66 lines
1.8 KiB
Go
66 lines
1.8 KiB
Go
package filter
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import (
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"io/ioutil"
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"os"
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"path"
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"strings"
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"gitbase.de/apairon/mark2web/pkg/logger"
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"gitbase.de/apairon/mark2web/pkg/mark2web"
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"github.com/ddliu/motto"
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"github.com/flosch/pongo2"
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_ "github.com/robertkrimen/otto/underscore"
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)
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// RegisterFilters reads a directory and register filters from files within it
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func RegisterFilters(dir string) {
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files, err := ioutil.ReadDir(dir)
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logger.Eexit(err, "could not read from template filters dir '%s'", dir)
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for _, f := range files {
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if !f.IsDir() {
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switch path.Ext(f.Name()) {
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case ".js":
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fileBase := strings.TrimSuffix(f.Name(), ".js")
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jsFile := dir + "/" + f.Name()
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logger.D("trying to register filter from: %s", jsFile)
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/*
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jsStr, err := ioutil.ReadFile(jsFile)
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if err != nil {
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Log.Panicf("could not read '%s': %s", jsFile, err)
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}
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*/
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vm := motto.New()
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fn, err := vm.Run(jsFile)
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logger.Eexit(err, "error in javascript vm for '%s'", jsFile)
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if !fn.IsFunction() {
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logger.E("%s does not contain a function code", jsFile)
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os.Exit(1)
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}
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err = pongo2.RegisterFilter(
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fileBase,
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func(in, param *pongo2.Value) (out *pongo2.Value, erro *pongo2.Error) {
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thisObj, _ := vm.Object("({})")
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var err error
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if mark2web.CurrentContext != nil {
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err = thisObj.Set("context", *mark2web.CurrentContext)
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}
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logger.Perr(err, "could not set context in '%s': %s", jsFile)
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ret, err := fn.Call(thisObj.Value(), in.Interface(), param.Interface())
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logger.Eexit(err, "error in javascript file '%s' while calling returned function", jsFile)
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retGo, err := ret.Export()
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logger.Perr(err, "export error for '%s'", jsFile)
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return pongo2.AsValue(retGo), nil
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},
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)
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logger.Perr(err, "could not register filter from '%s'", jsFile)
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}
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}
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}
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}
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