In this part:
Changing RubyMine properties
RubyMine makes it possible to change the
*.vmoptions and the
idea.properties files without editing them in the RubyMine installation folder.
Managing the *.vmoptions file
The location of the
*.vmoptions file depends on your operating system:
- For Windows:
<RubyMine installation folder>/bin/rubymine.exe.vmoptionsor
<RubyMine installation folder>/bin/rubymine64.exe.vmoptions
- For *NIX:
<RubyMine installation folder>/bin/rubymine.vmoptionsor
<RubyMine installation folder>/bin/rubymine64.vmoptions
- For macOS, you need to make a copy of the
rubymine.vmoptionsfile in the IDE preferences folder and then edit this copy. The reason is that the app bundle is signed and you should not modify any files inside the bundle.
For older versions, the settings are stored in
To avoid editing files in the RubyMine installation folder, do one of the following:
- From the main menu, choose to create a copy of the
rubymine.vmoptionsfile in the user home directory.
- Copy the existing file from the RubyMine installation folder somewhere and save the path to this location in the
RUBYMINE_VM_OPTIONSenvironment variable (
IDEA64_VM_OPTIONSfor 64 bit systems).
- Copy the existing
<RubyMine installation folder>/bin/rubymine.exe.vmoptionsor the
<RubyMine installation folder>/bin/rubymine64.exe.vmoptionsfile from the RubyMine installation folder into your user home directory.
Then edit this file in the new location.
RUBYMINE_VM_OPTIONS environment variable is defined, or the
*.vmoptions file exists, this file is used instead of the one located in the RubyMine installation folder.
Example: Increasing the heap size
To increase RubyMine heap size, you should copy the original
rubymine.vmoptions file to the above-mentioned location, and then modify the
Managing the idea.properties file
idea.properties file located in the
bin directory of the RubyMine installation folder should not be edited. Instead of editing the original
idea.properties file, create an
idea.properties file in the following location, open it for editing and add the required properties:
- For Windows:
- For *NIX:
- For macOS:
Example: Changing the case of unicode literals
RubyMine allows defining whether non-ascii characters should use literals like
This behavior is controlled by the
idea.native2ascii.lowercase system property. By default, upper-case characters are used.
If you wish to use lower-case characters, create the
idea.properties file in the location specified above, open it for editing and add the following line:
Specifying custom JDK, properties, or vmoptions files across platforms
A custom JDK, as well as
*.vmoptions files are specified across platforms in a unified way.
All launchers look at the following environment variables: