285
vendor/helm.sh/helm/v3/pkg/chartutil/dependencies.go
vendored
Normal file
285
vendor/helm.sh/helm/v3/pkg/chartutil/dependencies.go
vendored
Normal file
@@ -0,0 +1,285 @@
|
||||
/*
|
||||
Copyright The Helm Authors.
|
||||
Licensed under the Apache License, Version 2.0 (the "License");
|
||||
you may not use this file except in compliance with the License.
|
||||
You may obtain a copy of the License at
|
||||
|
||||
http://www.apache.org/licenses/LICENSE-2.0
|
||||
|
||||
Unless required by applicable law or agreed to in writing, software
|
||||
distributed under the License is distributed on an "AS IS" BASIS,
|
||||
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
See the License for the specific language governing permissions and
|
||||
limitations under the License.
|
||||
*/
|
||||
|
||||
package chartutil
|
||||
|
||||
import (
|
||||
"log"
|
||||
"strings"
|
||||
|
||||
"helm.sh/helm/v3/pkg/chart"
|
||||
)
|
||||
|
||||
// ProcessDependencies checks through this chart's dependencies, processing accordingly.
|
||||
func ProcessDependencies(c *chart.Chart, v Values) error {
|
||||
if err := processDependencyEnabled(c, v, ""); err != nil {
|
||||
return err
|
||||
}
|
||||
return processDependencyImportValues(c)
|
||||
}
|
||||
|
||||
// processDependencyConditions disables charts based on condition path value in values
|
||||
func processDependencyConditions(reqs []*chart.Dependency, cvals Values, cpath string) {
|
||||
if reqs == nil {
|
||||
return
|
||||
}
|
||||
for _, r := range reqs {
|
||||
for _, c := range strings.Split(strings.TrimSpace(r.Condition), ",") {
|
||||
if len(c) > 0 {
|
||||
// retrieve value
|
||||
vv, err := cvals.PathValue(cpath + c)
|
||||
if err == nil {
|
||||
// if not bool, warn
|
||||
if bv, ok := vv.(bool); ok {
|
||||
r.Enabled = bv
|
||||
break
|
||||
} else {
|
||||
log.Printf("Warning: Condition path '%s' for chart %s returned non-bool value", c, r.Name)
|
||||
}
|
||||
} else if _, ok := err.(ErrNoValue); !ok {
|
||||
// this is a real error
|
||||
log.Printf("Warning: PathValue returned error %v", err)
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// processDependencyTags disables charts based on tags in values
|
||||
func processDependencyTags(reqs []*chart.Dependency, cvals Values) {
|
||||
if reqs == nil {
|
||||
return
|
||||
}
|
||||
vt, err := cvals.Table("tags")
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
for _, r := range reqs {
|
||||
var hasTrue, hasFalse bool
|
||||
for _, k := range r.Tags {
|
||||
if b, ok := vt[k]; ok {
|
||||
// if not bool, warn
|
||||
if bv, ok := b.(bool); ok {
|
||||
if bv {
|
||||
hasTrue = true
|
||||
} else {
|
||||
hasFalse = true
|
||||
}
|
||||
} else {
|
||||
log.Printf("Warning: Tag '%s' for chart %s returned non-bool value", k, r.Name)
|
||||
}
|
||||
}
|
||||
}
|
||||
if !hasTrue && hasFalse {
|
||||
r.Enabled = false
|
||||
} else if hasTrue || !hasTrue && !hasFalse {
|
||||
r.Enabled = true
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func getAliasDependency(charts []*chart.Chart, dep *chart.Dependency) *chart.Chart {
|
||||
for _, c := range charts {
|
||||
if c == nil {
|
||||
continue
|
||||
}
|
||||
if c.Name() != dep.Name {
|
||||
continue
|
||||
}
|
||||
if !IsCompatibleRange(dep.Version, c.Metadata.Version) {
|
||||
continue
|
||||
}
|
||||
|
||||
out := *c
|
||||
md := *c.Metadata
|
||||
out.Metadata = &md
|
||||
|
||||
if dep.Alias != "" {
|
||||
md.Name = dep.Alias
|
||||
}
|
||||
return &out
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
// processDependencyEnabled removes disabled charts from dependencies
|
||||
func processDependencyEnabled(c *chart.Chart, v map[string]interface{}, path string) error {
|
||||
if c.Metadata.Dependencies == nil {
|
||||
return nil
|
||||
}
|
||||
|
||||
var chartDependencies []*chart.Chart
|
||||
// If any dependency is not a part of Chart.yaml
|
||||
// then this should be added to chartDependencies.
|
||||
// However, if the dependency is already specified in Chart.yaml
|
||||
// we should not add it, as it would be anyways processed from Chart.yaml
|
||||
|
||||
Loop:
|
||||
for _, existing := range c.Dependencies() {
|
||||
for _, req := range c.Metadata.Dependencies {
|
||||
if existing.Name() == req.Name && IsCompatibleRange(req.Version, existing.Metadata.Version) {
|
||||
continue Loop
|
||||
}
|
||||
}
|
||||
chartDependencies = append(chartDependencies, existing)
|
||||
}
|
||||
|
||||
for _, req := range c.Metadata.Dependencies {
|
||||
if chartDependency := getAliasDependency(c.Dependencies(), req); chartDependency != nil {
|
||||
chartDependencies = append(chartDependencies, chartDependency)
|
||||
}
|
||||
if req.Alias != "" {
|
||||
req.Name = req.Alias
|
||||
}
|
||||
}
|
||||
c.SetDependencies(chartDependencies...)
|
||||
|
||||
// set all to true
|
||||
for _, lr := range c.Metadata.Dependencies {
|
||||
lr.Enabled = true
|
||||
}
|
||||
cvals, err := CoalesceValues(c, v)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
// flag dependencies as enabled/disabled
|
||||
processDependencyTags(c.Metadata.Dependencies, cvals)
|
||||
processDependencyConditions(c.Metadata.Dependencies, cvals, path)
|
||||
// make a map of charts to remove
|
||||
rm := map[string]struct{}{}
|
||||
for _, r := range c.Metadata.Dependencies {
|
||||
if !r.Enabled {
|
||||
// remove disabled chart
|
||||
rm[r.Name] = struct{}{}
|
||||
}
|
||||
}
|
||||
// don't keep disabled charts in new slice
|
||||
cd := []*chart.Chart{}
|
||||
copy(cd, c.Dependencies()[:0])
|
||||
for _, n := range c.Dependencies() {
|
||||
if _, ok := rm[n.Metadata.Name]; !ok {
|
||||
cd = append(cd, n)
|
||||
}
|
||||
}
|
||||
// don't keep disabled charts in metadata
|
||||
cdMetadata := []*chart.Dependency{}
|
||||
copy(cdMetadata, c.Metadata.Dependencies[:0])
|
||||
for _, n := range c.Metadata.Dependencies {
|
||||
if _, ok := rm[n.Name]; !ok {
|
||||
cdMetadata = append(cdMetadata, n)
|
||||
}
|
||||
}
|
||||
|
||||
// recursively call self to process sub dependencies
|
||||
for _, t := range cd {
|
||||
subpath := path + t.Metadata.Name + "."
|
||||
if err := processDependencyEnabled(t, cvals, subpath); err != nil {
|
||||
return err
|
||||
}
|
||||
}
|
||||
// set the correct dependencies in metadata
|
||||
c.Metadata.Dependencies = nil
|
||||
c.Metadata.Dependencies = append(c.Metadata.Dependencies, cdMetadata...)
|
||||
c.SetDependencies(cd...)
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
// pathToMap creates a nested map given a YAML path in dot notation.
|
||||
func pathToMap(path string, data map[string]interface{}) map[string]interface{} {
|
||||
if path == "." {
|
||||
return data
|
||||
}
|
||||
return set(parsePath(path), data)
|
||||
}
|
||||
|
||||
func set(path []string, data map[string]interface{}) map[string]interface{} {
|
||||
if len(path) == 0 {
|
||||
return nil
|
||||
}
|
||||
cur := data
|
||||
for i := len(path) - 1; i >= 0; i-- {
|
||||
cur = map[string]interface{}{path[i]: cur}
|
||||
}
|
||||
return cur
|
||||
}
|
||||
|
||||
// processImportValues merges values from child to parent based on the chart's dependencies' ImportValues field.
|
||||
func processImportValues(c *chart.Chart) error {
|
||||
if c.Metadata.Dependencies == nil {
|
||||
return nil
|
||||
}
|
||||
// combine chart values and empty config to get Values
|
||||
cvals, err := CoalesceValues(c, nil)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
b := make(map[string]interface{})
|
||||
// import values from each dependency if specified in import-values
|
||||
for _, r := range c.Metadata.Dependencies {
|
||||
var outiv []interface{}
|
||||
for _, riv := range r.ImportValues {
|
||||
switch iv := riv.(type) {
|
||||
case map[string]interface{}:
|
||||
child := iv["child"].(string)
|
||||
parent := iv["parent"].(string)
|
||||
|
||||
outiv = append(outiv, map[string]string{
|
||||
"child": child,
|
||||
"parent": parent,
|
||||
})
|
||||
|
||||
// get child table
|
||||
vv, err := cvals.Table(r.Name + "." + child)
|
||||
if err != nil {
|
||||
log.Printf("Warning: ImportValues missing table from chart %s: %v", r.Name, err)
|
||||
continue
|
||||
}
|
||||
// create value map from child to be merged into parent
|
||||
b = CoalesceTables(cvals, pathToMap(parent, vv.AsMap()))
|
||||
case string:
|
||||
child := "exports." + iv
|
||||
outiv = append(outiv, map[string]string{
|
||||
"child": child,
|
||||
"parent": ".",
|
||||
})
|
||||
vm, err := cvals.Table(r.Name + "." + child)
|
||||
if err != nil {
|
||||
log.Printf("Warning: ImportValues missing table: %v", err)
|
||||
continue
|
||||
}
|
||||
b = CoalesceTables(b, vm.AsMap())
|
||||
}
|
||||
}
|
||||
// set our formatted import values
|
||||
r.ImportValues = outiv
|
||||
}
|
||||
|
||||
// set the new values
|
||||
c.Values = CoalesceTables(b, cvals)
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
// processDependencyImportValues imports specified chart values from child to parent.
|
||||
func processDependencyImportValues(c *chart.Chart) error {
|
||||
for _, d := range c.Dependencies() {
|
||||
// recurse
|
||||
if err := processDependencyImportValues(d); err != nil {
|
||||
return err
|
||||
}
|
||||
}
|
||||
return processImportValues(c)
|
||||
}
|
||||
Reference in New Issue
Block a user