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module Files
class BaseService < ::BaseService
class ValidationError < StandardError; end
def execute
@source_project = params[:source_project] || @project
@source_branch = params[:source_branch]
@target_branch = params[:target_branch]
@commit_message = params[:commit_message]
@file_path = params[:file_path]
@previous_path = params[:previous_path]
@file_content = if params[:file_content_encoding] == 'base64'
Base64.decode64(params[:file_content])
else
params[:file_content]
end
@last_commit_sha = params[:last_commit_sha]
@author_email = params[:author_email]
@author_name = params[:author_name]
# Validate parameters
validate
# Create new branch if it different from source_branch
if different_branch?
create_target_branch
end
result = commit
if result
success(result: result)
else
error('Something went wrong. Your changes were not committed')
end
rescue Repository::CommitError, Gitlab::Git::Repository::InvalidBlobName, GitHooksService::PreReceiveError, ValidationError => ex
error(ex.message)
end
private
def different_branch?
@source_branch != @target_branch || @source_project != @project
end
def file_has_changed?
return false unless @last_commit_sha && last_commit
@last_commit_sha != last_commit.sha
end
def raise_error(message)
raise ValidationError.new(message)
end
def validate
allowed = ::Gitlab::UserAccess.new(current_user, project: project).can_push_to_branch?(@target_branch)
unless allowed
raise_error("You are not allowed to push into this branch")
end
unless project.empty_repo?
unless @source_project.repository.branch_names.include?(@source_branch)
raise_error('You can only create or edit files when you are on a branch')
end
if different_branch?
if repository.branch_names.include?(@target_branch)
raise_error('Branch with such name already exists. You need to switch to this branch in order to make changes')
end
end
end
end
def create_target_branch
result = CreateBranchService.new(project, current_user).execute(@target_branch, @source_branch, source_project: @source_project)
unless result[:status] == :success
raise_error("Something went wrong when we tried to create #{@target_branch} for you: #{result[:message]}")
end
end
end
end
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