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130 lines
3.4 KiB
130 lines
3.4 KiB
/*
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Copyright The Helm Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package chart
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import "strings"
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// APIVersionV1 is the API version number for version 1.
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const APIVersionV1 = "v1"
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// APIVersionV2 is the API version number for version 2.
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const APIVersionV2 = "v2"
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// Chart is a helm package that contains metadata, a default config, zero or more
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// optionally parameterizable templates, and zero or more charts (dependencies).
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type Chart struct {
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// Metadata is the contents of the Chartfile.
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Metadata *Metadata
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// LocK is the contents of Chart.lock.
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Lock *Lock
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// Templates for this chart.
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Templates []*File
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// Values are default config for this template.
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Values map[string]interface{}
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// Schema is an optional JSON schema for imposing structure on Values
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Schema []byte
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// Files are miscellaneous files in a chart archive,
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// e.g. README, LICENSE, etc.
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Files []*File
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parent *Chart
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dependencies []*Chart
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}
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// SetDependencies replaces the chart dependencies.
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func (ch *Chart) SetDependencies(charts ...*Chart) {
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ch.dependencies = nil
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ch.AddDependency(charts...)
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}
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// Name returns the name of the chart.
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func (ch *Chart) Name() string {
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if ch.Metadata == nil {
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return ""
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}
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return ch.Metadata.Name
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}
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// AddDependency determines if the chart is a subchart.
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func (ch *Chart) AddDependency(charts ...*Chart) {
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for i, x := range charts {
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charts[i].parent = ch
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ch.dependencies = append(ch.dependencies, x)
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}
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}
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// Root finds the root chart.
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func (ch *Chart) Root() *Chart {
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if ch.IsRoot() {
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return ch
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}
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return ch.Parent().Root()
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}
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// Dependencies are the charts that this chart depends on.
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func (ch *Chart) Dependencies() []*Chart { return ch.dependencies }
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// IsRoot determines if the chart is the root chart.
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func (ch *Chart) IsRoot() bool { return ch.parent == nil }
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// Parent returns a subchart's parent chart.
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func (ch *Chart) Parent() *Chart { return ch.parent }
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// ChartPath returns the full path to this chart in dot notation.
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func (ch *Chart) ChartPath() string {
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if !ch.IsRoot() {
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return ch.Parent().ChartPath() + "." + ch.Name()
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}
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return ch.Name()
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}
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// ChartFullPath returns the full path to this chart.
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func (ch *Chart) ChartFullPath() string {
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if !ch.IsRoot() {
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return ch.Parent().ChartFullPath() + "/charts/" + ch.Name()
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}
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return ch.Name()
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}
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// Validate validates the metadata.
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func (ch *Chart) Validate() error {
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return ch.Metadata.Validate()
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}
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// AppVersion returns the appversion of the chart.
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func (ch *Chart) AppVersion() string {
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if ch.Metadata == nil {
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return ""
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}
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return ch.Metadata.AppVersion
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}
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// CRDs returns a list of File objects in the 'crds/' directory of a Helm chart.
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func (ch *Chart) CRDs() []*File {
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files := []*File{}
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// Find all resources in the crds/ directory
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for _, f := range ch.Files {
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if strings.HasPrefix(f.Name, "crds/") {
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files = append(files, f)
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}
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}
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// Get CRDs from dependencies, too.
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for _, dep := range ch.Dependencies() {
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files = append(files, dep.CRDs()...)
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}
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return files
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}
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