| /* |
| 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 cmd |
| |
| import ( |
| "fmt" |
| "os" |
| "path/filepath" |
| "strings" |
| "text/template" |
| |
| "github.com/apache/camel-k/pkg/util" |
| |
| v1 "github.com/apache/camel-k/pkg/apis/camel/v1" |
| "github.com/apache/camel-k/pkg/resources" |
| "github.com/spf13/cobra" |
| ) |
| |
| func newCmdInit(rootCmdOptions *RootCmdOptions) (*cobra.Command, *initCmdOptions) { |
| options := initCmdOptions{ |
| RootCmdOptions: rootCmdOptions, |
| } |
| cmd := cobra.Command{ |
| Use: "init [flags] IntegrationFile.java", |
| Short: "Initialize empty Camel K files", |
| Long: `Initialize empty Camel K integrations and other resources.`, |
| PreRunE: decode(&options), |
| RunE: func(cmd *cobra.Command, args []string) error { |
| if err := options.validate(cmd, args); err != nil { |
| return err |
| } |
| if err := options.init(cmd, args); err != nil { |
| return err |
| } |
| return nil |
| }, |
| Annotations: map[string]string{ |
| offlineCommandLabel: "true", |
| }, |
| } |
| |
| return &cmd, &options |
| } |
| |
| type initCmdOptions struct { |
| *RootCmdOptions |
| } |
| |
| func (o *initCmdOptions) validate(_ *cobra.Command, args []string) error { |
| if len(args) != 1 { |
| return fmt.Errorf("init expects exactly 1 argument, received %d", len(args)) |
| } |
| |
| fileName := args[0] |
| if o.extractLanguage(fileName) == nil { |
| return fmt.Errorf("unsupported file type: %s", fileName) |
| } |
| |
| return nil |
| } |
| |
| func (o *initCmdOptions) init(_ *cobra.Command, args []string) error { |
| fileName := args[0] |
| language := o.extractLanguage(fileName) |
| return o.writeFromTemplate(*language, fileName) |
| } |
| |
| func (o *initCmdOptions) writeFromTemplate(language v1.Language, fileName string) error { |
| simpleName := filepath.Base(fileName) |
| if idx := strings.Index(simpleName, "."); idx >= 0 { |
| simpleName = simpleName[:idx] |
| } |
| |
| type TemplateParameters struct { |
| Name string |
| } |
| params := TemplateParameters{ |
| Name: simpleName, |
| } |
| |
| rawData, err := resources.ResourceAsString(fmt.Sprintf("/templates/%s.tmpl", language)) |
| if err != nil { |
| return err |
| } |
| if rawData == "" { |
| return fmt.Errorf("cannot find template for language %s", string(language)) |
| } |
| tmpl, err := template.New(string(language)).Parse(rawData) |
| if err != nil { |
| return err |
| } |
| |
| return util.WithFile(fileName, os.O_RDWR|os.O_CREATE, 0o644, func(file *os.File) error { |
| return tmpl.Execute(file, params) |
| }) |
| } |
| |
| func (o *initCmdOptions) extractLanguage(fileName string) *v1.Language { |
| if strings.HasSuffix(fileName, ".kamelet.yaml") { |
| language := v1.LanguageKamelet |
| return &language |
| } |
| for _, l := range v1.Languages { |
| if strings.HasSuffix(fileName, fmt.Sprintf(".%s", string(l))) { |
| return &l |
| } |
| } |
| return nil |
| } |