Only print the path warnings once

We could reset and rerun it on server rebuilds, but that report needs a full build to make sense.

Also clean up the config vs flags in this area: Make all config settings match the flags e.g. `printPathWarnings`, but set up aliases for the
old.

Fixes #11187

commands/commandeer.go

@@ -110,12 +110,10 @@ type rootCommand struct {
 	environment string
 
 	// Common build flags.
-	baseURL              string
-	gc                   bool
-	poll                 string
-	forceSyncStatic      bool
-	printPathWarnings    bool
-	printUnusedTemplates bool
+	baseURL         string
+	gc              bool
+	poll            string
+	forceSyncStatic bool
 
 	// Profile flags (for debugging of performance problems)
 	cpuprofile   string
@@ -288,7 +286,7 @@ func (r *rootCommand) ConfigFromProvider(key int32, cfg config.Provider) (*commo
 			htime.Clock = clock.Start(configs.Base.C.Clock)
 		}
 
-		if base.LogPathWarnings {
+		if base.PrintPathWarnings {
 			// Note that we only care about the "dynamic creates" here,
 			// so skip the static fs.
 			fs.PublishDir = hugofs.NewCreateCountingFs(fs.PublishDir)
@@ -544,8 +542,8 @@ func applyLocalFlagsBuild(cmd *cobra.Command, r *rootCommand) {
 	cmd.Flags().BoolP("noChmod", "", false, "don't sync permission mode of files")
 	cmd.Flags().BoolP("noBuildLock", "", false, "don't create .hugo_build.lock file")
 	cmd.Flags().BoolP("printI18nWarnings", "", false, "print missing translations")
-	cmd.Flags().BoolVarP(&r.printPathWarnings, "printPathWarnings", "", false, "print warnings on duplicate target paths etc.")
-	cmd.Flags().BoolVarP(&r.printUnusedTemplates, "printUnusedTemplates", "", false, "print warnings on unused templates.")
+	cmd.Flags().BoolP("printPathWarnings", "", false, "print warnings on duplicate target paths etc.")
+	cmd.Flags().BoolP("printUnusedTemplates", "", false, "print warnings on unused templates.")
 	cmd.Flags().StringVarP(&r.cpuprofile, "profile-cpu", "", "", "write cpu profile to `file`")
 	cmd.Flags().StringVarP(&r.memprofile, "profile-mem", "", "", "write memory profile to `file`")
 	cmd.Flags().BoolVarP(&r.printm, "printMemoryUsage", "", false, "print memory usage to screen at intervals")

commands/helpers.go

@@ -79,11 +79,9 @@ func flagsToCfgWithAdditionalConfigBase(cd *simplecobra.Commandeer, cfg config.P
 
 	// Flags with a different name in the config.
 	keyMap := map[string]string{
-		"minify":            "minifyOutput",
-		"destination":       "publishDir",
-		"printI18nWarnings": "logI18nWarnings",
-		"printPathWarnings": "logPathWarnings",
-		"editor":            "newContentEditor",
+		"minify":      "minifyOutput",
+		"destination": "publishDir",
+		"editor":      "newContentEditor",
 	}
 
 	// Flags that we for some reason don't want to expose in the site config.

commands/hugobuilder.go

@@ -43,7 +43,6 @@ import (
 	"github.com/gohugoio/hugo/hugolib/filesystems"
 	"github.com/gohugoio/hugo/livereload"
 	"github.com/gohugoio/hugo/resources/page"
-	"github.com/gohugoio/hugo/tpl"
 	"github.com/gohugoio/hugo/watcher"
 	"github.com/spf13/fsync"
 	"golang.org/x/sync/errgroup"
@@ -418,13 +417,6 @@ func (c *hugoBuilder) build() error {
 			return err
 		}
 
-		if c.r.printUnusedTemplates {
-			unusedTemplates := h.Tmpl().(tpl.UnusedTemplatesProvider).UnusedTemplates()
-			for _, unusedTemplate := range unusedTemplates {
-				c.r.logger.Warnf("Template %s is unused, source file %s", unusedTemplate.Name(), unusedTemplate.Filename())
-			}
-		}
-
 		h.PrintProcessingStats(os.Stdout)
 		c.r.Println()
 	}