golangci-lint: use gci formatter instead of goimports

Most files already grouped imports into "stdlib -> other -> local",
but some files didn't. The gci formatter is similar to goimports, but
has better options to make sure imports are grouped in the expected
order (and to make sure no additional groups are present).

This formatter has a 'fix' function, so code can be re-formatted auto-
matically;

    golangci-lint run -v --fix

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>

Author: thaJeztah

.golangci.yml

@@ -79,11 +79,18 @@ issues:
   max-same-issues: 0
 formatters:
   enable:
+    - gci
     - gofumpt
-    - goimports
   exclusions:
     generated: lax
     paths:
       - third_party$
       - builtin$
       - examples$
+  settings:
+    gci:
+      sections:
+        - standard
+        - default
+        - localmodule
+      custom-order: true # make the section order the same as the order of "sections".

cmd/cmdtrace/cmd_span.go

@@ -26,14 +26,15 @@ import (
 
 	dockercli "github.com/docker/cli/cli"
 	"github.com/docker/cli/cli/command"
-	commands "github.com/docker/compose/v5/cmd/compose"
-	"github.com/docker/compose/v5/internal/tracing"
 	"github.com/spf13/cobra"
 	flag "github.com/spf13/pflag"
 	"go.opentelemetry.io/otel"
 	"go.opentelemetry.io/otel/attribute"
 	"go.opentelemetry.io/otel/codes"
 	"go.opentelemetry.io/otel/trace"
+
+	commands "github.com/docker/compose/v5/cmd/compose"
+	"github.com/docker/compose/v5/internal/tracing"
 )
 
 // Setup should be called as part of the command's PersistentPreRunE

cmd/cmdtrace/cmd_span_test.go

@@ -20,9 +20,10 @@ import (
 	"reflect"
 	"testing"
 
-	commands "github.com/docker/compose/v5/cmd/compose"
 	"github.com/spf13/cobra"
 	flag "github.com/spf13/pflag"
+
+	commands "github.com/docker/compose/v5/cmd/compose"
 )
 
 func TestGetFlags(t *testing.T) {

cmd/compose/attach.go

@@ -20,9 +20,10 @@ import (
 	"context"
 
 	"github.com/docker/cli/cli/command"
+	"github.com/spf13/cobra"
+
 	"github.com/docker/compose/v5/pkg/api"
 	"github.com/docker/compose/v5/pkg/compose"
-	"github.com/spf13/cobra"
 )
 
 type attachOpts struct {

cmd/compose/build.go

@@ -26,11 +26,11 @@ import (
 	"github.com/compose-spec/compose-go/v2/types"
 	"github.com/docker/cli/cli/command"
 	cliopts "github.com/docker/cli/opts"
-	"github.com/docker/compose/v5/cmd/display"
-	"github.com/docker/compose/v5/pkg/compose"
 	"github.com/spf13/cobra"
 
+	"github.com/docker/compose/v5/cmd/display"
 	"github.com/docker/compose/v5/pkg/api"
+	"github.com/docker/compose/v5/pkg/compose"
 )
 
 type buildOptions struct {

cmd/compose/commit.go

@@ -21,9 +21,10 @@ import (
 
 	"github.com/docker/cli/cli/command"
 	"github.com/docker/cli/opts"
+	"github.com/spf13/cobra"
+
 	"github.com/docker/compose/v5/pkg/api"
 	"github.com/docker/compose/v5/pkg/compose"
-	"github.com/spf13/cobra"
 )
 
 type commitOptions struct {

cmd/compose/completion.go

@@ -21,9 +21,10 @@ import (
 	"strings"
 
 	"github.com/docker/cli/cli/command"
+	"github.com/spf13/cobra"
+
 	"github.com/docker/compose/v5/pkg/api"
 	"github.com/docker/compose/v5/pkg/compose"
-	"github.com/spf13/cobra"
 )
 
 // validArgsFn defines a completion func to be returned to fetch completion options

cmd/compose/compose.go

@@ -39,17 +39,18 @@ import (
 	"github.com/docker/cli/cli-plugins/metadata"
 	"github.com/docker/cli/cli/command"
 	"github.com/docker/cli/pkg/kvfile"
+	"github.com/morikuni/aec"
+	"github.com/sirupsen/logrus"
+	"github.com/spf13/cobra"
+	"github.com/spf13/pflag"
+
 	"github.com/docker/compose/v5/cmd/display"
 	"github.com/docker/compose/v5/cmd/formatter"
 	"github.com/docker/compose/v5/internal/tracing"
 	"github.com/docker/compose/v5/pkg/api"
 	"github.com/docker/compose/v5/pkg/compose"
 	"github.com/docker/compose/v5/pkg/remote"
 	"github.com/docker/compose/v5/pkg/utils"
-	"github.com/morikuni/aec"
-	"github.com/sirupsen/logrus"
-	"github.com/spf13/cobra"
-	"github.com/spf13/pflag"
 )
 
 const (

cmd/compose/config.go

@@ -30,10 +30,10 @@ import (
 	"github.com/compose-spec/compose-go/v2/template"
 	"github.com/compose-spec/compose-go/v2/types"
 	"github.com/docker/cli/cli/command"
-	"github.com/docker/compose/v5/cmd/formatter"
 	"github.com/spf13/cobra"
 	"gopkg.in/yaml.v3"
 
+	"github.com/docker/compose/v5/cmd/formatter"
 	"github.com/docker/compose/v5/pkg/api"
 	"github.com/docker/compose/v5/pkg/compose"
 )

cmd/compose/cp.go

@@ -22,10 +22,10 @@ import (
 
 	"github.com/docker/cli/cli"
 	"github.com/docker/cli/cli/command"
-	"github.com/docker/compose/v5/pkg/compose"
 	"github.com/spf13/cobra"
 
 	"github.com/docker/compose/v5/pkg/api"
+	"github.com/docker/compose/v5/pkg/compose"
 )
 
 type copyOptions struct {