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package ace
import (
"html/template"
"sync"
)
var cache = make(map[string]template.Template)
var cacheMutex = new(sync.RWMutex)
// Load loads and returns an HTML template. Each Ace templates are parsed only once
// and cached if the "DynamicReload" option are not set.
func Load(basePath, innerPath string, opts *Options) (*template.Template, error) {
// Initialize the options.
opts = InitializeOptions(opts)
name := basePath + colon + innerPath
if !opts.DynamicReload {
if tpl, ok := getCache(name); ok {
return &tpl, nil
}
}
// Read files.
src, err := readFiles(basePath, innerPath, opts)
if err != nil {
return nil, err
}
// Parse the source.
rslt, err := ParseSource(src, opts)
if err != nil {
return nil, err
}
// Compile the parsed result.
tpl, err := CompileResult(name, rslt, opts)
if err != nil {
return nil, err
}
if !opts.DynamicReload {
setCache(name, *tpl)
}
return tpl, nil
}
// getCache returns the cached template.
func getCache(name string) (template.Template, bool) {
cacheMutex.RLock()
tpl, ok := cache[name]
cacheMutex.RUnlock()
return tpl, ok
}
// setCache sets the template to the cache.
func setCache(name string, tpl template.Template) {
cacheMutex.Lock()
cache[name] = tpl
cacheMutex.Unlock()
}
// FlushCache clears all cached templates.
func FlushCache() {
cacheMutex.Lock()
cache = make(map[string]template.Template)
cacheMutex.Unlock()
}
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