Put potentially destructive reconcile behind flag

The behavior introduced during the introduction of go-git-providers
was more strict, and has proven pretty quickly to not be useful to
all users. Therefore, the reconciliation behavior for repository
configuration has been put behind an opt-in flag, so that it does
not overwrite people their configs by accident.

Signed-off-by: Hidde Beydals <hello@hidde.co>

cmd/flux/bootstrap_github.go

@@ -80,6 +80,7 @@ type githubFlags struct {
 	path         flags.SafeRelativePath
 	teams        []string
 	readWriteKey bool
+	reconcile    bool
 }
 
 const (
@@ -100,6 +101,7 @@ func init() {
 	bootstrapGitHubCmd.Flags().StringVar(&githubArgs.hostname, "hostname", ghDefaultDomain, "GitHub hostname")
 	bootstrapGitHubCmd.Flags().Var(&githubArgs.path, "path", "path relative to the repository root, when specified the cluster sync will be scoped to this path")
 	bootstrapGitHubCmd.Flags().BoolVar(&githubArgs.readWriteKey, "read-write-key", false, "if true, the deploy key is configured with read/write permissions")
+	bootstrapGitHubCmd.Flags().BoolVar(&githubArgs.reconcile, "reconcile", false, "if true, the configured options are also reconciled if the repository already exists")
 
 	bootstrapCmd.AddCommand(bootstrapGitHubCmd)
 }
@@ -235,6 +237,9 @@ func bootstrapGitHubCmdRun(cmd *cobra.Command, args []string) error {
 	if !githubArgs.private {
 		bootstrapOpts = append(bootstrapOpts, bootstrap.WithProviderRepositoryConfig("", "", "public"))
 	}
+	if githubArgs.reconcile {
+		bootstrapOpts = append(bootstrapOpts, bootstrap.WithReconcile())
+	}
 
 	// Setup bootstrapper with constructed configs
 	b, err := bootstrap.NewGitProviderBootstrapper(gitClient, providerClient, kubeClient, bootstrapOpts...)

cmd/flux/bootstrap_gitlab.go

@@ -86,6 +86,7 @@ type gitlabFlags struct {
 	path         flags.SafeRelativePath
 	teams        []string
 	readWriteKey bool
+	reconcile    bool
 }
 
 var gitlabArgs gitlabFlags
@@ -100,6 +101,7 @@ func init() {
 	bootstrapGitLabCmd.Flags().StringVar(&gitlabArgs.hostname, "hostname", glDefaultDomain, "GitLab hostname")
 	bootstrapGitLabCmd.Flags().Var(&gitlabArgs.path, "path", "path relative to the repository root, when specified the cluster sync will be scoped to this path")
 	bootstrapGitLabCmd.Flags().BoolVar(&gitlabArgs.readWriteKey, "read-write-key", false, "if true, the deploy key is configured with read/write permissions")
+	bootstrapGitLabCmd.Flags().BoolVar(&gitlabArgs.reconcile, "reconcile", false, "if true, the configured options are also reconciled if the repository already exists")
 
 	bootstrapCmd.AddCommand(bootstrapGitLabCmd)
 }
@@ -251,6 +253,9 @@ func bootstrapGitLabCmdRun(cmd *cobra.Command, args []string) error {
 	if !gitlabArgs.private {
 		bootstrapOpts = append(bootstrapOpts, bootstrap.WithProviderRepositoryConfig("", "", "public"))
 	}
+	if gitlabArgs.reconcile {
+		bootstrapOpts = append(bootstrapOpts, bootstrap.WithReconcile())
+	}
 
 	// Setup bootstrapper with constructed configs
 	b, err := bootstrap.NewGitProviderBootstrapper(gitClient, providerClient, kubeClient, bootstrapOpts...)

docs/cmd/flux_bootstrap_github.md

@@ -56,6 +56,7 @@ flux bootstrap github [flags]
       --personal                if true, the owner is assumed to be a GitHub user; otherwise an org
       --private                 if true, the repository is setup or configured as private (default true)
       --read-write-key          if true, the deploy key is configured with read/write permissions
+      --reconcile               if true, the configured options are also reconciled if the repository already exists
       --repository string       GitHub repository name
       --team stringArray        GitHub team to be given maintainer access
 ```

docs/cmd/flux_bootstrap_gitlab.md

@@ -53,6 +53,7 @@ flux bootstrap gitlab [flags]
       --personal                if true, the owner is assumed to be a GitLab user; otherwise a group
       --private                 if true, the repository is setup or configured as private (default true)
       --read-write-key          if true, the deploy key is configured with read/write permissions
+      --reconcile               if true, the configured options are also reconciled if the repository already exists
       --repository string       GitLab repository name
       --team stringArray        GitLab teams to be given maintainer access
 ```

internal/bootstrap/bootstrap_provider.go

@@ -45,6 +45,8 @@ type GitProviderBootstrapper struct {
 	defaultBranch string
 	visibility    string
 
+	reconcile bool
+
 	teams map[string]string
 
 	readWriteKey bool
@@ -168,6 +170,16 @@ func (o sshHostnameOption) applyGitProvider(b *GitProviderBootstrapper) {
 	b.sshHostname = string(o)
 }
 
+func WithReconcile() GitProviderOption {
+	return reconcileOption(true)
+}
+
+type reconcileOption bool
+
+func (o reconcileOption) applyGitProvider(b *GitProviderBootstrapper) {
+	b.reconcile = true
+}
+
 func (b *GitProviderBootstrapper) ReconcileSyncConfig(ctx context.Context, options sync.Options) error {
 	repo, err := b.getRepository(ctx)
 	if err != nil {
@@ -279,10 +291,11 @@ func (b *GitProviderBootstrapper) reconcileOrgRepository(ctx context.Context) (g
 		b.logger.Successf("repository %q created", repoRef.String())
 	}
 
+	var changed bool
+	if b.reconcile {
 		// Set default branch before calling Reconcile due to bug described
 		// above.
 		repoInfo.DefaultBranch = repo.Get().DefaultBranch
-	var changed bool
 		if err = retry(1, 2*time.Second, func() (err error) {
 			repo, changed, err = b.provider.OrgRepositories().Reconcile(ctx, repoRef, repoInfo)
 			return
@@ -292,6 +305,7 @@ func (b *GitProviderBootstrapper) reconcileOrgRepository(ctx context.Context) (g
 		if changed {
 			b.logger.Successf("repository %q reconciled", repoRef.String())
 		}
+	}
 
 	// Build the team access config
 	teamAccessInfo, err := buildTeamAccessInfo(b.teams, gitprovider.RepositoryPermissionVar(gitprovider.RepositoryPermissionMaintain))
@@ -343,15 +357,14 @@ func (b *GitProviderBootstrapper) reconcileUserRepository(ctx context.Context) (
 		// of the available Reconcile methods, and setting e.g. the default
 		// branch correctly. Resort to Create with AutoInit until this has
 		// been resolved.
-		repo, err = b.provider.UserRepositories().Create(ctx, repoRef, repoInfo, &gitprovider.RepositoryCreateOptions{
-			AutoInit: gitprovider.BoolVar(true),
-		})
+		repo, err = b.provider.UserRepositories().Create(ctx, repoRef, repoInfo, &gitprovider.RepositoryCreateOptions{})
 		if err != nil {
 			return nil, fmt.Errorf("failed to create new Git repository %q: %w", repoRef.String(), err)
 		}
 		b.logger.Successf("repository %q created", repoRef.String())
 	}
 
+	if b.reconcile {
 		// Set default branch before calling Reconcile due to bug described
 		// above.
 		repoInfo.DefaultBranch = repo.Get().DefaultBranch
@@ -365,6 +378,7 @@ func (b *GitProviderBootstrapper) reconcileUserRepository(ctx context.Context) (
 		if changed {
 			b.logger.Successf("repository %q reconciled", repoRef.String())
 		}
+	}
 
 	return repo, nil
 }