Add devices without restart (fixes #2083)

test/.gitignore

@@ -1,6 +1,7 @@
 s1
 s2
 s3
+s4
 s12-1
 s12-2
 s23-2
@@ -20,3 +21,4 @@ h*/index*
 panic-*.log
 audit-*.log
 h*/config.xml.v*
+h*/config.xml.orig

test/h1/config.xml

@@ -3,6 +3,7 @@
         <device id="I6KAH76-66SLLLB-5PFXSOA-UFJCDZC-YAOMLEK-CP2GB32-BV5RQST-3PSROAU"></device>
         <device id="JMFJCXB-GZDE4BN-OCJE3VF-65GYZNU-AIVJRET-3J6HMRQ-AUQIGJO-FKNHMQU"></device>
         <device id="373HSRP-QLPNLIE-JYKZVQF-P4PKZ63-R2ZE6K3-YD442U2-JHBGBQG-WWXAHAU"></device>
+        <device id="7PBCTLL-JJRYBSA-MOWZRKL-MSDMN4N-4US4OMX-SYEXUS4-HSBGNRY-CZXRXAT"></device>
         <versioning></versioning>
         <lenientMtimes>false</lenientMtimes>
         <copiers>1</copiers>
@@ -31,6 +32,9 @@
     <device id="373HSRP-QLPNLIE-JYKZVQF-P4PKZ63-R2ZE6K3-YD442U2-JHBGBQG-WWXAHAU" name="s3" compression="metadata" introducer="false">
         <address>127.0.0.1:22003</address>
     </device>
+    <device id="7PBCTLL-JJRYBSA-MOWZRKL-MSDMN4N-4US4OMX-SYEXUS4-HSBGNRY-CZXRXAT" name="s4" compression="metadata" introducer="false">
+        <address>127.0.0.1:22004</address>
+    </device>
     <gui enabled="true" tls="false">
         <address>127.0.0.1:8081</address>
         <user>testuser</user>

test/h4/cert.pem

@@ -0,0 +1,23 @@
+-----BEGIN CERTIFICATE-----
+MIID6TCCAlGgAwIBAgIISz5XufRr9xMwDQYJKoZIhvcNAQELBQAwFDESMBAGA1UE
+AxMJc3luY3RoaW5nMB4XDTE1MDcyMjA3MDIzOFoXDTQ5MTIzMTIzNTk1OVowFDES
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++89AB60QSN6MJzVNPdJZCPvefuJjk9isQBUbQE/CsVFeooKJ/DU5arbUV2mjaifV
+Z6GxHiEkynSWaNMQLioi+vPguMdAuotdqpInVjCLKJbKiOXrYfIhYJFATc0lRBHx
+9LUH020HOACgX+WVFiDEDx7OCu868IbDJK/gryb5IfIpbaY4xit9eoqMS4BP
+-----END CERTIFICATE-----

test/h4/config.xml

@@ -0,0 +1,47 @@
+<configuration version="10">
+    <folder id="default" path="s4" ro="false" rescanIntervalS="60" ignorePerms="false" autoNormalize="false">
+        <device id="7PBCTLL-JJRYBSA-MOWZRKL-MSDMN4N-4US4OMX-SYEXUS4-HSBGNRY-CZXRXAT"></device>
+        <versioning></versioning>
+        <copiers>1</copiers>
+        <pullers>16</pullers>
+        <hashers>0</hashers>
+        <order>random</order>
+        <ignoreDelete>false</ignoreDelete>
+    </folder>
+    <device id="7PBCTLL-JJRYBSA-MOWZRKL-MSDMN4N-4US4OMX-SYEXUS4-HSBGNRY-CZXRXAT" name="s4" compression="metadata" introducer="false">
+        <address>dynamic</address>
+    </device>
+    <gui enabled="true" tls="false">
+        <address>127.0.0.1:8084</address>
+        <apikey>PMA5yUTG-Mw98nJ0YEtWTCHlM5O4aNi0</apikey>
+    </gui>
+    <options>
+        <listenAddress>127.0.0.1:22004</listenAddress>
+        <globalAnnounceServer>udp4://announce.syncthing.net:22026</globalAnnounceServer>
+        <globalAnnounceServer>udp6://announce-v6.syncthing.net:22026</globalAnnounceServer>
+        <globalAnnounceEnabled>false</globalAnnounceEnabled>
+        <localAnnounceEnabled>false</localAnnounceEnabled>
+        <localAnnouncePort>21025</localAnnouncePort>
+        <localAnnounceMCAddr>[ff32::5222]:21026</localAnnounceMCAddr>
+        <maxSendKbps>0</maxSendKbps>
+        <maxRecvKbps>0</maxRecvKbps>
+        <reconnectionIntervalS>60</reconnectionIntervalS>
+        <startBrowser>false</startBrowser>
+        <upnpEnabled>false</upnpEnabled>
+        <upnpLeaseMinutes>60</upnpLeaseMinutes>
+        <upnpRenewalMinutes>30</upnpRenewalMinutes>
+        <upnpTimeoutSeconds>10</upnpTimeoutSeconds>
+        <urAccepted>-1</urAccepted>
+        <urUniqueID></urUniqueID>
+        <restartOnWakeup>true</restartOnWakeup>
+        <autoUpgradeIntervalH>12</autoUpgradeIntervalH>
+        <keepTemporariesH>24</keepTemporariesH>
+        <cacheIgnoredFiles>true</cacheIgnoredFiles>
+        <progressUpdateIntervalS>5</progressUpdateIntervalS>
+        <symlinksEnabled>true</symlinksEnabled>
+        <limitBandwidthInLan>false</limitBandwidthInLan>
+        <databaseBlockCacheMiB>0</databaseBlockCacheMiB>
+        <pingTimeoutS>30</pingTimeoutS>
+        <pingIdleTimeS>60</pingIdleTimeS>
+    </options>
+</configuration>

test/h4/https-cert.pem

@@ -0,0 +1,23 @@
+-----BEGIN CERTIFICATE-----
+MIID3zCCAkegAwIBAgIIWH6f9/hiHaowDQYJKoZIhvcNAQELBQAwDzENMAsGA1UE
+AxMEc3lubzAeFw0xNTA3MjIwNzE1MjlaFw00OTEyMzEyMzU5NTlaMA8xDTALBgNV
+BAMTBHN5bm8wggGiMA0GCSqGSIb3DQEBAQUAA4IBjwAwggGKAoIBgQCgideynuoI
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+k7KQB7dqbOS7VIOJj8+GPbaf3aTdG+b1z3KVcDMH+59TddE=
+-----END CERTIFICATE-----

test/h4/https-key.pem

@@ -0,0 +1,39 @@
+-----BEGIN RSA PRIVATE KEY-----
+MIIG4wIBAAKCAYEAoInXsp7qCDHzdj0e1nz1r0Y52DbjaeVNQuRswH6ysVWh5H6b
+fgLFxx7LqNV5d4HbCLNVHNmfEciz8RYE/myyiqsE8OA//SUx7Rdrzi5GSweP9AYX
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+Vj1iRoOjyLJ46px8Ufsv7PDY4A9gukqgrTI6FApeLb/qn4iYfVrK
+-----END RSA PRIVATE KEY-----

test/h4/key.pem

@@ -0,0 +1,39 @@
+-----BEGIN RSA PRIVATE KEY-----
+MIIG4wIBAAKCAYEA4nE2FPVQkfMStJms0SUEjSi5qUC4I2+aCFD+q6rLJHhgzdvj
+XoQ8iWX8hFLunza3mMKTSjcThnpR/yA1S0ipATsdQ5c5xjceliSLDxImBcBaMtvG
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+bxvuPS5n7boLfwLlmvIhX7L/V7iLc5rCAI+0b08JsmMmIDOlytJW
+-----END RSA PRIVATE KEY-----

test/norestart_test.go

@@ -0,0 +1,85 @@
+// Copyright (C) 2014 The Syncthing Authors.
+//
+// This Source Code Form is subject to the terms of the Mozilla Public
+// License, v. 2.0. If a copy of the MPL was not distributed with this file,
+// You can obtain one at http://mozilla.org/MPL/2.0/.
+
+// +build integration
+
+package integration
+
+import (
+	"log"
+	"os"
+	"testing"
+
+	"github.com/syncthing/protocol"
+	"github.com/syncthing/syncthing/internal/config"
+	"github.com/syncthing/syncthing/internal/rc"
+)
+
+func TestAddDeviceWithoutRestart(t *testing.T) {
+	log.Println("Cleaning...")
+	err := removeAll("s1", "h1/index*", "s4", "h4/index*")
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	log.Println("Generating files...")
+	err = generateFiles("s1", 100, 18, "../LICENSE")
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	p1 := startInstance(t, 1)
+	defer checkedStop(t, p1)
+
+	p4 := startInstance(t, 4)
+	defer checkedStop(t, p4)
+
+	if ok, err := p1.ConfigInSync(); err != nil || !ok {
+		t.Fatal("p1 should be in sync;", ok, err)
+	}
+	if ok, err := p4.ConfigInSync(); err != nil || !ok {
+		t.Fatal("p4 should be in sync;", ok, err)
+	}
+
+	// Add the p1 device to p4. Back up and restore p4's config first.
+
+	log.Println("Adding p1 to p4...")
+
+	os.Remove("h4/config.xml.orig")
+	os.Rename("h4/config.xml", "h4/config.xml.orig")
+	defer os.Rename("h4/config.xml.orig", "h4/config.xml")
+
+	cfg, err := p4.GetConfig()
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	devCfg := config.DeviceConfiguration{
+		DeviceID:    p1.ID(),
+		Name:        "s1",
+		Addresses:   []string{"127.0.0.1:22001"},
+		Compression: protocol.CompressMetadata,
+	}
+	cfg.Devices = append(cfg.Devices, devCfg)
+
+	cfg.Folders[0].Devices = append(cfg.Folders[0].Devices, config.FolderDeviceConfiguration{DeviceID: p1.ID()})
+
+	if err = p4.PostConfig(cfg); err != nil {
+		t.Fatal(err)
+	}
+
+	// The change should not require a restart, so the config should be "in sync"
+
+	if ok, err := p4.ConfigInSync(); err != nil || !ok {
+		t.Fatal("p4 should be in sync;", ok, err)
+	}
+
+	// Wait for the devices to connect and sync.
+
+	log.Println("Waiting for p1 and p4 to connect and sync...")
+
+	rc.AwaitSync("default", p1, p4)
+}