affinitygroup: enrich show and list (#107)

Signed-off-by: Yoan Blanc <[email protected]>

CHANGELOG.md

@@ -1,3 +1,9 @@
+1.0.9
+-----
+
+- feature: affinitygroup show
+- fix: no panics when the config is made via env variables only
+
 1.0.8
 -----
 

cmd/affinitygroup_list.go

@@ -2,6 +2,7 @@ package cmd
 
 import (
 	"os"
+	"strconv"
 
 	"github.com/exoscale/cli/table"
 	"github.com/exoscale/egoscale"
@@ -28,10 +29,15 @@ func displayAffinitygroup() error {
 	affinityGroups := resp.(*egoscale.ListAffinityGroupsResponse).AffinityGroup
 
 	table := table.NewTable(os.Stdout)
-	table.SetHeader([]string{"Name", "Description", "ID"})
+	table.SetHeader([]string{"Name", "Description", "Size", "ID"})
 
 	for _, affinitygroup := range affinityGroups {
-		table.Append([]string{affinitygroup.Name, affinitygroup.Description, affinitygroup.ID.String()})
+		table.Append([]string{
+			affinitygroup.Name,
+			affinitygroup.Description,
+			strconv.Itoa(len(affinitygroup.VirtualMachineIDs)),
+			affinitygroup.ID.String(),
+		})
 	}
 
 	table.Render()

cmd/affinitygroup_show.go

@@ -1,7 +1,9 @@
 package cmd
 
 import (
+	"fmt"
 	"os"
+	"text/tabwriter"
 
 	"github.com/exoscale/cli/table"
 	"github.com/exoscale/egoscale"
@@ -27,17 +29,29 @@ func showAffinityGroup(name string) error {
 		return err
 	}
 
+	w := tabwriter.NewWriter(os.Stdout, 0, 0, 1, ' ', tabwriter.TabIndent)
+
+	fmt.Fprintf(w, "Affinity Group:\t%s\n", ag.Name)     // nolint: errcheck
+	fmt.Fprintf(w, "ID:\t%s\n", ag.ID)                   // nolint: errcheck
+	fmt.Fprintf(w, "Description:\t%s\n", ag.Description) // nolint: errcheck
+	fmt.Fprintf(w, "Type:\t%s\n", ag.Type)               // nolint: errcheck
+
 	if len(ag.VirtualMachineIDs) == 0 {
+		fmt.Fprintf(w, "VirtualMachines:\tn/a\n") // nolint: errcheck
+		w.Flush()
 		return nil
 	}
 
+	fmt.Fprintf(w, "VirtualMachines:\n") // nolint: errcheck
+	w.Flush()
+
 	resp, err := cs.ListWithContext(gContext, &egoscale.ListVirtualMachines{IDs: ag.VirtualMachineIDs})
 	if err != nil {
 		return err
 	}
 
 	table := table.NewTable(os.Stdout)
-	table.SetHeader([]string{"Instance Display Name", "Instance ID"})
+	table.SetHeader([]string{"Name", "ID"})
 
 	for _, r := range resp {
 		vm := r.(*egoscale.VirtualMachine)