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hugolib: Improve panic handling in layout rendering

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This commit is contained in:
Bjørn Erik Pedersen 2017-07-14 10:26:51 +02:00
parent 794ea21e94
commit 61bb3ccab3
1 changed files with 19 additions and 6 deletions
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25
hugolib/site.go
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@ -1966,27 +1966,40 @@ func (s *Site) renderAndWritePage(name string, dest string, p *PageOutput, layou
return s.publish(dest, outBuffer) return s.publish(dest, outBuffer)
} }
func (s *Site) renderForLayouts(name string, d interface{}, w io.Writer, layouts ...string) error { func (s *Site) renderForLayouts(name string, d interface{}, w io.Writer, layouts ...string) (err error) {
var templ tpl.Template
defer func() { defer func() {
recover() if r := recover(); r != nil {
templName := ""
if templ != nil {
templName = templ.Name()
}
helpers.DistinctErrorLog.Printf("Failed to render %q: %s", templName, r)
// TOD(bep) we really need to fix this. Also see below.
if !s.running() && !testMode {
os.Exit(-1)
}
}
}() }()
templ := s.findFirstTemplate(layouts...)
templ = s.findFirstTemplate(layouts...)
if templ == nil { if templ == nil {
return fmt.Errorf("[%s] Unable to locate layout for %q: %s\n", s.Language.Lang, name, layouts) return fmt.Errorf("[%s] Unable to locate layout for %q: %s\n", s.Language.Lang, name, layouts)
} }
if err := templ.Execute(w, d); err != nil { if err = templ.Execute(w, d); err != nil {
// Behavior here should be dependent on if running in server or watch mode. // Behavior here should be dependent on if running in server or watch mode.
helpers.DistinctErrorLog.Printf("Error while rendering %q: %s", name, err) helpers.DistinctErrorLog.Printf("Error while rendering %q: %s", name, err)
if !s.running() && !testMode { if !s.running() && !testMode {
// TODO(bep) check if this can be propagated // TODO(bep) check if this can be propagated
os.Exit(-1) os.Exit(-1)
} else if testMode { } else if testMode {
return err return
} }
} }
return nil return
} }
func (s *Site) findFirstTemplate(layouts ...string) tpl.Template { func (s *Site) findFirstTemplate(layouts ...string) tpl.Template {