feat: Add skaffold inspect command for adding config dependencies

cmd/skaffold/app/cmd/inspect.go

@@ -44,7 +44,7 @@ func NewCmdInspect() *cobra.Command {
 		WithPersistentFlagAdder(cmdInspectFlags).
 		Hidden().
 		WithCommands(cmdModules(), cmdProfiles(), cmdBuildEnv(), cmdTests(), cmdNamespaces(),
-			cmdJobManifestPaths(), cmdExecutionModes())
+			cmdJobManifestPaths(), cmdExecutionModes(), cmdConfigDependencies())
 }
 
 func cmdInspectFlags(f *pflag.FlagSet) {

cmd/skaffold/app/cmd/inspect_config_dependencies.go

@@ -0,0 +1,64 @@
+/*
+Copyright 2023 The Skaffold Authors
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package cmd
+
+import (
+	"context"
+	"errors"
+	"io"
+
+	"github.com/spf13/cobra"
+	"github.com/spf13/pflag"
+
+	"github.com/GoogleContainerTools/skaffold/v2/pkg/skaffold/inspect"
+	configDependencies "github.com/GoogleContainerTools/skaffold/v2/pkg/skaffold/inspect/configDependencies"
+	olog "github.com/GoogleContainerTools/skaffold/v2/pkg/skaffold/output/log"
+)
+
+func cmdConfigDependencies() *cobra.Command {
+	return NewCmd("config-dependencies").
+		WithDescription("Interact with skaffold config dependency definitions.").
+		WithCommands(cmdConfigDependenciesAdd())
+}
+
+func cmdConfigDependenciesAdd() *cobra.Command {
+	return NewCmd("add").
+		WithDescription("Add config dependencies").
+		WithExample("Add config dependency defined in `dependency.json`.", "inspect config-dependencies add dependency.json -f skaffold.yaml").
+		WithFlagAdder(cmdConfigDependenciesAddFlags).
+		WithArgs(func(cmd *cobra.Command, args []string) error {
+			if len(args) != 1 {
+				errMsg := "`config-dependencies add` requires exactly one file path argument"
+				olog.Entry(context.TODO()).Errorf(errMsg)
+				return errors.New(errMsg)
+			}
+			return nil
+		}, addConfigDependencies)
+}
+
+func cmdConfigDependenciesAddFlags(f *pflag.FlagSet) {
+	f.StringSliceVarP(&inspectFlags.modules, "module", "m", nil, "Names of modules to filter target action by.")
+}
+
+func addConfigDependencies(ctx context.Context, out io.Writer, args []string) error {
+	return configDependencies.AddConfigDependencies(ctx, out, inspect.Options{
+		Filename:       inspectFlags.filename,
+		OutFormat:      inspectFlags.outFormat,
+		RemoteCacheDir: inspectFlags.remoteCacheDir,
+		Modules:        inspectFlags.modules,
+	}, args[0])
+}

pkg/skaffold/inspect/configDependencies/add.go

@@ -0,0 +1,133 @@
+/*
+Copyright 2023 The Skaffold Authors
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package inspect
+
+import (
+	"context"
+	"encoding/json"
+	"io"
+	"os"
+
+	"github.com/GoogleContainerTools/skaffold/v2/pkg/skaffold/config"
+	"github.com/GoogleContainerTools/skaffold/v2/pkg/skaffold/inspect"
+	"github.com/GoogleContainerTools/skaffold/v2/pkg/skaffold/schema/latest"
+	"github.com/GoogleContainerTools/skaffold/v2/pkg/skaffold/util"
+)
+
+type configDependencyList struct {
+	Dependencies []configDependencyEntry
+}
+
+type configDependencyEntry struct {
+	Names              []string            `json:"configs,omitempty"`
+	Path               string              `json:"path,omitempty"`
+	Git                *git                `json:"git,omitempty"`
+	GoogleCloudStorage *googleCloudStorage `json:"googleCloudStorage,omitempty"`
+	ActiveProfiles     []activeProfile     `json:"activeProfiles,omitempty"`
+}
+
+type git struct {
+	Repo string `json:"repo"`
+	Path string `json:"path,omitempty"`
+	Ref  string `json:"ref,omitempty"`
+	Sync bool   `json:"sync,omitempty"`
+}
+
+type googleCloudStorage struct {
+	Source string `json:"source"`
+	Path   string `json:"path,omitempty"`
+	Sync   bool   `json:"sync,omitempty"`
+}
+
+type activeProfile struct {
+	Name        string   `json:"name"`
+	ActivatedBy []string `json:"activatedBy,omitempty"`
+}
+
+func AddConfigDependencies(ctx context.Context, out io.Writer, opts inspect.Options, inputFile string) error {
+	formatter := inspect.OutputFormatter(out, opts.OutFormat)
+
+	jsonFile, err := os.Open(inputFile)
+	if err != nil {
+		formatter.WriteErr(err)
+		return err
+	}
+	defer jsonFile.Close()
+	fileBytes, err := io.ReadAll(jsonFile)
+	if err != nil {
+		formatter.WriteErr(err)
+		return err
+	}
+	var cds configDependencyList
+	if err := json.Unmarshal(fileBytes, &cds); err != nil {
+		formatter.WriteErr(err)
+		return err
+	}
+	cfgDependencies := convertToLatestConfigDependencies(cds)
+
+	cfgs, err := inspect.GetConfigSet(ctx, config.SkaffoldOptions{
+		ConfigurationFile:   opts.Filename,
+		RemoteCacheDir:      opts.RemoteCacheDir,
+		ConfigurationFilter: opts.Modules,
+		SkipConfigDefaults:  true,
+		MakePathsAbsolute:   util.Ptr(false),
+	})
+	if err != nil {
+		formatter.WriteErr(err)
+		return err
+	}
+
+	for _, cfg := range cfgs {
+		cfg.Dependencies = append(cfg.Dependencies, cfgDependencies...)
+	}
+	return inspect.MarshalConfigSet(cfgs)
+}
+
+func convertToLatestConfigDependencies(cfgDepList configDependencyList) []latest.ConfigDependency {
+	var res []latest.ConfigDependency
+	for _, d := range cfgDepList.Dependencies {
+		var cd latest.ConfigDependency
+		cd.Names = d.Names
+		cd.Path = d.Path
+		if d.Git != nil {
+			cd.GitRepo = &latest.GitInfo{
+				Repo: d.Git.Repo,
+				Path: d.Git.Path,
+				Ref:  d.Git.Ref,
+				Sync: &d.Git.Sync,
+			}
+		}
+		if d.GoogleCloudStorage != nil {
+			cd.GoogleCloudStorage = &latest.GoogleCloudStorageInfo{
+				Source: d.GoogleCloudStorage.Source,
+				Path:   d.GoogleCloudStorage.Path,
+				Sync:   &d.GoogleCloudStorage.Sync,
+			}
+		}
+		var profileDep []latest.ProfileDependency
+		for _, ap := range d.ActiveProfiles {
+			profileDep = append(profileDep, latest.ProfileDependency{
+				Name:        ap.Name,
+				ActivatedBy: ap.ActivatedBy,
+			})
+		}
+		cd.ActiveProfiles = profileDep
+
+		res = append(res, cd)
+	}
+	return res
+}