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build.go
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build.go
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// 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 https://mozilla.org/MPL/2.0/.
// +build ignore
package main
import (
"archive/tar"
"archive/zip"
"bytes"
"compress/flate"
"compress/gzip"
"crypto/sha256"
"encoding/json"
"errors"
"flag"
"fmt"
"io"
"io/ioutil"
"log"
"os"
"os/exec"
"os/user"
"path/filepath"
"regexp"
"runtime"
"strconv"
"strings"
"time"
)
var (
goarch string
goos string
noupgrade bool
version string
goCmd string
race bool
debug = os.Getenv("BUILDDEBUG") != ""
extraTags string
installSuffix string
pkgdir string
cc string
run string
benchRun string
debugBinary bool
coverage bool
timeout = "120s"
numVersions = 5
withNextGenGUI = os.Getenv("BUILD_NEXT_GEN_GUI") != ""
)
type target struct {
name string
debname string
debdeps []string
debpre string
debpost string
description string
buildPkgs []string
binaryName string
archiveFiles []archiveFile
systemdServices []string
installationFiles []archiveFile
tags []string
}
type archiveFile struct {
src string
dst string
perm os.FileMode
}
var targets = map[string]target{
"all": {
// Only valid for the "build" and "install" commands as it lacks all
// the archive creation stuff. buildPkgs gets filled out in init()
tags: []string{"purego"},
},
"syncthing": {
// The default target for "build", "install", "tar", "zip", "deb", etc.
name: "syncthing",
debname: "syncthing",
debdeps: []string{"libc6", "procps"},
debpost: "script/post-upgrade",
description: "Open Source Continuous File Synchronization",
buildPkgs: []string{"github.com/syncthing/syncthing/cmd/syncthing"},
binaryName: "syncthing", // .exe will be added automatically for Windows builds
archiveFiles: []archiveFile{
{src: "{{binary}}", dst: "{{binary}}", perm: 0755},
{src: "README.md", dst: "README.txt", perm: 0644},
{src: "LICENSE", dst: "LICENSE.txt", perm: 0644},
{src: "AUTHORS", dst: "AUTHORS.txt", perm: 0644},
// All files from etc/ and extra/ added automatically in init().
},
installationFiles: []archiveFile{
{src: "{{binary}}", dst: "deb/usr/bin/{{binary}}", perm: 0755},
{src: "README.md", dst: "deb/usr/share/doc/syncthing/README.txt", perm: 0644},
{src: "LICENSE", dst: "deb/usr/share/doc/syncthing/LICENSE.txt", perm: 0644},
{src: "AUTHORS", dst: "deb/usr/share/doc/syncthing/AUTHORS.txt", perm: 0644},
{src: "man/syncthing.1", dst: "deb/usr/share/man/man1/syncthing.1", perm: 0644},
{src: "man/syncthing-config.5", dst: "deb/usr/share/man/man5/syncthing-config.5", perm: 0644},
{src: "man/syncthing-stignore.5", dst: "deb/usr/share/man/man5/syncthing-stignore.5", perm: 0644},
{src: "man/syncthing-device-ids.7", dst: "deb/usr/share/man/man7/syncthing-device-ids.7", perm: 0644},
{src: "man/syncthing-event-api.7", dst: "deb/usr/share/man/man7/syncthing-event-api.7", perm: 0644},
{src: "man/syncthing-faq.7", dst: "deb/usr/share/man/man7/syncthing-faq.7", perm: 0644},
{src: "man/syncthing-networking.7", dst: "deb/usr/share/man/man7/syncthing-networking.7", perm: 0644},
{src: "man/syncthing-rest-api.7", dst: "deb/usr/share/man/man7/syncthing-rest-api.7", perm: 0644},
{src: "man/syncthing-security.7", dst: "deb/usr/share/man/man7/syncthing-security.7", perm: 0644},
{src: "man/syncthing-versioning.7", dst: "deb/usr/share/man/man7/syncthing-versioning.7", perm: 0644},
{src: "etc/linux-systemd/system/[email protected]", dst: "deb/lib/systemd/system/[email protected]", perm: 0644},
{src: "etc/linux-systemd/system/syncthing-resume.service", dst: "deb/lib/systemd/system/syncthing-resume.service", perm: 0644},
{src: "etc/linux-systemd/user/syncthing.service", dst: "deb/usr/lib/systemd/user/syncthing.service", perm: 0644},
{src: "etc/firewall-ufw/syncthing", dst: "deb/etc/ufw/applications.d/syncthing", perm: 0644},
{src: "etc/linux-desktop/syncthing-start.desktop", dst: "deb/usr/share/applications/syncthing-start.desktop", perm: 0644},
{src: "etc/linux-desktop/syncthing-ui.desktop", dst: "deb/usr/share/applications/syncthing-ui.desktop", perm: 0644},
{src: "assets/logo-32.png", dst: "deb/usr/share/icons/hicolor/32x32/apps/syncthing.png", perm: 0644},
{src: "assets/logo-64.png", dst: "deb/usr/share/icons/hicolor/64x64/apps/syncthing.png", perm: 0644},
{src: "assets/logo-128.png", dst: "deb/usr/share/icons/hicolor/128x128/apps/syncthing.png", perm: 0644},
{src: "assets/logo-256.png", dst: "deb/usr/share/icons/hicolor/256x256/apps/syncthing.png", perm: 0644},
{src: "assets/logo-512.png", dst: "deb/usr/share/icons/hicolor/512x512/apps/syncthing.png", perm: 0644},
{src: "assets/logo-only.svg", dst: "deb/usr/share/icons/hicolor/scalable/apps/syncthing.svg", perm: 0644},
},
},
"stdiscosrv": {
name: "stdiscosrv",
debname: "syncthing-discosrv",
debdeps: []string{"libc6"},
debpre: "cmd/stdiscosrv/scripts/preinst",
description: "Syncthing Discovery Server",
buildPkgs: []string{"github.com/syncthing/syncthing/cmd/stdiscosrv"},
binaryName: "stdiscosrv", // .exe will be added automatically for Windows builds
archiveFiles: []archiveFile{
{src: "{{binary}}", dst: "{{binary}}", perm: 0755},
{src: "cmd/stdiscosrv/README.md", dst: "README.txt", perm: 0644},
{src: "LICENSE", dst: "LICENSE.txt", perm: 0644},
{src: "AUTHORS", dst: "AUTHORS.txt", perm: 0644},
},
systemdServices: []string{
"cmd/stdiscosrv/etc/linux-systemd/stdiscosrv.service",
},
installationFiles: []archiveFile{
{src: "{{binary}}", dst: "deb/usr/bin/{{binary}}", perm: 0755},
{src: "cmd/stdiscosrv/README.md", dst: "deb/usr/share/doc/syncthing-discosrv/README.txt", perm: 0644},
{src: "LICENSE", dst: "deb/usr/share/doc/syncthing-discosrv/LICENSE.txt", perm: 0644},
{src: "AUTHORS", dst: "deb/usr/share/doc/syncthing-discosrv/AUTHORS.txt", perm: 0644},
{src: "man/stdiscosrv.1", dst: "deb/usr/share/man/man1/stdiscosrv.1", perm: 0644},
{src: "cmd/stdiscosrv/etc/linux-systemd/default", dst: "deb/etc/default/syncthing-discosrv", perm: 0644},
{src: "cmd/stdiscosrv/etc/firewall-ufw/stdiscosrv", dst: "deb/etc/ufw/applications.d/stdiscosrv", perm: 0644},
},
tags: []string{"purego"},
},
"strelaysrv": {
name: "strelaysrv",
debname: "syncthing-relaysrv",
debdeps: []string{"libc6"},
debpre: "cmd/strelaysrv/scripts/preinst",
description: "Syncthing Relay Server",
buildPkgs: []string{"github.com/syncthing/syncthing/cmd/strelaysrv"},
binaryName: "strelaysrv", // .exe will be added automatically for Windows builds
archiveFiles: []archiveFile{
{src: "{{binary}}", dst: "{{binary}}", perm: 0755},
{src: "cmd/strelaysrv/README.md", dst: "README.txt", perm: 0644},
{src: "cmd/strelaysrv/LICENSE", dst: "LICENSE.txt", perm: 0644},
{src: "LICENSE", dst: "LICENSE.txt", perm: 0644},
{src: "AUTHORS", dst: "AUTHORS.txt", perm: 0644},
},
systemdServices: []string{
"cmd/strelaysrv/etc/linux-systemd/strelaysrv.service",
},
installationFiles: []archiveFile{
{src: "{{binary}}", dst: "deb/usr/bin/{{binary}}", perm: 0755},
{src: "cmd/strelaysrv/README.md", dst: "deb/usr/share/doc/syncthing-relaysrv/README.txt", perm: 0644},
{src: "cmd/strelaysrv/LICENSE", dst: "deb/usr/share/doc/syncthing-relaysrv/LICENSE.txt", perm: 0644},
{src: "LICENSE", dst: "deb/usr/share/doc/syncthing-relaysrv/LICENSE.txt", perm: 0644},
{src: "AUTHORS", dst: "deb/usr/share/doc/syncthing-relaysrv/AUTHORS.txt", perm: 0644},
{src: "man/strelaysrv.1", dst: "deb/usr/share/man/man1/strelaysrv.1", perm: 0644},
{src: "cmd/strelaysrv/etc/linux-systemd/default", dst: "deb/etc/default/syncthing-relaysrv", perm: 0644},
{src: "cmd/strelaysrv/etc/firewall-ufw/strelaysrv", dst: "deb/etc/ufw/applications.d/strelaysrv", perm: 0644},
},
},
"strelaypoolsrv": {
name: "strelaypoolsrv",
debname: "syncthing-relaypoolsrv",
debdeps: []string{"libc6"},
description: "Syncthing Relay Pool Server",
buildPkgs: []string{"github.com/syncthing/syncthing/cmd/strelaypoolsrv"},
binaryName: "strelaypoolsrv", // .exe will be added automatically for Windows builds
archiveFiles: []archiveFile{
{src: "{{binary}}", dst: "{{binary}}", perm: 0755},
{src: "cmd/strelaypoolsrv/README.md", dst: "README.txt", perm: 0644},
{src: "cmd/strelaypoolsrv/LICENSE", dst: "LICENSE.txt", perm: 0644},
{src: "AUTHORS", dst: "AUTHORS.txt", perm: 0644},
},
installationFiles: []archiveFile{
{src: "{{binary}}", dst: "deb/usr/bin/{{binary}}", perm: 0755},
{src: "cmd/strelaypoolsrv/README.md", dst: "deb/usr/share/doc/syncthing-relaypoolsrv/README.txt", perm: 0644},
{src: "cmd/strelaypoolsrv/LICENSE", dst: "deb/usr/share/doc/syncthing-relaypoolsrv/LICENSE.txt", perm: 0644},
{src: "AUTHORS", dst: "deb/usr/share/doc/syncthing-relaypoolsrv/AUTHORS.txt", perm: 0644},
},
},
}
// These are repos we need to clone to run "go generate"
type dependencyRepo struct {
path string
repo string
commit string
}
var dependencyRepos = []dependencyRepo{
{path: "xdr", repo: "https://github.com/calmh/xdr.git", commit: "08e072f9cb16"},
}
func init() {
all := targets["all"]
pkgs, _ := filepath.Glob("cmd/*")
for _, pkg := range pkgs {
pkg = filepath.Base(pkg)
if strings.HasPrefix(pkg, ".") {
// ignore dotfiles
continue
}
all.buildPkgs = append(all.buildPkgs, fmt.Sprintf("github.com/syncthing/syncthing/cmd/%s", pkg))
}
targets["all"] = all
// The "syncthing" target includes a few more files found in the "etc"
// and "extra" dirs.
syncthingPkg := targets["syncthing"]
for _, file := range listFiles("etc") {
syncthingPkg.archiveFiles = append(syncthingPkg.archiveFiles, archiveFile{src: file, dst: file, perm: 0644})
}
for _, file := range listFiles("extra") {
syncthingPkg.archiveFiles = append(syncthingPkg.archiveFiles, archiveFile{src: file, dst: file, perm: 0644})
}
for _, file := range listFiles("extra") {
syncthingPkg.installationFiles = append(syncthingPkg.installationFiles, archiveFile{src: file, dst: "deb/usr/share/doc/syncthing/" + filepath.Base(file), perm: 0644})
}
targets["syncthing"] = syncthingPkg
}
func main() {
log.SetFlags(0)
parseFlags()
if debug {
t0 := time.Now()
defer func() {
log.Println("... build completed in", time.Since(t0))
}()
}
// Invoking build.go with no parameters at all builds everything (incrementally),
// which is what you want for maximum error checking during development.
if flag.NArg() == 0 {
runCommand("install", targets["all"])
} else {
// with any command given but not a target, the target is
// "syncthing". So "go run build.go install" is "go run build.go install
// syncthing" etc.
targetName := "syncthing"
if flag.NArg() > 1 {
targetName = flag.Arg(1)
}
target, ok := targets[targetName]
if !ok {
log.Fatalln("Unknown target", target)
}
runCommand(flag.Arg(0), target)
}
}
func runCommand(cmd string, target target) {
var tags []string
if noupgrade {
tags = []string{"noupgrade"}
}
tags = append(tags, strings.Fields(extraTags)...)
switch cmd {
case "install":
install(target, tags)
metalintShort()
case "build":
build(target, tags)
case "test":
test(strings.Fields(extraTags), "github.com/syncthing/syncthing/lib/...", "github.com/syncthing/syncthing/cmd/...")
case "bench":
bench(strings.Fields(extraTags), "github.com/syncthing/syncthing/lib/...", "github.com/syncthing/syncthing/cmd/...")
case "integration":
integration(false)
case "integrationbench":
integration(true)
case "assets":
rebuildAssets()
case "proto":
proto()
case "translate":
translate()
case "transifex":
transifex()
case "tar":
buildTar(target, tags)
case "zip":
buildZip(target, tags)
case "deb":
buildDeb(target)
case "vet":
metalintShort()
case "lint":
metalintShort()
case "metalint":
metalint()
case "version":
fmt.Println(getVersion())
case "changelog":
vers, err := currentAndLatestVersions(numVersions)
if err != nil {
log.Fatal(err)
}
for _, ver := range vers {
underline := strings.Repeat("=", len(ver))
msg, err := tagMessage(ver)
if err != nil {
log.Fatal(err)
}
fmt.Printf("%s\n%s\n\n%s\n\n", ver, underline, msg)
}
default:
log.Fatalf("Unknown command %q", cmd)
}
}
func parseFlags() {
flag.StringVar(&goarch, "goarch", runtime.GOARCH, "GOARCH")
flag.StringVar(&goos, "goos", runtime.GOOS, "GOOS")
flag.StringVar(&goCmd, "gocmd", "go", "Specify `go` command")
flag.BoolVar(&noupgrade, "no-upgrade", noupgrade, "Disable upgrade functionality")
flag.StringVar(&version, "version", getVersion(), "Set compiled in version string")
flag.BoolVar(&race, "race", race, "Use race detector")
flag.StringVar(&extraTags, "tags", extraTags, "Extra tags, space separated")
flag.StringVar(&installSuffix, "installsuffix", installSuffix, "Install suffix, optional")
flag.StringVar(&pkgdir, "pkgdir", "", "Set -pkgdir parameter for `go build`")
flag.StringVar(&cc, "cc", os.Getenv("CC"), "Set CC environment variable for `go build`")
flag.BoolVar(&debugBinary, "debug-binary", debugBinary, "Create unoptimized binary to use with delve, set -gcflags='-N -l' and omit -ldflags")
flag.BoolVar(&coverage, "coverage", coverage, "Write coverage profile of tests to coverage.txt")
flag.IntVar(&numVersions, "num-versions", numVersions, "Number of versions for changelog command")
flag.StringVar(&run, "run", "", "Specify which tests to run")
flag.StringVar(&benchRun, "bench", "", "Specify which benchmarks to run")
flag.BoolVar(&withNextGenGUI, "with-next-gen-gui", withNextGenGUI, "Also build 'newgui'")
flag.Parse()
}
func test(tags []string, pkgs ...string) {
lazyRebuildAssets()
tags = append(tags, "purego")
args := []string{"test", "-short", "-timeout", timeout, "-tags", strings.Join(tags, " ")}
if runtime.GOARCH == "amd64" {
switch runtime.GOOS {
case "darwin", "linux", "freebsd": // , "windows": # See https://github.com/golang/go/issues/27089
args = append(args, "-race")
}
}
if coverage {
args = append(args, "-covermode", "atomic", "-coverprofile", "coverage.txt", "-coverpkg", strings.Join(pkgs, ","))
}
args = append(args, runArgs()...)
runPrint(goCmd, append(args, pkgs...)...)
}
func bench(tags []string, pkgs ...string) {
lazyRebuildAssets()
args := append([]string{"test", "-run", "NONE", "-tags", strings.Join(tags, " ")}, benchArgs()...)
runPrint(goCmd, append(args, pkgs...)...)
}
func integration(bench bool) {
lazyRebuildAssets()
args := []string{"test", "-v", "-timeout", "60m", "-tags"}
tags := "purego,integration"
if bench {
tags += ",benchmark"
}
args = append(args, tags)
args = append(args, runArgs()...)
if bench {
if run == "" {
args = append(args, "-run", "Benchmark")
}
args = append(args, benchArgs()...)
}
args = append(args, "./test")
fmt.Println(args)
runPrint(goCmd, args...)
}
func runArgs() []string {
if run == "" {
return nil
}
return []string{"-run", run}
}
func benchArgs() []string {
if benchRun == "" {
return []string{"-bench", "."}
}
return []string{"-bench", benchRun}
}
func install(target target, tags []string) {
if (target.name == "syncthing" || target.name == "") && !withNextGenGUI {
log.Println("Notice: Next generation GUI will not be built; see --with-next-gen-gui.")
}
lazyRebuildAssets()
tags = append(target.tags, tags...)
cwd, err := os.Getwd()
if err != nil {
log.Fatal(err)
}
os.Setenv("GOBIN", filepath.Join(cwd, "bin"))
setBuildEnvVars()
// On Windows generate a special file which the Go compiler will
// automatically use when generating Windows binaries to set things like
// the file icon, version, etc.
if goos == "windows" {
sysoPath, err := shouldBuildSyso(cwd)
if err != nil {
log.Printf("Warning: Windows binaries will not have file information encoded: %v", err)
}
defer shouldCleanupSyso(sysoPath)
}
args := []string{"install", "-v", "-trimpath"}
args = appendParameters(args, tags, target.buildPkgs...)
runPrint(goCmd, args...)
}
func build(target target, tags []string) {
if (target.name == "syncthing" || target.name == "") && !withNextGenGUI {
log.Println("Notice: Next generation GUI will not be built; see --with-next-gen-gui.")
}
lazyRebuildAssets()
tags = append(target.tags, tags...)
rmr(target.BinaryName())
setBuildEnvVars()
// On Windows generate a special file which the Go compiler will
// automatically use when generating Windows binaries to set things like
// the file icon, version, etc.
if goos == "windows" {
cwd, err := os.Getwd()
if err != nil {
log.Fatal(err)
}
sysoPath, err := shouldBuildSyso(cwd)
if err != nil {
log.Printf("Warning: Windows binaries will not have file information encoded: %v", err)
}
defer shouldCleanupSyso(sysoPath)
}
args := []string{"build", "-v", "-trimpath"}
args = appendParameters(args, tags, target.buildPkgs...)
runPrint(goCmd, args...)
}
func setBuildEnvVars() {
os.Setenv("GOOS", goos)
os.Setenv("GOARCH", goarch)
os.Setenv("CC", cc)
if os.Getenv("CGO_ENABLED") == "" {
switch goos {
case "darwin", "solaris":
default:
os.Setenv("CGO_ENABLED", "0")
}
}
}
func appendParameters(args []string, tags []string, pkgs ...string) []string {
if pkgdir != "" {
args = append(args, "-pkgdir", pkgdir)
}
if len(tags) > 0 {
args = append(args, "-tags", strings.Join(tags, " "))
}
if installSuffix != "" {
args = append(args, "-installsuffix", installSuffix)
}
if race {
args = append(args, "-race")
}
if !debugBinary {
// Regular binaries get version tagged and skip some debug symbols
args = append(args, "-ldflags", ldflags(tags))
} else {
// -gcflags to disable optimizations and inlining. Skip -ldflags
// because `Could not launch program: decoding dwarf section info at
// offset 0x0: too short` on 'dlv exec ...' see
// https://github.com/go-delve/delve/issues/79
args = append(args, "-gcflags", "-N -l")
}
return append(args, pkgs...)
}
func buildTar(target target, tags []string) {
name := archiveName(target)
filename := name + ".tar.gz"
for _, tag := range tags {
if tag == "noupgrade" {
name += "-noupgrade"
break
}
}
build(target, tags)
codesign(target)
for i := range target.archiveFiles {
target.archiveFiles[i].src = strings.Replace(target.archiveFiles[i].src, "{{binary}}", target.BinaryName(), 1)
target.archiveFiles[i].dst = strings.Replace(target.archiveFiles[i].dst, "{{binary}}", target.BinaryName(), 1)
target.archiveFiles[i].dst = name + "/" + target.archiveFiles[i].dst
}
tarGz(filename, target.archiveFiles)
fmt.Println(filename)
}
func buildZip(target target, tags []string) {
name := archiveName(target)
filename := name + ".zip"
for _, tag := range tags {
if tag == "noupgrade" {
name += "-noupgrade"
break
}
}
build(target, tags)
codesign(target)
for i := range target.archiveFiles {
target.archiveFiles[i].src = strings.Replace(target.archiveFiles[i].src, "{{binary}}", target.BinaryName(), 1)
target.archiveFiles[i].dst = strings.Replace(target.archiveFiles[i].dst, "{{binary}}", target.BinaryName(), 1)
target.archiveFiles[i].dst = name + "/" + target.archiveFiles[i].dst
}
zipFile(filename, target.archiveFiles)
fmt.Println(filename)
}
func buildDeb(target target) {
os.RemoveAll("deb")
// "goarch" here is set to whatever the Debian packages expect. We correct
// it to what we actually know how to build and keep the Debian variant
// name in "debarch".
debarch := goarch
switch goarch {
case "i386":
goarch = "386"
case "armel", "armhf":
goarch = "arm"
}
build(target, []string{"noupgrade"})
for i := range target.installationFiles {
target.installationFiles[i].src = strings.Replace(target.installationFiles[i].src, "{{binary}}", target.BinaryName(), 1)
target.installationFiles[i].dst = strings.Replace(target.installationFiles[i].dst, "{{binary}}", target.BinaryName(), 1)
}
for _, af := range target.installationFiles {
if err := copyFile(af.src, af.dst, af.perm); err != nil {
log.Fatal(err)
}
}
maintainer := "Syncthing Release Management <[email protected]>"
debver := version
if strings.HasPrefix(debver, "v") {
debver = debver[1:]
// Debian interprets dashes as separator between main version and
// Debian package version, and thus thinks 0.14.26-rc.1 is better
// than just 0.14.26. This rectifies that.
debver = strings.Replace(debver, "-", "~", -1)
}
args := []string{
"-t", "deb",
"-s", "dir",
"-C", "deb",
"-n", target.debname,
"-v", debver,
"-a", debarch,
"-m", maintainer,
"--vendor", maintainer,
"--description", target.description,
"--url", "https://syncthing.net/",
"--license", "MPL-2",
}
for _, dep := range target.debdeps {
args = append(args, "-d", dep)
}
for _, service := range target.systemdServices {
args = append(args, "--deb-systemd", service)
}
if target.debpost != "" {
args = append(args, "--after-upgrade", target.debpost)
}
if target.debpre != "" {
args = append(args, "--before-install", target.debpre)
}
runPrint("fpm", args...)
}
func shouldBuildSyso(dir string) (string, error) {
type M map[string]interface{}
version := getVersion()
version = strings.TrimPrefix(version, "v")
major, minor, patch := semanticVersion()
bs, err := json.Marshal(M{
"FixedFileInfo": M{
"FileVersion": M{
"Major": major,
"Minor": minor,
"Patch": patch,
},
"ProductVersion": M{
"Major": major,
"Minor": minor,
"Patch": patch,
},
},
"StringFileInfo": M{
"CompanyName": "The Syncthing Authors",
"FileDescription": "Syncthing - Open Source Continuous File Synchronization",
"FileVersion": version,
"InternalName": "syncthing",
"LegalCopyright": "The Syncthing Authors",
"OriginalFilename": "syncthing",
"ProductName": "Syncthing",
"ProductVersion": version,
},
"IconPath": "assets/logo.ico",
})
if err != nil {
return "", err
}
jsonPath := filepath.Join(dir, "versioninfo.json")
err = ioutil.WriteFile(jsonPath, bs, 0644)
if err != nil {
return "", errors.New("failed to create " + jsonPath + ": " + err.Error())
}
defer func() {
if err := os.Remove(jsonPath); err != nil {
log.Printf("Warning: unable to remove generated %s: %v. Please remove it manually.", jsonPath, err)
}
}()
sysoPath := filepath.Join(dir, "cmd", "syncthing", "resource.syso")
if _, err := runError("goversioninfo", "-o", sysoPath); err != nil {
return "", errors.New("failed to create " + sysoPath + ": " + err.Error())
}
return sysoPath, nil
}
func shouldCleanupSyso(sysoFilePath string) {
if sysoFilePath == "" {
return
}
if err := os.Remove(sysoFilePath); err != nil {
log.Printf("Warning: unable to remove generated %s: %v. Please remove it manually.", sysoFilePath, err)
}
}
// copyFile copies a file from src to dst, ensuring the containing directory
// exists. The permission bits are copied as well. If dst already exists and
// the contents are identical to src the modification time is not updated.
func copyFile(src, dst string, perm os.FileMode) error {
in, err := ioutil.ReadFile(src)
if err != nil {
return err
}
out, err := ioutil.ReadFile(dst)
if err != nil {
// The destination probably doesn't exist, we should create
// it.
goto copy
}
if bytes.Equal(in, out) {
// The permission bits may have changed without the contents
// changing so we always mirror them.
os.Chmod(dst, perm)
return nil
}
copy:
os.MkdirAll(filepath.Dir(dst), 0777)
if err := ioutil.WriteFile(dst, in, perm); err != nil {
return err
}
return nil
}
func listFiles(dir string) []string {
var res []string
filepath.Walk(dir, func(path string, fi os.FileInfo, err error) error {
if err != nil {
return err
}
if fi.Mode().IsRegular() {
res = append(res, path)
}
return nil
})
return res
}
func rebuildAssets() {
os.Setenv("SOURCE_DATE_EPOCH", fmt.Sprint(buildStamp()))
runPrint(goCmd, "generate", "github.com/syncthing/syncthing/lib/api/auto", "github.com/syncthing/syncthing/cmd/strelaypoolsrv/auto")
}
func lazyRebuildAssets() {
shouldRebuild := shouldRebuildAssets("lib/api/auto/gui.files.go", "gui") ||
shouldRebuildAssets("cmd/strelaypoolsrv/auto/gui.files.go", "cmd/strelaypoolsrv/gui")
if withNextGenGUI {
shouldRebuild = buildNextGenGUI() || shouldRebuild
}
if shouldRebuild {
rebuildAssets()
}
}
func buildNextGenGUI() bool {
// Check if we need to run the npm process, and if so also set the flag
// to rebuild Go assets afterwards. The index.html is regenerated every
// time by the build process. This assumes the new GUI ends up in
// next-gen-gui/dist/next-gen-gui.
if !shouldRebuildAssets("gui/next-gen-gui/index.html", "next-gen-gui") {
// The GUI is up to date.
return false
}
runPrintInDir("next-gen-gui", "npm", "install")
runPrintInDir("next-gen-gui", "npm", "run", "build", "--", "--prod", "--subresource-integrity")
rmr("gui/tech-ui")
for _, src := range listFiles("next-gen-gui/dist") {
rel, _ := filepath.Rel("next-gen-gui/dist", src)
dst := filepath.Join("gui", rel)
if err := copyFile(src, dst, 0644); err != nil {
fmt.Println("copy:", err)
os.Exit(1)
}
}
return true
}
func shouldRebuildAssets(target, srcdir string) bool {
info, err := os.Stat(target)
if err != nil {
// If the file doesn't exist, we must rebuild it
return true
}
// Check if any of the files in gui/ are newer than the asset file. If
// so we should rebuild it.
currentBuild := info.ModTime()
assetsAreNewer := false
stop := errors.New("no need to iterate further")
filepath.Walk(srcdir, func(path string, info os.FileInfo, err error) error {
if err != nil {
return err
}
if info.ModTime().After(currentBuild) {
assetsAreNewer = true
return stop
}
return nil
})
return assetsAreNewer
}
func proto() {
pv := protobufVersion()
dependencyRepos = append(dependencyRepos,
dependencyRepo{path: "protobuf", repo: "https://github.com/gogo/protobuf.git", commit: pv},
)
runPrint(goCmd, "get", fmt.Sprintf("github.com/gogo/protobuf/protoc-gen-gogofast@%v", pv))
os.MkdirAll("repos", 0755)
for _, dep := range dependencyRepos {
path := filepath.Join("repos", dep.path)
if _, err := os.Stat(path); err != nil {
runPrintInDir("repos", "git", "clone", dep.repo, dep.path)
} else {
runPrintInDir(path, "git", "fetch")
}
runPrintInDir(path, "git", "checkout", dep.commit)
}
runPrint(goCmd, "generate", "github.com/syncthing/syncthing/lib/...", "github.com/syncthing/syncthing/cmd/stdiscosrv")
runPrint(goCmd, "generate", "proto/generate.go")
}
func translate() {
os.Chdir("gui/default/assets/lang")
runPipe("lang-en-new.json", goCmd, "run", "../../../../script/translate.go", "lang-en.json", "../../../")
os.Remove("lang-en.json")
err := os.Rename("lang-en-new.json", "lang-en.json")
if err != nil {
log.Fatal(err)
}
os.Chdir("../../../..")
}
func transifex() {
os.Chdir("gui/default/assets/lang")
runPrint(goCmd, "run", "../../../../script/transifexdl.go")
}
func ldflags(tags []string) string {
b := new(strings.Builder)
b.WriteString("-w")
fmt.Fprintf(b, " -X github.com/syncthing/syncthing/lib/build.Version=%s", version)
fmt.Fprintf(b, " -X github.com/syncthing/syncthing/lib/build.Stamp=%d", buildStamp())
fmt.Fprintf(b, " -X github.com/syncthing/syncthing/lib/build.User=%s", buildUser())
fmt.Fprintf(b, " -X github.com/syncthing/syncthing/lib/build.Host=%s", buildHost())
fmt.Fprintf(b, " -X github.com/syncthing/syncthing/lib/build.Tags=%s", strings.Join(tags, ","))
if v := os.Getenv("EXTRA_LDFLAGS"); v != "" {
fmt.Fprintf(b, " %s", v)
}
return b.String()
}
func rmr(paths ...string) {
for _, path := range paths {
if debug {
log.Println("rm -r", path)
}
os.RemoveAll(path)
}
}
func getReleaseVersion() (string, error) {
bs, err := ioutil.ReadFile("RELEASE")
if err != nil {
return "", err
}
return string(bytes.TrimSpace(bs)), nil
}
func getGitVersion() (string, error) {
// The current version as Git sees it
bs, err := runError("git", "describe", "--always", "--dirty", "--abbrev=8")
if err != nil {
return "", err
}
vcur := string(bs)
// The closest current tag name
bs, err = runError("git", "describe", "--always", "--abbrev=0")
if err != nil {
return "", err
}
v0 := string(bs)
// To be more semantic-versionish and ensure proper ordering in our
// upgrade process, we make sure there's only one hypen in the version.
versionRe := regexp.MustCompile(`-([0-9]{1,3}-g[0-9a-f]{5,10}(-dirty)?)`)
if m := versionRe.FindStringSubmatch(vcur); len(m) > 0 {
suffix := strings.ReplaceAll(m[1], "-", ".")
if strings.Contains(v0, "-") {
// We're based of a tag with a prerelease string. We can just
// add our dev stuff directly.
return fmt.Sprintf("%s.dev.%s", v0, suffix), nil
}
// We're based on a release version. We need to bump the patch
// version and then add a -dev prerelease string.
next := nextPatchVersion(v0)
return fmt.Sprintf("%s-dev.%s", next, suffix), nil
}
return vcur, nil
}
func getVersion() string {
// First try for a RELEASE file,
if ver, err := getReleaseVersion(); err == nil {
return ver
}
// ... then see if we have a Git tag.
if ver, err := getGitVersion(); err == nil {
if strings.Contains(ver, "-") {
// The version already contains a hash and stuff. See if we can
// find a current branch name to tack onto it as well.
return ver + getBranchSuffix()
}
return ver
}
// This seems to be a dev build.
return "unknown-dev"
}
func semanticVersion() (major, minor, patch int) {
r := regexp.MustCompile(`v(\d+)\.(\d+).(\d+)`)
matches := r.FindStringSubmatch(getVersion())
if len(matches) != 4 {
return 0, 0, 0
}
var ints [3]int
for i, s := range matches[1:] {
ints[i], _ = strconv.Atoi(s)
}
return ints[0], ints[1], ints[2]
}
func getBranchSuffix() string {
bs, err := runError("git", "branch", "-a", "--contains")
if err != nil {
return ""
}
branches := strings.Split(string(bs), "\n")
if len(branches) == 0 {
return ""
}
branch := ""
for i, candidate := range branches {
if strings.HasPrefix(candidate, "*") {
// This is the current branch. Select it!
branch = strings.TrimLeft(candidate, " \t*")
break
} else if i == 0 {
// Otherwise the first branch in the list will do.
branch = strings.TrimSpace(branch)
}
}