constellation/hack/bazel-deps-mirror/upgrade.go

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/*
Copyright (c) Edgeless Systems GmbH
SPDX-License-Identifier: AGPL-3.0-only
*/
package main
import (
"context"
"errors"
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"fmt"
"log/slog"
"github.com/bazelbuild/buildtools/build"
"github.com/edgelesssys/constellation/v2/hack/bazel-deps-mirror/internal/bazelfiles"
"github.com/edgelesssys/constellation/v2/hack/bazel-deps-mirror/internal/issues"
"github.com/edgelesssys/constellation/v2/hack/bazel-deps-mirror/internal/mirror"
"github.com/edgelesssys/constellation/v2/hack/bazel-deps-mirror/internal/rules"
"github.com/edgelesssys/constellation/v2/internal/logger"
"github.com/spf13/cobra"
)
func newUpgradeCmd() *cobra.Command {
cmd := &cobra.Command{
Use: "upgrade",
Short: "upgrade all Bazel dependency rules by recalculating expected hashes, uploading artifacts to the mirror (if needed) and formatting the rules.",
RunE: runUpgrade,
}
cmd.Flags().Bool("unauthenticated", false, "Doesn't require authentication to the mirror but cannot upload files.")
cmd.Flags().Bool("dry-run", false, "Don't actually change files or upload anything.")
return cmd
}
func runUpgrade(cmd *cobra.Command, _ []string) error {
flags, err := parseUpgradeFlags(cmd)
if err != nil {
return err
}
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log := logger.NewTextLogger(flags.logLevel)
log.Debug("Using flags", "unauthenticated", flags.unauthenticated, "dryRun", flags.dryRun)
fileHelper, err := bazelfiles.New()
if err != nil {
return err
}
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log.Debug("Searching for Bazel files in the current WORKSPACE and all subdirectories...")
bazelFiles, err := fileHelper.FindFiles()
if err != nil {
return err
}
var mirrorUpload mirrorUploader
switch {
case flags.unauthenticated:
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log.Warn("Upgrading rules without authentication for AWS S3. If artifacts are not yet mirrored, this will fail.")
mirrorUpload = mirror.NewUnauthenticated(flags.mirrorBaseURL, flags.dryRun, log)
default:
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log.Debug("Upgrading rules with authentication for AWS S3.")
mirrorUpload, err = mirror.New(cmd.Context(), flags.region, flags.bucket, flags.mirrorBaseURL, flags.dryRun, log)
if err != nil {
return err
}
}
issues := issues.New()
for _, bazelFile := range bazelFiles {
fileIssues, err := upgradeBazelFile(cmd.Context(), fileHelper, mirrorUpload, bazelFile, flags.dryRun, log)
if err != nil {
return err
}
if len(fileIssues) > 0 {
issues.Set(bazelFile.AbsPath, fileIssues)
}
}
if len(issues) > 0 {
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log.Warn(fmt.Sprintf("Found %d issues in rules", len(issues)))
issues.Report(cmd.OutOrStdout())
return errors.New("found issues in rules")
}
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log.Info("No issues found")
return nil
}
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func upgradeBazelFile(ctx context.Context, fileHelper *bazelfiles.Helper, mirrorUpload mirrorUploader, bazelFile bazelfiles.BazelFile, dryRun bool, log *slog.Logger) (iss issues.ByFile, err error) {
iss = issues.NewByFile()
var changed bool // true if any rule in this file was changed
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log.Info(fmt.Sprintf("Checking file: %s", bazelFile.RelPath))
buildfile, err := fileHelper.LoadFile(bazelFile)
if err != nil {
return iss, err
}
found := rules.Rules(buildfile, rules.SupportedRules)
if len(found) == 0 {
log.Debug(fmt.Sprintf("No rules found in file: %q", bazelFile.RelPath))
return iss, nil
}
log.Debug(fmt.Sprintf("Found %d rules in file: %q", len(found), bazelFile.RelPath))
for _, rule := range found {
changedRule, ruleIssues := upgradeRule(ctx, mirrorUpload, rule, log)
if len(ruleIssues) > 0 {
iss.Add(rule.Name(), ruleIssues...)
}
changed = changed || changedRule
}
if len(iss) > 0 {
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log.Warn(fmt.Sprintf("File %s has issues. Not saving!", bazelFile.RelPath))
return iss, nil
}
if !changed {
log.Debug(fmt.Sprintf("No changes to file: %q", bazelFile.RelPath))
return iss, nil
}
if dryRun {
diff, err := fileHelper.Diff(bazelFile, buildfile)
if err != nil {
return iss, err
}
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log.Info(fmt.Sprintf("Dry run: would save updated file %s with diff:\n%s", bazelFile.RelPath, diff))
return iss, nil
}
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log.Info(fmt.Sprintf("Saving updated file: %s", bazelFile.RelPath))
if err := fileHelper.WriteFile(bazelFile, buildfile); err != nil {
return iss, err
}
return iss, nil
}
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func upgradeRule(ctx context.Context, mirrorUpload mirrorUploader, rule *build.Rule, log *slog.Logger) (changed bool, iss []error) {
log.Debug(fmt.Sprintf("Upgrading rule: %q", rule.Name()))
upstreamURLs, err := rules.UpstreamURLs(rule)
if errors.Is(err, rules.ErrNoUpstreamURL) {
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log.Debug("Rule has no upstream URL. Skipping.")
return false, nil
} else if err != nil {
iss = append(iss, err)
return false, iss
}
// learn the hash of the upstream artifact
learnedHash, learnErr := mirrorUpload.Learn(ctx, upstreamURLs)
if learnErr != nil {
iss = append(iss, learnErr)
return false, iss
}
existingHash, err := rules.GetHash(rule)
if err == nil && learnedHash == existingHash {
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log.Debug("Rule already upgraded. Skipping.")
return false, nil
}
changed, err = rules.PrepareUpgrade(rule)
if err != nil {
iss = append(iss, err)
return changed, iss
}
rules.SetHash(rule, learnedHash)
changed = true
if _, fixErr := fixRule(ctx, mirrorUpload, rule, log); fixErr != nil {
iss = append(iss, fixErr...)
return changed, iss
}
return changed, iss
}
type upgradeFlags struct {
unauthenticated bool
dryRun bool
region string
bucket string
mirrorBaseURL string
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logLevel slog.Level
}
func parseUpgradeFlags(cmd *cobra.Command) (upgradeFlags, error) {
unauthenticated, err := cmd.Flags().GetBool("unauthenticated")
if err != nil {
return upgradeFlags{}, err
}
dryRun, err := cmd.Flags().GetBool("dry-run")
if err != nil {
return upgradeFlags{}, err
}
verbose, err := cmd.Flags().GetBool("verbose")
if err != nil {
return upgradeFlags{}, err
}
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logLevel := slog.LevelInfo
if verbose {
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logLevel = slog.LevelDebug
}
region, err := cmd.Flags().GetString("region")
if err != nil {
return upgradeFlags{}, err
}
bucket, err := cmd.Flags().GetString("bucket")
if err != nil {
return upgradeFlags{}, err
}
mirrorBaseURL, err := cmd.Flags().GetString("mirror-base-url")
if err != nil {
return upgradeFlags{}, err
}
return upgradeFlags{
unauthenticated: unauthenticated,
dryRun: dryRun,
region: region,
bucket: bucket,
mirrorBaseURL: mirrorBaseURL,
logLevel: logLevel,
}, nil
}