9cbaacad32
As the command completes, the winrm.Command does not wait for its copy of
the remote.Command streams to report itself completed.
This adds an additional sync.WaitGroup to ensure that copy is finished up
before moving on, solving the data race.
Fixes the following data race:
```
==================
WARNING: DATA RACE
Read by goroutine 6:
github.com/hashicorp/terraform/communicator/winrm.TestStart()
/Users/phinze/go/src/github.com/hashicorp/terraform/communicator/winrm/communicator_test.go:79 +0xa44
testing.tRunner()
/private/var/folders/vd/7l9ys5k57l91x63sh28wl_kc0000gn/T/workdir/go/src/testing/testing.go:456 +0xdc
Previous write by goroutine 14:
bytes.(*Buffer).ReadFrom()
/private/var/folders/vd/7l9ys5k57l91x63sh28wl_kc0000gn/T/workdir/go/src/bytes/buffer.go:174 +0x465
io.copyBuffer()
/private/var/folders/vd/7l9ys5k57l91x63sh28wl_kc0000gn/T/workdir/go/src/io/io.go:375 +0x1a5
io.Copy()
/private/var/folders/vd/7l9ys5k57l91x63sh28wl_kc0000gn/T/workdir/go/src/io/io.go:351 +0x78
Goroutine 6 (running) created at:
testing.RunTests()
/private/var/folders/vd/7l9ys5k57l91x63sh28wl_kc0000gn/T/workdir/go/src/testing/testing.go:561 +0xaa3
testing.(*M).Run()
/private/var/folders/vd/7l9ys5k57l91x63sh28wl_kc0000gn/T/workdir/go/src/testing/testing.go:494 +0xe4
main.main()
github.com/hashicorp/terraform/communicator/winrm/_test/_testmain.go:62 +0x20f
Goroutine 14 (finished) created at:
github.com/hashicorp/terraform/communicator/winrm.runCommand()
/Users/phinze/go/src/github.com/hashicorp/terraform/communicator/winrm/communicator.go:151 +0xf8
==================
```
|
||
|---|---|---|
| .. | ||
| communicator.go | ||
| communicator_test.go | ||
| provisioner.go | ||
| provisioner_test.go | ||