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author | Douwe Maan <douwe@gitlab.com> | 2017-05-12 20:37:30 +0000 |
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committer | Douwe Maan <douwe@gitlab.com> | 2017-05-12 20:37:30 +0000 |
commit | e4261fe3ce0e6ba38db99323b9fb479c6a182d77 (patch) | |
tree | d555e87d9d28a34f35ed4974653e5e8cebac8c87 /app/services | |
parent | e5a967aa0380a618829e4371012da56de59bc739 (diff) | |
parent | ad2bfeb85756db8c4cea9290be743665efd1c918 (diff) | |
download | gitlab-ce-e4261fe3ce0e6ba38db99323b9fb479c6a182d77.tar.gz |
Merge branch 'fix-conflict-resolution-with-corrupt-repos' into 'master'
Fix conflict resolution from corrupted upstream
Closes gitlab-ee#2128
See merge request !11298
Diffstat (limited to 'app/services')
4 files changed, 99 insertions, 65 deletions
diff --git a/app/services/merge_requests/conflicts/base_service.rb b/app/services/merge_requests/conflicts/base_service.rb new file mode 100644 index 00000000000..b50875347d9 --- /dev/null +++ b/app/services/merge_requests/conflicts/base_service.rb @@ -0,0 +1,11 @@ +module MergeRequests + module Conflicts + class BaseService + attr_reader :merge_request + + def initialize(merge_request) + @merge_request = merge_request + end + end + end +end diff --git a/app/services/merge_requests/conflicts/list_service.rb b/app/services/merge_requests/conflicts/list_service.rb new file mode 100644 index 00000000000..9bf82518643 --- /dev/null +++ b/app/services/merge_requests/conflicts/list_service.rb @@ -0,0 +1,35 @@ +module MergeRequests + module Conflicts + class ListService < MergeRequests::Conflicts::BaseService + delegate :file_for_path, :to_json, to: :conflicts + + def can_be_resolved_by?(user) + return false unless merge_request.source_project + + access = ::Gitlab::UserAccess.new(user, project: merge_request.source_project) + access.can_push_to_branch?(merge_request.source_branch) + end + + def can_be_resolved_in_ui? + return @conflicts_can_be_resolved_in_ui if defined?(@conflicts_can_be_resolved_in_ui) + + return @conflicts_can_be_resolved_in_ui = false unless merge_request.cannot_be_merged? + return @conflicts_can_be_resolved_in_ui = false unless merge_request.has_complete_diff_refs? + + begin + # Try to parse each conflict. If the MR's mergeable status hasn't been + # updated, ensure that we don't say there are conflicts to resolve + # when there are no conflict files. + conflicts.files.each(&:lines) + @conflicts_can_be_resolved_in_ui = conflicts.files.length > 0 + rescue Rugged::OdbError, Gitlab::Conflict::Parser::UnresolvableError, Gitlab::Conflict::FileCollection::ConflictSideMissing + @conflicts_can_be_resolved_in_ui = false + end + end + + def conflicts + @conflicts ||= Gitlab::Conflict::FileCollection.read_only(merge_request) + end + end + end +end diff --git a/app/services/merge_requests/conflicts/resolve_service.rb b/app/services/merge_requests/conflicts/resolve_service.rb new file mode 100644 index 00000000000..d74a82effd6 --- /dev/null +++ b/app/services/merge_requests/conflicts/resolve_service.rb @@ -0,0 +1,53 @@ +module MergeRequests + module Conflicts + class ResolveService < MergeRequests::Conflicts::BaseService + MissingFiles = Class.new(Gitlab::Conflict::ResolutionError) + + def execute(current_user, params) + rugged = merge_request.source_project.repository.rugged + + Gitlab::Conflict::FileCollection.for_resolution(merge_request) do |conflicts_for_resolution| + merge_index = conflicts_for_resolution.merge_index + + params[:files].each do |file_params| + conflict_file = conflicts_for_resolution.file_for_path(file_params[:old_path], file_params[:new_path]) + + write_resolved_file_to_index(merge_index, rugged, conflict_file, file_params) + end + + unless merge_index.conflicts.empty? + missing_files = merge_index.conflicts.map { |file| file[:ours][:path] } + + raise MissingFiles, "Missing resolutions for the following files: #{missing_files.join(', ')}" + end + + commit_params = { + message: params[:commit_message] || conflicts_for_resolution.default_commit_message, + parents: [conflicts_for_resolution.our_commit, conflicts_for_resolution.their_commit].map(&:oid), + tree: merge_index.write_tree(rugged) + } + + conflicts_for_resolution. + project. + repository. + resolve_conflicts(current_user, merge_request.source_branch, commit_params) + end + end + + private + + def write_resolved_file_to_index(merge_index, rugged, file, params) + new_file = if params[:sections] + file.resolve_lines(params[:sections]).map(&:text).join("\n") + elsif params[:content] + file.resolve_content(params[:content]) + end + + our_path = file.our_path + + merge_index.add(path: our_path, oid: rugged.write(new_file, :blob), mode: file.our_mode) + merge_index.conflict_remove(our_path) + end + end + end +end diff --git a/app/services/merge_requests/resolve_service.rb b/app/services/merge_requests/resolve_service.rb deleted file mode 100644 index 82cd89d9a0b..00000000000 --- a/app/services/merge_requests/resolve_service.rb +++ /dev/null @@ -1,65 +0,0 @@ -module MergeRequests - class ResolveService < MergeRequests::BaseService - MissingFiles = Class.new(Gitlab::Conflict::ResolutionError) - - attr_accessor :conflicts, :rugged, :merge_index, :merge_request - - def execute(merge_request) - @conflicts = merge_request.conflicts - @rugged = project.repository.rugged - @merge_index = conflicts.merge_index - @merge_request = merge_request - - fetch_their_commit! - - params[:files].each do |file_params| - conflict_file = merge_request.conflicts.file_for_path(file_params[:old_path], file_params[:new_path]) - - write_resolved_file_to_index(conflict_file, file_params) - end - - unless merge_index.conflicts.empty? - missing_files = merge_index.conflicts.map { |file| file[:ours][:path] } - - raise MissingFiles, "Missing resolutions for the following files: #{missing_files.join(', ')}" - end - - commit_params = { - message: params[:commit_message] || conflicts.default_commit_message, - parents: [conflicts.our_commit, conflicts.their_commit].map(&:oid), - tree: merge_index.write_tree(rugged) - } - - project.repository.resolve_conflicts(current_user, merge_request.source_branch, commit_params) - end - - def write_resolved_file_to_index(file, params) - new_file = if params[:sections] - file.resolve_lines(params[:sections]).map(&:text).join("\n") - elsif params[:content] - file.resolve_content(params[:content]) - end - - our_path = file.our_path - - merge_index.add(path: our_path, oid: rugged.write(new_file, :blob), mode: file.our_mode) - merge_index.conflict_remove(our_path) - end - - # If their commit (in the target project) doesn't exist in the source project, it - # can't be a parent for the merge commit we're about to create. If that's the case, - # fetch the target branch ref into the source project so the commit exists in both. - # - def fetch_their_commit! - return if rugged.include?(conflicts.their_commit.oid) - - random_string = SecureRandom.hex - - project.repository.fetch_ref( - merge_request.target_project.repository.path_to_repo, - "refs/heads/#{merge_request.target_branch}", - "refs/tmp/#{random_string}/head" - ) - end - end -end |