ceph-csi/vendor/sigs.k8s.io/kustomize/pkg/commands/build/build.go
Madhu Rajanna d300da19b7 vendor update for E2E framework
Signed-off-by: Madhu Rajanna <madhupr007@gmail.com>
2019-06-04 11:39:42 +05:30

130 lines
3.2 KiB
Go

/*
Copyright 2017 The Kubernetes 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 build
import (
"io"
"github.com/pkg/errors"
"github.com/spf13/cobra"
"sigs.k8s.io/kustomize/pkg/constants"
"sigs.k8s.io/kustomize/pkg/fs"
"sigs.k8s.io/kustomize/pkg/ifc/transformer"
"sigs.k8s.io/kustomize/pkg/loader"
"sigs.k8s.io/kustomize/pkg/resmap"
"sigs.k8s.io/kustomize/pkg/target"
)
// Options contain the options for running a build
type Options struct {
kustomizationPath string
outputPath string
}
// NewOptions creates a Options object
func NewOptions(p, o string) *Options {
return &Options{
kustomizationPath: p,
outputPath: o,
}
}
var examples = `
Use the file somedir/kustomization.yaml to generate a set of api resources:
build somedir
Use a url pointing to a remote directory/kustomization.yaml to generate a set of api resources:
build url
The url should follow hashicorp/go-getter URL format described in
https://github.com/hashicorp/go-getter#url-format
url examples:
sigs.k8s.io/kustomize//examples/multibases?ref=v1.0.6
github.com/Liujingfang1/mysql
github.com/Liujingfang1/kustomize//examples/helloWorld?ref=repoUrl2
`
// NewCmdBuild creates a new build command.
func NewCmdBuild(
out io.Writer, fs fs.FileSystem,
rf *resmap.Factory,
ptf transformer.Factory) *cobra.Command {
var o Options
cmd := &cobra.Command{
Use: "build [path]",
Short: "Print current configuration per contents of " + constants.KustomizationFileNames[0],
Example: examples,
SilenceUsage: true,
RunE: func(cmd *cobra.Command, args []string) error {
err := o.Validate(args)
if err != nil {
return err
}
return o.RunBuild(out, fs, rf, ptf)
},
}
cmd.Flags().StringVarP(
&o.outputPath,
"output", "o", "",
"If specified, write the build output to this path.")
return cmd
}
// Validate validates build command.
func (o *Options) Validate(args []string) error {
if len(args) > 1 {
return errors.New("specify one path to " + constants.KustomizationFileNames[0])
}
if len(args) == 0 {
o.kustomizationPath = "./"
} else {
o.kustomizationPath = args[0]
}
return nil
}
// RunBuild runs build command.
func (o *Options) RunBuild(
out io.Writer, fSys fs.FileSystem,
rf *resmap.Factory, ptf transformer.Factory) error {
ldr, err := loader.NewLoader(o.kustomizationPath, fSys)
if err != nil {
return err
}
defer ldr.Cleanup()
kt, err := target.NewKustTarget(ldr, rf, ptf)
if err != nil {
return err
}
allResources, err := kt.MakeCustomizedResMap()
if err != nil {
return err
}
// Output the objects.
res, err := allResources.EncodeAsYaml()
if err != nil {
return err
}
if o.outputPath != "" {
return fSys.WriteFile(o.outputPath, res)
}
_, err = out.Write(res)
return err
}