func flowMap(root yaml.Node, env Environment) yaml.Node {
rootMap := root.Value().(map[string]yaml.Node)
env = env.WithScope(rootMap)
newMap := make(map[string]yaml.Node)
sortedKeys := getSortedKeys(rootMap)
// iteration order matters for the "<<" operator, it must be the first key in the map that is handled
for i := range sortedKeys {
key := sortedKeys[i]
val := rootMap[key]
if key == "<<" {
base := flow(val, env, true)
baseMap, ok := base.Value().(map[string]yaml.Node)
if ok {
for k, v := range baseMap {
newMap[k] = v
}
}
continue
}
newMap[key] = flow(val, env.WithPath(key), true)
}
return yaml.NewNode(newMap, root.SourceName())
}
func flowMap(root yaml.Node, env Environment) yaml.Node {
rootMap := root.Value().(map[string]yaml.Node)
env = env.WithScope(rootMap)
newMap := make(map[string]yaml.Node)
for key, val := range rootMap {
if key == "<<" {
base := flow(val, env, true)
baseMap, ok := base.Value().(map[string]yaml.Node)
if ok {
for k, v := range baseMap {
newMap[k] = v
}
}
continue
}
newMap[key] = flow(val, env.WithPath(key), true)
}
return yaml.NewNode(newMap, root.SourceName())
}
func (e Environment) FindFromRoot(path []string) (yaml.Node, bool) {
if len(e.Scope) == 0 {
return nil, false
}
return yaml.FindR(true, yaml.NewNode(e.Scope[0], "scope"), path...)
}
func listToMap(list []yaml.Node) map[string]yaml.Node {
toMap := make(map[string]yaml.Node)
for _, val := range list {
name, ok := yaml.FindString(val, "name")
if !ok {
return nil
}
asMap, ok := val.Value().(map[string]yaml.Node)
if !ok {
return nil
}
newMap := make(map[string]yaml.Node)
for key, val := range asMap {
if key != "name" {
newMap[key] = val
}
}
toMap[name] = yaml.NewNode(newMap, val.SourceName())
}
return toMap
}
func jobMap(jobs []yaml.Node) map[string]yaml.Node {
byName := make(map[string]yaml.Node)
for index, job := range jobs {
attrs, ok := job.Value().(map[string]yaml.Node)
attrs["index"] = yaml.NewNode(index, job.SourceName())
name, ok := yaml.FindString(job, "name")
if !ok {
panic("job without string name")
}
byName[name] = yaml.NewNode(attrs, job.SourceName())
}
return byName
}
func flowList(root yaml.Node, env Environment) yaml.Node {
rootList := root.Value().([]yaml.Node)
merged := processMerges(rootList, env)
newList := []yaml.Node{}
for idx, val := range merged {
step := stepName(idx, val)
newList = append(newList, flow(val, env.WithPath(step), false))
}
return yaml.NewNode(newList, root.SourceName())
}
func flowString(root yaml.Node, env Environment) yaml.Node {
rootString := root.Value().(string)
sub := embeddedDynaml.FindStringSubmatch(rootString)
if sub == nil {
return root
}
expr, err := dynaml.Parse(sub[1], env.Path)
if err != nil {
return root
}
return yaml.NewNode(expr, root.SourceName())
}
func newEntries(a []yaml.Node, b []yaml.Node) []yaml.Node {
added := []yaml.Node{}
for _, val := range a {
name, ok := yaml.FindString(val, "name")
if ok {
_, found := yaml.Find(yaml.NewNode(b, "some map"), name) // TODO
if found {
continue
}
}
added = append(added, val)
}
return added
}
func newEntries(a []yaml.Node, b []yaml.Node, keyName string) []yaml.Node {
if keyName == "" {
keyName = "name"
}
old := yaml.KeyNameNode(yaml.NewNode(b, "some map"), keyName)
added := []yaml.Node{}
for _, val := range a {
name, ok := yaml.FindStringR(true, val, keyName)
if ok {
_, found := yaml.FindR(true, old, name) // TODO
if found {
continue
}
}
added = append(added, val)
}
return added
}
})
})
Context("when some dynaml nodes cannot be resolved", func() {
It("returns an error", func() {
source := parseYAML(`
---
foo: (( auto ))
`)
_, err := Flow(source)
Expect(err).To(Equal(UnresolvedNodes{
Nodes: []UnresolvedNode{
{
Node: yaml.NewNode(
dynaml.AutoExpr{Path: []string{"foo"}},
"test",
),
Context: []string{"foo"},
Path: []string{"foo"},
},
},
}))
})
})
Context("when a reference is made to a yet-to-be-resolved node, in a || expression", func() {
It("eventually resolves to the referenced node", func() {
source := parseYAML(`
---
properties:
template_only: (( merge ))
import (
. "github.com/onsi/ginkgo"
. "github.com/onsi/gomega"
"github.com/cloudfoundry-incubator/spiff/dynaml"
"github.com/cloudfoundry-incubator/spiff/yaml"
)
var _ = Describe("Reporting unresolved nodes", func() {
It("formats a message listing the nodes", func() {
err := UnresolvedNodes{
Nodes: []UnresolvedNode{
{
Node: yaml.NewNode(
dynaml.AutoExpr{},
"some-file.yml",
),
Context: []string{"foo", "bar"},
Path: []string{"foo", "bar"},
},
{
Node: yaml.NewNode(
dynaml.MergeExpr{},
"some-other-file.yml",
),
Context: []string{"fizz", "[2]", "buzz"},
Path: []string{"fizz", "fizzbuzz", "buzz"},
},
},
}
})
})
Context("when some dynaml nodes cannot be resolved", func() {
It("returns an error", func() {
source := parseYAML(`
---
foo: (( auto ))
`)
_, err := Flow(source)
Expect(err).To(Equal(dynaml.UnresolvedNodes{
Nodes: []dynaml.UnresolvedNode{
{
Node: yaml.IssueNode(yaml.NewNode(
dynaml.AutoExpr{Path: []string{"foo"}},
"test",
), "auto only allowed for size entry in resource pools"),
Context: []string{"foo"},
Path: []string{"foo"},
},
},
}))
})
})
Context("when a reference is made to a yet-to-be-resolved node, in a || expression", func() {
It("eventually resolves to the referenced node", func() {
source := parseYAML(`
---
properties:
template_only: (( merge ))
func node(val interface{}) yaml.Node {
return yaml.NewNode(val, "dynaml")
}