diff options
Diffstat (limited to 'lib/gitlab/ci/yaml_processor.rb')
-rw-r--r-- | lib/gitlab/ci/yaml_processor.rb | 189 |
1 files changed, 189 insertions, 0 deletions
diff --git a/lib/gitlab/ci/yaml_processor.rb b/lib/gitlab/ci/yaml_processor.rb new file mode 100644 index 00000000000..a7285ac8f9d --- /dev/null +++ b/lib/gitlab/ci/yaml_processor.rb @@ -0,0 +1,189 @@ +module Gitlab + module Ci + class YamlProcessor + ValidationError = Class.new(StandardError) + + include Gitlab::Ci::Config::Entry::LegacyValidationHelpers + + attr_reader :cache, :stages, :jobs + + def initialize(config) + @ci_config = Gitlab::Ci::Config.new(config) + @config = @ci_config.to_hash + + unless @ci_config.valid? + raise ValidationError, @ci_config.errors.first + end + + initial_parsing + rescue Gitlab::Ci::Config::Loader::FormatError => e + raise ValidationError, e.message + end + + def builds + @jobs.map do |name, _| + build_attributes(name) + end + end + + def build_attributes(name) + job = @jobs[name.to_sym] || {} + + { stage_idx: @stages.index(job[:stage]), + stage: job[:stage], + commands: job[:commands], + tag_list: job[:tags] || [], + name: job[:name].to_s, + allow_failure: job[:ignore], + when: job[:when] || 'on_success', + environment: job[:environment_name], + coverage_regex: job[:coverage], + yaml_variables: yaml_variables(name), + options: { + image: job[:image], + services: job[:services], + artifacts: job[:artifacts], + cache: job[:cache], + dependencies: job[:dependencies], + before_script: job[:before_script], + script: job[:script], + after_script: job[:after_script], + environment: job[:environment], + retry: job[:retry] + }.compact } + end + + def pipeline_stage_builds(stage, pipeline) + selected_jobs = @jobs.select do |_, job| + next unless job[:stage] == stage + + only_specs = Gitlab::Ci::Build::Policy + .fabricate(job.fetch(:only, {})) + except_specs = Gitlab::Ci::Build::Policy + .fabricate(job.fetch(:except, {})) + + only_specs.all? { |spec| spec.satisfied_by?(pipeline) } && + except_specs.none? { |spec| spec.satisfied_by?(pipeline) } + end + + selected_jobs.map { |_, job| build_attributes(job[:name]) } + end + + def stage_seeds(pipeline) + seeds = @stages.uniq.map do |stage| + builds = pipeline_stage_builds(stage, pipeline) + + Gitlab::Ci::Stage::Seed.new(pipeline, stage, builds) if builds.any? + end + + seeds.compact + end + + def self.validation_message(content) + return 'Please provide content of .gitlab-ci.yml' if content.blank? + + begin + Gitlab::Ci::YamlProcessor.new(content) + nil + rescue ValidationError => e + e.message + end + end + + private + + def initial_parsing + ## + # Global config + # + @before_script = @ci_config.before_script + @image = @ci_config.image + @after_script = @ci_config.after_script + @services = @ci_config.services + @variables = @ci_config.variables + @stages = @ci_config.stages + @cache = @ci_config.cache + + ## + # Jobs + # + @jobs = @ci_config.jobs + + @jobs.each do |name, job| + # logical validation for job + + validate_job_stage!(name, job) + validate_job_dependencies!(name, job) + validate_job_environment!(name, job) + end + end + + def yaml_variables(name) + variables = (@variables || {}) + .merge(job_variables(name)) + + variables.map do |key, value| + { key: key.to_s, value: value, public: true } + end + end + + def job_variables(name) + job = @jobs[name.to_sym] + return {} unless job + + job[:variables] || {} + end + + def validate_job_stage!(name, job) + return unless job[:stage] + + unless job[:stage].is_a?(String) && job[:stage].in?(@stages) + raise ValidationError, "#{name} job: stage parameter should be #{@stages.join(", ")}" + end + end + + def validate_job_dependencies!(name, job) + return unless job[:dependencies] + + stage_index = @stages.index(job[:stage]) + + job[:dependencies].each do |dependency| + raise ValidationError, "#{name} job: undefined dependency: #{dependency}" unless @jobs[dependency.to_sym] + + unless @stages.index(@jobs[dependency.to_sym][:stage]) < stage_index + raise ValidationError, "#{name} job: dependency #{dependency} is not defined in prior stages" + end + end + end + + def validate_job_environment!(name, job) + return unless job[:environment] + return unless job[:environment].is_a?(Hash) + + environment = job[:environment] + validate_on_stop_job!(name, environment, environment[:on_stop]) + end + + def validate_on_stop_job!(name, environment, on_stop) + return unless on_stop + + on_stop_job = @jobs[on_stop.to_sym] + unless on_stop_job + raise ValidationError, "#{name} job: on_stop job #{on_stop} is not defined" + end + + unless on_stop_job[:environment] + raise ValidationError, "#{name} job: on_stop job #{on_stop} does not have environment defined" + end + + unless on_stop_job[:environment][:name] == environment[:name] + raise ValidationError, "#{name} job: on_stop job #{on_stop} have different environment name" + end + + unless on_stop_job[:environment][:action] == 'stop' + raise ValidationError, "#{name} job: on_stop job #{on_stop} needs to have action stop defined" + end + end + end + end +end |