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Starting with 2016.3 RubyMine uses rsync and sshpass utilities to speed up gem downloading in case remote interpreters are configured for an application (the command looks like: sshpass -p password rsync -zarv user@host:/remote/path /local/path).


Rsync is used by default while gem downloading if it is installed on a local machine. To switch it off please uncheck Registry option 'ide.remote.interpreters.use.rsync':

Gem downloading with rsync and sshpass

No matter you use a prepared Deployment configuration or SSH credentials to set up a remote Ruby interpreter configuration, rsync is being used. When setting up with SSH credentials you may either use certificates by choosing 'Key pair (OpenSSH or PuTTy)' in Auth type field or provide a password by choosing 'Password' accordingly. When password is provided, sshpass is being used. Please note that using sshpass may not be secure enough.

RubyMine informs you if any of these utilities is not installed on a local machine:

Installing sshpass

Based on and



Installing on OS X is tricky, since there is no official build for it. Before you get started, you need install xcode and command line tools.

Installing with Homebrew

Homebrew does not allow you to install sshpass by default. But you can use the following unofficial brew package for that:

Installing from the Source

Download the Source Code

Extract it and cd into the directory


Sshpass is not available as cygwin package. This means that you need to build and install from source. See for reference on existing alternative:

Installing rsync



Rsync is installed by default.


Windows: can be used on Windows systems but is only available through various ports (such as Cygwin).

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