Golang BuildState.AddPendingBuild方法代码示例

func Build(tid int, state *core.BuildState, label core.BuildLabel) {
	start := time.Now()
	target := state.Graph.TargetOrDie(label)
	target.SetState(core.Building)
	if err := buildTarget(tid, state, target); err != nil {
		if err == stopTarget {
			target.SetState(core.Stopped)
			state.LogBuildResult(tid, target.Label, core.TargetBuildStopped, "Build stopped")
			return
		}
		state.LogBuildError(tid, label, core.TargetBuildFailed, err, "Build failed: %s", err)
		if err := RemoveOutputs(target); err != nil {
			log.Errorf("Failed to remove outputs for %s: %s", target.Label, err)
		}
		target.SetState(core.Failed)
		return
	}
	metrics.Record(target, time.Since(start))

	// Add any of the reverse deps that are now fully built to the queue.
	for _, reverseDep := range state.Graph.ReverseDependencies(target) {
		if reverseDep.State() == core.Active && state.Graph.AllDepsBuilt(reverseDep) && reverseDep.SyncUpdateState(core.Active, core.Pending) {
			state.AddPendingBuild(reverseDep.Label, false)
		}
	}
	if target.IsTest && state.NeedTests {
		state.AddPendingTest(target.Label)
	}
	parse.UndeferAnyParses(state, target)
}

func addTarget(state *core.BuildState, i int) *core.BuildTarget {
	// Create and add a new target, with a parent and a dependency.
	target := core.NewBuildTarget(label(i))
	target.Command = "__FILEGROUP__" // Will mean it doesn't have to shell out to anything.
	target.SetState(core.Active)
	state.Graph.AddTarget(target)
	if i <= size {
		if i > 10 {
			target.Flakiness = i // Stash this here, will be useful later.
			target.PostBuildFunction = reflect.ValueOf(&postBuildFunc).Pointer()
		}
		if i < size/10 {
			for j := 0; j < 10; j++ {
				dep := label(i*10 + j)
				log.Info("Adding dependency %s -> %s", target.Label, dep)
				target.AddDependency(dep)
				state.Graph.AddDependency(target.Label, dep)
			}
		} else {
			// These are buildable now
			state.AddPendingBuild(target.Label, false)
		}
	}
	state.AddActiveTarget()
	return target
}

// Adds a single target to the build queue.
func addDep(state *core.BuildState, label, dependor core.BuildLabel, rescan, forceBuild bool) {
	// Stop at any package that's not loaded yet
	if state.Graph.Package(label.PackageName) == nil {
		state.AddPendingParse(label, dependor, false)
		return
	}
	target := state.Graph.Target(label)
	if target == nil {
		log.Fatalf("Target %s (referenced by %s) doesn't exist\n", label, dependor)
	}
	if target.State() >= core.Active && !rescan && !forceBuild {
		return // Target is already tagged to be built and likely on the queue.
	}
	// Only do this bit if we actually need to build the target
	if !target.SyncUpdateState(core.Inactive, core.Semiactive) && !rescan && !forceBuild {
		return
	}
	if state.NeedBuild || forceBuild {
		if target.SyncUpdateState(core.Semiactive, core.Active) {
			state.AddActiveTarget()
			if target.IsTest && state.NeedTests {
				state.AddActiveTarget() // Tests count twice if we're gonna run them.
			}
		}
	}
	// If this target has no deps, add it to the queue now, otherwise handle its deps.
	// Only add if we need to build targets (not if we're just parsing) but we might need it to parse...
	if target.State() == core.Active && state.Graph.AllDepsBuilt(target) {
		if target.SyncUpdateState(core.Active, core.Pending) {
			state.AddPendingBuild(label, dependor.IsAllTargets())
		}
		if !rescan {
			return
		}
	}
	for _, dep := range target.DeclaredDependencies() {
		// Check the require/provide stuff; we may need to add a different target.
		if len(target.Requires) > 0 {
			if depTarget := state.Graph.Target(dep); depTarget != nil && len(depTarget.Provides) > 0 {
				for _, provided := range depTarget.ProvideFor(target) {
					addDep(state, provided, label, false, forceBuild)
				}
				continue
			}
		}
		addDep(state, dep, label, false, forceBuild)
	}
}