syncthing/build.go
Jakob Borg 77970d5113
refactor: use modern Protobuf encoder (#9817)
At a high level, this is what I've done and why:

- I'm moving the protobuf generation for the `protocol`, `discovery` and
`db` packages to the modern alternatives, and using `buf` to generate
because it's nice and simple.
- After trying various approaches on how to integrate the new types with
the existing code, I opted for splitting off our own data model types
from the on-the-wire generated types. This means we can have a
`FileInfo` type with nicer ergonomics and lots of methods, while the
protobuf generated type stays clean and close to the wire protocol. It
does mean copying between the two when required, which certainly adds a
small amount of inefficiency. If we want to walk this back in the future
and use the raw generated type throughout, that's possible, this however
makes the refactor smaller (!) as it doesn't change everything about the
type for everyone at the same time.
- I have simply removed in cold blood a significant number of old
database migrations. These depended on previous generations of generated
messages of various kinds and were annoying to support in the new
fashion. The oldest supported database version now is the one from
Syncthing 1.9.0 from Sep 7, 2020.
- I changed config structs to be regular manually defined structs.

For the sake of discussion, some things I tried that turned out not to
work...

### Embedding / wrapping

Embedding the protobuf generated structs in our existing types as a data
container and keeping our methods and stuff:

```
package protocol

type FileInfo struct {
  *generated.FileInfo
}
```

This generates a lot of problems because the internal shape of the
generated struct is quite different (different names, different types,
more pointers), because initializing it doesn't work like you'd expect
(i.e., you end up with an embedded nil pointer and a panic), and because
the types of child types don't get wrapped. That is, even if we also
have a similar wrapper around a `Vector`, that's not the type you get
when accessing `someFileInfo.Version`, you get the `*generated.Vector`
that doesn't have methods, etc.

### Aliasing

```
package protocol

type FileInfo = generated.FileInfo
```

Doesn't help because you can't attach methods to it, plus all the above.

### Generating the types into the target package like we do now and
attaching methods

This fails because of the different shape of the generated type (as in
the embedding case above) plus the generated struct already has a bunch
of methods that we can't necessarily override properly (like `String()`
and a bunch of getters).

### Methods to functions

I considered just moving all the methods we attach to functions in a
specific package, so that for example

```
package protocol

func (f FileInfo) Equal(other FileInfo) bool
```

would become

```
package fileinfos

func Equal(a, b *generated.FileInfo) bool
```

and this would mostly work, but becomes quite verbose and cumbersome,
and somewhat limits discoverability (you can't see what methods are
available on the type in auto completions, etc). In the end I did this
in some cases, like in the database layer where a lot of things like
`func (fv *FileVersion) IsEmpty() bool` becomes `func fvIsEmpty(fv
*generated.FileVersion)` because they were anyway just internal methods.

Fixes #8247
2024-12-01 16:50:17 +01:00

1565 lines
42 KiB
Go

// 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/.
//go:build tools
// +build tools
package main
import (
"archive/tar"
"archive/zip"
"bytes"
"compress/flate"
"compress/gzip"
"encoding/base64"
"encoding/json"
"errors"
"flag"
"fmt"
"io"
"log"
"os"
"os/exec"
"os/user"
"path/filepath"
"regexp"
"runtime"
"strconv"
"strings"
"text/template"
"time"
buildpkg "github.com/syncthing/syncthing/lib/build"
"github.com/syncthing/syncthing/lib/upgrade"
"sigs.k8s.io/yaml"
)
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
buildOut string
debugBinary bool
coverage bool
long bool
timeout = "120s"
longTimeout = "600s"
numVersions = 5
withNextGenGUI = os.Getenv("BUILD_NEXT_GEN_GUI") != ""
)
type target struct {
name string
debname string
debdeps []string
debpre string
description string
buildPkgs []string
binaryName string
archiveFiles []archiveFile
systemdService 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"},
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: 0o755},
{src: "README.md", dst: "README.txt", perm: 0o644},
{src: "LICENSE", dst: "LICENSE.txt", perm: 0o644},
{src: "AUTHORS", dst: "AUTHORS.txt", perm: 0o644},
// All files from etc/ and extra/ added automatically in init().
},
systemdService: "syncthing@*.service",
installationFiles: []archiveFile{
{src: "{{binary}}", dst: "deb/usr/bin/{{binary}}", perm: 0o755},
{src: "README.md", dst: "deb/usr/share/doc/syncthing/README.txt", perm: 0o644},
{src: "LICENSE", dst: "deb/usr/share/doc/syncthing/LICENSE.txt", perm: 0o644},
{src: "AUTHORS", dst: "deb/usr/share/doc/syncthing/AUTHORS.txt", perm: 0o644},
{src: "man/syncthing.1", dst: "deb/usr/share/man/man1/syncthing.1", perm: 0o644},
{src: "man/syncthing-config.5", dst: "deb/usr/share/man/man5/syncthing-config.5", perm: 0o644},
{src: "man/syncthing-stignore.5", dst: "deb/usr/share/man/man5/syncthing-stignore.5", perm: 0o644},
{src: "man/syncthing-device-ids.7", dst: "deb/usr/share/man/man7/syncthing-device-ids.7", perm: 0o644},
{src: "man/syncthing-event-api.7", dst: "deb/usr/share/man/man7/syncthing-event-api.7", perm: 0o644},
{src: "man/syncthing-faq.7", dst: "deb/usr/share/man/man7/syncthing-faq.7", perm: 0o644},
{src: "man/syncthing-networking.7", dst: "deb/usr/share/man/man7/syncthing-networking.7", perm: 0o644},
{src: "man/syncthing-rest-api.7", dst: "deb/usr/share/man/man7/syncthing-rest-api.7", perm: 0o644},
{src: "man/syncthing-security.7", dst: "deb/usr/share/man/man7/syncthing-security.7", perm: 0o644},
{src: "man/syncthing-versioning.7", dst: "deb/usr/share/man/man7/syncthing-versioning.7", perm: 0o644},
{src: "etc/linux-systemd/system/syncthing@.service", dst: "deb/lib/systemd/system/syncthing@.service", perm: 0o644},
{src: "etc/linux-systemd/user/syncthing.service", dst: "deb/usr/lib/systemd/user/syncthing.service", perm: 0o644},
{src: "etc/linux-sysctl/30-syncthing.conf", dst: "deb/usr/lib/sysctl.d/30-syncthing.conf", perm: 0o644},
{src: "etc/firewall-ufw/syncthing", dst: "deb/etc/ufw/applications.d/syncthing", perm: 0o644},
{src: "etc/linux-desktop/syncthing-start.desktop", dst: "deb/usr/share/applications/syncthing-start.desktop", perm: 0o644},
{src: "etc/linux-desktop/syncthing-ui.desktop", dst: "deb/usr/share/applications/syncthing-ui.desktop", perm: 0o644},
{src: "assets/logo-32.png", dst: "deb/usr/share/icons/hicolor/32x32/apps/syncthing.png", perm: 0o644},
{src: "assets/logo-64.png", dst: "deb/usr/share/icons/hicolor/64x64/apps/syncthing.png", perm: 0o644},
{src: "assets/logo-128.png", dst: "deb/usr/share/icons/hicolor/128x128/apps/syncthing.png", perm: 0o644},
{src: "assets/logo-256.png", dst: "deb/usr/share/icons/hicolor/256x256/apps/syncthing.png", perm: 0o644},
{src: "assets/logo-512.png", dst: "deb/usr/share/icons/hicolor/512x512/apps/syncthing.png", perm: 0o644},
{src: "assets/logo-only.svg", dst: "deb/usr/share/icons/hicolor/scalable/apps/syncthing.svg", perm: 0o644},
},
},
"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: 0o755},
{src: "cmd/stdiscosrv/README.md", dst: "README.txt", perm: 0o644},
{src: "LICENSE", dst: "LICENSE.txt", perm: 0o644},
{src: "AUTHORS", dst: "AUTHORS.txt", perm: 0o644},
},
systemdService: "stdiscosrv.service",
installationFiles: []archiveFile{
{src: "{{binary}}", dst: "deb/usr/bin/{{binary}}", perm: 0o755},
{src: "cmd/stdiscosrv/README.md", dst: "deb/usr/share/doc/syncthing-discosrv/README.txt", perm: 0o644},
{src: "LICENSE", dst: "deb/usr/share/doc/syncthing-discosrv/LICENSE.txt", perm: 0o644},
{src: "AUTHORS", dst: "deb/usr/share/doc/syncthing-discosrv/AUTHORS.txt", perm: 0o644},
{src: "man/stdiscosrv.1", dst: "deb/usr/share/man/man1/stdiscosrv.1", perm: 0o644},
{src: "cmd/stdiscosrv/etc/linux-systemd/stdiscosrv.service", dst: "deb/lib/systemd/system/stdiscosrv.service", perm: 0o644},
{src: "cmd/stdiscosrv/etc/linux-systemd/default", dst: "deb/etc/default/syncthing-discosrv", perm: 0o644},
{src: "cmd/stdiscosrv/etc/firewall-ufw/stdiscosrv", dst: "deb/etc/ufw/applications.d/stdiscosrv", perm: 0o644},
},
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: 0o755},
{src: "cmd/strelaysrv/README.md", dst: "README.txt", perm: 0o644},
{src: "cmd/strelaysrv/LICENSE", dst: "LICENSE.txt", perm: 0o644},
{src: "LICENSE", dst: "LICENSE.txt", perm: 0o644},
{src: "AUTHORS", dst: "AUTHORS.txt", perm: 0o644},
},
systemdService: "strelaysrv.service",
installationFiles: []archiveFile{
{src: "{{binary}}", dst: "deb/usr/bin/{{binary}}", perm: 0o755},
{src: "cmd/strelaysrv/README.md", dst: "deb/usr/share/doc/syncthing-relaysrv/README.txt", perm: 0o644},
{src: "cmd/strelaysrv/LICENSE", dst: "deb/usr/share/doc/syncthing-relaysrv/LICENSE.txt", perm: 0o644},
{src: "LICENSE", dst: "deb/usr/share/doc/syncthing-relaysrv/LICENSE.txt", perm: 0o644},
{src: "AUTHORS", dst: "deb/usr/share/doc/syncthing-relaysrv/AUTHORS.txt", perm: 0o644},
{src: "man/strelaysrv.1", dst: "deb/usr/share/man/man1/strelaysrv.1", perm: 0o644},
{src: "cmd/strelaysrv/etc/linux-systemd/strelaysrv.service", dst: "deb/lib/systemd/system/strelaysrv.service", perm: 0o644},
{src: "cmd/strelaysrv/etc/linux-systemd/default", dst: "deb/etc/default/syncthing-relaysrv", perm: 0o644},
{src: "cmd/strelaysrv/etc/firewall-ufw/strelaysrv", dst: "deb/etc/ufw/applications.d/strelaysrv", perm: 0o644},
},
},
"strelaypoolsrv": {
name: "strelaypoolsrv",
debname: "syncthing-relaypoolsrv",
debdeps: []string{"libc6"},
description: "Syncthing Relay Pool Server",
buildPkgs: []string{"github.com/syncthing/syncthing/cmd/infra/strelaypoolsrv"},
binaryName: "strelaypoolsrv", // .exe will be added automatically for Windows builds
archiveFiles: []archiveFile{
{src: "{{binary}}", dst: "{{binary}}", perm: 0o755},
{src: "cmd/infra/strelaypoolsrv/README.md", dst: "README.txt", perm: 0o644},
{src: "cmd/infra/strelaypoolsrv/LICENSE", dst: "LICENSE.txt", perm: 0o644},
{src: "AUTHORS", dst: "AUTHORS.txt", perm: 0o644},
},
installationFiles: []archiveFile{
{src: "{{binary}}", dst: "deb/usr/bin/{{binary}}", perm: 0o755},
{src: "cmd/infra/strelaypoolsrv/README.md", dst: "deb/usr/share/doc/syncthing-relaypoolsrv/README.txt", perm: 0o644},
{src: "cmd/infra/strelaypoolsrv/LICENSE", dst: "deb/usr/share/doc/syncthing-relaypoolsrv/LICENSE.txt", perm: 0o644},
{src: "AUTHORS", dst: "deb/usr/share/doc/syncthing-relaypoolsrv/AUTHORS.txt", perm: 0o644},
},
},
"stupgrades": {
name: "stupgrades",
description: "Syncthing Upgrade Check Server",
buildPkgs: []string{"github.com/syncthing/syncthing/cmd/infra/stupgrades"},
binaryName: "stupgrades",
},
"stcrashreceiver": {
name: "stcrashreceiver",
description: "Syncthing Crash Server",
buildPkgs: []string{"github.com/syncthing/syncthing/cmd/infra/stcrashreceiver"},
binaryName: "stcrashreceiver",
},
"ursrv": {
name: "ursrv",
description: "Syncthing Usage Reporting Server",
buildPkgs: []string{"github.com/syncthing/syncthing/cmd/infra/ursrv"},
binaryName: "ursrv",
},
}
func initTargets() {
all := targets["all"]
pkgs, _ := filepath.Glob("cmd/*")
for _, pkg := range pkgs {
if files, err := filepath.Glob(pkg + "/*.go"); err != nil || len(files) == 0 {
// No go files in the directory
continue
}
all.buildPkgs = append(all.buildPkgs, fmt.Sprintf("github.com/syncthing/syncthing/%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: 0o644})
}
for _, file := range listFiles("extra") {
syncthingPkg.archiveFiles = append(syncthingPkg.archiveFiles, archiveFile{src: file, dst: file, perm: 0o644})
}
for _, file := range listFiles("extra") {
syncthingPkg.installationFiles = append(syncthingPkg.installationFiles, archiveFile{src: file, dst: "deb/usr/share/doc/syncthing/" + filepath.Base(file), perm: 0o644})
}
targets["syncthing"] = syncthingPkg
}
func main() {
log.SetFlags(0)
parseFlags()
if debug {
t0 := time.Now()
defer func() {
log.Println("... build completed in", time.Since(t0))
}()
}
initTargets()
// 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 "update-deps":
updateDependencies()
case "proto":
proto()
case "testmocks":
testmocks()
case "translate":
translate()
case "transifex":
transifex()
case "weblate":
weblate()
case "tar":
buildTar(target, tags)
writeCompatJSON()
case "zip":
buildZip(target, tags)
writeCompatJSON()
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.BoolVar(&long, "long", long, "Run tests without the -short flag")
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.StringVar(&buildOut, "build-out", "", "Set the '-o' value for 'go build'")
flag.Parse()
}
func test(tags []string, pkgs ...string) {
lazyRebuildAssets()
tags = append(tags, "purego")
args := []string{"test", "-tags", strings.Join(tags, " ")}
if long {
timeout = longTimeout
} else {
args = append(args, "-short")
}
args = append(args, "-timeout", timeout)
if runtime.GOARCH == "amd64" {
switch runtime.GOOS {
case buildpkg.Darwin, buildpkg.Linux, buildpkg.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"}
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"}
if buildOut != "" {
args = append(args, "-o", buildOut)
}
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, "-trimpath", "-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", "all=-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 <release@syncthing.net>"
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)
}
if target.systemdService != "" {
debpost, err := createPostInstScript(target)
defer os.Remove(debpost)
if err != nil {
log.Fatal(err)
}
args = append(args, "--after-upgrade", debpost)
}
if target.debpre != "" {
args = append(args, "--before-install", target.debpre)
}
runPrint("fpm", args...)
}
func createPostInstScript(target target) (string, error) {
scriptname := filepath.Join("script", "deb-post-inst.template")
t, err := template.ParseFiles(scriptname)
if err != nil {
return "", err
}
scriptname = strings.TrimSuffix(scriptname, ".template")
w, err := os.Create(scriptname)
if err != nil {
return "", err
}
defer w.Close()
if err = t.Execute(w, struct {
Service, Command string
}{
target.systemdService, target.binaryName,
}); err != nil {
return "", err
}
return scriptname, nil
}
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 = os.WriteFile(jsonPath, bs, 0o644)
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")
// See https://github.com/josephspurrier/goversioninfo#command-line-flags
armOption := ""
if strings.Contains(goarch, "arm") {
armOption = "-arm=true"
}
if _, err := runError("goversioninfo", "-o", sysoPath, armOption); 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 := os.ReadFile(src)
if err != nil {
return err
}
out, err := os.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), 0o777)
if err := os.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/infra/strelaypoolsrv/auto")
}
func lazyRebuildAssets() {
shouldRebuild := shouldRebuildAssets("lib/api/auto/gui.files.go", "gui") ||
shouldRebuildAssets("cmd/infra/strelaypoolsrv/auto/gui.files.go", "cmd/infra/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, 0o644); 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 updateDependencies() {
// Figure out desired Go version
bs, err := os.ReadFile("go.mod")
if err != nil {
log.Fatal(err)
}
re := regexp.MustCompile(`(?m)^go\s+([0-9.]+)`)
matches := re.FindSubmatch(bs)
if len(matches) != 2 {
log.Fatal("failed to parse go.mod")
}
goVersion := string(matches[1])
runPrint(goCmd, "get", "-u", "./...")
runPrint(goCmd, "mod", "tidy", "-go="+goVersion, "-compat="+goVersion)
// We might have updated the protobuf package and should regenerate to match.
proto()
}
func proto() {
// buf needs to be installed
// https://buf.build/docs/installation/
runPrint("buf", "generate")
}
func testmocks() {
args := []string{
"generate",
"github.com/syncthing/syncthing/lib/config",
"github.com/syncthing/syncthing/lib/connections",
"github.com/syncthing/syncthing/lib/discover",
"github.com/syncthing/syncthing/lib/events",
"github.com/syncthing/syncthing/lib/logger",
"github.com/syncthing/syncthing/lib/model",
"github.com/syncthing/syncthing/lib/protocol",
}
runPrint(goCmd, args...)
}
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 weblate() {
os.Chdir("gui/default/assets/lang")
runPrint(goCmd, "run", "../../../../script/weblatedl.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 := os.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 hyphen 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)
}
}
if branch == "" {
return ""
}
// The branch name may be on the form "remotes/origin/foo" from which we
// just want "foo".
parts := strings.Split(branch, "/")
if len(parts) == 0 || len(parts[len(parts)-1]) == 0 {
return ""
}
branch = parts[len(parts)-1]
switch branch {
case "release", "main":
// these are not special
return ""
}
if strings.HasPrefix(branch, "release-") {
// release branches are not special
return ""
}
validBranchRe := regexp.MustCompile(`^[a-zA-Z0-9_.-]+$`)
if !validBranchRe.MatchString(branch) {
// There's some odd stuff in the branch name. Better skip it.
return ""
}
return "-" + branch
}
func buildStamp() int64 {
// If SOURCE_DATE_EPOCH is set, use that.
if s, _ := strconv.ParseInt(os.Getenv("SOURCE_DATE_EPOCH"), 10, 64); s > 0 {
return s
}
// Try to get the timestamp of the latest commit.
bs, err := runError("git", "show", "-s", "--format=%ct")
if err != nil {
// Fall back to "now".
return time.Now().Unix()
}
s, _ := strconv.ParseInt(string(bs), 10, 64)
return s
}
func buildUser() string {
if v := os.Getenv("BUILD_USER"); v != "" {
return v
}
u, err := user.Current()
if err != nil {
return "unknown-user"
}
return strings.Replace(u.Username, " ", "-", -1)
}
func buildHost() string {
if v := os.Getenv("BUILD_HOST"); v != "" {
return v
}
h, err := os.Hostname()
if err != nil {
return "unknown-host"
}
return h
}
func buildArch() string {
os := goos
if os == "darwin" {
os = "macos"
}
return fmt.Sprintf("%s-%s", os, goarch)
}
func archiveName(target target) string {
return fmt.Sprintf("%s-%s-%s", target.name, buildArch(), version)
}
func runError(cmd string, args ...string) ([]byte, error) {
if debug {
t0 := time.Now()
log.Println("runError:", cmd, strings.Join(args, " "))
defer func() {
log.Println("... in", time.Since(t0))
}()
}
ecmd := exec.Command(cmd, args...)
bs, err := ecmd.CombinedOutput()
return bytes.TrimSpace(bs), err
}
func runPrint(cmd string, args ...string) {
runPrintInDir(".", cmd, args...)
}
func runPrintInDir(dir string, cmd string, args ...string) {
if debug {
t0 := time.Now()
log.Println("runPrint:", cmd, strings.Join(args, " "))
defer func() {
log.Println("... in", time.Since(t0))
}()
}
ecmd := exec.Command(cmd, args...)
ecmd.Stdout = os.Stdout
ecmd.Stderr = os.Stderr
ecmd.Dir = dir
err := ecmd.Run()
if err != nil {
log.Fatal(err)
}
}
func runPipe(file, cmd string, args ...string) {
if debug {
t0 := time.Now()
log.Println("runPipe:", cmd, strings.Join(args, " "))
defer func() {
log.Println("... in", time.Since(t0))
}()
}
fd, err := os.Create(file)
if err != nil {
log.Fatal(err)
}
ecmd := exec.Command(cmd, args...)
ecmd.Stdout = fd
ecmd.Stderr = os.Stderr
err = ecmd.Run()
if err != nil {
log.Fatal(err)
}
fd.Close()
}
func tarGz(out string, files []archiveFile) {
fd, err := os.Create(out)
if err != nil {
log.Fatal(err)
}
gw, err := gzip.NewWriterLevel(fd, gzip.BestCompression)
if err != nil {
log.Fatal(err)
}
tw := tar.NewWriter(gw)
for _, f := range files {
sf, err := os.Open(f.src)
if err != nil {
log.Fatal(err)
}
info, err := sf.Stat()
if err != nil {
log.Fatal(err)
}
h := &tar.Header{
Name: f.dst,
Size: info.Size(),
Mode: int64(info.Mode()),
ModTime: info.ModTime(),
}
err = tw.WriteHeader(h)
if err != nil {
log.Fatal(err)
}
_, err = io.Copy(tw, sf)
if err != nil {
log.Fatal(err)
}
sf.Close()
}
err = tw.Close()
if err != nil {
log.Fatal(err)
}
err = gw.Close()
if err != nil {
log.Fatal(err)
}
err = fd.Close()
if err != nil {
log.Fatal(err)
}
}
func zipFile(out string, files []archiveFile) {
fd, err := os.Create(out)
if err != nil {
log.Fatal(err)
}
zw := zip.NewWriter(fd)
var fw *flate.Writer
// Register the deflator.
zw.RegisterCompressor(zip.Deflate, func(out io.Writer) (io.WriteCloser, error) {
var err error
if fw == nil {
// Creating a flate compressor for every file is
// expensive, create one and reuse it.
fw, err = flate.NewWriter(out, flate.BestCompression)
} else {
fw.Reset(out)
}
return fw, err
})
for _, f := range files {
sf, err := os.Open(f.src)
if err != nil {
log.Fatal(err)
}
info, err := sf.Stat()
if err != nil {
log.Fatal(err)
}
fh, err := zip.FileInfoHeader(info)
if err != nil {
log.Fatal(err)
}
fh.Name = filepath.ToSlash(f.dst)
fh.Method = zip.Deflate
if strings.HasSuffix(f.dst, ".txt") {
// Text file. Read it and convert line endings.
bs, err := io.ReadAll(sf)
if err != nil {
log.Fatal(err)
}
bs = bytes.Replace(bs, []byte{'\n'}, []byte{'\r', '\n'}, -1)
fh.UncompressedSize = uint32(len(bs))
fh.UncompressedSize64 = uint64(len(bs))
of, err := zw.CreateHeader(fh)
if err != nil {
log.Fatal(err)
}
of.Write(bs)
} else {
// Binary file. Copy verbatim.
of, err := zw.CreateHeader(fh)
if err != nil {
log.Fatal(err)
}
_, err = io.Copy(of, sf)
if err != nil {
log.Fatal(err)
}
}
}
err = zw.Close()
if err != nil {
log.Fatal(err)
}
err = fd.Close()
if err != nil {
log.Fatal(err)
}
}
func codesign(target target) {
switch goos {
case "windows":
windowsCodesign(target.BinaryName())
case "darwin":
macosCodesign(target.BinaryName())
}
}
func macosCodesign(file string) {
if pass := os.Getenv("CODESIGN_KEYCHAIN_PASS"); pass != "" {
bs, err := runError("security", "unlock-keychain", "-p", pass)
if err != nil {
log.Println("Codesign: unlocking keychain failed:", string(bs))
return
}
}
if id := os.Getenv("CODESIGN_IDENTITY"); id != "" {
bs, err := runError("codesign", "--options=runtime", "-s", id, file)
if err != nil {
log.Println("Codesign: signing failed:", string(bs))
return
}
log.Println("Codesign: successfully signed", file)
}
}
func windowsCodesign(file string) {
st := "signtool.exe"
if path := os.Getenv("CODESIGN_SIGNTOOL"); path != "" {
st = path
}
for i, algo := range []string{"sha1", "sha256"} {
args := []string{"sign", "/fd", algo}
if f := os.Getenv("CODESIGN_CERTIFICATE_FILE"); f != "" {
args = append(args, "/f", f)
} else if b := os.Getenv("CODESIGN_CERTIFICATE_BASE64"); b != "" {
// Decode the PFX certificate from base64.
bs, err := base64.RawStdEncoding.DecodeString(b)
if err != nil {
log.Println("Codesign: signing failed: decoding base64:", err)
return
}
// Write it to a temporary file
f, err := os.CreateTemp("", "codesign-*.pfx")
if err != nil {
log.Println("Codesign: signing failed: creating temp file:", err)
return
}
_ = f.Chmod(0o600) // best effort remove other users' access
defer os.Remove(f.Name())
if _, err := f.Write(bs); err != nil {
log.Println("Codesign: signing failed: writing temp file:", err)
return
}
if err := f.Close(); err != nil {
log.Println("Codesign: signing failed: closing temp file:", err)
return
}
// Use that when signing
args = append(args, "/f", f.Name())
}
if p := os.Getenv("CODESIGN_CERTIFICATE_PASSWORD"); p != "" {
args = append(args, "/p", p)
}
if tr := os.Getenv("CODESIGN_TIMESTAMP_SERVER"); tr != "" {
switch algo {
case "sha256":
args = append(args, "/tr", tr, "/td", algo)
default:
args = append(args, "/t", tr)
}
}
if i > 0 {
args = append(args, "/as")
}
args = append(args, file)
bs, err := runError(st, args...)
if err != nil {
log.Printf("Codesign: signing failed: %v: %s", err, string(bs))
return
}
log.Println("Codesign: successfully signed", file, "using", algo)
}
}
func metalint() {
lazyRebuildAssets()
runPrint(goCmd, "test", "-run", "Metalint", "./meta")
}
func metalintShort() {
lazyRebuildAssets()
runPrint(goCmd, "test", "-short", "-run", "Metalint", "./meta")
}
func (t target) BinaryName() string {
if goos == "windows" {
return t.binaryName + ".exe"
}
return t.binaryName
}
func currentAndLatestVersions(n int) ([]string, error) {
bs, err := runError("git", "tag", "--sort", "taggerdate")
if err != nil {
return nil, err
}
lines := strings.Split(string(bs), "\n")
reverseStrings(lines)
// The one at the head is the latest version. We always keep that one.
// Then we filter out remaining ones with dashes (pre-releases etc).
latest := lines[:1]
nonPres := filterStrings(lines[1:], func(s string) bool { return !strings.Contains(s, "-") })
vers := append(latest, nonPres...)
return vers[:n], nil
}
func reverseStrings(ss []string) {
for i := 0; i < len(ss)/2; i++ {
ss[i], ss[len(ss)-1-i] = ss[len(ss)-1-i], ss[i]
}
}
func filterStrings(ss []string, op func(string) bool) []string {
n := ss[:0]
for _, s := range ss {
if op(s) {
n = append(n, s)
}
}
return n
}
func tagMessage(tag string) (string, error) {
hash, err := runError("git", "rev-parse", tag)
if err != nil {
return "", err
}
obj, err := runError("git", "cat-file", "-p", string(hash))
if err != nil {
return "", err
}
return trimTagMessage(string(obj), tag), nil
}
func trimTagMessage(msg, tag string) string {
firstBlank := strings.Index(msg, "\n\n")
if firstBlank > 0 {
msg = msg[firstBlank+2:]
}
msg = strings.TrimPrefix(msg, tag)
beginSig := strings.Index(msg, "-----BEGIN PGP")
if beginSig > 0 {
msg = msg[:beginSig]
}
return strings.TrimSpace(msg)
}
func nextPatchVersion(ver string) string {
parts := strings.SplitN(ver, "-", 2)
digits := strings.Split(parts[0], ".")
n, _ := strconv.Atoi(digits[len(digits)-1])
digits[len(digits)-1] = strconv.Itoa(n + 1)
return strings.Join(digits, ".")
}
func writeCompatJSON() {
bs, err := os.ReadFile("compat.yaml")
if err != nil {
log.Fatal("Reading compat.yaml:", err)
}
var entries []upgrade.ReleaseCompatibility
if err := yaml.Unmarshal(bs, &entries); err != nil {
log.Fatal("Parsing compat.yaml:", err)
}
rt := runtime.Version()
for _, e := range entries {
if !strings.HasPrefix(rt, e.Runtime) {
continue
}
bs, _ := json.MarshalIndent(e, "", " ")
if err := os.WriteFile("compat.json", bs, 0o644); err != nil {
log.Fatal("Writing compat.json:", err)
}
return
}
log.Fatalf("runtime %v not found in compat.yaml", rt)
}