mirror of
https://github.com/gohugoio/hugo.git
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115 lines
2.3 KiB
Go
115 lines
2.3 KiB
Go
package deps
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import (
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"io/ioutil"
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"log"
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"os"
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"github.com/spf13/hugo/helpers"
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"github.com/spf13/hugo/hugofs"
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"github.com/spf13/hugo/tplapi"
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jww "github.com/spf13/jwalterweatherman"
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)
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// Deps holds dependencies used by many.
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// There will be normally be only one instance of deps in play
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// at a given time, i.e. one per Site built.
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type Deps struct {
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// The logger to use.
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Log *jww.Notepad `json:"-"`
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// The templates to use.
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Tmpl tplapi.Template `json:"-"`
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// The file systems to use.
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Fs *hugofs.Fs `json:"-"`
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// The PathSpec to use
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*helpers.PathSpec `json:"-"`
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templateProvider TemplateProvider
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WithTemplate func(templ tplapi.Template) error
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// TODO(bep) globals next in line: Viper
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}
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// Used to create and refresh, and clone the template.
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type TemplateProvider interface {
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Update(deps *Deps) error
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Clone(deps *Deps) error
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}
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func (d *Deps) LoadTemplates() error {
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if err := d.templateProvider.Update(d); err != nil {
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return err
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}
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d.Tmpl.PrintErrors()
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return nil
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}
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func New(cfg DepsCfg) *Deps {
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var (
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logger = cfg.Logger
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fs = cfg.Fs
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)
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if cfg.TemplateProvider == nil {
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panic("Must have a TemplateProvider")
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}
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if cfg.Language == nil {
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panic("Must have a Language")
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}
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if logger == nil {
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logger = jww.NewNotepad(jww.LevelError, jww.LevelError, os.Stdout, ioutil.Discard, "", log.Ldate|log.Ltime)
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}
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if fs == nil {
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// Default to the most used file systems.
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fs = hugofs.NewMem()
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}
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d := &Deps{
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Fs: fs,
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Log: logger,
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templateProvider: cfg.TemplateProvider,
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WithTemplate: cfg.WithTemplate,
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PathSpec: helpers.NewPathSpec(fs, cfg.Language),
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}
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return d
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}
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// ForLanguage creates a copy of the Deps with the language dependent
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// parts switched out.
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func (d Deps) ForLanguage(l *helpers.Language) (*Deps, error) {
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d.PathSpec = helpers.NewPathSpec(d.Fs, l)
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if err := d.templateProvider.Clone(&d); err != nil {
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return nil, err
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}
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return &d, nil
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}
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// DepsCfg contains configuration options that can be used to configure Hugo
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// on a global level, i.e. logging etc.
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// Nil values will be given default values.
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type DepsCfg struct {
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// The Logger to use.
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Logger *jww.Notepad
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// The file systems to use
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Fs *hugofs.Fs
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// The language to use.
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Language *helpers.Language
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// Template handling.
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TemplateProvider TemplateProvider
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WithTemplate func(templ tplapi.Template) error
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}
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