distributable:
  url: https://github.com/rubygems/rubygems/archive/refs/tags/v{{version}}.tar.gz
  strip-components: 1

versions:
  github: rubygems/rubygems

dependencies:
  ruby-lang.org: '>=2.3'

runtime:
  env:
    RUBYLIB: ${{prefix}}/lib

build:
  dependencies:
    gnu.org/patch: '*'
    ruby-lang.org: ~3.1 # testing a theory
  script:
    - ruby setup.rb
        --prefix={{prefix}}
        --env-shebang
        --no-ri
        --no-rdoc

    - run: |
        patch -p1 < "$SRCROOT"/props/fit-n-finish.patch
        patch -p1 < "$SRCROOT"/props/fit-n-finish.2.patch
        sed -i -e 's/Gem.default_dir/Gem.default_system_dir/' lib/rubygems/path_support.rb
      working-directory: ${{prefix}}

    - run: sed -i -e 's/Gem.state_home, "gem",/Gem.state_home,/' defaults.rb
      working-directory: ${{prefix}}/lib/rubygems
      if: '>=3.4'

    - run: patch -p1 < "$SRCROOT"/props/fit-n-finish.3.patch
      working-directory: ${{prefix}}
      if: '<3.5'

    - run: patch -p1 < "$SRCROOT"/props/fit-n-finish.4.patch
      working-directory: ${{prefix}}
      if: '>=3.5'

    - run: sed -i -e
        's/Dir\.mkdir dir, \*\[options\[:dir_mode\].*/FileUtils.mkdir_p dir, *[options[:dir_mode] \&\& 0o755].compact/'
        installer.rb
      working-directory: ${{prefix}}/lib/rubygems

    # these are provided by ruby-lang.org
    # they turn up here since that is how gem handles deps
    # but ruby is in PATH and has these and that is the preference
    - run: rm rake rbs rdbg typeprof
      working-directory: ${{prefix}}/bin

    # bundle and bundler are “gem” shims that try to invoke rubygems magic
    # to figure out which bundler etc. to run. However this is not what we
    # need since we are a specifically packages rubygems version and only
    # want to use ourselves.
    # REF https://github.com/pkgxdev/pantry/issues/4010
    - run: |
        for tool in bundle bundler; do
          rm $tool
          cp $PROP $tool
        done
      prop: |
        #!/bin/sh
        d="$(cd "$(dirname "$0")"/.. && pwd)"
        export RUBYLIB="$d/lib"
        exec "$d"/gems/bundler-*/exe/bundle "$@"
      working-directory:
        ${{prefix}}/bin

    # ruby has a neat feature where it will look for a ruby shebang and
    # ignore everything from before that, so we can make scripts that execute
    # as POSIX shell and then re-exec themselves as ruby scripts
    - run:
        echo "$(cat $PROP gem)" > gem
      prop: |
        #!/bin/sh
        RUBYLIB="$(cd "$(dirname "$0")"/../lib && pwd)" exec ruby "$0" "$@"
      working-directory:
        ${{prefix}}/bin

    # clean up empty, unused directory
    - rmdir {{prefix}}/plugins

test:
  env:
    vRUBY: ${{deps.ruby-lang.org.version.marketing}}.0
  script:
    # for debug
    - gem env

    - |
      gem install awesome_print --verbose
      ruby -e 'require "rubygems"' -e 'require "awesome_print"' -e'ap $LOAD_PATH'

    - |
      gem install hexapdf  --verbose

      if [ -w /usr/local/lib/ruby/ ]; then
        v="$(/usr/local/bin/hexapdf version | cut -d' ' -f2)"
        test -d /usr/local/lib/ruby/gems/$vRUBY/gems/hexapdf-$v
      else
        v="$(~/.local/bin/hexapdf version | cut -d' ' -f2)"
        test -d ~/.gem/ruby/$vRUBY/gems/hexapdf-$v
      fi

    - run: |
        mv $FIXTURE Gemfile
        bundle install --path vendor/bundle
      fixture: |
        source 'https://rubygems.org'
        gem 'warbler', platforms: :jruby

provides:
  - bin/bundle
  - bin/bundler
  - bin/gem