feat: add "all list" command to list all available resources (#580)

As described in #545

internal/cli/root.go

@@ -5,6 +5,7 @@ import (
 
 	"github.com/spf13/cobra"
 
+	"github.com/hetznercloud/cli/internal/cmd/all"
 	"github.com/hetznercloud/cli/internal/cmd/certificate"
 	"github.com/hetznercloud/cli/internal/cmd/completion"
 	"github.com/hetznercloud/cli/internal/cmd/context"
@@ -39,6 +40,7 @@ func NewRootCommand(state *state.State, client hcapi2.Client) *cobra.Command {
 		DisableFlagsInUseLine: true,
 	}
 	cmd.AddCommand(
+		all.NewCommand(state, client),
 		floatingip.NewCommand(state, client),
 		image.NewCommand(state, client),
 		server.NewCommand(state, client),

internal/cmd/all/all.go

@@ -0,0 +1,22 @@
+package all
+
+import (
+	"github.com/spf13/cobra"
+
+	"github.com/hetznercloud/cli/internal/hcapi2"
+	"github.com/hetznercloud/cli/internal/state"
+)
+
+func NewCommand(cli *state.State, client hcapi2.Client) *cobra.Command {
+	cmd := &cobra.Command{
+		Use:                   "all",
+		Short:                 "Commands that apply to all resources",
+		Args:                  cobra.NoArgs,
+		TraverseChildren:      true,
+		DisableFlagsInUseLine: true,
+	}
+	cmd.AddCommand(
+		listCmd.CobraCommand(cli.Context, client, cli, cli),
+	)
+	return cmd
+}

internal/cmd/all/list.go

@@ -0,0 +1,186 @@
+package all
+
+import (
+	"context"
+	"encoding/json"
+	"fmt"
+	"strings"
+
+	"github.com/spf13/cobra"
+	"github.com/spf13/pflag"
+
+	"github.com/hetznercloud/cli/internal/cmd/base"
+	"github.com/hetznercloud/cli/internal/cmd/certificate"
+	"github.com/hetznercloud/cli/internal/cmd/firewall"
+	"github.com/hetznercloud/cli/internal/cmd/floatingip"
+	"github.com/hetznercloud/cli/internal/cmd/image"
+	"github.com/hetznercloud/cli/internal/cmd/iso"
+	"github.com/hetznercloud/cli/internal/cmd/loadbalancer"
+	"github.com/hetznercloud/cli/internal/cmd/network"
+	"github.com/hetznercloud/cli/internal/cmd/output"
+	"github.com/hetznercloud/cli/internal/cmd/placementgroup"
+	"github.com/hetznercloud/cli/internal/cmd/primaryip"
+	"github.com/hetznercloud/cli/internal/cmd/server"
+	"github.com/hetznercloud/cli/internal/cmd/sshkey"
+	"github.com/hetznercloud/cli/internal/cmd/volume"
+	"github.com/hetznercloud/cli/internal/hcapi2"
+	"github.com/hetznercloud/cli/internal/state"
+	"github.com/hetznercloud/hcloud-go/v2/hcloud"
+)
+
+var allCmds = []base.ListCmd{
+	server.ListCmd,
+	image.ListCmd,
+	placementgroup.ListCmd,
+	primaryip.ListCmd,
+	iso.ListCmd,
+	volume.ListCmd,
+	loadbalancer.ListCmd,
+	floatingip.ListCmd,
+	network.ListCmd,
+	firewall.ListCmd,
+	certificate.ListCmd,
+	sshkey.ListCmd,
+}
+
+var listCmd = base.Cmd{
+	BaseCobraCommand: func(client hcapi2.Client) *cobra.Command {
+
+		var resources []string
+		for _, cmd := range allCmds {
+			resources = append(resources, " - "+cmd.ResourceNamePlural)
+		}
+
+		cmd := &cobra.Command{
+			Use:   "list FLAGS",
+			Short: "List all resources in the project",
+			Long: `List all resources in the project. This does not include static/public resources like locations, public ISOs, etc.
+
+Listed resources are:
+` + strings.Join(resources, "\n"),
+		}
+
+		cmd.Flags().StringP("selector", "l", "", "Selector to filter by labels")
+
+		cmd.Flags().Bool("paid", false, "Only list resources that cost money")
+
+		output.AddFlag(cmd, output.OptionJSON())
+
+		return cmd
+	},
+	Run: func(ctx context.Context, client hcapi2.Client, actionWaiter state.ActionWaiter, cmd *cobra.Command, args []string) error {
+
+		paid, _ := cmd.Flags().GetBool("paid")
+		labelSelector, _ := cmd.Flags().GetString("selector")
+
+		outOpts := output.FlagsForCommand(cmd)
+
+		var cmds []base.ListCmd
+		if paid {
+			cmds = []base.ListCmd{
+				server.ListCmd,
+				image.ListCmd,
+				primaryip.ListCmd,
+				volume.ListCmd,
+				loadbalancer.ListCmd,
+				floatingip.ListCmd,
+			}
+		} else {
+			cmds = []base.ListCmd{
+				server.ListCmd,
+				image.ListCmd,
+				placementgroup.ListCmd,
+				primaryip.ListCmd,
+				iso.ListCmd,
+				volume.ListCmd,
+				loadbalancer.ListCmd,
+				floatingip.ListCmd,
+				network.ListCmd,
+				firewall.ListCmd,
+				certificate.ListCmd,
+				sshkey.ListCmd,
+			}
+		}
+
+		type response struct {
+			result []any
+			err    error
+		}
+		responseChs := make([]chan response, len(cmds))
+
+		// Start all requests in parallel in order to minimize response time
+		for i, lc := range cmds {
+			i, lc := i, lc
+			ch := make(chan response)
+			responseChs[i] = ch
+
+			go func() {
+				defer close(ch)
+
+				listOpts := hcloud.ListOpts{
+					LabelSelector: labelSelector,
+				}
+
+				flagSet := pflag.NewFlagSet(lc.JSONKeyGetByName, pflag.ExitOnError)
+
+				switch lc.JSONKeyGetByName {
+				case image.ListCmd.JSONKeyGetByName:
+					flagSet.StringSlice("type", []string{"backup", "snapshot"}, "")
+				case iso.ListCmd.JSONKeyGetByName:
+					flagSet.StringSlice("type", []string{"private"}, "")
+				}
+
+				// FlagSet has to be parsed to be populated.
+				// We pass an empty slice because we defined the flags earlier.
+				_ = flagSet.Parse([]string{})
+
+				result, err := lc.Fetch(ctx, client, flagSet, listOpts, []string{})
+				ch <- response{result, err}
+			}()
+		}
+
+		// Wait for all requests to finish and collect results
+		resources := make([][]any, len(cmds))
+		for i, responseCh := range responseChs {
+			response := <-responseCh
+			if err := response.err; err != nil {
+				return err
+			}
+			resources[i] = response.result
+		}
+
+		if outOpts.IsSet("json") {
+			jsonSchema := make(map[string]any)
+			for i, lc := range cmds {
+				jsonSchema[lc.JSONKeyGetByName] = lc.JSONSchema(resources[i])
+			}
+			jsonBytes, err := json.Marshal(jsonSchema)
+			if err != nil {
+				return err
+			}
+			fmt.Printf("%s\n", jsonBytes)
+			return nil
+		}
+
+		for i, lc := range cmds {
+			cols := lc.DefaultColumns
+			table := lc.OutputTable(client)
+			table.WriteHeader(cols)
+
+			if len(resources[i]) == 0 {
+				continue
+			}
+
+			fmt.Print(strings.ToUpper(lc.ResourceNamePlural) + "\n---\n")
+			for _, resource := range resources[i] {
+				table.Write(cols, resource)
+			}
+			if err := table.Flush(); err != nil {
+				return err
+			}
+			fmt.Println()
+		}
+
+		return nil
+	},
+}