add --col-width to `helm search` (#3949)

* add customizeable --col-width

* make docs. whitespacing

cmd/helm/search.go

@@ -47,6 +47,7 @@ type searchCmd struct {
 	versions bool
 	regexp   bool
 	version  string
+	colWidth uint
 }
 
 func newSearchCmd(out io.Writer) *cobra.Command {
@@ -66,6 +67,7 @@ func newSearchCmd(out io.Writer) *cobra.Command {
 	f.BoolVarP(&sc.regexp, "regexp", "r", false, "use regular expressions for searching")
 	f.BoolVarP(&sc.versions, "versions", "l", false, "show the long listing, with each version of each chart on its own line")
 	f.StringVarP(&sc.version, "version", "v", "", "search using semantic versioning constraints")
+	f.UintVar(&sc.colWidth, "col-width", 60, "specifies the max column width of output")
 
 	return cmd
 }
@@ -93,7 +95,7 @@ func (s *searchCmd) run(args []string) error {
 		return err
 	}
 
-	fmt.Fprintln(s.out, s.formatSearchResults(data))
+	fmt.Fprintln(s.out, s.formatSearchResults(data, s.colWidth))
 
 	return nil
 }
@@ -126,12 +128,12 @@ func (s *searchCmd) applyConstraint(res []*search.Result) ([]*search.Result, err
 	return data, nil
 }
 
-func (s *searchCmd) formatSearchResults(res []*search.Result) string {
+func (s *searchCmd) formatSearchResults(res []*search.Result, colWidth uint) string {
 	if len(res) == 0 {
 		return "No results found"
 	}
 	table := uitable.New()
-	table.MaxColWidth = 50
+	table.MaxColWidth = colWidth
 	table.AddRow("NAME", "CHART VERSION", "APP VERSION", "DESCRIPTION")
 	for _, r := range res {
 		table.AddRow(r.Name, r.Chart.Version, r.Chart.AppVersion, r.Chart.Description)

docs/helm/helm_search.md

@@ -19,6 +19,7 @@ helm search [keyword]
 ### Options
 
 ```
+      --col-width uint   specifies the max column width of output (default 60)
   -r, --regexp           use regular expressions for searching
   -v, --version string   search using semantic versioning constraints
   -l, --versions         show the long listing, with each version of each chart on its own line
@@ -38,4 +39,4 @@ helm search [keyword]
 ### SEE ALSO
 * [helm](helm.md)	 - The Helm package manager for Kubernetes.
 
-###### Auto generated by spf13/cobra on 8-Mar-2018
+###### Auto generated by spf13/cobra on 23-Apr-2018