modules: Throttle the "downloading modules …" log entries

modules/client.go

@@ -18,6 +18,7 @@ import (
 	"bytes"
 	"context"
 	"encoding/json"
+	"errors"
 	"fmt"
 	"io"
 	"os"
@@ -46,8 +47,6 @@ import (
 
 	"github.com/gohugoio/hugo/common/hugio"
 
-	"errors"
-
 	"github.com/spf13/afero"
 )
 
@@ -105,10 +104,25 @@ func NewClient(cfg ClientConfig) *Client {
 		noVendor, _ = hglob.GetGlob(hglob.NormalizePath(cfg.ModuleConfig.NoVendor))
 	}
 
+	var throttleSince time.Time
+	throttle := func(f func()) {
+		if throttleSince.IsZero() {
+			throttleSince = time.Now()
+			f()
+			return
+		}
+		if time.Since(throttleSince) < 6*time.Second {
+			return
+		}
+		throttleSince = time.Now()
+		f()
+	}
+
 	return &Client{
 		fs:                fs,
 		ccfg:              cfg,
 		logger:            logger,
+		throttle:          throttle,
 		noVendor:          noVendor,
 		moduleConfig:      mcfg,
 		environ:           env,
@@ -118,8 +132,9 @@ func NewClient(cfg ClientConfig) *Client {
 
 // Client contains most of the API provided by this package.
 type Client struct {
-	fs     afero.Fs
+	fs       afero.Fs
-	logger loggers.Logger
+	logger   loggers.Logger
+	throttle func(f func())
 
 	noVendor glob.Glob
 
@@ -199,7 +214,7 @@ func (c *Client) Vendor() error {
 	if err := c.rmVendorDir(vendorDir); err != nil {
 		return err
 	}
-	if err := c.fs.MkdirAll(vendorDir, 0755); err != nil {
+	if err := c.fs.MkdirAll(vendorDir, 0o755); err != nil {
 		return err
 	}
 
@@ -260,7 +275,7 @@ func (c *Client) Vendor() error {
 			} else {
 				targetDir := filepath.Dir(targetFilename)
 
-				if err := c.fs.MkdirAll(targetDir, 0755); err != nil {
+				if err := c.fs.MkdirAll(targetDir, 0o755); err != nil {
 					return fmt.Errorf("failed to make target dir: %w", err)
 				}
 
@@ -303,7 +318,7 @@ func (c *Client) Vendor() error {
 	}
 
 	if modulesContent.Len() > 0 {
-		if err := afero.WriteFile(c.fs, filepath.Join(vendorDir, vendorModulesFilename), modulesContent.Bytes(), 0666); err != nil {
+		if err := afero.WriteFile(c.fs, filepath.Join(vendorDir, vendorModulesFilename), modulesContent.Bytes(), 0o666); err != nil {
 			return err
 		}
 	}
@@ -558,7 +573,7 @@ func (c *Client) rewriteGoMod(name string, isGoMod map[string]bool) error {
 		return err
 	}
 	if data != nil {
-		if err := afero.WriteFile(c.fs, filepath.Join(c.ccfg.WorkingDir, name), data, 0666); err != nil {
+		if err := afero.WriteFile(c.fs, filepath.Join(c.ccfg.WorkingDir, name), data, 0o666); err != nil {
 			return err
 		}
 	}
@@ -636,7 +651,8 @@ func (c *Client) rmVendorDir(vendorDir string) error {
 func (c *Client) runGo(
 	ctx context.Context,
 	stdout io.Writer,
-	args ...string) error {
+	args ...string,
+) error {
 	if c.goBinaryStatus != 0 {
 		return nil
 	}

modules/collect.go

@@ -15,6 +15,7 @@ package modules
 
 import (
 	"bufio"
+	"errors"
 	"fmt"
 	"os"
 	"path/filepath"
@@ -22,7 +23,6 @@ import (
 	"strings"
 	"time"
 
-	"github.com/bep/debounce"
 	"github.com/gohugoio/hugo/common/herrors"
 	"github.com/gohugoio/hugo/common/loggers"
 
@@ -37,8 +37,6 @@ import (
 
 	"github.com/rogpeppe/go-internal/module"
 
-	"errors"
-
 	"github.com/gohugoio/hugo/config"
 	"github.com/spf13/afero"
 )
@@ -124,7 +122,6 @@ func (m ModulesConfig) HasConfigFile() bool {
 		if len(mod.ConfigFilenames()) > 0 {
 			return true
 		}
-
 	}
 	return false
 }
@@ -220,7 +217,6 @@ func (c *collector) getVendoredDir(path string) (vendoredModule, bool) {
 }
 
 func (c *collector) add(owner *moduleAdapter, moduleImport Import) (*moduleAdapter, error) {
-
 	var (
 		mod       *goModule
 		moduleDir string
@@ -509,11 +505,10 @@ LOOP:
 
 func (c *collector) collect() {
 	defer c.logger.PrintTimerIfDelayed(time.Now(), "hugo: collected modules")
-	d := debounce.New(2 * time.Second)
+
-	d(func() {
+	c.throttle(func() {
 		c.logger.Println("hugo: downloading modules …")
 	})
-	defer d(func() {})
 
 	if err := c.initModules(); err != nil {
 		c.err = err
@@ -669,7 +664,6 @@ func (c *collector) normalizeMounts(owner *moduleAdapter, mounts []Mount) ([]Mou
 			} else {
 				continue
 			}
-
 		}
 
 		// Verify that target points to one of the predefined component dirs