Rspec package includes its own build system
{
"cmd": ["rspec", "-I ${file_path}", "$file"],
"file_regex": "# ([A-Za-z:0-9_./ ]+rb):([0-9]+)",
"working_dir": "${project_path:${folder:${file_path}}}",
"selector": "source.ruby",
"windows":
{
"cmd": ["rspec.bat", "-I ${file_path}", "$file"]
}
}
Tools- > BuildSystem , Ruby. , BuildSystem