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feat(command): add nirvana command to generate go client (caicloud#212)
* refactor(utils): adjust util directories * refactor(router): export Split() * feat(errors): support external errors * feat(rest): implement basic rest client * feat(api): enhance api tools * feat(cmd): update to satisfy new api package * feat(client): implement golang client generator * feat(golang): generate function name from definition.Summary * fix(project): fix wrong arg in entrypoint * fix(*): fix two minor bugs * fix(comments): fix comments of golang generator
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,116 @@ | ||
| /* | ||
| Copyright 2018 Caicloud Authors | ||
| 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 client | ||
|
|
||
| import ( | ||
| "fmt" | ||
| "io/ioutil" | ||
| "os" | ||
| "path/filepath" | ||
|
|
||
| "github.com/caicloud/nirvana/log" | ||
| "github.com/caicloud/nirvana/utils/builder" | ||
| "github.com/caicloud/nirvana/utils/generators/golang" | ||
| "github.com/caicloud/nirvana/utils/project" | ||
| "github.com/spf13/cobra" | ||
| "github.com/spf13/pflag" | ||
| ) | ||
|
|
||
| func newClientCommand() *cobra.Command { | ||
| options := &clientOptions{} | ||
| cmd := &cobra.Command{ | ||
| Use: "client /path/to/project", | ||
| Short: "Create client for project", | ||
| Long: options.Manuals(), | ||
| Run: func(cmd *cobra.Command, args []string) { | ||
| if err := options.Validate(cmd, args); err != nil { | ||
| log.Fatalln(err) | ||
| } | ||
| if err := options.Run(cmd, args); err != nil { | ||
| log.Fatalln(err) | ||
| } | ||
| }, | ||
| } | ||
| options.Install(cmd.PersistentFlags()) | ||
| return cmd | ||
| } | ||
|
|
||
| type clientOptions struct { | ||
| Output string | ||
| Rest string | ||
| } | ||
|
|
||
| func (o *clientOptions) Install(flags *pflag.FlagSet) { | ||
| flags.StringVar(&o.Output, "output", "", "Output directory for generated client") | ||
| flags.StringVar(&o.Rest, "rest", "github.com/caicloud/nirvana/rest", "Package of rest client") | ||
| } | ||
|
|
||
| func (o *clientOptions) Validate(cmd *cobra.Command, args []string) error { | ||
| if len(args) < 1 { | ||
| return fmt.Errorf("must specify an api directory") | ||
| } | ||
| if o.Output == "" { | ||
| return fmt.Errorf("must specify generated client path") | ||
| } | ||
| return nil | ||
| } | ||
|
|
||
| func (o *clientOptions) Run(cmd *cobra.Command, args []string) error { | ||
| builder := builder.NewAPIBuilder(project.Subdirectories(false, args...)...) | ||
| definitions, err := builder.Build() | ||
| if err != nil { | ||
| return err | ||
| } | ||
| config := &project.Config{} | ||
| for _, path := range args { | ||
| config, err = project.LoadDefaultProjectFile(path) | ||
| if err == nil { | ||
| break | ||
| } | ||
| } | ||
| if err != nil { | ||
| log.Warning("can't find project file, use empty config as instead") | ||
| } | ||
| pkg, err := project.PackageForPath(o.Output) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| generator := golang.NewGenerator(config, definitions, o.Rest, pkg) | ||
| files, err := generator.Generate() | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
|
||
| for path, data := range files { | ||
| path = filepath.Join(o.Output, path+".go") | ||
| dir := filepath.Dir(path) | ||
| _, err := os.Stat(dir) | ||
| if os.IsNotExist(err) { | ||
| if err := os.MkdirAll(dir, 0775); err != nil { | ||
| return fmt.Errorf("can't create directory %s: %v", dir, err) | ||
| } | ||
| } | ||
| if err := ioutil.WriteFile(path, data, 0664); err != nil { | ||
| return err | ||
| } | ||
| } | ||
| return nil | ||
| } | ||
|
|
||
| func (o *clientOptions) Manuals() string { | ||
| return "" | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,24 @@ | ||
| /* | ||
| Copyright 2018 Caicloud Authors | ||
| 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 client | ||
|
|
||
| import "github.com/spf13/cobra" | ||
|
|
||
| // Register registers all commands. | ||
| func Register(root *cobra.Command) { | ||
| root.AddCommand(newClientCommand()) | ||
| } |
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