Add a "deploy" command.

commands/commands.go

@@ -48,6 +48,7 @@ func (b *commandsBuilder) addAll() *commandsBuilder {
 		newEnvCmd(),
 		newConfigCmd(),
 		newCheckCmd(),
+		newDeployCmd(),
 		newConvertCmd(),
 		b.newNewCmd(),
 		newListCmd(),

commands/deploy.go

@@ -0,0 +1,83 @@
+// Copyright 2018 The Hugo Authors. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package commands
+
+import (
+	"context"
+
+	"github.com/gohugoio/hugo/deploy"
+	"github.com/spf13/cobra"
+)
+
+var _ cmder = (*deployCmd)(nil)
+
+// deployCmd supports deploying sites to Cloud providers.
+type deployCmd struct {
+	hugoBuilderCommon
+	*baseCmd
+
+	// Flags.
+	target           string
+	skipConfirmation bool
+	dryRun           bool
+	force            bool
+	maxDeletes       int
+}
+
+// TODO: In addition to the "deploy" command, consider adding a "--deploy"
+// flag for the default command; this would build the site and then deploy it.
+// It's not obvious how to do this; would all of the deploy-specific flags
+// have to exist at the top level as well?
+
+// TODO:  The output files change every time "hugo" is executed, it looks
+// like because of map order randomization. This means that you can
+// run "hugo && hugo deploy" again and again and upload new stuff every time. Is
+// this intended?
+
+func newDeployCmd() *deployCmd {
+	cc := &deployCmd{}
+
+	cc.baseCmd = newBaseCmd(&cobra.Command{
+		Use:   "deploy",
+		Short: "Deploy your site to a Cloud provider.",
+		// TODO: improve Long docstring.
+		// TODO: update real documentation. Is it in ../docs/ or in hugoDocs?
+		Long: `Deploy your site to a Cloud provider.`,
+
+		RunE: func(cmd *cobra.Command, args []string) error {
+			cfgInit := func(c *commandeer) error {
+				return nil
+			}
+			comm, err := initializeConfig(true, false, &cc.hugoBuilderCommon, cc, cfgInit)
+			if err != nil {
+				return err
+			}
+			return deploy.Deploy(context.Background(), comm.Cfg, comm.hugo.PathSpec.PublishFs, deploy.Options{
+				Target:           cc.target,
+				SkipConfirmation: cc.skipConfirmation,
+				DryRun:           cc.dryRun,
+				Force:            cc.force,
+				MaxDeletes:       cc.maxDeletes,
+			})
+		},
+	})
+
+	cc.cmd.Flags().StringVar(&cc.target, "target", "default", "target deployment from deployments section in config file")
+	cc.cmd.Flags().BoolVar(&cc.skipConfirmation, "skipConfirmation", false, "skip confirmation")
+	cc.cmd.Flags().BoolVar(&cc.dryRun, "dryRun", false, "dry run")
+	cc.cmd.Flags().BoolVar(&cc.force, "force", false, "force upload of all files")
+	cc.cmd.Flags().IntVar(&cc.maxDeletes, "maxDeletes", 256, "maximum # of files to delete, or -1 to disable")
+
+	return cc
+}