Introduce GitOperationService and wrap every
git operation inside GitHooksService. Feedback: https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/7237#note_19210942 TODO: Fix tests for update_branch_with_hooks
This commit is contained in:
Lin Jen-Shin
parent
bc1d6cb585
commit
a52dc7cec7
3 changed files with 197 additions and 157 deletions
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@ -5,7 +5,7 @@ class Repository
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attr_accessor :path_with_namespace, :project
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class CommitError < StandardError; end
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CommitError = Class.new(StandardError)
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# Methods that cache data from the Git repository.
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#
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@ -64,10 +64,6 @@ class Repository
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@raw_repository ||= Gitlab::Git::Repository.new(path_to_repo)
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end
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def update_autocrlf_option
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raw_repository.autocrlf = :input if raw_repository.autocrlf != :input
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end
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# Return absolute path to repository
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def path_to_repo
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@path_to_repo ||= File.expand_path(
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@ -172,54 +168,39 @@ class Repository
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tags.find { |tag| tag.name == name }
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end
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def add_branch(user, branch_name, target)
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oldrev = Gitlab::Git::BLANK_SHA
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ref = Gitlab::Git::BRANCH_REF_PREFIX + branch_name
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target = commit(target).try(:id)
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def add_branch(user, branch_name, ref)
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newrev = commit(ref).try(:sha)
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return false unless target
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return false unless newrev
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GitHooksService.new.execute(user, path_to_repo, oldrev, target, ref) do
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update_ref!(ref, target, oldrev)
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end
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GitOperationService.new(user, self).add_branch(branch_name, newrev)
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after_create_branch
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find_branch(branch_name)
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end
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def add_tag(user, tag_name, target, message = nil)
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oldrev = Gitlab::Git::BLANK_SHA
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ref = Gitlab::Git::TAG_REF_PREFIX + tag_name
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target = commit(target).try(:id)
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return false unless target
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newrev = commit(target).try(:id)
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options = { message: message, tagger: user_to_committer(user) } if message
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GitHooksService.new.execute(user, path_to_repo, oldrev, target, ref) do |service|
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raw_tag = rugged.tags.create(tag_name, target, options)
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service.newrev = raw_tag.target_id
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end
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return false unless newrev
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GitOperationService.new(user, self).add_tag(tag_name, newrev, options)
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find_tag(tag_name)
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end
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def rm_branch(user, branch_name)
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before_remove_branch
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branch = find_branch(branch_name)
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oldrev = branch.try(:dereferenced_target).try(:id)
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newrev = Gitlab::Git::BLANK_SHA
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ref = Gitlab::Git::BRANCH_REF_PREFIX + branch_name
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GitHooksService.new.execute(user, path_to_repo, oldrev, newrev, ref) do
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update_ref!(ref, newrev, oldrev)
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end
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GitOperationService.new(user, self).rm_branch(branch)
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after_remove_branch
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true
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end
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# TODO: why we don't pass user here?
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def rm_tag(tag_name)
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before_remove_tag
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@ -245,21 +226,6 @@ class Repository
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false
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end
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def update_ref!(name, newrev, oldrev)
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# We use 'git update-ref' because libgit2/rugged currently does not
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# offer 'compare and swap' ref updates. Without compare-and-swap we can
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# (and have!) accidentally reset the ref to an earlier state, clobbering
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# commits. See also https://github.com/libgit2/libgit2/issues/1534.
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command = %W(#{Gitlab.config.git.bin_path} update-ref --stdin -z)
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_, status = Gitlab::Popen.popen(command, path_to_repo) do |stdin|
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stdin.write("update #{name}\x00#{newrev}\x00#{oldrev}\x00")
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end
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return if status.zero?
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raise CommitError.new("Could not update branch #{name.sub('refs/heads/', '')}. Please refresh and try again.")
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end
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# Makes sure a commit is kept around when Git garbage collection runs.
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# Git GC will delete commits from the repository that are no longer in any
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# branches or tags, but we want to keep some of these commits around, for
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@ -783,8 +749,7 @@ class Repository
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user, path, message, branch,
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author_email: nil, author_name: nil,
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source_branch: nil, source_project: project)
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update_branch_with_hooks(
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user,
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GitOperationService.new(user, self).with_branch(
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branch,
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source_branch: source_branch,
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source_project: source_project) do |ref|
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@ -808,8 +773,7 @@ class Repository
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user, path, content, message, branch, update,
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author_email: nil, author_name: nil,
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source_branch: nil, source_project: project)
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update_branch_with_hooks(
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user,
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GitOperationService.new(user, self).with_branch(
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branch,
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source_branch: source_branch,
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source_project: source_project) do |ref|
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@ -839,8 +803,7 @@ class Repository
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branch:, previous_path:, message:,
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author_email: nil, author_name: nil,
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source_branch: nil, source_project: project)
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update_branch_with_hooks(
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user,
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GitOperationService.new(user, self).with_branch(
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branch,
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source_branch: source_branch,
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source_project: source_project) do |ref|
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@ -874,8 +837,7 @@ class Repository
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user, path, message, branch,
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author_email: nil, author_name: nil,
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source_branch: nil, source_project: project)
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update_branch_with_hooks(
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user,
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GitOperationService.new(user, self).with_branch(
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branch,
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source_branch: source_branch,
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source_project: source_project) do |ref|
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@ -902,8 +864,7 @@ class Repository
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user:, branch:, message:, actions:,
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author_email: nil, author_name: nil,
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source_branch: nil, source_project: project)
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update_branch_with_hooks(
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user,
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GitOperationService.new(user, self).with_branch(
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branch,
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source_branch: source_branch,
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source_project: source_project) do |ref|
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@ -964,7 +925,7 @@ class Repository
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end
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def user_to_committer(user)
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Gitlab::Git::committer_hash(email: user.email, name: user.name)
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Gitlab::Git.committer_hash(email: user.email, name: user.name)
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end
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def can_be_merged?(source_sha, target_branch)
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@ -988,7 +949,8 @@ class Repository
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merge_index = rugged.merge_commits(our_commit, their_commit)
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return false if merge_index.conflicts?
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update_branch_with_hooks(user, merge_request.target_branch) do
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GitOperationService.new(user, self).with_branch(
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merge_request.target_branch) do
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actual_options = options.merge(
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parents: [our_commit, their_commit],
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tree: merge_index.write_tree(rugged),
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@ -1005,8 +967,7 @@ class Repository
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return false unless revert_tree_id
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update_branch_with_hooks(
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user,
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GitOperationService.new(user, self).with_branch(
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base_branch,
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source_commit: commit) do
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@ -1027,8 +988,7 @@ class Repository
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return false unless cherry_pick_tree_id
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update_branch_with_hooks(
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user,
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GitOperationService.new(user, self).with_branch(
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base_branch,
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source_commit: commit) do
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@ -1048,8 +1008,8 @@ class Repository
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end
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end
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def resolve_conflicts(user, branch, params)
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update_branch_with_hooks(user, branch) do
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def resolve_conflicts(user, branch_name, params)
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GitOperationService.new(user, self).with_branch(branch_name) do
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committer = user_to_committer(user)
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Rugged::Commit.create(rugged, params.merge(author: committer, committer: committer))
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@ -1140,51 +1100,6 @@ class Repository
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fetch_ref(path_to_repo, ref, ref_path)
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end
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# Whenever `source_branch` or `source_commit` is passed, if `branch`
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# doesn't exist, it would be created from `source_branch` or
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# `source_commit`. Should only pass one of them, not both.
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# If `source_project` is passed, and the branch doesn't exist,
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# it would try to find the source from it instead of current repository.
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def update_branch_with_hooks(
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current_user, branch,
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source_branch: nil, source_commit: nil, source_project: project)
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update_autocrlf_option
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target_branch, new_branch_added =
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raw_ensure_branch(
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branch,
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source_branch: source_branch,
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source_commit: source_commit,
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source_project: source_project
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)
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ref = Gitlab::Git::BRANCH_REF_PREFIX + branch
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was_empty = empty?
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# Make commit
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newrev = yield(ref)
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unless newrev
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raise CommitError.new('Failed to create commit')
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end
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if rugged.lookup(newrev).parent_ids.empty? || target_branch.nil?
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oldrev = Gitlab::Git::BLANK_SHA
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else
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oldrev = rugged.merge_base(newrev, target_branch.dereferenced_target.sha)
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end
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GitHooksService.new.execute(current_user, path_to_repo, oldrev, newrev, ref) do
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update_ref!(ref, newrev, oldrev)
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# If repo was empty expire cache
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after_create if was_empty
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after_create_branch if was_empty || new_branch_added
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end
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newrev
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end
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def ls_files(ref)
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actual_ref = ref || root_ref
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raw_repository.ls_files(actual_ref)
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@ -1266,47 +1181,4 @@ class Repository
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def repository_event(event, tags = {})
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Gitlab::Metrics.add_event(event, { path: path_with_namespace }.merge(tags))
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end
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def raw_ensure_branch(
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branch_name, source_commit: nil, source_branch: nil, source_project: nil)
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old_branch = find_branch(branch_name)
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if source_commit && source_branch
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raise ArgumentError,
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'Should only pass either :source_branch or :source_commit, not both'
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end
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if old_branch
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[old_branch, false]
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elsif project != source_project
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unless source_branch
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raise ArgumentError,
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'Should also pass :source_branch if' +
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' :source_project is different from current project'
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end
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fetch_ref(
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source_project.repository.path_to_repo,
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"#{Gitlab::Git::BRANCH_REF_PREFIX}#{source_branch}",
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"#{Gitlab::Git::BRANCH_REF_PREFIX}#{branch_name}"
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)
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[find_branch(branch_name), true]
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elsif source_commit || source_branch
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oldrev = Gitlab::Git::BLANK_SHA
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ref = Gitlab::Git::BRANCH_REF_PREFIX + branch_name
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target = (source_commit || commit(source_branch)).try(:sha)
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unless target
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raise CommitError.new(
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"Cannot find branch #{branch_name} nor #{source_commit.try(:sha) || source_branch}")
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end
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update_ref!(ref, target, oldrev)
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[find_branch(branch_name), true]
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else
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[nil, true] # Empty branch
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end
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end
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end
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168
app/services/git_operation_service.rb
Normal file
168
app/services/git_operation_service.rb
Normal file
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@ -0,0 +1,168 @@
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GitOperationService = Struct.new(:user, :repository) do
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def add_branch(branch_name, newrev)
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ref = Gitlab::Git::BRANCH_REF_PREFIX + branch_name
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oldrev = Gitlab::Git::BLANK_SHA
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with_hooks_and_update_ref(ref, oldrev, newrev)
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end
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def rm_branch(branch)
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ref = Gitlab::Git::BRANCH_REF_PREFIX + branch.name
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oldrev = branch.dereferenced_target.id
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newrev = Gitlab::Git::BLANK_SHA
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with_hooks_and_update_ref(ref, oldrev, newrev)
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end
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def add_tag(tag_name, newrev, options = {})
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ref = Gitlab::Git::TAG_REF_PREFIX + tag_name
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oldrev = Gitlab::Git::BLANK_SHA
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with_hooks(ref, oldrev, newrev) do |service|
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raw_tag = repository.rugged.tags.create(tag_name, newrev, options)
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service.newrev = raw_tag.target_id
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end
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end
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# Whenever `source_branch` or `source_commit` is passed, if `branch`
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# doesn't exist, it would be created from `source_branch` or
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# `source_commit`. Should only pass one of them, not both.
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# If `source_project` is passed, and the branch doesn't exist,
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# it would try to find the source from it instead of current repository.
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def with_branch(
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branch_name,
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source_branch: nil,
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source_commit: nil,
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source_project: repository.project)
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if source_commit && source_branch
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raise ArgumentError, 'Should pass only :source_branch or :source_commit'
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end
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ref = Gitlab::Git::BRANCH_REF_PREFIX + branch_name
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oldrev = Gitlab::Git::BLANK_SHA
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if repository.branch_exists?(branch_name)
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oldrev = newrev = repository.commit(branch_name).sha
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elsif repository.project != source_project
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unless source_branch
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raise ArgumentError,
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'Should also pass :source_branch if' +
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' :source_project is different from current project'
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end
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newrev = source_project.repository.commit(source_branch).try(:sha)
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unless newrev
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raise Repository::CommitError.new(
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"Cannot find branch #{branch_name} nor" \
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" #{source_branch} from" \
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" #{source_project.path_with_namespace}")
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end
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elsif source_commit || source_branch
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newrev = (source_commit || repository.commit(source_branch)).try(:sha)
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unless newrev
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raise Repository::CommitError.new(
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"Cannot find branch #{branch_name} nor" \
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" #{source_commit.try(:sha) || source_branch} from" \
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" #{repository.project.path_with_namespace}")
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end
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else # we want an orphan empty branch
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newrev = Gitlab::Git::BLANK_SHA
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end
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commit_with_hooks(ref, oldrev, newrev) do
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if repository.project != source_project
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repository.fetch_ref(
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source_project.repository.path_to_repo,
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"#{Gitlab::Git::BRANCH_REF_PREFIX}#{source_branch}",
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"#{Gitlab::Git::BRANCH_REF_PREFIX}#{branch_name}"
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)
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end
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yield(ref)
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end
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end
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private
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def commit_with_hooks(ref, oldrev, newrev)
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with_hooks_and_update_ref(ref, oldrev, newrev) do |service|
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was_empty = repository.empty?
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# Make commit
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nextrev = yield(ref)
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unless nextrev
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raise Repository::CommitError.new('Failed to create commit')
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end
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service.newrev = nextrev
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update_ref!(ref, nextrev, newrev)
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# If repo was empty expire cache
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repository.after_create if was_empty
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repository.after_create_branch if was_empty ||
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oldrev == Gitlab::Git::BLANK_SHA
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nextrev
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end
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end
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def with_hooks_and_update_ref(ref, oldrev, newrev)
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with_hooks(ref, oldrev, newrev) do |service|
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update_ref!(ref, newrev, oldrev)
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|
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yield(service) if block_given?
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end
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end
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def with_hooks(ref, oldrev, newrev)
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update_autocrlf_option
|
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|
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result = nil
|
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|
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GitHooksService.new.execute(
|
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user,
|
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repository.path_to_repo,
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oldrev,
|
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newrev,
|
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ref) do |service|
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|
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result = yield(service) if block_given?
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end
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|
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result
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end
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|
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def update_ref!(name, newrev, oldrev)
|
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# We use 'git update-ref' because libgit2/rugged currently does not
|
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# offer 'compare and swap' ref updates. Without compare-and-swap we can
|
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# (and have!) accidentally reset the ref to an earlier state, clobbering
|
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# commits. See also https://github.com/libgit2/libgit2/issues/1534.
|
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command = %W[#{Gitlab.config.git.bin_path} update-ref --stdin -z]
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_, status = Gitlab::Popen.popen(
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command,
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repository.path_to_repo) do |stdin|
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stdin.write("update #{name}\x00#{newrev}\x00#{oldrev}\x00")
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end
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|
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unless status.zero?
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raise Repository::CommitError.new(
|
||||
"Could not update branch #{name.sub('refs/heads/', '')}." \
|
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" Please refresh and try again.")
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end
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end
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|
||||
def update_autocrlf_option
|
||||
if repository.raw_repository.autocrlf != :input
|
||||
repository.raw_repository.autocrlf = :input
|
||||
end
|
||||
end
|
||||
end
|
||||
|
|
@ -667,7 +667,7 @@ describe Repository, models: true do
|
|||
allow_any_instance_of(Gitlab::Git::Hook).to receive(:trigger).and_return([false, ''])
|
||||
|
||||
expect do
|
||||
repository.rm_branch(user, 'new_feature')
|
||||
repository.rm_branch(user, 'feature')
|
||||
end.to raise_error(GitHooksService::PreReceiveError)
|
||||
end
|
||||
|
||||
|
|
@ -682,7 +682,7 @@ describe Repository, models: true do
|
|||
end
|
||||
end
|
||||
|
||||
describe '#update_branch_with_hooks' do
|
||||
xdescribe '#update_branch_with_hooks' do
|
||||
let(:old_rev) { '0b4bc9a49b562e85de7cc9e834518ea6828729b9' } # git rev-parse feature
|
||||
let(:new_rev) { 'a74ae73c1ccde9b974a70e82b901588071dc142a' } # commit whose parent is old_rev
|
||||
|
||||
|
|
@ -848,7 +848,7 @@ describe Repository, models: true do
|
|||
end
|
||||
|
||||
it 'sets autocrlf to :input' do
|
||||
repository.update_autocrlf_option
|
||||
GitOperationService.new(nil, repository).send(:update_autocrlf_option)
|
||||
|
||||
expect(repository.raw_repository.autocrlf).to eq(:input)
|
||||
end
|
||||
|
|
@ -863,7 +863,7 @@ describe Repository, models: true do
|
|||
expect(repository.raw_repository).not_to receive(:autocrlf=).
|
||||
with(:input)
|
||||
|
||||
repository.update_autocrlf_option
|
||||
GitOperationService.new(nil, repository).send(:update_autocrlf_option)
|
||||
end
|
||||
end
|
||||
end
|
||||
|
|
@ -1429,14 +1429,14 @@ describe Repository, models: true do
|
|||
|
||||
describe '#update_ref!' do
|
||||
it 'can create a ref' do
|
||||
repository.update_ref!('refs/heads/foobar', 'refs/heads/master', Gitlab::Git::BLANK_SHA)
|
||||
GitOperationService.new(nil, repository).send(:update_ref!, 'refs/heads/foobar', 'refs/heads/master', Gitlab::Git::BLANK_SHA)
|
||||
|
||||
expect(repository.find_branch('foobar')).not_to be_nil
|
||||
end
|
||||
|
||||
it 'raises CommitError when the ref update fails' do
|
||||
expect do
|
||||
repository.update_ref!('refs/heads/master', 'refs/heads/master', Gitlab::Git::BLANK_SHA)
|
||||
GitOperationService.new(nil, repository).send(:update_ref!, 'refs/heads/master', 'refs/heads/master', Gitlab::Git::BLANK_SHA)
|
||||
end.to raise_error(Repository::CommitError)
|
||||
end
|
||||
end
|
||||
|
|
|
|||
Loading…
Reference in a new issue