Thanks for pointing to https://github.com/juju/utils/blob/master/fs/copy.go


I was testing Copy function that recursively copies directories. I am able 
to copy first level of files and it creates directories. It fails to copy 
the contents within those directories. 

func Copy(src, dst string) error {...}

Error

$ triggerCopyCommand.go
lstat sd101-jvm/target/*.jar: no such file or directory ---> This is OK. As 
it does not exists.
lstat sd101-python/sd101/*: no such file or directory  ---> This exists in 
the directory from which Copy is invoked.
lstat sd101-r/sd101/*: no such file or directory   ---> This exists.
lstat sd101-shell/sd101/*: no such file or directory ---> This exists.

$ ls sd101-python/sd101/ 
__init__.py prepare setup.py train
$ 

$ ls sd101-r/sd101/
helloWorld.R
$ ls sd101-shell/sd101/
ls: sd101-shell/sd101/: No such file or directory
$ 


Any suggestions ?


Can this code be 
replicated https://github.com/juju/utils/blob/master/fs/copy.go ? Or do you 
recommend using it as a library ?

On Tuesday, January 17, 2017 at 2:12:29 AM UTC-8, rog wrote:
>
> You don't really need to use the external cp command: 
> https://play.golang.org/p/F1YHzQL4UN 
>
>
> On 16 January 2017 at 21:35, Deepak Jain <deep...@gmail.com <javascript:>> 
> wrote: 
> > util.ExecuteCommandWithOuput(exec.Command("cp", "-r", "./*.json", 
> > artifact.dir)) 
> > 
> > func ExecuteCommandWithOuput(cmd *exec.Cmd) { 
> > output, err := cmd.Output() 
> > if err != nil { 
> > log.Print("Error executing ", cmd.Args, err) 
> > } 
> > fmt.Print(string(output)) 
> > } 
> > 
> > 
> > Output 
> > 
> > 2017/01/16 13:26:35 Error executing [cp -r ./*.json myartifact] exit 
> status 
> > 1 
> > 
> > 
> > Questions 
> > 1. How do i get details of complete error message on failure of cp 
> command ? 
> > I did have err != nill and Print err 
> > 2. Does exec.Command not support copy of files and recursive copy of 
> > directories ? 
> > 3. Any suggestions how i implement copy of files and recursive copy of 
> > directories ? 
> > 
> > I have just started adopting Go and hence a new comer with Go. 
> > Regards, 
> > Deepak 
> > 
> > -- 
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