* Add golangci-lint as linting tool
* Disable failing staticchecks to start; GitHub issue to handle coming soon
* Run `goimports -w` to repair all source files that have improperly
formatted imports
* makefile: Add ci-lint target to run on travis
This change adds a new make target for running golangci-lint on newly
added Go files only. This target is expected to run during Packer ci builds.
* .github/contributing: Add code linting instructions
* travis: Update job configuration to run parallel builds
When the driver is the esx5 driver s.l won't be set at all. Meaning this will crash.
In the esx5 driver we try to dial possible ports to see if it works so it doesn't make sense to use packer's `net.ListenRangeConfig`. It could make sense to have a net.DialRangeConfig but this sounds a bit too specific and not broad enough to do.
fix#7505
* I had to contextualise Communicator.Start and RemoteCmd.StartWithUi
NOTE: Communicator.Start starts a RemoteCmd but RemoteCmd.StartWithUi will run the cmd and wait for a return, so I renamed StartWithUi to RunWithUi so that the intent is clearer.
Ideally in the future RunWithUi will be named back to StartWithUi and the exit status or wait funcs of the command will allow to wait for a return. If you do so please read carrefully https://golang.org/pkg/os/exec/#Cmd.Stdout to avoid a deadlock
* cmd.ExitStatus to cmd.ExitStatus() is now blocking to avoid race conditions
* also had to simplify StartWithUi
Wilken Rivera
Sylvia Moss
Megan Marsh
Stephen Tawn
Lars Lehtonen
Prakash Sidaraddi
Adrien Delorme
Vladislav Rassokhin