ruby - How to edit and test a gem I forked? -

i know can specify location of gem in gemfile if don't want use dummy rails app? (or if did use dummy rails app how this?) essentially, if wanted the equivalent of gem install 'foo' gem forked github , have edited myself. also, there no .gem file.

with .gem file can run gem install --force --local gem_name.gem

without .gem file, can build gem gemspec: gem build gem_name.gemspec

if don't have gemspec file, write 1 or use bundler maintain one

your .gem file archived file of gem itself.