🎁I Implement Page bundling and image handling

This commit is not the smallest in Hugo's history.

Some hightlights include:

* Page bundles (for complete articles, keeping images and content together etc.).
* Bundled images can be processed in as many versions/sizes as you need with the three methods `Resize`, `Fill` and `Fit`.
* Processed images are cached inside `resources/_gen/images` (default) in your project.
* Symbolic links (both files and dirs) are now allowed anywhere inside /content
* A new table based build summary
* The "Total in nn ms" now reports the total including the handling of the files inside /static. So if it now reports more than you're used to, it is just **more real** and probably faster than before (see below).

Fixes gohugoio#3651
Closes gohugoio#3158
Fixes gohugoio#1014
Closes gohugoio#2021
Fixes gohugoio#1240
Updates gohugoio#3757

Gopkg.toml

@@ -21,8 +21,8 @@
  revision = "v1.1.0"
 
 [[constraint]]
-  branch = "master"
-  name = "github.com/dchest/cssmin"
+ name = "github.com/disintegration/imaging"
+ revision = "v1.2.4"
 
 [[constraint]]
  name = "github.com/magefile/mage"
@@ -116,6 +116,10 @@
  name = "github.com/stretchr/testify"
  version = "1.1.4"
 
+[[constraint]]
+ branch = "master"
+ name = "github.com/olekukonko/tablewriter"
+
 [[constraint]]
  name = "github.com/yosssi/ace"
  version = "0.0.5"

commands/benchmark.go

@@ -53,7 +53,7 @@ func benchmark(cmd *cobra.Command, args []string) error {
  return err
  }
 
- c, err := newCommandeer(cfg)
+ c, err := newCommandeer(cfg, false)
  if err != nil {
  return err
  }
@@ -84,7 +84,7 @@ func benchmark(cmd *cobra.Command, args []string) error {
 
  t := time.Now()
  for i := 0; i < benchmarkTimes; i++ {
- if err = c.resetAndBuildSites(false); err != nil {
+ if err = c.resetAndBuildSites(); err != nil {
  return err
  }
  }

commands/commandeer.go

@@ -18,13 +18,16 @@ import (
  "github.com/gohugoio/hugo/deps"
  "github.com/gohugoio/hugo/helpers"
  "github.com/gohugoio/hugo/hugofs"
+ src "github.com/gohugoio/hugo/source"
 )
 
 type commandeer struct {
  *deps.DepsCfg
  pathSpec *helpers.PathSpec
  visitedURLs *types.EvictingStringQueue
 
+ staticDirsConfig []*src.Dirs
+
  serverPorts []int
 
  configured bool
@@ -44,10 +47,6 @@ func (c *commandeer) PathSpec() *helpers.PathSpec {
  return c.pathSpec
 }
 
-func (c *commandeer) languages() helpers.Languages {
- return c.Cfg.Get("languagesSorted").(helpers.Languages)
-}
-
 func (c *commandeer) initFs(fs *hugofs.Fs) error {
  c.DepsCfg.Fs = fs
  ps, err := helpers.NewPathSpec(fs, c.Cfg)
@@ -58,7 +57,8 @@ func (c *commandeer) initFs(fs *hugofs.Fs) error {
  return nil
 }
 
-func newCommandeer(cfg *deps.DepsCfg) (*commandeer, error) {
+func newCommandeer(cfg *deps.DepsCfg, watching bool) (*commandeer, error) {
+ cfg.Watching = watching
  l := cfg.Language
  if l == nil {
  l = helpers.NewDefaultLanguage(cfg.Cfg)
@@ -68,5 +68,14 @@ func newCommandeer(cfg *deps.DepsCfg) (*commandeer, error) {
  return nil, err
  }
 
- return &commandeer{DepsCfg: cfg, pathSpec: ps, visitedURLs: types.NewEvictingStringQueue(10)}, nil
+ c := &commandeer{DepsCfg: cfg, pathSpec: ps, visitedURLs: types.NewEvictingStringQueue(10)}
+
+ dirsConfig, err := c.createStaticDirsConfig()
+ if err != nil {
+ return nil, err
+ }
+ c.staticDirsConfig = dirsConfig
+ c.configured = false
+
+ return c, nil
 }