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How to create a gem

· One min read
ひかり
ひかり
Main bloger

Creating a Template​

bundle gem <GEM Name> -t
cd <GEM Name>

Editing the Gemspec​

  1. Open <GEM Name>.gemspec.
  2. Edit spec.summary, spec.description, spec.homepage,
  3. Write the homepage URL to spec.metadata["allowed_push_host"]
  4. Write the Gem's page to spec.homepage
  5. Write the repository URL to spec.metadata["source_code_uri"]
  6. Write the URL of changelog.md to spec.metadata["changelog_uri"]

Set at least this much.

Push to GitHub and Install​

git init
git add .
git commit -m First Commit
git remote add origin [email protected]:<username>/<GEM Name>.git
git push -u origin master

Install​

gem install specific_instal
gem specific_install -l "git://github.com/<username>/<GEM Name>.git"

Gemfile​

gem "<GEM Name>", github: "<username>/<GEM Name>.git", branch: :main