(f, pattern = '\\.[Rr]$')){
          quo = rlang::quo(source(!!f, local = TRUE))
          expr = paste(deparse(rlang::quo_squash(quo)), collapse = '\n')
          return(expr)
        }
      }
      
      
    }else{
      cat2("Cannot find path to ", f, level = 'ERROR')
    }
    return(NULL)
  })
  names(src) = NULL
  
  
  pkg_name = get_package_name()
  
  exec = rlang::quo(rave_execute(!!!get_main_function(module_id))) 
  
  funs = sapply(names(quos$output_functions), function(nm){
    f = quos$output_functions[[nm]]
    
    s = paste(deparse(rlang::quo_squash(f)), collapse = '\n')
    s = paste(nm, '<-', s)
    s
  }, simplify = T, USE.NAMES = F)
  
  s = unlist(c(
    src, 
    deparse(rlang::quo_squash(quos$rave_inputs_quo)),
    deparse(rlang::quo_squash(quos$rave_update_quo)),
    deparse(rlang::quo_squash(quos$rave_output_quo)),
    deparse(rlang::quo_squash(exec)),
    funs
  ))
  
  writeLines(s, tmpfile)
  m = rave::ModuleEnvir$new(module_id = module_id, label_name = get_module_label(module_id),
                            script_path = tmpfile, parent_env = loadNamespace(pkg_name))
  m$sidebar_width = sidebar_width
  m
}

view_layout <- function(module_id, sidebar_width = 5, launch.browser = rstudio_viewer){ 
  
  env = reload_this_package()
  
  m = env$to_module(module_id = module_id, sidebar_width = sidebar_width)
  rave::init_app(m, launch.browser = launch.browser, disable_sidebar = T, simplify_header = T)
  
}