Beispiel #1
0
func findBuildInputs(g osgraph.Graph, n graph.Node, covered osgraph.NodeSet) (base ImageTagLocation, source SourceLocation, err error) {
	// find inputs to the build
	for _, input := range g.Neighbors(n) {
		switch g.EdgeKind(g.EdgeBetween(n, input)) {
		case buildedges.BuildInputEdgeKind:
			if source != nil {
				// report this as an error (unexpected duplicate source)
			}
			covered.Add(input.ID())
			source = input.(SourceLocation)
		case buildedges.BuildInputImageEdgeKind:
			if base != nil {
				// report this as an error (unexpected duplicate input build)
			}
			covered.Add(input.ID())
			base = input.(ImageTagLocation)
		}
	}
	return
}
Beispiel #2
0
// ImagePipelineFromNode attempts to locate a build flow from the provided node. If no such
// build flow can be located, false is returned.
func ImagePipelineFromNode(g osgraph.Graph, n graph.Node, covered osgraph.NodeSet) (ImagePipeline, bool) {
	flow := ImagePipeline{}
	switch node := n.(type) {

	case *buildgraph.BuildConfigNode:
		covered.Add(n.ID())
		base, src, _ := findBuildInputs(g, n, covered)
		flow.Build = node
		flow.BaseImage = base
		flow.Source = src
		return flow, true

	case ImageTagLocation:
		covered.Add(n.ID())
		flow.Image = node
		for _, input := range g.Neighbors(n) {
			switch g.EdgeKind(g.EdgeBetween(n, input)) {
			case buildedges.BuildOutputEdgeKind:
				covered.Add(input.ID())
				build := input.(*buildgraph.BuildConfigNode)
				if flow.Build != nil {
					// report this as an error (unexpected duplicate input build)
				}
				if build.BuildConfig == nil {
					// report this as as a missing build / broken link
					break
				}
				base, src, _ := findBuildInputs(g, input, covered)
				flow.Build = build
				flow.BaseImage = base
				flow.Source = src
			}
		}
		return flow, true

	default:
		return flow, false
	}
}