versionsapi: implement list cmd in cli

Signed-off-by: Paul Meyer <49727155+katexochen@users.noreply.github.com>
This commit is contained in:
Paul Meyer 2022-12-29 17:48:10 +01:00
parent 777c9406fd
commit 53cc63362f
2 changed files with 206 additions and 0 deletions

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@ -0,0 +1,205 @@
/*
Copyright (c) Edgeless Systems GmbH
SPDX-License-Identifier: AGPL-3.0-only
*/
package main
import (
"context"
"errors"
"fmt"
"github.com/edgelesssys/constellation/v2/internal/logger"
"github.com/edgelesssys/constellation/v2/internal/versionsapi"
verclient "github.com/edgelesssys/constellation/v2/internal/versionsapi/client"
"github.com/rogpeppe/go-internal/semver"
"github.com/spf13/cobra"
"go.uber.org/zap/zapcore"
)
func newListCmd() *cobra.Command {
cmd := &cobra.Command{
Use: "list",
Short: "List versions",
Long: "List all versions of a ref/stream. The returned version are in short format, if --json flag is not set.",
RunE: runList,
Args: cobra.ExactArgs(0),
}
cmd.Flags().String("ref", "-", "Ref to query")
cmd.Flags().String("stream", "stable", "Stream to query")
cmd.Flags().String("minor-version", "", "Minor version to query (format: \"v1.2\")")
cmd.Flags().Bool("json", false, "Whether to output the result as JSON")
return cmd
}
func runList(cmd *cobra.Command, args []string) error {
flags, err := parseListFlags(cmd)
if err != nil {
return err
}
log := logger.New(logger.PlainLog, flags.logLevel)
log.Debugf("Parsed flags: %+v", flags)
log.Debugf("Validating flags.")
if err := flags.validate(); err != nil {
return err
}
log.Debugf("Creating versions API client.")
client, err := verclient.NewClient(cmd.Context(), flags.region, flags.bucket, flags.distributionID, true, log)
if err != nil {
return fmt.Errorf("creating client: %w", err)
}
var minorVersions []string
if flags.minorVersion != "" {
minorVersions = []string{flags.minorVersion}
} else {
log.Debugf("Getting minor versions.")
minorVersions, err = listMinorVersions(cmd.Context(), client, flags.ref, flags.stream)
var errNotFound *verclient.NotFoundError
if err != nil && errors.As(err, &errNotFound) {
log.Infof("No minor versions found for ref %q and stream %q.", flags.ref, flags.stream)
return nil
} else if err != nil {
return err
}
}
log.Debugf("Getting patch versions.")
patchVersions, err := listPatchVersions(cmd.Context(), client, flags.ref, flags.stream, minorVersions)
var errNotFound *verclient.NotFoundError
if err != nil && errors.As(err, &errNotFound) {
log.Infof("No patch versions found for ref %q, stream %q and minor versions %v.", flags.ref, flags.stream, minorVersions)
return nil
} else if err != nil {
return err
}
log.Debugf("Printing versions.")
for _, v := range patchVersions {
fmt.Println(v.ShortPath())
}
return nil
}
func listMinorVersions(ctx context.Context, client *verclient.Client, ref string, stream string) ([]string, error) {
list := versionsapi.List{
Ref: ref,
Stream: stream,
Granularity: versionsapi.GranularityMajor,
Base: "v2",
Kind: versionsapi.VersionKindImage,
}
list, err := client.FetchVersionList(ctx, list)
if err != nil {
return nil, fmt.Errorf("listing minor versions: %w", err)
}
return list.Versions, nil
}
func listPatchVersions(ctx context.Context, client *verclient.Client, ref string, stream string, minorVer []string,
) ([]versionsapi.Version, error) {
var patchVers []versionsapi.Version
list := versionsapi.List{
Ref: ref,
Stream: stream,
Granularity: versionsapi.GranularityMinor,
Kind: versionsapi.VersionKindImage,
}
for _, ver := range minorVer {
list.Base = ver
list, err := client.FetchVersionList(ctx, list)
if err != nil {
return nil, fmt.Errorf("listing patch versions: %w", err)
}
if len(list.Versions) == 0 {
return nil, fmt.Errorf("no versions found")
}
patchVers = append(patchVers, list.StructuredVersions()...)
}
return patchVers, nil
}
type listFlags struct {
ref string
stream string
minorVersion string
region string
bucket string
distributionID string
logLevel zapcore.Level
}
func (l *listFlags) validate() error {
if err := versionsapi.ValidateRef(l.ref); err != nil {
return fmt.Errorf("invalid ref: %w", err)
}
if err := versionsapi.ValidateStream(l.ref, l.stream); err != nil {
return fmt.Errorf("invalid stream: %w", err)
}
if l.minorVersion != "" {
if !semver.IsValid(l.minorVersion) || semver.MajorMinor(l.minorVersion) != l.minorVersion {
return fmt.Errorf("invalid minor version: %q", l.minorVersion)
}
}
return nil
}
func parseListFlags(cmd *cobra.Command) (listFlags, error) {
ref, err := cmd.Flags().GetString("ref")
if err != nil {
return listFlags{}, err
}
ref = versionsapi.CanonicalizeRef(ref)
stream, err := cmd.Flags().GetString("stream")
if err != nil {
return listFlags{}, err
}
minorVersion, err := cmd.Flags().GetString("minor-version")
if err != nil {
return listFlags{}, err
}
region, err := cmd.Flags().GetString("region")
if err != nil {
return listFlags{}, err
}
bucket, err := cmd.Flags().GetString("bucket")
if err != nil {
return listFlags{}, err
}
distributionID, err := cmd.Flags().GetString("distribution-id")
if err != nil {
return listFlags{}, err
}
verbose, err := cmd.Flags().GetBool("verbose")
if err != nil {
return listFlags{}, err
}
logLevel := zapcore.InfoLevel
if verbose {
logLevel = zapcore.DebugLevel
}
return listFlags{
ref: ref,
stream: stream,
minorVersion: minorVersion,
region: region,
bucket: bucket,
distributionID: distributionID,
logLevel: logLevel,
}, nil
}

View File

@ -45,6 +45,7 @@ func newRootCmd() *cobra.Command {
rootCmd.AddCommand(newAddCmd())
rootCmd.AddCommand(newLatestCmd())
rootCmd.AddCommand(newListCmd())
return rootCmd
}