73 lines
1.9 KiB
Go
73 lines
1.9 KiB
Go
// Copyright 2018 Drone.IO Inc
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
package template
|
|
|
|
import (
|
|
"fmt"
|
|
"io/ioutil"
|
|
"net/http"
|
|
"net/url"
|
|
"strings"
|
|
|
|
"github.com/aymerick/raymond"
|
|
)
|
|
|
|
// Render parses and executes a template, returning the results in string
|
|
// format. Trailing or leading spaces or new-lines are not getting truncated. It
|
|
// is able to read templates from remote paths, local files or directly from the
|
|
// string.
|
|
func Render(template string, payload interface{}) (s string, err error) {
|
|
u, err := url.Parse(template)
|
|
|
|
if err == nil {
|
|
switch u.Scheme {
|
|
case "http", "https":
|
|
res, err := http.Get(template)
|
|
|
|
if err != nil {
|
|
return s, fmt.Errorf("failed to fetch: %w", err)
|
|
}
|
|
|
|
defer res.Body.Close()
|
|
|
|
out, err := ioutil.ReadAll(res.Body)
|
|
|
|
if err != nil {
|
|
return s, fmt.Errorf("failed to read: %w", err)
|
|
}
|
|
|
|
template = string(out)
|
|
case "file":
|
|
out, err := ioutil.ReadFile(u.Path)
|
|
|
|
if err != nil {
|
|
return s, fmt.Errorf("failed to read: %w", err)
|
|
}
|
|
|
|
template = string(out)
|
|
}
|
|
}
|
|
|
|
return raymond.Render(template, payload)
|
|
}
|
|
|
|
// RenderTrim parses and executes a template, returning the results in string
|
|
// format. The result is trimmed to remove left and right padding and newlines
|
|
// that may be added unintentially in the template markup.
|
|
func RenderTrim(template string, playload interface{}) (string, error) {
|
|
out, err := Render(template, playload)
|
|
return strings.Trim(out, " \n"), err
|
|
}
|