openpitrix crd

Signed-off-by: LiHui <andrewli@yunify.com>

delete helm repo, release and app

Signed-off-by: LiHui <andrewli@yunify.com>

Fix Dockerfile

Signed-off-by: LiHui <andrewli@yunify.com>

add unit test for category controller

Signed-off-by: LiHui <andrewli@yunify.com>

resource api

Signed-off-by: LiHui <andrewli@yunify.com>

miscellaneous

Signed-off-by: LiHui <andrewli@yunify.com>

resource api

Signed-off-by: LiHui <andrewli@yunify.com>

add s3 repo indx

Signed-off-by: LiHui <andrewli@yunify.com>

attachment api

Signed-off-by: LiHui <andrewli@yunify.com>

repo controller test

Signed-off-by: LiHui <andrewli@yunify.com>

application controller test

Signed-off-by: LiHui <andrewli@yunify.com>

release metric

Signed-off-by: LiHui <andrewli@yunify.com>

helm release controller test

Signed-off-by: LiHui <andrewli@yunify.com>

move constants to /pkg/apis/application

Signed-off-by: LiHui <andrewli@yunify.com>

remove unused code

Signed-off-by: LiHui <andrewli@yunify.com>

add license header

Signed-off-by: LiHui <andrewli@yunify.com>

Fix bugs

Signed-off-by: LiHui <andrewli@yunify.com>

cluster cluent

Signed-off-by: LiHui <andrewli@yunify.com>

format code

Signed-off-by: LiHui <andrewli@yunify.com>

move workspace,cluster from spec to labels

Signed-off-by: LiHui <andrewli@yunify.com>

add license header

Signed-off-by: LiHui <andrewli@yunify.com>

openpitrix test

Signed-off-by: LiHui <andrewli@yunify.com>

add worksapce labels for app in appstore

Signed-off-by: LiHui <andrewli@yunify.com>

vendor/helm.sh/helm/v3/pkg/chart/chart.go

@@ -0,0 +1,169 @@
+/*
+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 chart
+
+import (
+	"path/filepath"
+	"strings"
+)
+
+// APIVersionV1 is the API version number for version 1.
+const APIVersionV1 = "v1"
+
+// APIVersionV2 is the API version number for version 2.
+const APIVersionV2 = "v2"
+
+// Chart is a helm package that contains metadata, a default config, zero or more
+// optionally parameterizable templates, and zero or more charts (dependencies).
+type Chart struct {
+	// Raw contains the raw contents of the files originally contained in the chart archive.
+	//
+	// This should not be used except in special cases like `helm show values`,
+	// where we want to display the raw values, comments and all.
+	Raw []*File `json:"-"`
+	// Metadata is the contents of the Chartfile.
+	Metadata *Metadata `json:"metadata"`
+	// Lock is the contents of Chart.lock.
+	Lock *Lock `json:"lock"`
+	// Templates for this chart.
+	Templates []*File `json:"templates"`
+	// Values are default config for this chart.
+	Values map[string]interface{} `json:"values"`
+	// Schema is an optional JSON schema for imposing structure on Values
+	Schema []byte `json:"schema"`
+	// Files are miscellaneous files in a chart archive,
+	// e.g. README, LICENSE, etc.
+	Files []*File `json:"files"`
+
+	parent       *Chart
+	dependencies []*Chart
+}
+
+type CRD struct {
+	// Name is the File.Name for the crd file
+	Name string
+	// Filename is the File obj Name including (sub-)chart.ChartFullPath
+	Filename string
+	// File is the File obj for the crd
+	File *File
+}
+
+// SetDependencies replaces the chart dependencies.
+func (ch *Chart) SetDependencies(charts ...*Chart) {
+	ch.dependencies = nil
+	ch.AddDependency(charts...)
+}
+
+// Name returns the name of the chart.
+func (ch *Chart) Name() string {
+	if ch.Metadata == nil {
+		return ""
+	}
+	return ch.Metadata.Name
+}
+
+// AddDependency determines if the chart is a subchart.
+func (ch *Chart) AddDependency(charts ...*Chart) {
+	for i, x := range charts {
+		charts[i].parent = ch
+		ch.dependencies = append(ch.dependencies, x)
+	}
+}
+
+// Root finds the root chart.
+func (ch *Chart) Root() *Chart {
+	if ch.IsRoot() {
+		return ch
+	}
+	return ch.Parent().Root()
+}
+
+// Dependencies are the charts that this chart depends on.
+func (ch *Chart) Dependencies() []*Chart { return ch.dependencies }
+
+// IsRoot determines if the chart is the root chart.
+func (ch *Chart) IsRoot() bool { return ch.parent == nil }
+
+// Parent returns a subchart's parent chart.
+func (ch *Chart) Parent() *Chart { return ch.parent }
+
+// ChartPath returns the full path to this chart in dot notation.
+func (ch *Chart) ChartPath() string {
+	if !ch.IsRoot() {
+		return ch.Parent().ChartPath() + "." + ch.Name()
+	}
+	return ch.Name()
+}
+
+// ChartFullPath returns the full path to this chart.
+func (ch *Chart) ChartFullPath() string {
+	if !ch.IsRoot() {
+		return ch.Parent().ChartFullPath() + "/charts/" + ch.Name()
+	}
+	return ch.Name()
+}
+
+// Validate validates the metadata.
+func (ch *Chart) Validate() error {
+	return ch.Metadata.Validate()
+}
+
+// AppVersion returns the appversion of the chart.
+func (ch *Chart) AppVersion() string {
+	if ch.Metadata == nil {
+		return ""
+	}
+	return ch.Metadata.AppVersion
+}
+
+// CRDs returns a list of File objects in the 'crds/' directory of a Helm chart.
+// Deprecated: use CRDObjects()
+func (ch *Chart) CRDs() []*File {
+	files := []*File{}
+	// Find all resources in the crds/ directory
+	for _, f := range ch.Files {
+		if strings.HasPrefix(f.Name, "crds/") && hasManifestExtension(f.Name) {
+			files = append(files, f)
+		}
+	}
+	// Get CRDs from dependencies, too.
+	for _, dep := range ch.Dependencies() {
+		files = append(files, dep.CRDs()...)
+	}
+	return files
+}
+
+// CRDObjects returns a list of CRD objects in the 'crds/' directory of a Helm chart & subcharts
+func (ch *Chart) CRDObjects() []CRD {
+	crds := []CRD{}
+	// Find all resources in the crds/ directory
+	for _, f := range ch.Files {
+		if strings.HasPrefix(f.Name, "crds/") && hasManifestExtension(f.Name) {
+			mycrd := CRD{Name: f.Name, Filename: filepath.Join(ch.ChartFullPath(), f.Name), File: f}
+			crds = append(crds, mycrd)
+		}
+	}
+	// Get CRDs from dependencies, too.
+	for _, dep := range ch.Dependencies() {
+		crds = append(crds, dep.CRDObjects()...)
+	}
+	return crds
+}
+
+func hasManifestExtension(fname string) bool {
+	ext := filepath.Ext(fname)
+	return strings.EqualFold(ext, ".yaml") || strings.EqualFold(ext, ".yml") || strings.EqualFold(ext, ".json")
+}

vendor/helm.sh/helm/v3/pkg/chart/dependency.go

@@ -0,0 +1,62 @@
+/*
+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 chart
+
+import "time"
+
+// Dependency describes a chart upon which another chart depends.
+//
+// Dependencies can be used to express developer intent, or to capture the state
+// of a chart.
+type Dependency struct {
+	// Name is the name of the dependency.
+	//
+	// This must mach the name in the dependency's Chart.yaml.
+	Name string `json:"name"`
+	// Version is the version (range) of this chart.
+	//
+	// A lock file will always produce a single version, while a dependency
+	// may contain a semantic version range.
+	Version string `json:"version,omitempty"`
+	// The URL to the repository.
+	//
+	// Appending `index.yaml` to this string should result in a URL that can be
+	// used to fetch the repository index.
+	Repository string `json:"repository"`
+	// A yaml path that resolves to a boolean, used for enabling/disabling charts (e.g. subchart1.enabled )
+	Condition string `json:"condition,omitempty"`
+	// Tags can be used to group charts for enabling/disabling together
+	Tags []string `json:"tags,omitempty"`
+	// Enabled bool determines if chart should be loaded
+	Enabled bool `json:"enabled,omitempty"`
+	// ImportValues holds the mapping of source values to parent key to be imported. Each item can be a
+	// string or pair of child/parent sublist items.
+	ImportValues []interface{} `json:"import-values,omitempty"`
+	// Alias usable alias to be used for the chart
+	Alias string `json:"alias,omitempty"`
+}
+
+// Lock is a lock file for dependencies.
+//
+// It represents the state that the dependencies should be in.
+type Lock struct {
+	// Generated is the date the lock file was last generated.
+	Generated time.Time `json:"generated"`
+	// Digest is a hash of the dependencies in Chart.yaml.
+	Digest string `json:"digest"`
+	// Dependencies is the list of dependencies that this lock file has locked.
+	Dependencies []*Dependency `json:"dependencies"`
+}

vendor/helm.sh/helm/v3/pkg/chart/errors.go

@@ -0,0 +1,23 @@
+/*
+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 chart
+
+// ValidationError represents a data validation error.
+type ValidationError string
+
+func (v ValidationError) Error() string {
+	return "validation: " + string(v)
+}

vendor/helm.sh/helm/v3/pkg/chart/file.go

@@ -0,0 +1,27 @@
+/*
+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 chart
+
+// File represents a file as a name/value pair.
+//
+// By convention, name is a relative path within the scope of the chart's
+// base directory.
+type File struct {
+	// Name is the path-like name of the template.
+	Name string `json:"name"`
+	// Data is the template as byte data.
+	Data []byte `json:"data"`
+}

vendor/helm.sh/helm/v3/pkg/chart/loader/archive.go

@@ -0,0 +1,196 @@
+/*
+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 loader
+
+import (
+	"archive/tar"
+	"bytes"
+	"compress/gzip"
+	"fmt"
+	"io"
+	"net/http"
+	"os"
+	"path"
+	"regexp"
+	"strings"
+
+	"github.com/pkg/errors"
+
+	"helm.sh/helm/v3/pkg/chart"
+)
+
+var drivePathPattern = regexp.MustCompile(`^[a-zA-Z]:/`)
+
+// FileLoader loads a chart from a file
+type FileLoader string
+
+// Load loads a chart
+func (l FileLoader) Load() (*chart.Chart, error) {
+	return LoadFile(string(l))
+}
+
+// LoadFile loads from an archive file.
+func LoadFile(name string) (*chart.Chart, error) {
+	if fi, err := os.Stat(name); err != nil {
+		return nil, err
+	} else if fi.IsDir() {
+		return nil, errors.New("cannot load a directory")
+	}
+
+	raw, err := os.Open(name)
+	if err != nil {
+		return nil, err
+	}
+	defer raw.Close()
+
+	err = ensureArchive(name, raw)
+	if err != nil {
+		return nil, err
+	}
+
+	c, err := LoadArchive(raw)
+	if err != nil {
+		if err == gzip.ErrHeader {
+			return nil, fmt.Errorf("file '%s' does not appear to be a valid chart file (details: %s)", name, err)
+		}
+	}
+	return c, err
+}
+
+// ensureArchive's job is to return an informative error if the file does not appear to be a gzipped archive.
+//
+// Sometimes users will provide a values.yaml for an argument where a chart is expected. One common occurrence
+// of this is invoking `helm template values.yaml mychart` which would otherwise produce a confusing error
+// if we didn't check for this.
+func ensureArchive(name string, raw *os.File) error {
+	defer raw.Seek(0, 0) // reset read offset to allow archive loading to proceed.
+
+	// Check the file format to give us a chance to provide the user with more actionable feedback.
+	buffer := make([]byte, 512)
+	_, err := raw.Read(buffer)
+	if err != nil && err != io.EOF {
+		return fmt.Errorf("file '%s' cannot be read: %s", name, err)
+	}
+	if contentType := http.DetectContentType(buffer); contentType != "application/x-gzip" {
+		// TODO: Is there a way to reliably test if a file content is YAML? ghodss/yaml accepts a wide
+		//       variety of content (Makefile, .zshrc) as valid YAML without errors.
+
+		// Wrong content type. Let's check if it's yaml and give an extra hint?
+		if strings.HasSuffix(name, ".yml") || strings.HasSuffix(name, ".yaml") {
+			return fmt.Errorf("file '%s' seems to be a YAML file, but expected a gzipped archive", name)
+		}
+		return fmt.Errorf("file '%s' does not appear to be a gzipped archive; got '%s'", name, contentType)
+	}
+	return nil
+}
+
+// LoadArchiveFiles reads in files out of an archive into memory. This function
+// performs important path security checks and should always be used before
+// expanding a tarball
+func LoadArchiveFiles(in io.Reader) ([]*BufferedFile, error) {
+	unzipped, err := gzip.NewReader(in)
+	if err != nil {
+		return nil, err
+	}
+	defer unzipped.Close()
+
+	files := []*BufferedFile{}
+	tr := tar.NewReader(unzipped)
+	for {
+		b := bytes.NewBuffer(nil)
+		hd, err := tr.Next()
+		if err == io.EOF {
+			break
+		}
+		if err != nil {
+			return nil, err
+		}
+
+		if hd.FileInfo().IsDir() {
+			// Use this instead of hd.Typeflag because we don't have to do any
+			// inference chasing.
+			continue
+		}
+
+		switch hd.Typeflag {
+		// We don't want to process these extension header files.
+		case tar.TypeXGlobalHeader, tar.TypeXHeader:
+			continue
+		}
+
+		// Archive could contain \ if generated on Windows
+		delimiter := "/"
+		if strings.ContainsRune(hd.Name, '\\') {
+			delimiter = "\\"
+		}
+
+		parts := strings.Split(hd.Name, delimiter)
+		n := strings.Join(parts[1:], delimiter)
+
+		// Normalize the path to the / delimiter
+		n = strings.ReplaceAll(n, delimiter, "/")
+
+		if path.IsAbs(n) {
+			return nil, errors.New("chart illegally contains absolute paths")
+		}
+
+		n = path.Clean(n)
+		if n == "." {
+			// In this case, the original path was relative when it should have been absolute.
+			return nil, errors.Errorf("chart illegally contains content outside the base directory: %q", hd.Name)
+		}
+		if strings.HasPrefix(n, "..") {
+			return nil, errors.New("chart illegally references parent directory")
+		}
+
+		// In some particularly arcane acts of path creativity, it is possible to intermix
+		// UNIX and Windows style paths in such a way that you produce a result of the form
+		// c:/foo even after all the built-in absolute path checks. So we explicitly check
+		// for this condition.
+		if drivePathPattern.MatchString(n) {
+			return nil, errors.New("chart contains illegally named files")
+		}
+
+		if parts[0] == "Chart.yaml" {
+			return nil, errors.New("chart yaml not in base directory")
+		}
+
+		if _, err := io.Copy(b, tr); err != nil {
+			return nil, err
+		}
+
+		data := bytes.TrimPrefix(b.Bytes(), utf8bom)
+
+		files = append(files, &BufferedFile{Name: n, Data: data})
+		b.Reset()
+	}
+
+	if len(files) == 0 {
+		return nil, errors.New("no files in chart archive")
+	}
+	return files, nil
+}
+
+// LoadArchive loads from a reader containing a compressed tar archive.
+func LoadArchive(in io.Reader) (*chart.Chart, error) {
+	files, err := LoadArchiveFiles(in)
+	if err != nil {
+		return nil, err
+	}
+
+	return LoadFiles(files)
+}

vendor/helm.sh/helm/v3/pkg/chart/loader/directory.go

@@ -0,0 +1,120 @@
+/*
+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 loader
+
+import (
+	"bytes"
+	"fmt"
+	"io/ioutil"
+	"os"
+	"path/filepath"
+	"strings"
+
+	"github.com/pkg/errors"
+
+	"helm.sh/helm/v3/internal/ignore"
+	"helm.sh/helm/v3/internal/sympath"
+	"helm.sh/helm/v3/pkg/chart"
+)
+
+var utf8bom = []byte{0xEF, 0xBB, 0xBF}
+
+// DirLoader loads a chart from a directory
+type DirLoader string
+
+// Load loads the chart
+func (l DirLoader) Load() (*chart.Chart, error) {
+	return LoadDir(string(l))
+}
+
+// LoadDir loads from a directory.
+//
+// This loads charts only from directories.
+func LoadDir(dir string) (*chart.Chart, error) {
+	topdir, err := filepath.Abs(dir)
+	if err != nil {
+		return nil, err
+	}
+
+	// Just used for errors.
+	c := &chart.Chart{}
+
+	rules := ignore.Empty()
+	ifile := filepath.Join(topdir, ignore.HelmIgnore)
+	if _, err := os.Stat(ifile); err == nil {
+		r, err := ignore.ParseFile(ifile)
+		if err != nil {
+			return c, err
+		}
+		rules = r
+	}
+	rules.AddDefaults()
+
+	files := []*BufferedFile{}
+	topdir += string(filepath.Separator)
+
+	walk := func(name string, fi os.FileInfo, err error) error {
+		n := strings.TrimPrefix(name, topdir)
+		if n == "" {
+			// No need to process top level. Avoid bug with helmignore .* matching
+			// empty names. See issue 1779.
+			return nil
+		}
+
+		// Normalize to / since it will also work on Windows
+		n = filepath.ToSlash(n)
+
+		if err != nil {
+			return err
+		}
+		if fi.IsDir() {
+			// Directory-based ignore rules should involve skipping the entire
+			// contents of that directory.
+			if rules.Ignore(n, fi) {
+				return filepath.SkipDir
+			}
+			return nil
+		}
+
+		// If a .helmignore file matches, skip this file.
+		if rules.Ignore(n, fi) {
+			return nil
+		}
+
+		// Irregular files include devices, sockets, and other uses of files that
+		// are not regular files. In Go they have a file mode type bit set.
+		// See https://golang.org/pkg/os/#FileMode for examples.
+		if !fi.Mode().IsRegular() {
+			return fmt.Errorf("cannot load irregular file %s as it has file mode type bits set", name)
+		}
+
+		data, err := ioutil.ReadFile(name)
+		if err != nil {
+			return errors.Wrapf(err, "error reading %s", n)
+		}
+
+		data = bytes.TrimPrefix(data, utf8bom)
+
+		files = append(files, &BufferedFile{Name: n, Data: data})
+		return nil
+	}
+	if err = sympath.Walk(topdir, walk); err != nil {
+		return c, err
+	}
+
+	return LoadFiles(files)
+}

vendor/helm.sh/helm/v3/pkg/chart/loader/load.go

@@ -0,0 +1,185 @@
+/*
+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 loader
+
+import (
+	"bytes"
+	"log"
+	"os"
+	"path/filepath"
+	"strings"
+
+	"github.com/pkg/errors"
+	"sigs.k8s.io/yaml"
+
+	"helm.sh/helm/v3/pkg/chart"
+)
+
+// ChartLoader loads a chart.
+type ChartLoader interface {
+	Load() (*chart.Chart, error)
+}
+
+// Loader returns a new ChartLoader appropriate for the given chart name
+func Loader(name string) (ChartLoader, error) {
+	fi, err := os.Stat(name)
+	if err != nil {
+		return nil, err
+	}
+	if fi.IsDir() {
+		return DirLoader(name), nil
+	}
+	return FileLoader(name), nil
+
+}
+
+// Load takes a string name, tries to resolve it to a file or directory, and then loads it.
+//
+// This is the preferred way to load a chart. It will discover the chart encoding
+// and hand off to the appropriate chart reader.
+//
+// If a .helmignore file is present, the directory loader will skip loading any files
+// matching it. But .helmignore is not evaluated when reading out of an archive.
+func Load(name string) (*chart.Chart, error) {
+	l, err := Loader(name)
+	if err != nil {
+		return nil, err
+	}
+	return l.Load()
+}
+
+// BufferedFile represents an archive file buffered for later processing.
+type BufferedFile struct {
+	Name string
+	Data []byte
+}
+
+// LoadFiles loads from in-memory files.
+func LoadFiles(files []*BufferedFile) (*chart.Chart, error) {
+	c := new(chart.Chart)
+	subcharts := make(map[string][]*BufferedFile)
+
+	for _, f := range files {
+		c.Raw = append(c.Raw, &chart.File{Name: f.Name, Data: f.Data})
+		switch {
+		case f.Name == "Chart.yaml":
+			if c.Metadata == nil {
+				c.Metadata = new(chart.Metadata)
+			}
+			if err := yaml.Unmarshal(f.Data, c.Metadata); err != nil {
+				return c, errors.Wrap(err, "cannot load Chart.yaml")
+			}
+			// NOTE(bacongobbler): while the chart specification says that APIVersion must be set,
+			// Helm 2 accepted charts that did not provide an APIVersion in their chart metadata.
+			// Because of that, if APIVersion is unset, we should assume we're loading a v1 chart.
+			if c.Metadata.APIVersion == "" {
+				c.Metadata.APIVersion = chart.APIVersionV1
+			}
+		case f.Name == "Chart.lock":
+			c.Lock = new(chart.Lock)
+			if err := yaml.Unmarshal(f.Data, &c.Lock); err != nil {
+				return c, errors.Wrap(err, "cannot load Chart.lock")
+			}
+		case f.Name == "values.yaml":
+			c.Values = make(map[string]interface{})
+			if err := yaml.Unmarshal(f.Data, &c.Values); err != nil {
+				return c, errors.Wrap(err, "cannot load values.yaml")
+			}
+		case f.Name == "values.schema.json":
+			c.Schema = f.Data
+
+		// Deprecated: requirements.yaml is deprecated use Chart.yaml.
+		// We will handle it for you because we are nice people
+		case f.Name == "requirements.yaml":
+			if c.Metadata == nil {
+				c.Metadata = new(chart.Metadata)
+			}
+			if c.Metadata.APIVersion != chart.APIVersionV1 {
+				log.Printf("Warning: Dependencies are handled in Chart.yaml since apiVersion \"v2\". We recommend migrating dependencies to Chart.yaml.")
+			}
+			if err := yaml.Unmarshal(f.Data, c.Metadata); err != nil {
+				return c, errors.Wrap(err, "cannot load requirements.yaml")
+			}
+			if c.Metadata.APIVersion == chart.APIVersionV1 {
+				c.Files = append(c.Files, &chart.File{Name: f.Name, Data: f.Data})
+			}
+		// Deprecated: requirements.lock is deprecated use Chart.lock.
+		case f.Name == "requirements.lock":
+			c.Lock = new(chart.Lock)
+			if err := yaml.Unmarshal(f.Data, &c.Lock); err != nil {
+				return c, errors.Wrap(err, "cannot load requirements.lock")
+			}
+			if c.Metadata.APIVersion == chart.APIVersionV1 {
+				c.Files = append(c.Files, &chart.File{Name: f.Name, Data: f.Data})
+			}
+
+		case strings.HasPrefix(f.Name, "templates/"):
+			c.Templates = append(c.Templates, &chart.File{Name: f.Name, Data: f.Data})
+		case strings.HasPrefix(f.Name, "charts/"):
+			if filepath.Ext(f.Name) == ".prov" {
+				c.Files = append(c.Files, &chart.File{Name: f.Name, Data: f.Data})
+				continue
+			}
+
+			fname := strings.TrimPrefix(f.Name, "charts/")
+			cname := strings.SplitN(fname, "/", 2)[0]
+			subcharts[cname] = append(subcharts[cname], &BufferedFile{Name: fname, Data: f.Data})
+		default:
+			c.Files = append(c.Files, &chart.File{Name: f.Name, Data: f.Data})
+		}
+	}
+
+	if err := c.Validate(); err != nil {
+		return c, err
+	}
+
+	for n, files := range subcharts {
+		var sc *chart.Chart
+		var err error
+		switch {
+		case strings.IndexAny(n, "_.") == 0:
+			continue
+		case filepath.Ext(n) == ".tgz":
+			file := files[0]
+			if file.Name != n {
+				return c, errors.Errorf("error unpacking tar in %s: expected %s, got %s", c.Name(), n, file.Name)
+			}
+			// Untar the chart and add to c.Dependencies
+			sc, err = LoadArchive(bytes.NewBuffer(file.Data))
+		default:
+			// We have to trim the prefix off of every file, and ignore any file
+			// that is in charts/, but isn't actually a chart.
+			buff := make([]*BufferedFile, 0, len(files))
+			for _, f := range files {
+				parts := strings.SplitN(f.Name, "/", 2)
+				if len(parts) < 2 {
+					continue
+				}
+				f.Name = parts[1]
+				buff = append(buff, f)
+			}
+			sc, err = LoadFiles(buff)
+		}
+
+		if err != nil {
+			return c, errors.Wrapf(err, "error unpacking %s in %s", n, c.Name())
+		}
+		c.AddDependency(sc)
+	}
+
+	return c, nil
+}

vendor/helm.sh/helm/v3/pkg/chart/metadata.go

@@ -0,0 +1,94 @@
+/*
+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 chart
+
+// Maintainer describes a Chart maintainer.
+type Maintainer struct {
+	// Name is a user name or organization name
+	Name string `json:"name,omitempty"`
+	// Email is an optional email address to contact the named maintainer
+	Email string `json:"email,omitempty"`
+	// URL is an optional URL to an address for the named maintainer
+	URL string `json:"url,omitempty"`
+}
+
+// Metadata for a Chart file. This models the structure of a Chart.yaml file.
+type Metadata struct {
+	// The name of the chart
+	Name string `json:"name,omitempty"`
+	// The URL to a relevant project page, git repo, or contact person
+	Home string `json:"home,omitempty"`
+	// Source is the URL to the source code of this chart
+	Sources []string `json:"sources,omitempty"`
+	// A SemVer 2 conformant version string of the chart
+	Version string `json:"version,omitempty"`
+	// A one-sentence description of the chart
+	Description string `json:"description,omitempty"`
+	// A list of string keywords
+	Keywords []string `json:"keywords,omitempty"`
+	// A list of name and URL/email address combinations for the maintainer(s)
+	Maintainers []*Maintainer `json:"maintainers,omitempty"`
+	// The URL to an icon file.
+	Icon string `json:"icon,omitempty"`
+	// The API Version of this chart.
+	APIVersion string `json:"apiVersion,omitempty"`
+	// The condition to check to enable chart
+	Condition string `json:"condition,omitempty"`
+	// The tags to check to enable chart
+	Tags string `json:"tags,omitempty"`
+	// The version of the application enclosed inside of this chart.
+	AppVersion string `json:"appVersion,omitempty"`
+	// Whether or not this chart is deprecated
+	Deprecated bool `json:"deprecated,omitempty"`
+	// Annotations are additional mappings uninterpreted by Helm,
+	// made available for inspection by other applications.
+	Annotations map[string]string `json:"annotations,omitempty"`
+	// KubeVersion is a SemVer constraint specifying the version of Kubernetes required.
+	KubeVersion string `json:"kubeVersion,omitempty"`
+	// Dependencies are a list of dependencies for a chart.
+	Dependencies []*Dependency `json:"dependencies,omitempty"`
+	// Specifies the chart type: application or library
+	Type string `json:"type,omitempty"`
+}
+
+// Validate checks the metadata for known issues, returning an error if metadata is not correct
+func (md *Metadata) Validate() error {
+	if md == nil {
+		return ValidationError("chart.metadata is required")
+	}
+	if md.APIVersion == "" {
+		return ValidationError("chart.metadata.apiVersion is required")
+	}
+	if md.Name == "" {
+		return ValidationError("chart.metadata.name is required")
+	}
+	if md.Version == "" {
+		return ValidationError("chart.metadata.version is required")
+	}
+	if !isValidChartType(md.Type) {
+		return ValidationError("chart.metadata.type must be application or library")
+	}
+	// TODO validate valid semver here?
+	return nil
+}
+
+func isValidChartType(in string) bool {
+	switch in {
+	case "", "application", "library":
+		return true
+	}
+	return false
+}