cli: new sub-packages clisqlclient and clisqlshell.

Release note: None

pkg/cli/clisqlclient/BUILD.bazel

@@ -0,0 +1,8 @@
+load("@io_bazel_rules_go//go:def.bzl", "go_library")
+
+go_library(
+    name = "clisqlclient",
+    srcs = ["doc.go"],
+    importpath = "github.com/cockroachdb/cockroach/pkg/cli/clisqlclient",
+    visibility = ["//visibility:public"],
+)

pkg/cli/clisqlclient/doc.go

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+// Copyright 2021 The Cockroach Authors.
+//
+// Use of this software is governed by the Business Source License
+// included in the file licenses/BSL.txt.
+//
+// As of the Change Date specified in that file, in accordance with
+// the Business Source License, use of this software will be governed
+// by the Apache License, Version 2.0, included in the file
+// licenses/APL.txt.
+
+// Package clisqlclient contains code common to all CLI commands
+// that establish SQL connections, including but not exclusively
+// the SQL interactive shell. It also supports commands like
+// 'cockroach node ls'.
+package clisqlclient

pkg/cli/clisqlshell/BUILD.bazel

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+load("@io_bazel_rules_go//go:def.bzl", "go_library")
+
+go_library(
+    name = "clisqlshell",
+    srcs = ["doc.go"],
+    importpath = "github.com/cockroachdb/cockroach/pkg/cli/clisqlshell",
+    visibility = ["//visibility:public"],
+)

pkg/cli/clisqlshell/doc.go

@@ -0,0 +1,17 @@
+// Copyright 2021 The Cockroach Authors.
+//
+// Use of this software is governed by the Business Source License
+// included in the file licenses/BSL.txt.
+//
+// As of the Change Date specified in that file, in accordance with
+// the Business Source License, use of this software will be governed
+// by the Apache License, Version 2.0, included in the file
+// licenses/APL.txt.
+
+// Package clisqlshell contains the code that powers CockroachDB's
+// interactive SQL shell.
+//
+// Note that the common code that is shared with other CLI commands
+// that are not interactive SQL shells but establish a SQL connection
+// to a server should be placed in package clisqlclient instead.
+package clisqlshell