I need to copy a file in Groovy and saw some ways to achieve it on the web:
1
new AntBuilder().copy( file:"$sourceFile.canonicalPath",
tofile:"$destFile.canonicalPath")
2
command = ["sh", "-c", "cp src/*.txt dst/"]
Runtime.getRuntime().exec((String[]) command.toArray())
3
destination.withDataOutputStream { os->
source.withDataInputStream { is->
os << is
}
}
4
import java.nio.file.Files
import java.nio.file.Paths
Files.copy(Paths.get(a), Paths.get(b))
The 4th way seems cleanest to me as I am not sure how good is it to use AntBuilder and how heavy it is, I saw some people reporting issues with Groovy version change.
2nd way is OS dependent, 3rd might not be efficient.
Is there something in Groovy to just copy files like in the 4th statement or should I just use Java for it?
Best Answer
If you have Java 7, I would definitely go with
With the java.nio.file.Path class, it can work with symbolic and hard links. From java.nio.file.Files:
Just as references:
Copy files from one folder to another with Groovy
http://groovyconsole.appspot.com/view.groovy?id=8001
My second option would be the
ant
task withAntBuilder
.