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$—$—$—$—$—$—$—$—$—$—$—$—$— $—$—$—$—$—$—$—$—$—$—$—$—$— Double- Shipping Software For Profit

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@holman

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github github github github github github

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This talk

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This talk Competitors

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This talk Competitors Long-running Branches

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This talk Competitors Long-running Branches Curious Motherfuckers

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Why?

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Users

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$

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Why not?

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FIJRUBY OWN BRANCH INSTALLER SPECIAL FEATURES ONE DEVELOPER*

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B-B-B-BUT OUR SECRETS! THEY’RE SO SECRET!

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$ jrubyc secrets.rb

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$ jrubyc secrets.rb #=> secrets.class

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$ rbx compile secrets.rb

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$ rbx compile secrets.rb #=> secrets.rbc

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$ rbx compile secrets.rb #=> secrets.rbc $ rbx compile -h

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$ rbx compile secrets.rb #=> secrets.rbc $ rbx compile -h #=> whoa.

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MRI

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HAX MRI

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HAX MRI

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Sales.

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Support

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More humans More time More money

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Make them pay for it.

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Differences suck

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github.com GitHub FI fs1 fs2 fs3 fs4 ... local filesystem

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class Repository < ActiveRecord::Base def file_server if Rails.fi? “localhost” else Smoke.find_fs(self) end end def refs tag_names + branches end def exists_on_disk? if Rails.fi? File.exist?(fs_path) else Smoke.exists_on_disk?(self) end end def route owner.route end def delete if Rails.fi? File.rm_rf(fs_path) else Smoke.delete end end def to_s “lol this is a repository / #{id}” end def online? return true if Rails.fi? CHIMNEY.storage_server_online?(route) end end

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class Repository < ActiveRecord::Base def file_server if Rails.fi? “localhost” else Smoke.find_fs(self) end end def refs tag_names + branches end def exists_on_disk? if Rails.fi? File.exist?(fs_path) else Smoke.exists_on_disk?(self) end end def route owner.route end def delete if Rails.fi? File.rm_rf(fs_path) else Smoke.delete end end def to_s “lol this is a repository / #{id}” end def online? return true if Rails.fi? CHIMNEY.storage_server_online?(route) end end

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class Repository < ActiveRecord::Base def file_server if Rails.fi? “localhost” else Smoke.find_fs(self) end end def refs tag_names + branches end def exists_on_disk? if Rails.fi? File.exist?(fs_path) else Smoke.exists_on_disk?(self) end end def route owner.route end def delete if Rails.fi? File.rm_rf(fs_path) else Smoke.delete end end def to_s “lol this is a repository / #{id}” end def online? return true if Rails.fi? CHIMNEY.storage_server_online?(route) end end if Rails.fi? File.exist?(path) else Smoke.exist?(path) end

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module Smoke def exists? # handle logic for # both FI and .com end end

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if Rails.fi? File.exist?(path) else Smoke.exist?(path) end

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Smoke.exist?(path)

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Get high.

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Strategy Pattern

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GitHub::RepoCreator handles repository creation

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module GitHub RepoCreator = if Rails.fi? Fi::RepoCreator else Web::RepoCreator end end

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module GitHub module Web class RepoCreator # implementation, lol end end end

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module GitHub module Fi class RepoCreator < GitHub::Web::RepoCreator # implementation, lol end end end

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module GitHub module Fi class RepoCreator < GitHub::Web::RepoCreator def setup_smoke # no-op end end end end

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Provide a standardized API between products.

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creator = GitHub::RepoCreator.new creator.setup

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Feature flipping makes things less frightening.

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if current_user.beta? beta_hotness end

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if GitHub::Beta.enabled?(:svn) subversion_hotness end

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Mistakes

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Mistakes branches

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Mistakes branches documentation

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Mistakes branches documentation versioning

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Zach Holman, @holman http://zachholman.com/talks