func (r RDocument) knit() {
script := assets.NewRScript("knit.r")
defer script.Remove()
prgrm := script.WriteWrapper()
args := []string{"--input", r.InputFile, "--outdir", r.OutDir}
log.Printf("Running: %s %s", prgrm, strings.Join(args, " "))
cmd := exec.Command(prgrm, args...)
output, err := cmd.CombinedOutput()
if err != nil {
log.Fatalf("Trouble with %s:\n\n%s\n\nOutput:\n%s\n\n",
prgrm, err, string(output))
}
}
func installPackages(installType string) {
log.Println("Installing R packages")
script := assets.NewRScript("install-packages.r")
defer script.Remove()
prgrm := script.WriteWrapper()
args := []string{installType}
log.Printf("Running: %s %s", prgrm, strings.Join(args, " "))
cmd := exec.Command(prgrm, args...)
cmd.Stdout = os.Stdout
cmd.Stderr = os.Stderr
err := cmd.Start()
if err != nil {
log.Fatalf("Trouble starting %s:\n\n%s\n\n",
prgrm, err)
}
if err = cmd.Wait(); err != nil {
log.Fatalf("Trouble running %s:\n\n%s\n\n",
prgrm, err)
}
}