mirror of https://github.com/buildpacks/pack.git
66 lines
2.0 KiB
Go
66 lines
2.0 KiB
Go
package client
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import (
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"context"
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"fmt"
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"github.com/pkg/errors"
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"github.com/buildpacks/pack/internal/style"
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"github.com/buildpacks/pack/pkg/buildpack"
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"github.com/buildpacks/pack/pkg/dist"
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"github.com/buildpacks/pack/pkg/image"
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)
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// PullBuildpackOptions are options available for PullBuildpack
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type PullBuildpackOptions struct {
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// URI of the buildpack to retrieve.
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URI string
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// RegistryName to search for buildpacks from.
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RegistryName string
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// RelativeBaseDir to resolve relative assests from.
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RelativeBaseDir string
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}
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// PullBuildpack pulls given buildpack to be stored locally
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func (c *Client) PullBuildpack(ctx context.Context, opts PullBuildpackOptions) error {
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locatorType, err := buildpack.GetLocatorType(opts.URI, "", []dist.ModuleInfo{})
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if err != nil {
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return err
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}
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switch locatorType {
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case buildpack.PackageLocator:
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imageName := buildpack.ParsePackageLocator(opts.URI)
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c.logger.Debugf("Pulling buildpack from image: %s", imageName)
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_, err = c.imageFetcher.Fetch(ctx, imageName, image.FetchOptions{Daemon: true, PullPolicy: image.PullAlways})
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if err != nil {
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return errors.Wrapf(err, "fetching image %s", style.Symbol(opts.URI))
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}
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case buildpack.RegistryLocator:
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c.logger.Debugf("Pulling buildpack from registry: %s", style.Symbol(opts.URI))
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registryCache, err := getRegistry(c.logger, opts.RegistryName)
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if err != nil {
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return errors.Wrapf(err, "invalid registry '%s'", opts.RegistryName)
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}
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registryBp, err := registryCache.LocateBuildpack(opts.URI)
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if err != nil {
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return errors.Wrapf(err, "locating in registry %s", style.Symbol(opts.URI))
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}
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_, err = c.imageFetcher.Fetch(ctx, registryBp.Address, image.FetchOptions{Daemon: true, PullPolicy: image.PullAlways})
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if err != nil {
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return errors.Wrapf(err, "fetching image %s", style.Symbol(opts.URI))
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}
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case buildpack.InvalidLocator:
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return fmt.Errorf("invalid buildpack URI %s", style.Symbol(opts.URI))
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default:
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return fmt.Errorf("unsupported buildpack URI type: %s", style.Symbol(locatorType.String()))
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}
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return nil
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}
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