dis_grant: Add option to add grant for every wisski

cmd/dis_grant.go

@@ -5,12 +5,14 @@ import (
 	"github.com/FAU-CDI/wisski-distillery/internal/cli"
 	"github.com/FAU-CDI/wisski-distillery/internal/dis/component/instances"
 	"github.com/FAU-CDI/wisski-distillery/internal/models"
+	"github.com/tkw1536/goprogram/exit"
 )
 
 // DisGrant is the 'dis_grant' command
 var DisGrant wisski_distillery.Command = disGrant{}
 
 type disGrant struct {
+	AddAll     bool `short:"m" long:"add-all" description:"add grant to all WissKIs"`
 	AddUser    bool `short:"a" long:"add" description:"add or update a user to a given wisski"`
 	RemoveUser bool `short:"r" long:"remove" description:"remove a user from a given wisski"`
 
@@ -18,7 +20,7 @@ type disGrant struct {
 
 	Positionals struct {
 		User       string `positional-arg-name:"USER" required:"1-1" description:"distillery username"`
-		Slug       string `positional-arg-name:"SLUG" required:"1-1" description:"WissKI instance"`
+		Slug       string `positional-arg-name:"SLUG" description:"WissKI instance"`
 		DrupalUser string `positional-arg-name:"DRUPAL" description:"drupal username"`
 	} `positional-args:"true"`
 }
@@ -33,11 +35,17 @@ func (disGrant) Description() wisski_distillery.Description {
 	}
 }
 
+var errNoSlugSelect = exit.Error{
+	Message:  "slug not provided",
+	ExitCode: exit.ExitCommandArguments,
+}
+
 func (dg disGrant) AfterParse() error {
 	var counter int
 	for _, action := range []bool{
 		dg.AddUser,
 		dg.RemoveUser,
+		dg.AddAll,
 	} {
 		if action {
 			counter++
@@ -48,6 +56,10 @@ func (dg disGrant) AfterParse() error {
 		return errNoActionSelected
 	}
 
+	if !dg.AddAll && dg.Positionals.Slug == "" {
+		return errNoSlugSelect
+	}
+
 	return nil
 }
 
@@ -55,6 +67,8 @@ func (dg disGrant) Run(context wisski_distillery.Context) error {
 	switch {
 	case dg.AddUser:
 		return dg.runAddUser(context)
+	case dg.AddAll:
+		return dg.runAddAll(context)
 	case dg.RemoveUser:
 		return dg.runRemoveUser(context)
 	}
@@ -94,3 +108,26 @@ func (dg disGrant) runRemoveUser(context wisski_distillery.Context) error {
 	policy := context.Environment.Policy()
 	return policy.Remove(context.Context, dg.Positionals.User, dg.Positionals.Slug)
 }
+
+func (dg disGrant) runAddAll(context wisski_distillery.Context) error {
+	policy := context.Environment.Policy()
+
+	instances, err := context.Environment.Instances().All(context.Context)
+	if err != nil {
+		return err
+	}
+
+	for _, instance := range instances {
+		context.Printf("Adding grant for user %s to %s\n", dg.Positionals.User, instance.Slug)
+		if err := policy.Set(context.Context, models.Grant{
+			User:            dg.Positionals.User,
+			Slug:            instance.Slug,
+			DrupalUsername:  dg.Positionals.User,
+			DrupalAdminRole: dg.DrupalAdmin,
+		}); err != nil {
+			return err
+		}
+	}
+
+	return nil
+}