deprecate cli/command/stack/formatter

Functions and types in this package were exported as part of the "compose
on kubernetes" feature, which was deprecated and removed. These functions
are meant for internal use, and will be removed in the next release.

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

.golangci.yml

@@ -222,6 +222,14 @@ linters:
         linters:
           - staticcheck
 
+      # Ignore deprecation linting for cli/command/stack/*.
+      #
+      # FIXME(thaJeztah): remove exception once these functions are un-exported or internal; see https://github.com/docker/cli/pull/6389
+      - text: '^(SA1019): '
+        path: "cli/command/stack"
+        linters:
+          - staticcheck
+
     # Log a warning if an exclusion rule is unused.
     # Default: false
     warn-unused: true

cli/command/stack/formatter/formatter.go

@@ -8,21 +8,31 @@ import (
 
 const (
 	// SwarmStackTableFormat is the default Swarm stack format
+	//
+	// Deprecated: this type was for internal use and will be removed in the next release.
 	SwarmStackTableFormat formatter.Format = "table {{.Name}}\t{{.Services}}"
 
 	stackServicesHeader = "SERVICES"
 
 	// TableFormatKey is an alias for formatter.TableFormatKey
+	//
+	// Deprecated: this type was for internal use and will be removed in the next release.
 	TableFormatKey = formatter.TableFormatKey
 )
 
 // Context is an alias for formatter.Context
+//
+// Deprecated: this type was for internal use and will be removed in the next release.
 type Context = formatter.Context
 
 // Format is an alias for formatter.Format
+//
+// Deprecated: this type was for internal use and will be removed in the next release.
 type Format = formatter.Format
 
 // Stack contains deployed stack information.
+//
+// Deprecated: this type was for internal use and will be removed in the next release.
 type Stack struct {
 	// Name is the name of the stack
 	Name string
@@ -31,6 +41,8 @@ type Stack struct {
 }
 
 // StackWrite writes formatted stacks using the Context
+//
+// Deprecated: this function was for internal use and will be removed in the next release.
 func StackWrite(ctx formatter.Context, stacks []*Stack) error {
 	render := func(format func(subContext formatter.SubContext) error) error {
 		for _, stack := range stacks {