I fixed the error by invoking Copy command with abs source path.

srcPath, _ := 
e := util.Copy(srcPath, dst)

If i could modify into a single line

util.Copy(filepath.Abs(filepath.Dir(src)), dst)
Throws error as filepath.Abs(filepath.Dir(src)) returns a tuple.  

In scala i can use _1, _2 to access elements within a tuple. any 
suggestions in Go?

On Tuesday, January 17, 2017 at 10:50:51 AM UTC-8, Deepak Jain wrote:
>
> 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> 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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>

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