Autogenerate basic helm readme's for app umbrella charts (#452)

* Autogenerate basic helm readme's for app umbrella charts

This will help at least provide some usable documentation for how to reconfigure helm charts

* bump helm-docs

cmd/plural/deploy.go

@@ -152,6 +152,7 @@ func (p *Plural) doBuild(installation *api.Installation, force bool) error {
 
 	workspace.PrintLinks()
 
+	appReadme(repoName, false) // nolint:errcheck
 	return err
 }
 

cmd/plural/workspace.go

@@ -8,7 +8,9 @@ import (
 
 	"github.com/pluralsh/plural/pkg/helm"
 	"github.com/pluralsh/plural/pkg/provider"
+	"github.com/pluralsh/plural/pkg/scaffold"
 	"github.com/pluralsh/plural/pkg/utils"
+	"github.com/pluralsh/plural/pkg/utils/git"
 	"github.com/pluralsh/plural/pkg/wkspace"
 	"github.com/urfave/cli"
 )
@@ -20,6 +22,18 @@ func (p *Plural) workspaceCommands() []cli.Command {
 			Usage:  "generates kubernetes credentials for this subworkspace",
 			Action: latestVersion(kubeInit),
 		},
+		{
+			Name:      "readme",
+			Usage:     "generate chart readme for an app",
+			ArgsUsage: "NAME",
+			Flags: []cli.Flag{
+				cli.BoolFlag{
+					Name:  "dry-run",
+					Usage: "output to stdout instead of to a file",
+				},
+			},
+			Action: latestVersion(func(c *cli.Context) error { return appReadme(c.Args().Get(0), c.Bool("dry-run")) }),
+		},
 		{
 			Name:      "helm",
 			Usage:     "upgrade/installs the helm chart for this subworkspace",
@@ -186,3 +200,13 @@ func (p *Plural) mapkubeapis(c *cli.Context) error {
 
 	return minimal.MapKubeApis()
 }
+
+func appReadme(name string, dryRun bool) error {
+	repoRoot, err := git.Root()
+	if err != nil {
+		return err
+	}
+
+	dir := filepath.Join(repoRoot, name, "helm", name)
+	return scaffold.Readme(dir, dryRun)
+}

go.mod

@@ -43,6 +43,7 @@ require (
 	github.com/mikesmitty/edkey v0.0.0-20170222072505-3356ea4e686a
 	github.com/mitchellh/go-homedir v1.1.0
 	github.com/mitchellh/mapstructure v1.5.0
+	github.com/norwoodj/helm-docs v1.11.2
 	github.com/olekukonko/tablewriter v0.0.5
 	github.com/packethost/packngo v0.29.0
 	github.com/pkg/browser v0.0.0-20210911075715-681adbf594b8
@@ -51,6 +52,7 @@ require (
 	github.com/pluralsh/polly v0.1.1
 	github.com/rodaine/hclencoder v0.0.1
 	github.com/samber/lo v1.33.0
+	github.com/spf13/viper v1.8.1
 	github.com/thoas/go-funk v0.9.2
 	github.com/urfave/cli v1.22.10
 	github.com/wailsapp/wails/v2 v2.4.1
@@ -97,6 +99,7 @@ require (
 	github.com/cenkalti/backoff v2.2.1+incompatible // indirect
 	github.com/emicklei/go-restful/v3 v3.9.0 // indirect
 	github.com/fatih/camelcase v1.0.0 // indirect
+	github.com/fsnotify/fsnotify v1.6.0 // indirect
 	github.com/go-gorp/gorp/v3 v3.1.0 // indirect
 	github.com/go-ole/go-ole v1.2.6 // indirect
 	github.com/goccy/go-json v0.9.7 // indirect
@@ -112,17 +115,23 @@ require (
 	github.com/leaanthony/go-ansi-parser v1.0.1 // indirect
 	github.com/leaanthony/gosod v1.0.3 // indirect
 	github.com/leaanthony/slicer v1.5.0 // indirect
+	github.com/magiconair/properties v1.8.5 // indirect
 	github.com/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822 // indirect
+	github.com/pelletier/go-toml v1.9.5 // indirect
 	github.com/pelletier/go-toml/v2 v2.0.1 // indirect
 	github.com/pluralsh/controller-reconcile-helper v0.0.4 // indirect
+	github.com/spf13/afero v1.8.0 // indirect
+	github.com/spf13/jwalterweatherman v1.1.0 // indirect
 	github.com/stretchr/objx v0.5.0 // indirect
+	github.com/subosito/gotenv v1.2.0 // indirect
 	github.com/tkrajina/go-reflector v0.5.5 // indirect
 	github.com/valyala/bytebufferpool v1.0.0 // indirect
 	github.com/valyala/fasttemplate v1.2.1 // indirect
 	github.com/vektah/gqlparser/v2 v2.5.1 // indirect
 	github.com/wailsapp/mimetype v1.4.1 // indirect
 	github.com/zclconf/go-cty v1.10.0 // indirect
 	google.golang.org/genproto v0.0.0-20230216225411-c8e22ba71e44 // indirect
+	gopkg.in/ini.v1 v1.62.0 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
 )
 
@@ -251,7 +260,7 @@ require (
 	github.com/schollz/progressbar/v3 v3.8.6 // indirect
 	github.com/sergi/go-diff v1.2.0 // indirect
 	github.com/shopspring/decimal v1.2.0 // indirect
-	github.com/sirupsen/logrus v1.9.0 // indirect
+	github.com/sirupsen/logrus v1.9.0
 	github.com/spf13/cast v1.4.1 // indirect
 	github.com/spf13/cobra v1.6.1 // indirect
 	github.com/spf13/pflag v1.0.5 // indirect
@@ -293,3 +302,5 @@ require (
 	sigs.k8s.io/kustomize/kyaml v0.13.9 // indirect
 	sigs.k8s.io/structured-merge-diff/v4 v4.2.3 // indirect
 )
+
+replace github.com/norwoodj/helm-docs v1.11.2 => github.com/pluralsh/helm-docs v1.11.3-0.20230914190909-3fe18acd95d7