mirror of https://github.com/knative/func.git
70 lines
1.4 KiB
Go
70 lines
1.4 KiB
Go
package buildpacks
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import (
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"bytes"
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"context"
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"errors"
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"fmt"
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"io"
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"os"
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"github.com/buildpacks/pack"
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"github.com/buildpacks/pack/logging"
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)
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type Builder struct {
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Verbose bool
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registry string
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namespace string
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}
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func NewBuilder(registry, namespace string) *Builder {
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return &Builder{registry: registry, namespace: namespace}
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}
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var runtime2pack = map[string]string{
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"quarkus": "quay.io/boson/faas-quarkus-builder",
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"node": "quay.io/boson/faas-nodejs-builder",
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"go": "quay.io/boson/faas-go-builder",
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}
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func (builder *Builder) Build(name, runtime, path string) (image string, err error) {
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registry := fmt.Sprintf("%s/%s", builder.registry, builder.namespace)
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image = fmt.Sprintf("%s/%s", registry, name)
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packBuilder, ok := runtime2pack[runtime]
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if !ok {
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err = errors.New(fmt.Sprint("unsupported runtime: ", runtime))
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return
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}
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var logWriter io.Writer
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if builder.Verbose {
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logWriter = os.Stdout
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} else {
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logWriter = &bytes.Buffer{}
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}
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logger := logging.New(logWriter)
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packClient, err := pack.NewClient(pack.WithLogger(logger))
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if err != nil {
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return
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}
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packOpts := pack.BuildOptions{
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AppPath: path,
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Image: image,
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Builder: packBuilder,
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Registry: registry,
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}
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err = packClient.Build(context.Background(), packOpts)
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if err != nil {
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if !builder.Verbose {
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err = fmt.Errorf("%v\noutput: %s\n", err, logWriter.(*bytes.Buffer).String())
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}
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}
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return
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}
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