From: Rafał Miłecki <ra...@milecki.pl>

Problem with handling all migrations in 1 step is that uci.sections()
doesn't include changes queued using uci.callAdd() and uci.callSet().
That could result in unexpected behaviour and generating invalid
configs.

For the sake of simplicity and reliability use 2 steps migration. The
downside is that users may get prompted twice to migrate.

Reported-by: Hauke Mehrtens <ha...@hauke-m.de>
Fixes: 74be304e541f ("treewide: use "device" option in UCI "interface" 
sections")
Signed-off-by: Rafał Miłecki <ra...@milecki.pl>
---
 .../resources/view/network/interfaces.js      | 48 +++++++++++++------
 1 file changed, 34 insertions(+), 14 deletions(-)

diff --git 
a/modules/luci-mod-network/htdocs/luci-static/resources/view/network/interfaces.js
 
b/modules/luci-mod-network/htdocs/luci-static/resources/view/network/interfaces.js
index 6f8fd614b1..343bc31cfd 100644
--- 
a/modules/luci-mod-network/htdocs/luci-static/resources/view/network/interfaces.js
+++ 
b/modules/luci-mod-network/htdocs/luci-static/resources/view/network/interfaces.js
@@ -317,11 +317,10 @@ return view.extend({
                });
        },
 
-       handleMigration: function(ev) {
-               var interfaces = this.interfaceBridgeWithIfnameSections();
+       handleBridgeMigration: function(ev) {
                var tasks = [];
 
-               interfaces.forEach(function(ns) {
+               this.interfaceBridgeWithIfnameSections().forEach(function(ns) {
                        var device_name = 'br-' + ns['.name'];
 
                        tasks.push(uci.callAdd('network', 'device', null, {
@@ -332,12 +331,32 @@ return view.extend({
 
                        tasks.push(uci.callSet('network', ns['.name'], {
                                'type': '',
-                               'device': device_name
+                               'ifname': device_name
                        }));
                });
 
+               return Promise.all(tasks)
+                       .then(L.bind(ui.changes.init, ui.changes))
+                       .then(L.bind(ui.changes.apply, ui.changes));
+       },
+
+       renderBridgeMigration: function() {
+               ui.showModal(_('Network bridge configuration migration'), [
+                       E('p', _('The existing network configuration needs to 
be changed for LuCI to function properly.')),
+                       E('p', _('Upon pressing "Continue", bridges 
configuration will be updated and the network will be restarted to apply the 
updated configuration.')),
+                       E('div', { 'class': 'right' },
+                               E('button', {
+                                       'class': 'btn cbi-button-action 
important',
+                                       'click': ui.createHandlerFn(this, 
'handleBridgeMigration')
+                               }, _('Continue')))
+               ]);
+       },
+
+       handleIfnameMigration: function(ev) {
+               var tasks = [];
+
                this.deviceWithIfnameSections().forEach(function(ds) {
-                       tasks.push(uci.callSet('network', ds['.name'], {
+                       tasks.push(uci.add('network', ds['.name'], {
                                'ifname': '',
                                'ports': L.toArray(ds.ifname)
                        }));
@@ -355,14 +374,14 @@ return view.extend({
                        .then(L.bind(ui.changes.apply, ui.changes));
        },
 
-       renderMigration: function() {
-               ui.showModal(_('Network bridge configuration migration'), [
+       renderIfnameMigration: function() {
+               ui.showModal(_('Network ifname configuration migration'), [
                        E('p', _('The existing network configuration needs to 
be changed for LuCI to function properly.')),
-                       E('p', _('Upon pressing "Continue", bridges 
configuration will be updated and the network will be restarted to apply the 
updated configuration.')),
+                       E('p', _('Upon pressing "Continue", ifname options will 
get renamed and the network will be restarted to apply the updated 
configuration.')),
                        E('div', { 'class': 'right' },
                                E('button', {
                                        'class': 'btn cbi-button-action 
important',
-                                       'click': ui.createHandlerFn(this, 
'handleMigration')
+                                       'click': ui.createHandlerFn(this, 
'handleIfnameMigration')
                                }, _('Continue')))
                ]);
        },
@@ -370,11 +389,12 @@ return view.extend({
        render: function(data) {
                var netifdVersion = (data[3] || '').match(/Version: ([^\n]+)/);
 
-               if (netifdVersion && netifdVersion[1] >= "2021-05-26" &&
-                   (this.interfaceBridgeWithIfnameSections().length ||
-                    this.deviceWithIfnameSections().length ||
-                    this.interfaceWithIfnameSections().length))
-                       return this.renderMigration();
+               if (netifdVersion && netifdVersion[1] >= "2021-05-26") {
+                       if (this.interfaceBridgeWithIfnameSections().length)
+                               return this.renderBridgeMigration();
+                       else if (this.deviceWithIfnameSections().length || 
this.interfaceWithIfnameSections().length)
+                               return this.renderIfnameMigration();
+               }
 
                var dslModemType = data[0],
                    netDevs = data[1],
-- 
2.26.2


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