func writeTmpl(tmpl *template.Template, vmConfigs []vm) {
file, err := os.Create(tmpl.Name())
checkError(err)
defer file.Close()
err = tmpl.Execute(file, vmConfigs)
checkError(err)
}
func (t *Repository) addDependencies(templ *template.Template) (*template.Template, error) {
name := templ.Name()
deps := t.flattenDependencies(templ, nil)
for dep := range deps {
if dep == "" {
continue
}
tt := templ.Lookup(dep)
// Check if we have it
if tt == nil {
tt = t.templates[dep]
// Still dont have it return an error
if tt == nil {
return templ, fmt.Errorf("Could not find template %s", dep)
}
var err error
// Add it to the parse tree
templ, err = templ.AddParseTree(dep, tt.Tree)
if err != nil {
return templ, fmt.Errorf("Dependency Error: %v", err)
}
}
}
return templ.Lookup(name), nil
}
func parseEventListenerTemplates() {
var templ *template.Template
eventListenersStore = make(map[string]*template.Template)
templ = template.Must(template.New("clickEventListener").Parse(clickEventListenerTpl))
eventListenersStore[templ.Name()] = templ
templ = template.Must(template.New("submitEventListener").Parse(submitEventListenerTpl))
eventListenersStore[templ.Name()] = templ
}
// applyTemplateToResponseWriter uses an http.ResponseWriter as the io.Writer
// for the call to template.Execute. It uses an io.Writer wrapper to capture
// errors from the underlying http.ResponseWriter. Errors are logged only when
// they come from the template processing and not the Writer; this avoid
// polluting log files with error messages due to networking issues, such as
// client disconnects and http HEAD protocol violations.
func applyTemplateToResponseWriter(rw http.ResponseWriter, t *template.Template, data interface{}) {
w := &writerCapturesErr{w: rw}
err := t.Execute(w, data)
// There are some cases where template.Execute does not return an error when
// rw returns an error, and some where it does. So check w.err first.
if w.err == nil && err != nil {
// Log template errors.
log.Printf("%s.Execute: %s", t.Name(), err)
}
}
func (s *server) listHandler(t *template.Template) http.HandlerFunc {
return func(w http.ResponseWriter, r *http.Request) {
if err := t.Execute(w, s); err != nil {
log.Printf("error executing template %s: %v", t.Name(), err)
w.WriteHeader(500)
w.Write([]byte(err.Error()))
return
}
}
}
func renderTemplate(w http.ResponseWriter, tmpl *template.Template, data interface{}) error {
wr := &writeRecorder{w: w}
if err := tmpl.Execute(wr, data); err != nil {
if !wr.wrote {
// TODO(ericchiang): replace with better internal server error.
http.Error(w, "Internal server error", http.StatusInternalServerError)
}
return fmt.Errorf("Error rendering template %s: %s", tmpl.Name(), err)
}
return nil
}
func renderCode(fullpath string, tmpl *template.Template, context interface{}) (fb []byte, err error) {
targetBuf := bytes.Buffer{}
err = tmpl.Execute(&targetBuf, context)
if err != nil {
return nil, fmt.Errorf("Problem rendering %s : %v", tmpl.Name(), err)
}
fb, err = imports.Process(fullpath, targetBuf.Bytes(), nil)
if err != nil {
return targetBuf.Bytes(), fmt.Errorf("Problem formatting %s : %v\n%s", tmpl.Name(), err, targetBuf.Bytes())
}
return fb, err
}
// Parse parses declared templates.
func Parse(t *template.Template) (*template.Template, error) {
for name, s := range templates {
var tmpl *template.Template
if t == nil {
t = template.New(name)
}
if name == t.Name() {
tmpl = t
} else {
tmpl = t.New(name)
}
if _, err := tmpl.Parse(s); err != nil {
return nil, err
}
}
return t, nil
}
// computeOutCtx takes a template and its start context and computes the output
// context while storing any inferences in e.
func (e *escaper) computeOutCtx(c context, t *template.Template) context {
// Propagate context over the body.
c1, ok := e.escapeTemplateBody(c, t)
if !ok {
// Look for a fixed point by assuming c1 as the output context.
if c2, ok2 := e.escapeTemplateBody(c1, t); ok2 {
c1, ok = c2, true
}
// Use c1 as the error context if neither assumption worked.
}
if !ok && c1.state != stateError {
return context{
state: stateError,
// TODO: Find the first node with a line in t.text.Tree.Root
err: errorf(ErrOutputContext, 0, "cannot compute output context for template %s", t.Name()),
}
}
return c1
}
func lazyInitTemplate() {
webPanelTpl = template.New("")
var tpl *template.Template
// main
tpl = template.Must(template.New("main").Parse(_TPL_PAGE_MAIN))
webPanelTpl.AddParseTree(tpl.Name(), tpl.Tree)
webPanelBuilder[tpl.Name()] = buildMainPageData
// 404
tpl = template.Must(template.New("404").Parse(_TPL_PAGE_404))
webPanelTpl.AddParseTree(tpl.Name(), tpl.Tree)
webPanelBuilder[tpl.Name()] = build404PageData
}
// escapeTemplateBody escapes the given template assuming the given output
// context, and returns the best guess at the output context and whether the
// assumption was correct.
func (e *escaper) escapeTemplateBody(c context, t *template.Template) (context, bool) {
filter := func(e1 *escaper, c1 context) bool {
if c1.state == stateError {
// Do not update the input escaper, e.
return false
}
if !e1.called[t.Name()] {
// If t is not recursively called, then c1 is an
// accurate output context.
return true
}
// c1 is accurate if it matches our assumed output context.
return c.eq(c1)
}
// We need to assume an output context so that recursive template calls
// take the fast path out of escapeTree instead of infinitely recursing.
// Naively assuming that the input context is the same as the output
// works >90% of the time.
e.output[t.Name()] = c
return e.escapeListConditionally(c, t.Tree.Root, filter)
}
//Load templates
func init() {
// Templates = &tst.Trie{}
var templ *tpl.Template
Templates = make(map[string]*tpl.Template)
newTpl = tpl.Must(tpl.New("new.tpl").Parse(newTplString))
Templates[newTpl.Name()] = newTpl
editTpl = tpl.Must(tpl.New("edit.tpl").Parse(editTplString))
Templates[editTpl.Name()] = editTpl
viewTpl = tpl.Must(tpl.New("view.tpl").Parse(viewTplString))
Templates[viewTpl.Name()] = viewTpl
templ = tpl.Must(tpl.New("select.tpl").Parse(selectTplString))
Templates[templ.Name()] = templ
templ = tpl.Must(tpl.New("inputText.tpl").Parse(inputTextTplString))
Templates[templ.Name()] = templ
templ = tpl.Must(tpl.New("fieldset.tpl").Parse("<fieldset>{{.MAP.Content}}</fieldset>"))
Templates[templ.Name()] = templ
templ = tpl.Must(tpl.New("message.tpl").Parse(`<li class="{{.TYPE.Type}}">{{.TYPE.Text}}</li>`))
Templates[templ.Name()] = templ
templ = tpl.Must(tpl.New("messagePanel.tpl").Parse(`<ul id="message" class="panel no-bullet">{{.MAP.Content}}</ul>`))
Templates[templ.Name()] = templ
}
//loadTemplate 加载解析模板
func (d *dynamic) loadTemplate(currDir string) (*template.Template, error) {
if len(d.Template) == 0 {
return nil, fmt.Errorf(ErrorPageNotTemplate)
}
var (
t *template.Template = nil
filePath, fileName, content string
b []byte
err error
)
for _, filename := range d.Template {
filePath = filepath.Join(currDir, filename)
fileName = filepath.Base(filename)
b, err = ioutil.ReadFile(filePath)
if err != nil {
return nil, err
}
content = d.formatTemplate(string(b))
var tmpl *template.Template
if t == nil {
t = template.New(fileName)
}
if fileName == t.Name() {
tmpl = t
} else {
tmpl = t.New(fileName)
}
tmpl.Delims(d.Delims.Left, d.Delims.Right)
tmpl.Funcs(TemplateFuncMap)
_, err = tmpl.Parse(content)
if err != nil {
return nil, err
}
}
return t, nil
}
// runTemplateCommand executes the given template with the given data,
// which generates a command to execute. If exitNonZeroOK is true, no
// error is returned if the exit code is not 0, otherwise an error is
// returned.
func runTemplateCommand(t *template.Template, exitNonZeroOK bool, data interface{}) (
exitCode int, err error,
) {
// Clone the template to ensure the original won't be changed.
cloned, err := t.Clone()
if err != nil {
return -1, errors.Annotatef(err, "cannot clone command template %q", t.Name())
}
var buf bytes.Buffer
if err := cloned.Execute(&buf, data); err != nil {
return -1, errors.Annotatef(err, "cannot execute command template %q", t.Name())
}
command := buf.String()
logger.Debugf("running command %q", command)
result, err := exec.RunCommands(exec.RunParams{Commands: command})
if err != nil {
return -1, errors.Annotatef(err, "cannot run command %q", command)
}
exitCode = result.Code
stdout := string(result.Stdout)
stderr := string(result.Stderr)
logger.Debugf(
"command %q returned code=%d, stdout=%q, stderr=%q",
command, exitCode, stdout, stderr,
)
if exitCode != 0 {
if exitNonZeroOK {
return exitCode, nil
}
return exitCode, errors.Errorf(
"command %q failed with exit code %d",
command, exitCode,
)
}
return 0, nil
}
func renderTemplate(t *template.Template, o *renderOption, w io.Writer) error {
return t.ExecuteTemplate(w, t.Name(), o)
}