Support specifing sparseCheckout in flux bootstrap

Signed-off-by: piny940 <83708535+piny940@users.noreply.github.com>
Assisted-by: claude/opus-4.7

cmd/flux/bootstrap.go

@@ -47,6 +47,7 @@ type bootstrapFlags struct {
 
 	branch            string
 	recurseSubmodules bool
+	sparseCheckout    []string
 	manifestsPath     string
 
 	defaultComponents  []string
@@ -109,6 +110,8 @@ func init() {
 	bootstrapCmd.PersistentFlags().StringVar(&bootstrapArgs.branch, "branch", bootstrapDefaultBranch, "Git branch")
 	bootstrapCmd.PersistentFlags().BoolVar(&bootstrapArgs.recurseSubmodules, "recurse-submodules", false,
 		"when enabled, configures the GitRepository source to initialize and include Git submodules in the artifact it produces")
+	bootstrapCmd.PersistentFlags().StringSliceVar(&bootstrapArgs.sparseCheckout, "sparse-checkout", nil,
+		"list of directories to be included in the GitRepository sparse checkout, the configured --path must be one of them, accepts comma-separated values")
 
 	bootstrapCmd.PersistentFlags().StringVar(&bootstrapArgs.manifestsPath, "manifests", "", "path to the manifest directory")
 

cmd/flux/bootstrap_bitbucket_server.go

@@ -253,6 +253,7 @@ func bootstrapBServerCmdRun(cmd *cobra.Command, args []string) error {
 		TargetPath:        bServerArgs.path.ToSlash(),
 		ManifestFile:      sync.MakeDefaultOptions().ManifestFile,
 		RecurseSubmodules: bootstrapArgs.recurseSubmodules,
+		SparseCheckout:    bootstrapArgs.sparseCheckout,
 	}
 
 	entityList, err := bootstrap.LoadEntityListFromPath(bootstrapArgs.gpgKeyRingPath)

cmd/flux/bootstrap_git.go

@@ -311,6 +311,7 @@ func bootstrapGitCmdRun(cmd *cobra.Command, args []string) error {
 		TargetPath:        gitArgs.path.ToSlash(),
 		ManifestFile:      sync.MakeDefaultOptions().ManifestFile,
 		RecurseSubmodules: bootstrapArgs.recurseSubmodules,
+		SparseCheckout:    bootstrapArgs.sparseCheckout,
 	}
 	if gitProvider != "" {
 		syncOpts.Provider = gitProvider

cmd/flux/bootstrap_gitea.go

@@ -232,6 +232,7 @@ func bootstrapGiteaCmdRun(cmd *cobra.Command, args []string) error {
 		TargetPath:        giteaArgs.path.ToSlash(),
 		ManifestFile:      sync.MakeDefaultOptions().ManifestFile,
 		RecurseSubmodules: bootstrapArgs.recurseSubmodules,
+		SparseCheckout:    bootstrapArgs.sparseCheckout,
 	}
 
 	entityList, err := bootstrap.LoadEntityListFromPath(bootstrapArgs.gpgKeyRingPath)

cmd/flux/bootstrap_github.go

@@ -239,6 +239,7 @@ func bootstrapGitHubCmdRun(cmd *cobra.Command, args []string) error {
 		TargetPath:        githubArgs.path.ToSlash(),
 		ManifestFile:      sync.MakeDefaultOptions().ManifestFile,
 		RecurseSubmodules: bootstrapArgs.recurseSubmodules,
+		SparseCheckout:    bootstrapArgs.sparseCheckout,
 	}
 
 	entityList, err := bootstrap.LoadEntityListFromPath(bootstrapArgs.gpgKeyRingPath)

cmd/flux/bootstrap_gitlab.go

@@ -287,6 +287,7 @@ func bootstrapGitLabCmdRun(cmd *cobra.Command, args []string) error {
 		TargetPath:        gitlabArgs.path.ToSlash(),
 		ManifestFile:      sync.MakeDefaultOptions().ManifestFile,
 		RecurseSubmodules: bootstrapArgs.recurseSubmodules,
+		SparseCheckout:    bootstrapArgs.sparseCheckout,
 	}
 
 	entityList, err := bootstrap.LoadEntityListFromPath(bootstrapArgs.gpgKeyRingPath)

pkg/manifestgen/sync/options.go

@@ -34,6 +34,7 @@ type Options struct {
 	ManifestFile      string
 	RecurseSubmodules bool
 	Provider          string
+	SparseCheckout    []string
 }
 
 func MakeDefaultOptions() Options {

pkg/manifestgen/sync/sync.go

@@ -69,6 +69,7 @@ func Generate(options Options) (*manifestgen.Manifest, error) {
 			},
 			RecurseSubmodules: options.RecurseSubmodules,
 			Provider:          options.Provider,
+			SparseCheckout:    options.SparseCheckout,
 		},
 	}