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tpl: Rework to handle both text and HTML templates

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Before this commit, Hugo used `html/template` for all Go templates.

While this is a fine choice for HTML and maybe also RSS feeds, it is painful for plain text formats such as CSV, JSON etc.

This commit fixes that by using the `IsPlainText` attribute on the output format to decide what to use.

A couple of notes:

* The above requires a nonambiguous template name to type mapping. I.e. `/layouts/_default/list.json` will only work if there is only one JSON output format, `/layouts/_default/list.mytype.json` will always work.
* Ambiguous types will fall back to HTML.
* Partials inherits the text vs HTML identificator of the container template. This also means that plain text templates can only include plain text partials.
* Shortcode templates are, by definition, currently HTML templates only.

Fixes #3221
This commit is contained in:
Bjørn Erik Pedersen
2017-03-27 20:43:49 +02:00
parent 73c1c7b69d
commit 5c5efa03d2
31 changed files with 1208 additions and 840 deletions
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4
hugolib/testhelpers_test.go
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@@ -164,9 +164,9 @@ func newDebugLogger() *jww.Notepad {
func newErrorLogger() *jww.Notepad {
return jww.NewNotepad(jww.LevelError, jww.LevelError, os.Stdout, ioutil.Discard, "", log.Ldate|log.Ltime)
}
func createWithTemplateFromNameValues(additionalTemplates ...string) func(templ tpl.Template) error {
func createWithTemplateFromNameValues(additionalTemplates ...string) func(templ tpl.TemplateHandler) error {
return func(templ tpl.Template) error {
return func(templ tpl.TemplateHandler) error {
for i := 0; i < len(additionalTemplates); i += 2 {
err := templ.AddTemplate(additionalTemplates[i], additionalTemplates[i+1])
if err != nil {