[camel-k] 01/04: fix(cli): format long subcommand descriptions

[pc...@apache.org]

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pcongiusti pushed a commit to branch main
in repository https://gitbox.apache.org/repos/asf/camel-k.git

commit 257c060b405ef54c617f885f41da35957e509ec4
Author: Kuthumi Pepple <ku...@gmail.com>
AuthorDate: Fri Apr 22 10:57:28 2022 +0100

    fix(cli): format long subcommand descriptions
---
 go.mod          |  1 +
 pkg/cmd/root.go | 14 ++++++++++++++
 2 files changed, 15 insertions(+)

diff --git a/go.mod b/go.mod
index 751153992..540a92026 100644
--- a/go.mod
+++ b/go.mod
@@ -44,6 +44,7 @@ require (
 	go.uber.org/zap v1.21.0
 	golang.org/x/oauth2 v0.0.0-20220411215720-9780585627b5
 	golang.org/x/sync v0.0.0-20210220032951-036812b2e83c
+	golang.org/x/term v0.0.0-20210927222741-03fcf44c2211
 	gopkg.in/inf.v0 v0.9.1
 	gopkg.in/yaml.v2 v2.4.0
 	k8s.io/api v0.22.5
diff --git a/pkg/cmd/root.go b/pkg/cmd/root.go
index a01a02a5d..44d198a24 100644
--- a/pkg/cmd/root.go
+++ b/pkg/cmd/root.go
@@ -26,6 +26,7 @@ import (
 	"github.com/pkg/errors"
 	"github.com/spf13/cobra"
 	"github.com/spf13/viper"
+	"golang.org/x/term"
 
 	k8serrors "k8s.io/apimachinery/pkg/api/errors"
 
@@ -83,6 +84,11 @@ func kamelPreAddCommandInit(options *RootCmdOptions) *cobra.Command {
 	cmd.PersistentFlags().StringVar(&options.KubeConfig, "kube-config", os.Getenv("KUBECONFIG"), "Path to the kube config file to use for CLI requests")
 	cmd.PersistentFlags().StringVarP(&options.Namespace, "namespace", "n", "", "Namespace to use for all operations")
 
+	cobra.AddTemplateFunc("wrappedFlagUsages", wrappedFlagUsages)
+	usageTmpl := cmd.UsageTemplate()
+	usageTmpl = strings.Replace(usageTmpl, ".LocalFlags.FlagUsages", " wrappedFlagUsages .", 1)
+	cmd.SetUsageTemplate(usageTmpl)
+
 	return &cmd
 }
 
@@ -237,3 +243,11 @@ func (command *RootCmdOptions) GetCamelCmdClient() (*v1.CamelV1Client, error) {
 func (command *RootCmdOptions) NewCmdClient() (client.Client, error) {
 	return client.NewOutOfClusterClient(command.KubeConfig)
 }
+
+func wrappedFlagUsages(cmd *cobra.Command) string {
+	width := 80
+	if w, _, err := term.GetSize(0); err == nil {
+		width = w
+	}
+	return cmd.Flags().FlagUsagesWrapped(width - 1)
+}