Check Command to check completeness of a component version graph (#644)

### ## Description

The new command `ocm check componentversion` checks component versions
in an OCM
repository to be complete. All directly or indirectly references
versions must also be
available in the repository of the initially checked one.

Additionally, it checks for cycles and may be more consistency
conditions in the future.

## What type of PR is this? (check all applicable)

- [x] 🍕 Feature
- [ ] 🐛 Bug Fix
- [x] 📝 Documentation Update
- [ ] 🎨 Style
- [ ] 🧑‍💻 Code Refactor
- [ ] 🔥 Performance Improvements
- [x] ✅ Test
- [ ] 🤖 Build
- [ ] 🔁 CI
- [ ] 📦 Chore (Release)
- [ ] ⏩ Revert

## Related Tickets & Documents

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- Related Issue # (issue)
- Closes # (issue)
- Fixes # (issue)
> Remove if not applicable

## Screenshots

<!-- Visual changes require screenshots -->


## Added tests?

- [x] 👍 yes
- [ ] 🙅 no, because they aren't needed
- [ ] 🙋 no, because I need help
- [ ] Separate ticket for tests # (issue/pr)

Please describe the tests that you ran to verify your changes. Provide
instructions so we can reproduce. Please also list any relevant details
for your test configuration


## Added to documentation?

- [ ] 📜 README.md
- [ ] 🙅 no documentation needed

## Checklist:

- [ ] My code follows the style guidelines of this project
- [ ] I have performed a self-review of my code
- [ ] I have commented my code, particularly in hard-to-understand areas
- [ ] I have made corresponding changes to the documentation
- [ ] My changes generate no new warnings
- [ ] I have added tests that prove my fix is effective or that my
feature works
- [ ] New and existing unit tests pass locally with my changes
- [ ] Any dependent changes have been merged and published in downstream
modules

cmds/ocm/app/app.go

@@ -36,6 +36,7 @@ import (
 	"github.com/open-component-model/ocm/cmds/ocm/commands/toicmds"
 	"github.com/open-component-model/ocm/cmds/ocm/commands/verbs/add"
 	"github.com/open-component-model/ocm/cmds/ocm/commands/verbs/bootstrap"
+	"github.com/open-component-model/ocm/cmds/ocm/commands/verbs/check"
 	"github.com/open-component-model/ocm/cmds/ocm/commands/verbs/clean"
 	"github.com/open-component-model/ocm/cmds/ocm/commands/verbs/controller"
 	"github.com/open-component-model/ocm/cmds/ocm/commands/verbs/create"
@@ -82,7 +83,7 @@ type CLIOptions struct {
 	keyoption.Option
 
 	Completed   bool
-	Config      string
+	Config      []string
 	ConfigSets  []string
 	Credentials []string
 	Context     clictx.Context
@@ -231,6 +232,7 @@ func newCliCommand(opts *CLIOptions, mod ...func(clictx.Context, *cobra.Command)
 
 	cmd.AddCommand(NewVersionCommand(opts.Context))
 
+	cmd.AddCommand(check.NewCommand(opts.Context))
 	cmd.AddCommand(get.NewCommand(opts.Context))
 	cmd.AddCommand(create.NewCommand(opts.Context))
 	cmd.AddCommand(add.NewCommand(opts.Context))
@@ -306,7 +308,7 @@ func newCliCommand(opts *CLIOptions, mod ...func(clictx.Context, *cobra.Command)
 }
 
 func (o *CLIOptions) AddFlags(fs *pflag.FlagSet) {
-	fs.StringVarP(&o.Config, "config", "", "", "configuration file")
+	fs.StringArrayVarP(&o.Config, "config", "", nil, "configuration file")
 	fs.StringSliceVarP(&o.ConfigSets, "config-set", "", nil, "apply configuration set")
 	fs.StringArrayVarP(&o.Credentials, "cred", "C", nil, "credential setting")
 	fs.StringArrayVarP(&o.Settings, "attribute", "X", nil, "attribute setting")
@@ -335,9 +337,18 @@ func (o *CLIOptions) Complete() error {
 	if err != nil {
 		return err
 	}
-	_, err = utils.Configure(o.Context.OCMContext(), o.Config, vfsattr.Get(o.Context))
-	if err != nil {
-		return err
+
+	if len(o.Config) == 0 {
+		_, err = utils.Configure(o.Context.OCMContext(), "", vfsattr.Get(o.Context))
+		if err != nil {
+			return err
+		}
+	}
+	for _, config := range o.Config {
+		_, err = utils.Configure(o.Context.OCMContext(), config, vfsattr.Get(o.Context))
+		if err != nil {
+			return err
+		}
 	}
 
 	err = o.Option.Configure(o.Context)

cmds/ocm/commands/common/options/failonerroroption/option.go

@@ -5,6 +5,7 @@
 package failonerroroption
 
 import (
+	"github.com/open-component-model/ocm/pkg/errors"
 	"github.com/spf13/pflag"
 
 	"github.com/open-component-model/ocm/cmds/ocm/pkg/options"
@@ -22,10 +23,40 @@ func New() *Option {
 
 type Option struct {
 	Fail bool
+	err  error
 }
 
 func (o *Option) AddFlags(fs *pflag.FlagSet) {
-	fs.BoolVarP(&o.Fail, "fail-on-error", "", false, "fail on label validation error")
+	fs.BoolVarP(&o.Fail, "fail-on-error", "", false, "fail on validation error")
 }
 
 var _ options.Options = (*Option)(nil)
+
+func (o *Option) GetError() error {
+	return o.err
+}
+func (o *Option) SetError(err error) {
+	o.err = err
+}
+
+func (o *Option) AddError(err error) {
+	if err == nil {
+		return
+	}
+	if o.err == nil {
+		o.err = errors.ErrList().Add(err)
+	} else {
+		if l, ok := o.err.(*errors.ErrorList); ok {
+			l.Add(err)
+		} else {
+			o.err = errors.ErrList().Add(o.err, err)
+		}
+	}
+}
+
+func (o *Option) ActivatedError() error {
+	if o.Fail {
+		return o.err
+	}
+	return nil
+}

cmds/ocm/commands/misccmds/credentials/get/cmd.go

@@ -8,9 +8,6 @@ import (
 	"sort"
 	"strings"
 
-	"github.com/spf13/cobra"
-	"github.com/spf13/pflag"
-
 	"github.com/open-component-model/ocm/cmds/ocm/commands/misccmds/names"
 	"github.com/open-component-model/ocm/cmds/ocm/commands/verbs"
 	"github.com/open-component-model/ocm/cmds/ocm/pkg/output"
@@ -19,6 +16,9 @@ import (
 	"github.com/open-component-model/ocm/pkg/contexts/credentials"
 	"github.com/open-component-model/ocm/pkg/errors"
 	"github.com/open-component-model/ocm/pkg/listformat"
+	"github.com/open-component-model/ocm/pkg/out"
+	"github.com/spf13/cobra"
+	"github.com/spf13/pflag"
 )
 
 var (
@@ -32,7 +32,8 @@ type Command struct {
 	Consumer credentials.ConsumerIdentity
 	Matcher  credentials.IdentityMatcher
 
-	Type string
+	Type   string
+	Sloppy bool
 }
 
 var _ utils.OCMCommand = (*Command)(nil)
@@ -75,6 +76,7 @@ The usage of a dedicated matcher can be enforced by the option <code>--matcher</
 
 func (o *Command) AddFlags(set *pflag.FlagSet) {
 	set.StringVarP(&o.Type, "matcher", "m", "", "matcher type override")
+	set.BoolVarP(&o.Sloppy, "sloppy", "s", false, "sloppy matching of consumer type")
 }
 
 func (o *Command) Complete(args []string) error {
@@ -111,6 +113,14 @@ func (o *Command) Complete(args []string) error {
 }
 
 func (o *Command) Run() error {
+	if o.Sloppy {
+		fix := credentials.GuessConsumerType(o, o.Consumer.Type())
+		if fix != o.Consumer.Type() {
+			out.Outf(o, "Correcting consumer type to %q\n", fix)
+			o.Consumer[credentials.ID_TYPE] = fix
+		}
+	}
+
 	creds, err := credentials.RequiredCredentialsForConsumer(o.CredentialsContext(), o.Consumer, o.Matcher)
 	if err != nil {
 		return err