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Reload all templates on change to preserve load order

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This commit is contained in:
Elnu 2023-07-22 16:54:25 -07:00
parent e70916c6c1
commit df8e0f8903
1 changed files with 15 additions and 13 deletions
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28
httputils/templates.go
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@ -13,7 +13,7 @@ import (
type TemplateSet struct {
templates *template.Template
paths []string
modTimes map[string]time.Time
loadTimes map[string]time.Time
}
func newTemplateSet(partials *TemplateSet, paths ...string) TemplateSet {
@ -33,7 +33,7 @@ func newTemplateSet(partials *TemplateSet, paths ...string) TemplateSet {
return TemplateSet{
templates: templates,
paths: allPaths,
modTimes: modTimes,
loadTimes: modTimes,
}
}
@ -49,19 +49,21 @@ func (templateSet *TemplateSet) ExecuteTemplate(wr io.Writer, name string, data
return templateSet.templates.ExecuteTemplate(wr, name, data)
}
func (templateSet *TemplateSet) reloadTemplateIfModified(path string) {
fileInfo, _ := os.Stat(path)
modTime := fileInfo.ModTime()
if modTime.After(templateSet.modTimes[path]) {
fmt.Printf("Reloading template %s...\n", path)
templateSet.templates.ParseFiles(path)
templateSet.modTimes[path] = modTime
}
}
func (templateSet *TemplateSet) reloadTemplatesIfModified() {
for path, loadTime := range templateSet.loadTimes {
fileInfo, _ := os.Stat(path)
modTime := fileInfo.ModTime()
if modTime.After(loadTime) {
fmt.Printf("%s updated: reloading templates...\n", path)
goto update
}
}
return
update:
now := time.Now()
for _, path := range templateSet.paths {
templateSet.reloadTemplateIfModified(path)
templateSet.templates.ParseFiles(path)
templateSet.loadTimes[path] = now
}
}