deploy: Fix deploy defaults for non-zero flag values (e.g. maxDeletes, invalidateCDN)

This was broken in the config rewrite in Hugo 0.112.0.

The workaround is to be explicit about setting these flag values (even if just using the defaults), e.g.:

```
hugo deploy --invalidateCDN --maxDeletes 256
```

Fixes #11127

3 files changed, 13 insertions, 8 deletions

diff --git a/commands/deploy.go b/commands/deploy.go
index 82127adf4..ce1af9546 100644
--- a/commands/deploy.go
+++ b/commands/deploy.go
@@ -63,9 +63,9 @@ documentation.
 			cmd.Flags().Bool("confirm", false, "ask for confirmation before making changes to the target")
 			cmd.Flags().Bool("dryRun", false, "dry run")
 			cmd.Flags().Bool("force", false, "force upload of all files")
-			cmd.Flags().Bool("invalidateCDN", true, "invalidate the CDN cache listed in the deployment target")
-			cmd.Flags().Int("maxDeletes", 256, "maximum # of files to delete, or -1 to disable")
-			cmd.Flags().Int("workers", 10, "number of workers to transfer files. defaults to 10")
+			cmd.Flags().Bool("invalidateCDN", deploy.DefaultConfig.InvalidateCDN, "invalidate the CDN cache listed in the deployment target")
+			cmd.Flags().Int("maxDeletes", deploy.DefaultConfig.MaxDeletes, "maximum # of files to delete, or -1 to disable")
+			cmd.Flags().Int("workers", deploy.DefaultConfig.Workers, "number of workers to transfer files. defaults to 10")
 		},
 	}
 }
diff --git a/deploy/deployConfig.go b/deploy/deployConfig.go
index 3f5465171..5bbec5ab4 100644
--- a/deploy/deployConfig.go
+++ b/deploy/deployConfig.go
@@ -127,11 +127,16 @@ func (m *Matcher) Matches(path string) bool {
 	return m.re.MatchString(path)
 }
 
+var DefaultConfig = DeployConfig{
+	Workers:       10,
+	InvalidateCDN: true,
+	MaxDeletes:    256,
+}
+
 // DecodeConfig creates a config from a given Hugo configuration.
 func DecodeConfig(cfg config.Provider) (DeployConfig, error) {
-	var (
-		dcfg DeployConfig
-	)
+
+	dcfg := DefaultConfig
 
 	if !cfg.IsSet(deploymentConfigKey) {
 		return dcfg, nil
diff --git a/testscripts/commands/deploy.txt b/testscripts/commands/deploy.txt
index b21bf0b38..0afe1fc44 100644
--- a/testscripts/commands/deploy.txt
+++ b/testscripts/commands/deploy.txt
@@ -3,10 +3,10 @@
 hugo deploy -h
 stdout 'Deploy your site to a Cloud provider\.'
 mkdir mybucket
-hugo deploy --target mydeployment
+hugo deploy --target mydeployment --invalidateCDN=false
 grep 'hello' mybucket/index.html
 replace  public/index.html 'hello' 'changed'
-hugo deploy --target mydeployment --invalidateCDN --dryRun
+hugo deploy --target mydeployment --dryRun
 stdout 'Would upload: index.html'
 stdout 'Would invalidate CloudFront CDN with ID foobar'
 -- hugo.toml --