syncthing/test/symlink_test.go

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// Copyright (C) 2014 The Syncthing Authors.
//
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// 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 https://mozilla.org/MPL/2.0/.
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// +build integration
package integration
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import (
"log"
"os"
"testing"
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"github.com/syncthing/syncthing/lib/config"
"github.com/syncthing/syncthing/lib/events"
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"github.com/syncthing/syncthing/lib/protocol"
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"github.com/syncthing/syncthing/lib/rc"
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)
func TestSymlinks(t *testing.T) {
if !symlinksSupported() {
t.Skip("symlinks unsupported")
}
// Use no versioning
id, _ := protocol.DeviceIDFromString(id2)
cfg, _ := config.Load("h2/config.xml", id, events.NoopLogger)
fld := cfg.Folders()["default"]
fld.Versioning = config.VersioningConfiguration{}
cfg.SetFolder(fld)
os.Rename("h2/config.xml", "h2/config.xml.orig")
defer os.Rename("h2/config.xml.orig", "h2/config.xml")
cfg.Save()
testSymlinks(t)
}
func TestSymlinksSimpleVersioning(t *testing.T) {
if !symlinksSupported() {
t.Skip("symlinks unsupported")
}
// Use simple versioning
id, _ := protocol.DeviceIDFromString(id2)
cfg, _ := config.Load("h2/config.xml", id, events.NoopLogger)
fld := cfg.Folders()["default"]
fld.Versioning = config.VersioningConfiguration{
Type: "simple",
Params: map[string]string{"keep": "5"},
}
cfg.SetFolder(fld)
os.Rename("h2/config.xml", "h2/config.xml.orig")
defer os.Rename("h2/config.xml.orig", "h2/config.xml")
cfg.Save()
testSymlinks(t)
}
func TestSymlinksStaggeredVersioning(t *testing.T) {
if !symlinksSupported() {
t.Skip("symlinks unsupported")
}
// Use staggered versioning
id, _ := protocol.DeviceIDFromString(id2)
cfg, _ := config.Load("h2/config.xml", id, events.NoopLogger)
fld := cfg.Folders()["default"]
fld.Versioning = config.VersioningConfiguration{
Type: "staggered",
}
cfg.SetFolder(fld)
os.Rename("h2/config.xml", "h2/config.xml.orig")
defer os.Rename("h2/config.xml.orig", "h2/config.xml")
cfg.Save()
testSymlinks(t)
}
func testSymlinks(t *testing.T) {
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log.Println("Cleaning...")
err := removeAll("s1", "s2", "h1/index*", "h2/index*")
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if err != nil {
t.Fatal(err)
}
log.Println("Generating files...")
err = generateFiles("s1", 100, 20, "../LICENSE")
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if err != nil {
t.Fatal(err)
}
// A file that we will replace with a symlink later
fd, err := os.Create("s1/fileToReplace")
if err != nil {
t.Fatal(err)
}
fd.Close()
// A directory that we will replace with a symlink later
err = os.Mkdir("s1/dirToReplace", 0755)
if err != nil {
t.Fatal(err)
}
// A file and a symlink to that file
fd, err = os.Create("s1/file")
if err != nil {
t.Fatal(err)
}
fd.Close()
err = os.Symlink("file", "s1/fileLink")
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if err != nil {
log.Fatal(err)
}
// A directory and a symlink to that directory
err = os.Mkdir("s1/dir", 0755)
if err != nil {
t.Fatal(err)
}
err = os.Symlink("dir", "s1/dirLink")
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if err != nil {
log.Fatal(err)
}
// A link to something in the repo that does not exist
err = os.Symlink("does/not/exist", "s1/noneLink")
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if err != nil {
log.Fatal(err)
}
// A link we will replace with a file later
err = os.Symlink("does/not/exist", "s1/repFileLink")
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if err != nil {
log.Fatal(err)
}
// A link we will replace with a directory later
err = os.Symlink("does/not/exist", "s1/repDirLink")
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if err != nil {
log.Fatal(err)
}
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// A link we will remove later
err = os.Symlink("does/not/exist", "s1/removeLink")
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if err != nil {
log.Fatal(err)
}
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// Verify that the files and symlinks sync to the other side
sender := startInstance(t, 1)
defer checkedStop(t, sender)
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receiver := startInstance(t, 2)
defer checkedStop(t, receiver)
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sender.ResumeAll()
receiver.ResumeAll()
log.Println("Syncing...")
rc.AwaitSync("default", sender, receiver)
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log.Println("Comparing directories...")
err = compareDirectories("s1", "s2")
if err != nil {
t.Fatal(err)
}
log.Println("Making some changes...")
// Remove one symlink
err = os.Remove("s1/fileLink")
if err != nil {
log.Fatal(err)
}
// Change the target of another
err = os.Remove("s1/dirLink")
if err != nil {
log.Fatal(err)
}
err = os.Symlink("file", "s1/dirLink")
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if err != nil {
log.Fatal(err)
}
// Replace one with a file
err = os.Remove("s1/repFileLink")
if err != nil {
log.Fatal(err)
}
fd, err = os.Create("s1/repFileLink")
if err != nil {
log.Fatal(err)
}
fd.Close()
// Replace one with a directory
err = os.Remove("s1/repDirLink")
if err != nil {
log.Fatal(err)
}
err = os.Mkdir("s1/repDirLink", 0755)
if err != nil {
log.Fatal(err)
}
// Replace a file with a symlink
err = os.Remove("s1/fileToReplace")
if err != nil {
log.Fatal(err)
}
err = os.Symlink("somewhere/non/existent", "s1/fileToReplace")
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if err != nil {
log.Fatal(err)
}
// Replace a directory with a symlink
err = os.RemoveAll("s1/dirToReplace")
if err != nil {
log.Fatal(err)
}
err = os.Symlink("somewhere/non/existent", "s1/dirToReplace")
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if err != nil {
log.Fatal(err)
}
// Remove a broken symlink
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err = os.Remove("s1/removeLink")
if err != nil {
log.Fatal(err)
}
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// Sync these changes and recheck
log.Println("Syncing...")
if err := sender.Rescan("default"); err != nil {
t.Fatal(err)
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}
rc.AwaitSync("default", sender, receiver)
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log.Println("Comparing directories...")
err = compareDirectories("s1", "s2")
if err != nil {
t.Fatal(err)
}
}