feat: add ability to clear global domains

docs/configuration/domains.md

@@ -6,6 +6,7 @@
 domains:add <app> <domain> [<domain> ...]      # Add domains to app
 domains:add-global <domain> [<domain> ...]     # Add global domain names
 domains:clear <app>                            # Clear all domains for app
+domains:clear-global                           # Clear global domain names
 domains:disable <app>                          # Disable VHOST support
 domains:enable <app>                           # Enable VHOST support
 domains:remove <app> <domain> [<domain> ...]   # Remove domains from app

plugins/domains/functions

@@ -176,6 +176,14 @@ domains_add_global() {
   done
 }
 
+domains_clear_global() {
+  declare desc="remove all domains"
+  local GLOBAL_VHOST_PATH="$DOKKU_ROOT/VHOST"
+
+  rm "$GLOBAL_VHOST_PATH"
+  touch "$GLOBAL_VHOST_PATH"
+}
+
 domains_remove_global() {
   declare desc="remove list of domains"
   local GLOBAL_VHOST_PATH="$DOKKU_ROOT/VHOST"

plugins/domains/internal-functions

@@ -91,6 +91,7 @@ domains_help_content_func() {
     domains:add <app> <domain> [<domain> ...], Add domains to app
     domains:add-global <domain> [<domain> ...], Add global domain names
     domains:clear <app>, Clear all domains for app
+    domains:clear-global, Clear global domain names
     domains:disable <app>, Disable VHOST support
     domains:enable <app>, Enable VHOST support
     domains:remove <app> <domain> [<domain> ...], Remove domains from app

tests/unit/20_domains.bats

@@ -234,6 +234,24 @@ teardown() {
   assert_success
 }
 
+@test "(domains) domains:clear-global" {
+  run /bin/bash -c "dokku domains:add-global global.dokku.invalid"
+  echo "output: $output"
+  echo "status: $status"
+  assert_success
+
+  run /bin/bash -c "dokku domains:add-global global.dokku.me"
+  echo "output: $output"
+  echo "status: $status"
+  assert_success
+
+  run /bin/bash -c "dokku domains:clear-global"
+  echo "output: $output"
+  echo "status: $status"
+  refute_line "global.dokku.invalid"
+  refute_line "global.dokku.me"
+}
+
 @test "(domains) domains:remove-global" {
   run /bin/bash -c "dokku domains:add-global global.dokku.me"
   echo "output: $output"