Merge branch 'mimemagic_shim' into 'master'

Create a fake mimemagic gem in the vendors folder [RUN ALL RSPEC] [RUN AS-IF-FOSS]

See merge request gitlab-org/gitlab!57443

Gemfile

@@ -276,6 +276,9 @@ gem 'charlock_holmes', '~> 0.7.7'
 # Detect mime content type from content
 gem 'ruby-magic', '~> 0.3'
 
+# Fake version of the gem to trick bundler
+gem 'mimemagic', '0.3.7', path: 'vendor/shims/mimemagic', require: false
+
 # Faster blank
 gem 'fast_blank'
 

Gemfile.lock

+PATH
+  remote: vendor/shims/mimemagic
+  specs:
+    mimemagic (0.3.7)
+
 GEM
   remote: https://rubygems.org/
   specs:
@@ -728,7 +733,6 @@ GEM
     mime-types (3.3.1)
       mime-types-data (~> 3.2015)
     mime-types-data (3.2020.0512)
-    mimemagic (0.3.5)
     mini_histogram (0.3.1)
     mini_magick (4.10.1)
     mini_mime (1.0.2)
@@ -1482,6 +1486,7 @@ DEPENDENCIES
   marginalia (~> 1.10.0)
   memory_profiler (~> 0.9)
   method_source (~> 1.0)
+  mimemagic (= 0.3.7)!
   mini_magick (~> 4.10.1)
   minitest (~> 5.11.0)
   multi_json (~> 1.14.1)

changelogs/unreleased/mimemagic_shim.yml

+---
+title: Switch to using a fake mimemagic gem
+merge_request: 57443
+author:
+type: other

vendor/shims/mimemagic/Gemfile

+source "https://rubygems.org"
+
+# Specify your gem's dependencies in mimemagic.gemspec
+gemspec
+
+gem "rake", "~> 12.0"

vendor/shims/mimemagic/LICENSE.txt

+The MIT License (MIT)
+
+Copyright (c) 2021 GitLab B.V.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.

vendor/shims/mimemagic/README.md

+This is a fake gem to prevent mimemagic from being included into GitLab.

vendor/shims/mimemagic/Rakefile

+require "bundler/gem_tasks"
+task :default => :spec

vendor/shims/mimemagic/lib/mimemagic.rb

+require "mimemagic/version"
+
+module MimeMagic
+  class Error < StandardError; end
+  raise Error, 'This gem should never be required'
+end

vendor/shims/mimemagic/lib/mimemagic/version.rb

+module MimeMagic
+  VERSION = "0.3.7"
+end

vendor/shims/mimemagic/mimemagic.gemspec

+require_relative 'lib/mimemagic/version'
+
+Gem::Specification.new do |spec|
+  spec.name          = "mimemagic"
+  spec.version       = MimeMagic::VERSION
+  spec.authors       = ["Marc Shaw"]
+  spec.email         = ["mshaw@gitlab.com"]
+
+  spec.summary       = %q{MimeMagic shim}
+  spec.description   = %q{A shim for mimemagic}
+  spec.homepage      = "https://gitlab.com/gitlab-org/gitlab/-/tree/master/vendor/shims/mimemagic"
+  spec.license       = "MIT"
+  spec.required_ruby_version = Gem::Requirement.new(">= 2.3.0")
+
+  # Specify which files should be added to the gem when it is released.
+  # The `git ls-files -z` loads the files in the RubyGem that have been added into git.
+  spec.files         = Dir.chdir(File.expand_path('..', __FILE__)) do
+    `git ls-files -z`.split("\x0").reject { |f| f.match(%r{^(test|spec|features)/}) }
+  end
+  spec.require_paths = ["lib"]
+end