| /* |
| Licensed to the Apache Software Foundation (ASF) under one or more |
| contributor license agreements. See the NOTICE file distributed with |
| this work for additional information regarding copyright ownership. |
| The ASF licenses this file to You 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 deploy |
| |
| import ( |
| "bytes" |
| "io/ioutil" |
| "strings" |
| "text/template" |
| |
| "github.com/apache/camel-k/pkg/util/log" |
| ) |
| |
| // ResourceAsString returns the named resource content as string |
| func ResourceAsString(name string) string { |
| return string(Resource(name)) |
| } |
| |
| // Resource provides an easy access to embedded assets |
| func Resource(name string) []byte { |
| name = strings.Trim(name, " ") |
| if !strings.HasPrefix(name, "/") { |
| name = "/" + name |
| } |
| |
| file, err := assets.Open(name) |
| if err != nil { |
| log.Error(err, "cannot access resource file", "file", name) |
| return nil |
| } |
| defer file.Close() |
| |
| data, err := ioutil.ReadAll(file) |
| if err != nil { |
| log.Error(err, "error while reading resource file", "file", name) |
| return nil |
| } |
| return data |
| } |
| |
| // TemplateResource loads a file resource as go template and processes it using the given parameters |
| func TemplateResource(name string, params interface{}) (string, error) { |
| rawData := ResourceAsString(name) |
| if rawData == "" { |
| return "", nil |
| } |
| tmpl, err := template.New(name).Parse(rawData) |
| if err != nil { |
| return "", err |
| } |
| |
| var buf bytes.Buffer |
| if err := tmpl.Execute(&buf, params); err != nil { |
| return "", err |
| } |
| return buf.String(), nil |
| } |
| |
| // Resources lists all file names in the given path (starts with '/') |
| func Resources(dirName string) []string { |
| dir, err := assets.Open(dirName) |
| if err != nil { |
| log.Error(err, "error while listing resource files", "dir", dirName) |
| return nil |
| } |
| defer dir.Close() |
| info, err := dir.Stat() |
| if err != nil { |
| log.Error(err, "error while doing stat on directory", "dir", dirName) |
| return nil |
| } |
| if !info.IsDir() { |
| log.Error(err, "location is not a directory", "dir", dirName) |
| return nil |
| } |
| files, err := dir.Readdir(-1) |
| if err != nil { |
| log.Error(err, "error while listing files on directory", "dir", dirName) |
| return nil |
| } |
| var res []string |
| for _, f := range files { |
| if !f.IsDir() { |
| res = append(res, f.Name()) |
| } |
| } |
| return res |
| } |