Merge pull request #186 from ecordell/rm-rf-helm

chore(deps): remove helm as a dependency

go.mod

@@ -25,7 +25,6 @@ require (
 	golang.org/x/oauth2 v0.0.0-20190604053449-0f29369cfe45
 	google.golang.org/grpc v1.24.0
 	gopkg.in/yaml.v2 v2.2.4
-	helm.sh/helm/v3 v3.0.1
 	k8s.io/api v0.0.0
 	k8s.io/apiextensions-apiserver v0.0.0
 	k8s.io/apimachinery v0.0.0
@@ -35,7 +34,6 @@ require (
 )
 
 replace (
-	github.com/docker/docker => github.com/moby/moby v0.7.3-0.20190826074503-38ab9da00309 // Required by Helm
 	k8s.io/api => k8s.io/api v0.0.0-20190918155943-95b840bb6a1f
 	k8s.io/apiextensions-apiserver => k8s.io/apiextensions-apiserver v0.0.0-20190918161926-8f644eb6e783
 	k8s.io/apimachinery => k8s.io/apimachinery v0.0.0-20190913080033-27d36303b655

go.sum

@@ -22,6 +22,7 @@ github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03
 github.com/BurntSushi/xgb v0.0.0-20160522181843-27f122750802/go.mod h1:IVnqGOEym/WlBOVXweHU+Q+/VP0lqqI8lqeDx9IjBqo=
 github.com/GoogleCloudPlatform/k8s-cloud-provider v0.0.0-20190822182118-27a4ced34534/go.mod h1:iroGtC8B3tQiqtds1l+mgk/BBOrxbqjH+eUfFQYRc14=
 github.com/JeffAshton/win_pdh v0.0.0-20161109143554-76bb4ee9f0ab/go.mod h1:3VYc5hodBMJ5+l/7J4xAyMeuM2PNuepvHlGs8yilUCA=
+github.com/MakeNowJust/heredoc v0.0.0-20170808103936-bb23615498cd h1:sjQovDkwrZp8u+gxLtPgKGjk5hCxuy2hrRejBTA9xFU=
 github.com/MakeNowJust/heredoc v0.0.0-20170808103936-bb23615498cd/go.mod h1:64YHyfSL2R96J44Nlwm39UHepQbyR5q10x7iYa1ks2E=
 github.com/MakeNowJust/heredoc v0.0.0-20171113091838-e9091a26100e h1:eb0Pzkt15Bm7f2FFYv7sjY7NPFi3cPkS3tv1CcrFBWA=
 github.com/MakeNowJust/heredoc v0.0.0-20171113091838-e9091a26100e/go.mod h1:64YHyfSL2R96J44Nlwm39UHepQbyR5q10x7iYa1ks2E=
@@ -152,6 +153,10 @@ github.com/docker/distribution v2.7.0+incompatible/go.mod h1:J2gT2udsDAN96Uj4Kfc
 github.com/docker/distribution v2.7.1-0.20190205005809-0d3efadf0154+incompatible/go.mod h1:J2gT2udsDAN96Uj4KfcMRqY0/ypR+oyYUYmja8H+y+w=
 github.com/docker/distribution v2.7.1+incompatible h1:a5mlkVzth6W5A4fOsS3D2EO5BUmsJpcB+cRlLU7cSug=
 github.com/docker/distribution v2.7.1+incompatible/go.mod h1:J2gT2udsDAN96Uj4KfcMRqY0/ypR+oyYUYmja8H+y+w=
+github.com/docker/docker v0.7.3-0.20190103212154-2b7e084dc98b/go.mod h1:eEKB0N0r5NX/I1kEveEz05bcu8tLC/8azJZsviup8Sk=
+github.com/docker/docker v0.7.3-0.20190327010347-be7ac8be2ae0/go.mod h1:eEKB0N0r5NX/I1kEveEz05bcu8tLC/8azJZsviup8Sk=
+github.com/docker/docker v0.7.3-0.20190817195342-4760db040282 h1:mzrx39dGtGq0VEnTHjnakmczd4uFbhx2cZU3BJDsLdc=
+github.com/docker/docker v0.7.3-0.20190817195342-4760db040282/go.mod h1:eEKB0N0r5NX/I1kEveEz05bcu8tLC/8azJZsviup8Sk=
 github.com/docker/docker-credential-helpers v0.6.1/go.mod h1:WRaJzqw3CTB9bk10avuGsjVBZsD05qeibJ1/TYlvc0Y=
 github.com/docker/go-connections v0.3.0/go.mod h1:Gbd7IOopHjR8Iph03tsViu4nIes5XhDvyHbTtUxmeec=
 github.com/docker/go-connections v0.4.0/go.mod h1:Gbd7IOopHjR8Iph03tsViu4nIes5XhDvyHbTtUxmeec=
@@ -160,6 +165,7 @@ github.com/docker/go-units v0.3.3/go.mod h1:fgPhTUdO+D/Jk86RDLlptpiXQzgHJF7gydDD
 github.com/docker/go-units v0.4.0/go.mod h1:fgPhTUdO+D/Jk86RDLlptpiXQzgHJF7gydDDbaIK4Dk=
 github.com/docker/libnetwork v0.0.0-20180830151422-a9cd636e3789/go.mod h1:93m0aTqz6z+g32wla4l4WxTrdtvBRmVzYRkYvasA5Z8=
 github.com/docker/libtrust v0.0.0-20160708172513-aabc10ec26b7/go.mod h1:cyGadeNEkKy96OOhEzfZl+yxihPEzKnqJwvfuSUqbZE=
+github.com/docker/spdystream v0.0.0-20160310174837-449fdfce4d96 h1:cenwrSVm+Z7QLSV/BsnenAOcDXdX4cMv4wP0B/5QbPg=
 github.com/docker/spdystream v0.0.0-20160310174837-449fdfce4d96/go.mod h1:Qh8CwZgvJUkLughtfhJv5dyTYa91l1fOUCrgjqmcifM=
 github.com/docker/spdystream v0.0.0-20181023171402-6480d4af844c h1:ZfSZ3P3BedhKGUhzj7BQlPSU4OvT6tfOKe3DVHzOA7s=
 github.com/docker/spdystream v0.0.0-20181023171402-6480d4af844c/go.mod h1:Qh8CwZgvJUkLughtfhJv5dyTYa91l1fOUCrgjqmcifM=

vendor/helm.sh/helm/v3/pkg/chart/metadata.go → pkg/lib/bundle/chartutil.go

@@ -1,10 +1,11 @@
 /*
 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
+    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,
@@ -13,7 +14,18 @@ See the License for the specific language governing permissions and
 limitations under the License.
 */
 
-package chart
+// Adapted from https://github.com/helm/helm/blob/b49db9e6e6fb1913a125b8cf9b31f81199c6753c/pkg/chartutil/chartfile.go
+
+package bundle
+
+import (
+	"io/ioutil"
+	"os"
+	"path/filepath"
+
+	"github.com/pkg/errors"
+	"gopkg.in/yaml.v2"
+)
 
 // Maintainer describes a Chart maintainer.
 type Maintainer struct {
@@ -25,6 +37,38 @@ type Maintainer struct {
 	URL string `json:"url,omitempty"`
 }
 
+// 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"`
+}
+
 // Metadata for a Chart file. This models the structure of a Chart.yaml file.
 type Metadata struct {
 	// The name of the chart
@@ -64,31 +108,38 @@ type Metadata struct {
 	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")
+// IsChartDir validates a chart directory.
+//
+// Checks for a valid Chart.yaml.
+func IsChartDir(dirName string) (bool, error) {
+	const ChartfileName = "Chart.yaml"
+
+	if fi, err := os.Stat(dirName); err != nil {
+		return false, err
+	} else if !fi.IsDir() {
+		return false, errors.Errorf("%q is not a directory", dirName)
 	}
-	if md.APIVersion == "" {
-		return ValidationError("chart.metadata.apiVersion is required")
+
+	chartYaml := filepath.Join(dirName, ChartfileName)
+	if _, err := os.Stat(chartYaml); os.IsNotExist(err) {
+		return false, errors.Errorf("no %s exists in directory %q", ChartfileName, dirName)
 	}
-	if md.Name == "" {
-		return ValidationError("chart.metadata.name is required")
+
+	chartYamlContent, err := ioutil.ReadFile(chartYaml)
+	if err != nil {
+		return false, errors.Errorf("cannot read %s in directory %q", ChartfileName, dirName)
 	}
-	if md.Version == "" {
-		return ValidationError("chart.metadata.version is required")
+
+	chartContent := new(Metadata)
+	if err := yaml.Unmarshal(chartYamlContent, &chartContent); err != nil {
+		return false, err
 	}
-	if !isValidChartType(md.Type) {
-		return ValidationError("chart.metadata.type must be application or library")
+	if chartContent == nil {
+		return false, errors.Errorf("chart metadata (%s) missing", ChartfileName)
 	}
-	// TODO validate valid semver here?
-	return nil
-}
-
-func isValidChartType(in string) bool {
-	switch in {
-	case "", "application", "library":
-		return true
+	if chartContent.Name == "" {
+		return false, errors.Errorf("invalid chart (%s): name must not be empty", ChartfileName)
 	}
-	return false
+
+	return true, nil
 }

pkg/lib/bundle/chartutil_test.go

@@ -0,0 +1,16 @@
+package bundle
+
+import "testing"
+
+func TestIsChartDir(t *testing.T) {
+	validChartDir, err := IsChartDir("testdata/frobnitz")
+	if !validChartDir {
+		t.Errorf("unexpected error while reading chart-directory: (%v)", err)
+		return
+	}
+	validChartDir, err = IsChartDir("testdata")
+	if validChartDir || err == nil {
+		t.Errorf("expected error but did not get any")
+		return
+	}
+}

pkg/lib/bundle/generate.go

@@ -8,10 +8,7 @@ import (
 	"strings"
 
 	log "github.com/sirupsen/logrus"
-
 	"gopkg.in/yaml.v2"
-	"helm.sh/helm/v3/pkg/chartutil"
-
 	"k8s.io/apimachinery/pkg/apis/meta/v1/unstructured"
 	k8syaml "k8s.io/apimachinery/pkg/util/yaml"
 )
@@ -131,7 +128,7 @@ func GetMediaType(directory string) (string, error) {
 	}
 
 	// Validate if bundle is helm chart type
-	if _, err := chartutil.IsChartDir(directory); err == nil {
+	if _, err := IsChartDir(directory); err == nil {
 		return HelmType, nil
 	}
 

pkg/lib/bundle/testdata/frobnitz/Chart.yaml

@@ -0,0 +1,27 @@
+apiVersion: v1
+name: frobnitz
+description: This is a frobnitz.
+version: "1.2.3"
+keywords:
+  - frobnitz
+  - sprocket
+  - dodad
+maintainers:
+  - name: The Helm Team
+    email: helm@example.com
+  - name: Someone Else
+    email: nobody@example.com
+sources:
+  - https://example.com/foo/bar
+home: http://example.com
+icon: https://example.com/64x64.png
+annotations:
+  extrakey: extravalue
+  anotherkey: anothervalue
+dependencies:
+  - name: alpine
+    version: "0.1.0"
+    repository: https://example.com/charts
+  - name: mariner
+    version: "4.3.2"
+    repository: https://example.com/charts