Drop support of Ruby < 2.2

[yskkin]

Drop support of Ruby < 2.2 since Support of Ruby 2.1 has ended.

[b264]

Besides making the CI run faster, does this actually offer any benefits? I'm curious what benefit this provides

[ctran]

Could you not update the Annotate version?

Thanks

[yskkin]

@b264

When I hack this gem, I found adding dependencies is difficult since we have to support ruby 1.9.

Moreover, current development branch actually does not support ruby 1.9: bundle install fails.

$ git show --oneline | head -n1
134b833 Add missing complete-foreign-keys option (introduced in #476) to bin (#477)
$ ruby --version
ruby 1.9.3p551 (2014-11-13 revision 48407) [x86_64-darwin16.6.0]
$ bundle install
Fetching gem metadata from https://rubygems.org/.........
Fetching version metadata from https://rubygems.org/...
Fetching dependency metadata from https://rubygems.org/..
Resolving dependencies...
Rubygems 1.8.23.2 is not threadsafe, so your gems will be installed one at a time. Upgrade to Rubygems 2.1.0 or higher to enable parallel gem installation.
Using rake 12.0.0
Using concurrent-ruby 1.0.5
Using i18n 0.8.4
Using minitest 5.10.2
Using thread_safe 0.3.6
Using arel 8.0.0
Using bump 0.5.4
Using yard 0.9.9
Fetching byebug 9.0.6
Installing byebug 9.0.6 with native extensions
Using formatador 0.2.5
Using rb-fsevent 0.10.2
Using ffi 1.9.18
Fetching ruby_dep 1.3.1
Installing ruby_dep 1.3.1
Using lumberjack 1.0.12
Using nenv 0.3.0
Using shellany 0.0.1
Using coderay 1.1.1
Using method_source 0.8.2
Using slop 3.6.0
Using thor 0.19.4
Using guard-compat 1.2.1
Using rspec-support 3.6.0
Using diff-lcs 1.2.5
Using ast 2.3.0
Using powerpack 0.1.1
Using ruby-progressbar 1.8.1
Using unicode-display_width 1.3.0
Using docile 1.1.5
Using json 2.1.0
Using simplecov-html 0.10.1
Using terminal-notifier-guard 1.7.0
Fetching tins 1.15.0
Installing tins 1.15.0
Using iniparse 1.4.3
Using unicode_utils 1.4.0
Using files 0.3.1
Using predicated 0.2.6
Using sexp_processor 4.9.0
Using bundler 1.15.1
Using mg 0.0.8
Using rainbow 2.2.2
Using tzinfo 1.2.3
Gem::InstallError: byebug requires Ruby version >= 2.0.0.
An error occurred while installing byebug (9.0.6), and Bundler
cannot continue.
Make sure that `gem install byebug -v '9.0.6'` succeeds before bundling.

In Gemfile:
  byebug

Even without development and test group,

$ bundle install --without='development test'
Fetching gem metadata from https://rubygems.org/.........
Fetching version metadata from https://rubygems.org/...
Fetching dependency metadata from https://rubygems.org/..
Resolving dependencies...
Rubygems 1.8.23.2 is not threadsafe, so your gems will be installed one at a time. Upgrade to Rubygems 2.1.0 or higher to enable parallel gem installation.
Using rake 12.0.0
Using concurrent-ruby 1.0.5
Using i18n 0.8.4
Using minitest 5.10.2
Using thread_safe 0.3.6
Using arel 8.0.0
Using bundler 1.15.1
Using tzinfo 1.2.3
Fetching activesupport 5.1.2
Installing activesupport 5.1.2
Gem::InstallError: activesupport requires Ruby version >= 2.2.2.
An error occurred while installing activesupport (5.1.2), and
Bundler cannot continue.
Make sure that `gem install activesupport -v '5.1.2'` succeeds before
bundling.

In Gemfile:
  activerecord was resolved to 5.1.2, which depends on
    activemodel was resolved to 5.1.2, which depends on
      activesupport

So I tried to

• make hacking easier for developers
• make it obvious that older version of ruby is not supported

[yskkin]

@ctran
Updated!

[ctran]

Thanks!!!

[b264]

👍