Vendor the gitlab-git-test repo

.gitlab-ci.yml

@@ -550,3 +550,9 @@ cache gems:
   only:
     - master@gitlab-org/gitlab-ce
     - master@gitlab-org/gitlab-ee
+
+gitlab_git_test:
+  variables:
+    SETUP_DB: "false"
+  script:
+    - spec/support/prepare-gitlab-git-test-for-commit --check-for-changes

spec/support/generate-seed-repo-rb

@@ -15,7 +15,7 @@
 require 'erb'
 require 'tempfile'
 
-SOURCE = 'https://gitlab.com/gitlab-org/gitlab-git-test.git'.freeze
+SOURCE = File.expand_path('../gitlab-git-test.git', __FILE__).freeze
 SCRIPT_NAME = 'generate-seed-repo-rb'.freeze
 REPO_NAME = 'gitlab-git-test.git'.freeze
 

spec/support/gitlab-git-test.git/HEAD

@@ -0,0 +1 @@
+ref: refs/heads/master

spec/support/gitlab-git-test.git/README.md

@@ -0,0 +1,16 @@
+# Gitlab::Git test repository
+
+This repository is used by (some of) the tests in spec/lib/gitlab/git.
+
+Do not add new large files to this repository. Otherwise we needlessly
+inflate the size of the gitlab-ce repository.
+
+## How to make changes to this repository
+
+- (if needed) clone `https://gitlab.com/gitlab-org/gitlab-ce.git` to your local machine
+- clone `gitlab-ce/spec/support/gitlab-git-test.git` locally (i.e. clone from your hard drive, not from the internet)
+- make changes in your local clone of gitlab-git-test
+- run `git push` which will push to your local source `gitlab-ce/spec/support/gitlab-git-test.git`
+- in gitlab-ce: run `spec/support/prepare-gitlab-git-test-for-commit`
+- in gitlab-ce: `git add spec/support/seed_repo.rb spec/support/gitlab-git-test.git`
+- commit your changes in gitlab-ce

spec/support/gitlab-git-test.git/config

@@ -0,0 +1,7 @@
+[core]
+	repositoryformatversion = 0
+	filemode = true
+	bare = true
+	precomposeunicode = true
+[remote "origin"]
+	url = https://gitlab.com/gitlab-org/gitlab-git-test.git

spec/support/gitlab-git-test.git/packed-refs

@@ -0,0 +1,18 @@
+# pack-refs with: peeled fully-peeled 
+0b4bc9a49b562e85de7cc9e834518ea6828729b9 refs/heads/feature
+12d65c8dd2b2676fa3ac47d955accc085a37a9c1 refs/heads/fix
+6473c90867124755509e100d0d35ebdc85a0b6ae refs/heads/fix-blob-path
+58fa1a3af4de73ea83fe25a1ef1db8e0c56f67e5 refs/heads/fix-existing-submodule-dir
+40f4a7a617393735a95a0bb67b08385bc1e7c66d refs/heads/fix-mode
+9abd6a8c113a2dd76df3fdb3d58a8cec6db75f8d refs/heads/gitattributes
+46e1395e609395de004cacd4b142865ab0e52a29 refs/heads/gitattributes-updated
+4b4918a572fa86f9771e5ba40fbd48e1eb03e2c6 refs/heads/master
+5937ac0a7beb003549fc5fd26fc247adbce4a52e refs/heads/merge-test
+f4e6814c3e4e7a0de82a9e7cd20c626cc963a2f8 refs/tags/v1.0.0
+^6f6d7e7ed97bb5f0054f2b1df789b39ca89b6ff9
+8a2a6eb295bb170b34c24c76c49ed0e9b2eaf34b refs/tags/v1.1.0
+^5937ac0a7beb003549fc5fd26fc247adbce4a52e
+10d64eed7760f2811ee2d64b44f1f7d3b364f17b refs/tags/v1.2.0
+^eb49186cfa5c4338011f5f590fac11bd66c5c631
+2ac1f24e253e08135507d0830508febaaccf02ee refs/tags/v1.2.1
+^fa1b1e6c004a68b7d8763b86455da9e6b23e36d6

spec/support/prepare-gitlab-git-test-for-commit

@@ -0,0 +1,17 @@
+#!/usr/bin/env ruby
+
+abort unless [
+  system('spec/support/generate-seed-repo-rb', out: 'spec/support/seed_repo.rb'),
+  system('spec/support/unpack-gitlab-git-test')
+].all?
+
+exit if ARGV.first != '--check-for-changes'
+
+git_status = IO.popen(%w[git status --porcelain], &:read)
+abort unless $?.success?
+
+puts git_status
+
+if git_status.lines.grep(%r{^.. spec/support/gitlab-git-test.git}).any?
+  abort "error: detected changes in gitlab-git-test.git"
+end

spec/support/seed_helper.rb

@@ -9,7 +9,7 @@ TEST_MUTABLE_REPO_PATH = 'mutable-repo.git'.freeze
 TEST_BROKEN_REPO_PATH  = 'broken-repo.git'.freeze
 
 module SeedHelper
-  GITLAB_GIT_TEST_REPO_URL = ENV.fetch('GITLAB_GIT_TEST_REPO_URL', 'https://gitlab.com/gitlab-org/gitlab-git-test.git').freeze
+  GITLAB_GIT_TEST_REPO_URL = File.expand_path('../gitlab-git-test.git', __FILE__).freeze
 
   def ensure_seeds
     if File.exist?(SEED_STORAGE_PATH)

spec/support/unpack-gitlab-git-test

@@ -0,0 +1,38 @@
+#!/usr/bin/env ruby
+require 'fileutils'
+
+REPO = 'spec/support/gitlab-git-test.git'.freeze
+PACK_DIR = REPO + '/objects/pack'
+GIT = %W[git --git-dir=#{REPO}].freeze
+BASE_PACK = 'pack-691247af2a6acb0b63b73ac0cb90540e93614043'.freeze
+
+def main
+  unpack
+  # We want to store the refs in a packed-refs file because if we don't
+  # they can get mangled by filesystems.
+  abort unless system(*GIT, *%w[pack-refs --all])
+  abort unless system(*GIT, 'fsck')
+end
+
+# We don't want contributors to commit new pack files because those
+# create unnecessary churn.
+def unpack
+  pack_files = Dir[File.join(PACK_DIR, '*')].reject do |pack|
+    pack.start_with?(File.join(PACK_DIR, BASE_PACK))
+  end
+  return if pack_files.empty?
+
+  pack_files.each do |pack|
+    unless pack.end_with?('.pack')
+      FileUtils.rm(pack)
+      next
+    end
+
+    File.open(pack, 'rb') do |open_pack|
+      File.unlink(pack)
+      abort unless system(*GIT, 'unpack-objects', in: open_pack)
+    end
+  end
+end
+
+main