mirror of https://github.com/docker/cli.git
75 lines
2.1 KiB
Go
75 lines
2.1 KiB
Go
// FIXME(thaJeztah): remove once we are a module; the go:build directive prevents go from downgrading language version to go1.16:
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//go:build go1.19
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package idresolver
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import (
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"context"
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"github.com/docker/docker/api/types"
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"github.com/docker/docker/api/types/swarm"
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"github.com/docker/docker/client"
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"github.com/pkg/errors"
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)
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// IDResolver provides ID to Name resolution.
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type IDResolver struct {
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client client.APIClient
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noResolve bool
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cache map[string]string
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}
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// New creates a new IDResolver.
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func New(apiClient client.APIClient, noResolve bool) *IDResolver {
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return &IDResolver{
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client: apiClient,
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noResolve: noResolve,
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cache: make(map[string]string),
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}
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}
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func (r *IDResolver) get(ctx context.Context, t any, id string) (string, error) {
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switch t.(type) {
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case swarm.Node:
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node, _, err := r.client.NodeInspectWithRaw(ctx, id)
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if err != nil {
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// TODO(thaJeztah): should error-handling be more specific, or is it ok to ignore any error?
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return id, nil //nolint:nilerr // ignore nil-error being returned, as this is a best-effort.
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}
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if node.Spec.Annotations.Name != "" {
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return node.Spec.Annotations.Name, nil
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}
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if node.Description.Hostname != "" {
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return node.Description.Hostname, nil
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}
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return id, nil
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case swarm.Service:
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service, _, err := r.client.ServiceInspectWithRaw(ctx, id, types.ServiceInspectOptions{})
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if err != nil {
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// TODO(thaJeztah): should error-handling be more specific, or is it ok to ignore any error?
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return id, nil //nolint:nilerr // ignore nil-error being returned, as this is a best-effort.
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}
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return service.Spec.Annotations.Name, nil
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default:
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return "", errors.Errorf("unsupported type")
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}
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}
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// Resolve will attempt to resolve an ID to a Name by querying the manager.
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// Results are stored into a cache.
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// If the `-n` flag is used in the command-line, resolution is disabled.
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func (r *IDResolver) Resolve(ctx context.Context, t any, id string) (string, error) {
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if r.noResolve {
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return id, nil
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}
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if name, ok := r.cache[id]; ok {
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return name, nil
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}
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name, err := r.get(ctx, t, id)
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if err != nil {
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return "", err
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}
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r.cache[id] = name
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return name, nil
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}
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