cli/command: remove dot-imports and unhandled errors

Please the linters in preparation of updating golangci-lint;

- remove dot-imports
- add some checks for unhandled errors
- replace some fixed-value variables for consts

    cli/command/image/build/context.go:238:17: G107: Potential HTTP request made with variable url (gosec)
        if resp, err = http.Get(url); err != nil {
                       ^
    cli/command/idresolver/idresolver_test.go:7:2: dot-imports: should not use dot imports (revive)
        . "github.com/docker/cli/internal/test/builders" // Import builders to get the builder function as package function
        ^
    cli/command/registry_test.go:7:2: dot-imports: should not use dot imports (revive)
        . "github.com/docker/cli/cli/command" // Prevents a circular import with "github.com/docker/cli/internal/test"
        ^
    cli/command/task/print_test.go:11:2: dot-imports: should not use dot imports (revive)
        . "github.com/docker/cli/internal/test/builders" // Import builders to get the builder function as package function
        ^
    cli/command/swarm/update_test.go:10:2: dot-imports: should not use dot imports (revive)
        . "github.com/docker/cli/internal/test/builders" // Import builders to get the builder function as package function
        ^
    cli/command/swarm/unlock_key_test.go:9:2: dot-imports: should not use dot imports (revive)
        . "github.com/docker/cli/internal/test/builders" // Import builders to get the builder function as package function
        ^
    cli/command/swarm/join_token_test.go:9:2: dot-imports: should not use dot imports (revive)
        . "github.com/docker/cli/internal/test/builders" // Import builders to get the builder function as package function
        ^
    cli/command/node/list_test.go:9:2: dot-imports: should not use dot imports (revive)
        . "github.com/docker/cli/internal/test/builders" // Import builders to get the builder function as package function
        ^
    cli/command/node/promote_test.go:8:2: dot-imports: should not use dot imports (revive)
        . "github.com/docker/cli/internal/test/builders" // Import builders to get the builder function as package function
        ^
    cli/command/node/demote_test.go:8:2: dot-imports: should not use dot imports (revive)
        . "github.com/docker/cli/internal/test/builders" // Import builders to get the builder function as package functions
        ^
    cli/command/node/ps_test.go:11:2: dot-imports: should not use dot imports (revive)
        . "github.com/docker/cli/internal/test/builders" // Import builders to get the builder function as package function
        ^
    cli/command/node/update_test.go:8:2: dot-imports: should not use dot imports (revive)
        . "github.com/docker/cli/internal/test/builders" // Import builders to get the builder function as package function
        ^
    cli/command/node/inspect_test.go:9:2: dot-imports: should not use dot imports (revive)
        . "github.com/docker/cli/internal/test/builders" // Import builders to get the builder function as package functions
        ^
    cli/command/secret/ls_test.go:11:2: dot-imports: should not use dot imports (revive)
        . "github.com/docker/cli/internal/test/builders" // Import builders to get the builder function as package function
        ^
    cli/command/secret/inspect_test.go:11:2: dot-imports: should not use dot imports (revive)
        . "github.com/docker/cli/internal/test/builders" // Import builders to get the builder function as package function
        ^
    cli/command/volume/inspect_test.go:9:2: dot-imports: should not use dot imports (revive)
        . "github.com/docker/cli/internal/test/builders" // Import builders to get the builder function as package function
        ^
    cli/command/volume/list_test.go:9:2: dot-imports: should not use dot imports (revive)
        . "github.com/docker/cli/internal/test/builders" // Import builders to get the builder function as package function
        ^
    cli/command/config/inspect_test.go:11:2: dot-imports: should not use dot imports (revive)
        . "github.com/docker/cli/internal/test/builders" // Import builders to get the builder function as package function
        ^
    cli/command/config/ls_test.go:11:2: dot-imports: should not use dot imports (revive)
        . "github.com/docker/cli/internal/test/builders" // Import builders to get the builder function as package function
        ^
    cli/command/network/list_test.go:9:2: dot-imports: should not use dot imports (revive)
        . "github.com/docker/cli/internal/test/builders"
        ^
    cli/command/container/list_test.go:10:2: dot-imports: should not use dot imports (revive)
        . "github.com/docker/cli/internal/test/builders" // Import builders to get the builder function as package function
        ^
    cli/command/service/list_test.go:12:2: dot-imports: should not use dot imports (revive)
        . "github.com/docker/cli/internal/test/builders"
        ^
    cli/command/service/client_test.go:6:2: dot-imports: should not use dot imports (revive)
        . "github.com/docker/cli/internal/test/builders" // Import builders to get the builder function as package function
        ^
    cli/command/stack/list_test.go:8:2: dot-imports: should not use dot imports (revive)
        . "github.com/docker/cli/internal/test/builders" // Import builders to get the builder function as package function
        ^
    cli/command/stack/services_test.go:9:2: dot-imports: should not use dot imports (revive)
        . "github.com/docker/cli/internal/test/builders" // Import builders to get the builder function as package function
        ^
    cli/command/stack/ps_test.go:10:2: dot-imports: should not use dot imports (revive)
        . "github.com/docker/cli/internal/test/builders" // Import builders to get the builder function as package function
        ^

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
(cherry picked from commit 594aeb390a)
Signed-off-by: Cory Snider <csnider@mirantis.com>

cli/command/network/list_test.go

@@ -6,7 +6,7 @@ import (
 	"testing"
 
 	"github.com/docker/cli/internal/test"
-	. "github.com/docker/cli/internal/test/builders"
+	"github.com/docker/cli/internal/test/builders"
 	"github.com/docker/docker/api/types"
 	"github.com/docker/docker/api/types/filters"
 	"github.com/google/go-cmp/cmp"
@@ -59,10 +59,10 @@ func TestNetworkList(t *testing.T) {
 				}
 				assert.Check(t, is.DeepEqual(expectedOpts, options, cmp.AllowUnexported(filters.Args{})))
 
-				return []types.NetworkResource{*NetworkResource(NetworkResourceID("123454321"),
-					NetworkResourceName("network_1"),
-					NetworkResourceDriver("09.7.01"),
-					NetworkResourceScope("global"))}, nil
+				return []types.NetworkResource{*builders.NetworkResource(builders.NetworkResourceID("123454321"),
+					builders.NetworkResourceName("network_1"),
+					builders.NetworkResourceDriver("09.7.01"),
+					builders.NetworkResourceScope("global"))}, nil
 			},
 		},
 		{
@@ -73,9 +73,9 @@ func TestNetworkList(t *testing.T) {
 			golden: "network-list-sort.golden",
 			networkListFunc: func(ctx context.Context, options types.NetworkListOptions) ([]types.NetworkResource, error) {
 				return []types.NetworkResource{
-					*NetworkResource(NetworkResourceName("network-2-foo")),
-					*NetworkResource(NetworkResourceName("network-1-foo")),
-					*NetworkResource(NetworkResourceName("network-10-foo")),
+					*builders.NetworkResource(builders.NetworkResourceName("network-2-foo")),
+					*builders.NetworkResource(builders.NetworkResourceName("network-1-foo")),
+					*builders.NetworkResource(builders.NetworkResourceName("network-10-foo")),
 				}, nil
 			},
 		},
@@ -86,7 +86,7 @@ func TestNetworkList(t *testing.T) {
 			cli := test.NewFakeCli(&fakeClient{networkListFunc: tc.networkListFunc})
 			cmd := newListCommand(cli)
 			for key, value := range tc.flags {
-				cmd.Flags().Set(key, value)
+				assert.Check(t, cmd.Flags().Set(key, value))
 			}
 			assert.NilError(t, cmd.Execute())
 			golden.Assert(t, cli.OutBuffer().String(), tc.golden)