build: add -dlgo flag in ci.go (#21824)

This new flag downloads a known version of Go and builds with it. This
is meant for environments where we can't easily upgrade the installed Go
version.

* .travis.yml: remove install step for PR test builders

We added this step originally to avoid re-building everything
for every test. go test has become much smarter in recent go
releases, so we no longer need to install anything here.
pull/21828/head
Felix Lange 4 years ago committed by GitHub
parent 70868b1e4a
commit 27d93c1848
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
  1. 20
      .travis.yml
  2. 2
      appveyor.yml
  3. 9
      build/checksums.txt
  4. 195
      build/ci.go
  5. 94
      internal/build/archive.go
  6. 27
      internal/build/util.go

@ -31,7 +31,6 @@ jobs:
env: env:
- GO111MODULE=on - GO111MODULE=on
script: script:
- go run build/ci.go install
- go run build/ci.go test -coverage $TEST_PACKAGES - go run build/ci.go test -coverage $TEST_PACKAGES
# These are the latest Go versions. # These are the latest Go versions.
@ -43,7 +42,6 @@ jobs:
env: env:
- GO111MODULE=on - GO111MODULE=on
script: script:
- go run build/ci.go install
- go run build/ci.go test -coverage $TEST_PACKAGES - go run build/ci.go test -coverage $TEST_PACKAGES
- stage: build - stage: build
@ -55,7 +53,6 @@ jobs:
env: env:
- GO111MODULE=on - GO111MODULE=on
script: script:
- go run build/ci.go install
- go run build/ci.go test -coverage $TEST_PACKAGES - go run build/ci.go test -coverage $TEST_PACKAGES
- stage: build - stage: build
@ -74,7 +71,6 @@ jobs:
- ulimit -S -n $NOFILE - ulimit -S -n $NOFILE
- ulimit -n - ulimit -n
- unset -f cd # workaround for https://github.com/travis-ci/travis-ci/issues/8703 - unset -f cd # workaround for https://github.com/travis-ci/travis-ci/issues/8703
- go run build/ci.go install
- go run build/ci.go test -coverage $TEST_PACKAGES - go run build/ci.go test -coverage $TEST_PACKAGES
# This builder does the Ubuntu PPA upload # This builder does the Ubuntu PPA upload
@ -99,7 +95,7 @@ jobs:
- python-paramiko - python-paramiko
script: script:
- echo '|1|7SiYPr9xl3uctzovOTj4gMwAC1M=|t6ReES75Bo/PxlOPJ6/GsGbTrM0= ssh-rsa AAAAB3NzaC1yc2EAAAABIwAAAQEA0aKz5UTUndYgIGG7dQBV+HaeuEZJ2xPHo2DS2iSKvUL4xNMSAY4UguNW+pX56nAQmZKIZZ8MaEvSj6zMEDiq6HFfn5JcTlM80UwlnyKe8B8p7Nk06PPQLrnmQt5fh0HmEcZx+JU9TZsfCHPnX7MNz4ELfZE6cFsclClrKim3BHUIGq//t93DllB+h4O9LHjEUsQ1Sr63irDLSutkLJD6RXchjROXkNirlcNVHH/jwLWR5RcYilNX7S5bIkK8NlWPjsn/8Ua5O7I9/YoE97PpO6i73DTGLh5H9JN/SITwCKBkgSDWUt61uPK3Y11Gty7o2lWsBjhBUm2Y38CBsoGmBw==' >> ~/.ssh/known_hosts - echo '|1|7SiYPr9xl3uctzovOTj4gMwAC1M=|t6ReES75Bo/PxlOPJ6/GsGbTrM0= ssh-rsa AAAAB3NzaC1yc2EAAAABIwAAAQEA0aKz5UTUndYgIGG7dQBV+HaeuEZJ2xPHo2DS2iSKvUL4xNMSAY4UguNW+pX56nAQmZKIZZ8MaEvSj6zMEDiq6HFfn5JcTlM80UwlnyKe8B8p7Nk06PPQLrnmQt5fh0HmEcZx+JU9TZsfCHPnX7MNz4ELfZE6cFsclClrKim3BHUIGq//t93DllB+h4O9LHjEUsQ1Sr63irDLSutkLJD6RXchjROXkNirlcNVHH/jwLWR5RcYilNX7S5bIkK8NlWPjsn/8Ua5O7I9/YoE97PpO6i73DTGLh5H9JN/SITwCKBkgSDWUt61uPK3Y11Gty7o2lWsBjhBUm2Y38CBsoGmBw==' >> ~/.ssh/known_hosts
- go run build/ci.go debsrc -goversion 1.15 -upload ethereum/ethereum -sftp-user geth-ci -signer "Go Ethereum Linux Builder <geth-ci@ethereum.org>" - go run build/ci.go debsrc -upload ethereum/ethereum -sftp-user geth-ci -signer "Go Ethereum Linux Builder <geth-ci@ethereum.org>"
# This builder does the Linux Azure uploads # This builder does the Linux Azure uploads
- stage: build - stage: build
@ -119,22 +115,22 @@ jobs:
- gcc-multilib - gcc-multilib
script: script:
# Build for the primary platforms that Trusty can manage # Build for the primary platforms that Trusty can manage
- go run build/ci.go install - go run build/ci.go install -dlgo
- go run build/ci.go archive -type tar -signer LINUX_SIGNING_KEY -upload gethstore/builds - go run build/ci.go archive -type tar -signer LINUX_SIGNING_KEY -upload gethstore/builds
- go run build/ci.go install -arch 386 - go run build/ci.go install -dlgo -arch 386
- go run build/ci.go archive -arch 386 -type tar -signer LINUX_SIGNING_KEY -upload gethstore/builds - go run build/ci.go archive -arch 386 -type tar -signer LINUX_SIGNING_KEY -upload gethstore/builds
# Switch over GCC to cross compilation (breaks 386, hence why do it here only) # Switch over GCC to cross compilation (breaks 386, hence why do it here only)
- sudo -E apt-get -yq --no-install-suggests --no-install-recommends --force-yes install gcc-arm-linux-gnueabi libc6-dev-armel-cross gcc-arm-linux-gnueabihf libc6-dev-armhf-cross gcc-aarch64-linux-gnu libc6-dev-arm64-cross - sudo -E apt-get -yq --no-install-suggests --no-install-recommends --force-yes install gcc-arm-linux-gnueabi libc6-dev-armel-cross gcc-arm-linux-gnueabihf libc6-dev-armhf-cross gcc-aarch64-linux-gnu libc6-dev-arm64-cross
- sudo ln -s /usr/include/asm-generic /usr/include/asm - sudo ln -s /usr/include/asm-generic /usr/include/asm
- GOARM=5 go run build/ci.go install -arch arm -cc arm-linux-gnueabi-gcc - GOARM=5 go run build/ci.go install -dlgo -arch arm -cc arm-linux-gnueabi-gcc
- GOARM=5 go run build/ci.go archive -arch arm -type tar -signer LINUX_SIGNING_KEY -upload gethstore/builds - GOARM=5 go run build/ci.go archive -arch arm -type tar -signer LINUX_SIGNING_KEY -upload gethstore/builds
- GOARM=6 go run build/ci.go install -arch arm -cc arm-linux-gnueabi-gcc - GOARM=6 go run build/ci.go install -dlgo -arch arm -cc arm-linux-gnueabi-gcc
- GOARM=6 go run build/ci.go archive -arch arm -type tar -signer LINUX_SIGNING_KEY -upload gethstore/builds - GOARM=6 go run build/ci.go archive -arch arm -type tar -signer LINUX_SIGNING_KEY -upload gethstore/builds
- GOARM=7 go run build/ci.go install -arch arm -cc arm-linux-gnueabihf-gcc - GOARM=7 go run build/ci.go install -dlgo -arch arm -cc arm-linux-gnueabihf-gcc
- GOARM=7 go run build/ci.go archive -arch arm -type tar -signer LINUX_SIGNING_KEY -upload gethstore/builds - GOARM=7 go run build/ci.go archive -arch arm -type tar -signer LINUX_SIGNING_KEY -upload gethstore/builds
- go run build/ci.go install -arch arm64 -cc aarch64-linux-gnu-gcc - go run build/ci.go install -dlgo -arch arm64 -cc aarch64-linux-gnu-gcc
- go run build/ci.go archive -arch arm64 -type tar -signer LINUX_SIGNING_KEY -upload gethstore/builds - go run build/ci.go archive -arch arm64 -type tar -signer LINUX_SIGNING_KEY -upload gethstore/builds
# This builder does the Linux Azure MIPS xgo uploads # This builder does the Linux Azure MIPS xgo uploads
@ -219,7 +215,7 @@ jobs:
git: git:
submodules: false # avoid cloning ethereum/tests submodules: false # avoid cloning ethereum/tests
script: script:
- go run build/ci.go install - go run build/ci.go install -dlgo
- go run build/ci.go archive -type tar -signer OSX_SIGNING_KEY -upload gethstore/builds - go run build/ci.go archive -type tar -signer OSX_SIGNING_KEY -upload gethstore/builds
# Build the iOS framework and upload it to CocoaPods and Azure # Build the iOS framework and upload it to CocoaPods and Azure

@ -30,7 +30,7 @@ install:
- gcc --version - gcc --version
build_script: build_script:
- go run build\ci.go install - go run build\ci.go install -dlgo
after_build: after_build:
- go run build\ci.go archive -type zip -signer WINDOWS_SIGNING_KEY -upload gethstore/builds - go run build\ci.go archive -type zip -signer WINDOWS_SIGNING_KEY -upload gethstore/builds

@ -1,6 +1,13 @@
# This file contains sha256 checksums of optional build dependencies. # This file contains sha256 checksums of optional build dependencies.
69438f7ed4f532154ffaf878f3dfd83747e7a00b70b3556eddabf7aaee28ac3a go1.15.src.tar.gz 063da6a9a4186b8118a0e584532c8c94e65582e2cd951ed078bfd595d27d2367 go1.15.4.src.tar.gz
aaf8c5323e0557211680960a8f51bedf98ab9a368775a687d6cf1f0079232b1d go1.15.4.darwin-amd64.tar.gz
6b2f6d8afddfb198bf0e36044084dc4db4cb0be1107375240b34d215aa5ff6ad go1.15.4.linux-386.tar.gz
eb61005f0b932c93b424a3a4eaa67d72196c79129d9a3ea8578047683e2c80d5 go1.15.4.linux-amd64.tar.gz
6f083b453484fc5f95afb345547a58ccc957cde91348b7a7c68f5b060e488c85 go1.15.4.linux-arm64.tar.gz
fe449ad3e121472e5db2f70becc0fef9d1a7188616c0605ada63f1e3bbad280e go1.15.4.linux-armv6l.tar.gz
3be3cfc08ccc7e7056fdee17b6f5d18e9d7f3d1351dcfec8de34b1c95cb05b50 go1.15.4.windows-386.zip
3593204e3851be577e4209900ece031b36f1e9ce1671f3f3221c9af7a090a941 go1.15.4.windows-amd64.zip
d998a84eea42f2271aca792a7b027ca5c1edfcba229e8e5a844c9ac3f336df35 golangci-lint-1.27.0-linux-armv7.tar.gz d998a84eea42f2271aca792a7b027ca5c1edfcba229e8e5a844c9ac3f336df35 golangci-lint-1.27.0-linux-armv7.tar.gz
bf781f05b0d393b4bf0a327d9e62926949a4f14d7774d950c4e009fc766ed1d4 golangci-lint.exe-1.27.0-windows-amd64.zip bf781f05b0d393b4bf0a327d9e62926949a4f14d7774d950c4e009fc766ed1d4 golangci-lint.exe-1.27.0-windows-amd64.zip

@ -46,12 +46,11 @@ import (
"encoding/base64" "encoding/base64"
"flag" "flag"
"fmt" "fmt"
"go/parser"
"go/token"
"io/ioutil" "io/ioutil"
"log" "log"
"os" "os"
"os/exec" "os/exec"
"path"
"path/filepath" "path/filepath"
"regexp" "regexp"
"runtime" "runtime"
@ -148,6 +147,11 @@ var (
"golang-1.11": "/usr/lib/go-1.11", "golang-1.11": "/usr/lib/go-1.11",
"golang-go": "/usr/lib/go", "golang-go": "/usr/lib/go",
} }
// This is the version of go that will be downloaded by
//
// go run ci.go install -dlgo
dlgoVersion = "1.15.4"
) )
var GOBIN, _ = filepath.Abs(filepath.Join("build", "bin")) var GOBIN, _ = filepath.Abs(filepath.Join("build", "bin"))
@ -198,19 +202,19 @@ func main() {
func doInstall(cmdline []string) { func doInstall(cmdline []string) {
var ( var (
dlgo = flag.Bool("dlgo", false, "Download Go and build with it")
arch = flag.String("arch", "", "Architecture to cross build for") arch = flag.String("arch", "", "Architecture to cross build for")
cc = flag.String("cc", "", "C compiler to cross build with") cc = flag.String("cc", "", "C compiler to cross build with")
) )
flag.CommandLine.Parse(cmdline) flag.CommandLine.Parse(cmdline)
env := build.Env() env := build.Env()
// Check Go version. People regularly open issues about compilation // Check local Go version. People regularly open issues about compilation
// failure with outdated Go. This should save them the trouble. // failure with outdated Go. This should save them the trouble.
if !strings.Contains(runtime.Version(), "devel") { if !strings.Contains(runtime.Version(), "devel") {
// Figure out the minor version number since we can't textually compare (1.10 < 1.9) // Figure out the minor version number since we can't textually compare (1.10 < 1.9)
var minor int var minor int
fmt.Sscanf(strings.TrimPrefix(runtime.Version(), "go1."), "%d", &minor) fmt.Sscanf(strings.TrimPrefix(runtime.Version(), "go1."), "%d", &minor)
if minor < 13 { if minor < 13 {
log.Println("You have Go version", runtime.Version()) log.Println("You have Go version", runtime.Version())
log.Println("go-ethereum requires at least Go version 1.13 and cannot") log.Println("go-ethereum requires at least Go version 1.13 and cannot")
@ -218,90 +222,108 @@ func doInstall(cmdline []string) {
os.Exit(1) os.Exit(1)
} }
} }
// Compile packages given as arguments, or everything if there are no arguments.
packages := []string{"./..."} // Choose which go command we're going to use.
if flag.NArg() > 0 { var gobuild *exec.Cmd
packages = flag.Args() if !*dlgo {
// Default behavior: use the go version which runs ci.go right now.
gobuild = goTool("build")
} else {
// Download of Go requested. This is for build environments where the
// installed version is too old and cannot be upgraded easily.
cachedir := filepath.Join("build", "cache")
goroot := downloadGo(runtime.GOARCH, runtime.GOOS, cachedir)
gobuild = localGoTool(goroot, "build")
} }
if *arch == "" || *arch == runtime.GOARCH { // Configure environment for cross build.
goinstall := goTool("install", buildFlags(env)...) if *arch != "" || *arch != runtime.GOARCH {
if runtime.GOARCH == "arm64" { gobuild.Env = append(gobuild.Env, "CGO_ENABLED=1")
goinstall.Args = append(goinstall.Args, "-p", "1") gobuild.Env = append(gobuild.Env, "GOARCH="+*arch)
}
goinstall.Args = append(goinstall.Args, "-trimpath")
goinstall.Args = append(goinstall.Args, "-v")
goinstall.Args = append(goinstall.Args, packages...)
build.MustRun(goinstall)
return
} }
// Seems we are cross compiling, work around forbidden GOBIN // Configure C compiler.
goinstall := goToolArch(*arch, *cc, "install", buildFlags(env)...) if *cc == "" {
goinstall.Args = append(goinstall.Args, "-trimpath") gobuild.Env = append(gobuild.Env, "CC="+*cc)
goinstall.Args = append(goinstall.Args, "-v") } else if os.Getenv("CC") != "" {
goinstall.Args = append(goinstall.Args, []string{"-buildmode", "archive"}...) gobuild.Env = append(gobuild.Env, "CC="+os.Getenv("CC"))
goinstall.Args = append(goinstall.Args, packages...) }
build.MustRun(goinstall)
if cmds, err := ioutil.ReadDir("cmd"); err == nil { // arm64 CI builders are memory-constrained and can't handle concurrent builds,
for _, cmd := range cmds { // better disable it. This check isn't the best, it should probably
pkgs, err := parser.ParseDir(token.NewFileSet(), filepath.Join(".", "cmd", cmd.Name()), nil, parser.PackageClauseOnly) // check for something in env instead.
if err != nil { if runtime.GOARCH == "arm64" {
log.Fatal(err) gobuild.Args = append(gobuild.Args, "-p", "1")
} }
for name := range pkgs {
if name == "main" { // Put the default settings in.
gobuild := goToolArch(*arch, *cc, "build", buildFlags(env)...) gobuild.Args = append(gobuild.Args, buildFlags(env)...)
gobuild.Args = append(gobuild.Args, "-v")
gobuild.Args = append(gobuild.Args, []string{"-o", executablePath(cmd.Name())}...) // Show packages during build.
gobuild.Args = append(gobuild.Args, "."+string(filepath.Separator)+filepath.Join("cmd", cmd.Name())) gobuild.Args = append(gobuild.Args, "-v")
build.MustRun(gobuild)
break // Now we choose what we're even building.
} // Default: collect all 'main' packages in cmd/ and build those.
} packages := flag.Args()
} if len(packages) == 0 {
packages = build.FindMainPackages("./cmd")
}
// Do the build!
for _, pkg := range packages {
args := make([]string, len(gobuild.Args))
copy(args, gobuild.Args)
args = append(args, "-o", executablePath(path.Base(pkg)))
args = append(args, pkg)
build.MustRun(&exec.Cmd{Path: gobuild.Path, Args: args, Env: gobuild.Env})
} }
} }
// buildFlags returns the go tool flags for building.
func buildFlags(env build.Environment) (flags []string) { func buildFlags(env build.Environment) (flags []string) {
var ld []string var ld []string
if env.Commit != "" { if env.Commit != "" {
ld = append(ld, "-X", "main.gitCommit="+env.Commit) ld = append(ld, "-X", "main.gitCommit="+env.Commit)
ld = append(ld, "-X", "main.gitDate="+env.Date) ld = append(ld, "-X", "main.gitDate="+env.Date)
} }
// Strip DWARF on darwin. This used to be required for certain things,
// and there is no downside to this, so we just keep doing it.
if runtime.GOOS == "darwin" { if runtime.GOOS == "darwin" {
ld = append(ld, "-s") ld = append(ld, "-s")
} }
if len(ld) > 0 { if len(ld) > 0 {
flags = append(flags, "-ldflags", strings.Join(ld, " ")) flags = append(flags, "-ldflags", strings.Join(ld, " "))
} }
// We use -trimpath to avoid leaking local paths into the built executables.
flags = append(flags, "-trimpath")
return flags return flags
} }
// goTool returns the go tool. This uses the Go version which runs ci.go.
func goTool(subcmd string, args ...string) *exec.Cmd { func goTool(subcmd string, args ...string) *exec.Cmd {
return goToolArch(runtime.GOARCH, os.Getenv("CC"), subcmd, args...) cmd := build.GoTool(subcmd, args...)
goToolSetEnv(cmd)
return cmd
} }
func goToolArch(arch string, cc string, subcmd string, args ...string) *exec.Cmd { // localGoTool returns the go tool from the given GOROOT.
cmd := build.GoTool(subcmd, args...) func localGoTool(goroot string, subcmd string, args ...string) *exec.Cmd {
if arch == "" || arch == runtime.GOARCH { gotool := filepath.Join(goroot, "bin", "go")
cmd.Env = append(cmd.Env, "GOBIN="+GOBIN) cmd := exec.Command(gotool, subcmd)
} else { goToolSetEnv(cmd)
cmd.Env = append(cmd.Env, "CGO_ENABLED=1") cmd.Env = append(cmd.Env, "GOROOT="+goroot)
cmd.Env = append(cmd.Env, "GOARCH="+arch) cmd.Args = append(cmd.Args, args...)
} return cmd
if cc != "" { }
cmd.Env = append(cmd.Env, "CC="+cc)
} // goToolSetEnv forwards the build environment to the go tool.
func goToolSetEnv(cmd *exec.Cmd) {
for _, e := range os.Environ() { for _, e := range os.Environ() {
if strings.HasPrefix(e, "GOBIN=") { if strings.HasPrefix(e, "GOBIN=") || strings.HasPrefix(e, "CC=") {
continue continue
} }
cmd.Env = append(cmd.Env, e) cmd.Env = append(cmd.Env, e)
} }
return cmd
} }
// Running The Tests // Running The Tests
@ -363,7 +385,7 @@ func downloadLinter(cachedir string) string {
if err := csdb.DownloadFile(url, archivePath); err != nil { if err := csdb.DownloadFile(url, archivePath); err != nil {
log.Fatal(err) log.Fatal(err)
} }
if err := build.ExtractTarballArchive(archivePath, cachedir); err != nil { if err := build.ExtractArchive(archivePath, cachedir); err != nil {
log.Fatal(err) log.Fatal(err)
} }
return filepath.Join(cachedir, base, "golangci-lint") return filepath.Join(cachedir, base, "golangci-lint")
@ -469,13 +491,12 @@ func maybeSkipArchive(env build.Environment) {
// Debian Packaging // Debian Packaging
func doDebianSource(cmdline []string) { func doDebianSource(cmdline []string) {
var ( var (
goversion = flag.String("goversion", "", `Go version to build with (will be included in the source package)`) cachedir = flag.String("cachedir", "./build/cache", `Filesystem path to cache the downloaded Go bundles at`)
cachedir = flag.String("cachedir", "./build/cache", `Filesystem path to cache the downloaded Go bundles at`) signer = flag.String("signer", "", `Signing key name, also used as package author`)
signer = flag.String("signer", "", `Signing key name, also used as package author`) upload = flag.String("upload", "", `Where to upload the source package (usually "ethereum/ethereum")`)
upload = flag.String("upload", "", `Where to upload the source package (usually "ethereum/ethereum")`) sshUser = flag.String("sftp-user", "", `Username for SFTP upload (usually "geth-ci")`)
sshUser = flag.String("sftp-user", "", `Username for SFTP upload (usually "geth-ci")`) workdir = flag.String("workdir", "", `Output directory for packages (uses temp dir if unset)`)
workdir = flag.String("workdir", "", `Output directory for packages (uses temp dir if unset)`) now = time.Now()
now = time.Now()
) )
flag.CommandLine.Parse(cmdline) flag.CommandLine.Parse(cmdline)
*workdir = makeWorkdir(*workdir) *workdir = makeWorkdir(*workdir)
@ -490,7 +511,7 @@ func doDebianSource(cmdline []string) {
} }
// Download and verify the Go source package. // Download and verify the Go source package.
gobundle := downloadGoSources(*goversion, *cachedir) gobundle := downloadGoSources(*cachedir)
// Download all the dependencies needed to build the sources and run the ci script // Download all the dependencies needed to build the sources and run the ci script
srcdepfetch := goTool("install", "-n", "./...") srcdepfetch := goTool("install", "-n", "./...")
@ -509,7 +530,7 @@ func doDebianSource(cmdline []string) {
pkgdir := stageDebianSource(*workdir, meta) pkgdir := stageDebianSource(*workdir, meta)
// Add Go source code // Add Go source code
if err := build.ExtractTarballArchive(gobundle, pkgdir); err != nil { if err := build.ExtractArchive(gobundle, pkgdir); err != nil {
log.Fatalf("Failed to extract Go sources: %v", err) log.Fatalf("Failed to extract Go sources: %v", err)
} }
if err := os.Rename(filepath.Join(pkgdir, "go"), filepath.Join(pkgdir, ".go")); err != nil { if err := os.Rename(filepath.Join(pkgdir, "go"), filepath.Join(pkgdir, ".go")); err != nil {
@ -541,9 +562,10 @@ func doDebianSource(cmdline []string) {
} }
} }
func downloadGoSources(version string, cachedir string) string { // downloadGoSources downloads the Go source tarball.
func downloadGoSources(cachedir string) string {
csdb := build.MustLoadChecksums("build/checksums.txt") csdb := build.MustLoadChecksums("build/checksums.txt")
file := fmt.Sprintf("go%s.src.tar.gz", version) file := fmt.Sprintf("go%s.src.tar.gz", dlgoVersion)
url := "https://dl.google.com/go/" + file url := "https://dl.google.com/go/" + file
dst := filepath.Join(cachedir, file) dst := filepath.Join(cachedir, file)
if err := csdb.DownloadFile(url, dst); err != nil { if err := csdb.DownloadFile(url, dst); err != nil {
@ -552,6 +574,41 @@ func downloadGoSources(version string, cachedir string) string {
return dst return dst
} }
// downloadGo downloads the Go binary distribution and unpacks it into a temporary
// directory. It returns the GOROOT of the unpacked toolchain.
func downloadGo(goarch, goos, cachedir string) string {
if goarch == "arm" {
goarch = "armv6l"
}
csdb := build.MustLoadChecksums("build/checksums.txt")
file := fmt.Sprintf("go%s.%s-%s", dlgoVersion, goos, goarch)
if goos == "windows" {
file += ".zip"
} else {
file += ".tar.gz"
}
url := "https://golang.org/dl/" + file
dst := filepath.Join(cachedir, file)
if err := csdb.DownloadFile(url, dst); err != nil {
log.Fatal(err)
}
ucache, err := os.UserCacheDir()
if err != nil {
log.Fatal(err)
}
godir := filepath.Join(ucache, fmt.Sprintf("geth-go-%s-%s-%s", dlgoVersion, goos, goarch))
if err := build.ExtractArchive(dst, godir); err != nil {
log.Fatal(err)
}
goroot, err := filepath.Abs(filepath.Join(godir, "go"))
if err != nil {
log.Fatal(err)
}
return goroot
}
func ppaUpload(workdir, ppa, sshUser string, files []string) { func ppaUpload(workdir, ppa, sshUser string, files []string) {
p := strings.Split(ppa, "/") p := strings.Split(ppa, "/")
if len(p) != 2 { if len(p) != 2 {

@ -184,24 +184,35 @@ func (a *TarballArchive) Close() error {
return a.file.Close() return a.file.Close()
} }
func ExtractTarballArchive(archive string, dest string) error { // ExtractArchive unpacks a .zip or .tar.gz archive to the destination directory.
// We're only interested in gzipped archives, wrap the reader now func ExtractArchive(archive string, dest string) error {
ar, err := os.Open(archive) ar, err := os.Open(archive)
if err != nil { if err != nil {
return err return err
} }
defer ar.Close() defer ar.Close()
switch {
case strings.HasSuffix(archive, ".tar.gz"):
return extractTarball(ar, dest)
case strings.HasSuffix(archive, ".zip"):
return extractZip(ar, dest)
default:
return fmt.Errorf("unhandled archive type %s", archive)
}
}
// extractTarball unpacks a .tar.gz file.
func extractTarball(ar io.Reader, dest string) error {
gzr, err := gzip.NewReader(ar) gzr, err := gzip.NewReader(ar)
if err != nil { if err != nil {
return err return err
} }
defer gzr.Close() defer gzr.Close()
// Iterate over all the files in the tarball
tr := tar.NewReader(gzr) tr := tar.NewReader(gzr)
for { for {
// Fetch the next tarball header and abort if needed // Move to the next file header.
header, err := tr.Next() header, err := tr.Next()
if err != nil { if err != nil {
if err == io.EOF { if err == io.EOF {
@ -209,22 +220,69 @@ func ExtractTarballArchive(archive string, dest string) error {
} }
return err return err
} }
// Figure out the target and create it // We only care about regular files, directory modes
target := filepath.Join(dest, header.Name) // and special file types are not supported.
if header.Typeflag == tar.TypeReg {
switch header.Typeflag { armode := header.FileInfo().Mode()
case tar.TypeReg: err := extractFile(header.Name, armode, tr, dest)
if err := os.MkdirAll(filepath.Dir(target), 0755); err != nil {
return err
}
file, err := os.OpenFile(target, os.O_CREATE|os.O_RDWR, os.FileMode(header.Mode))
if err != nil { if err != nil {
return err return fmt.Errorf("extract %s: %v", header.Name, err)
}
if _, err := io.Copy(file, tr); err != nil {
return err
} }
file.Close()
} }
} }
} }
// extractZip unpacks the given .zip file.
func extractZip(ar *os.File, dest string) error {
info, err := ar.Stat()
if err != nil {
return err
}
zr, err := zip.NewReader(ar, info.Size())
if err != nil {
return err
}
for _, zf := range zr.File {
if !zf.Mode().IsRegular() {
continue
}
data, err := zf.Open()
if err != nil {
return err
}
err = extractFile(zf.Name, zf.Mode(), data, dest)
data.Close()
if err != nil {
return fmt.Errorf("extract %s: %v", zf.Name, err)
}
}
return nil
}
// extractFile extracts a single file from an archive.
func extractFile(arpath string, armode os.FileMode, data io.Reader, dest string) error {
// Check that path is inside destination directory.
target := filepath.Join(dest, filepath.FromSlash(arpath))
if !strings.HasPrefix(target, filepath.Clean(dest)+string(os.PathSeparator)) {
return fmt.Errorf("path %q escapes archive destination", target)
}
// Ensure the destination directory exists.
if err := os.MkdirAll(filepath.Dir(target), 0755); err != nil {
return err
}
// Copy file data.
file, err := os.OpenFile(target, os.O_CREATE|os.O_WRONLY|os.O_TRUNC, armode)
if err != nil {
return err
}
if _, err := io.Copy(file, data); err != nil {
file.Close()
os.Remove(target)
return err
}
return file.Close()
}

@ -20,6 +20,8 @@ import (
"bytes" "bytes"
"flag" "flag"
"fmt" "fmt"
"go/parser"
"go/token"
"io" "io"
"io/ioutil" "io/ioutil"
"log" "log"
@ -152,3 +154,28 @@ func UploadSFTP(identityFile, host, dir string, files []string) error {
stdin.Close() stdin.Close()
return sftp.Wait() return sftp.Wait()
} }
// FindMainPackages finds all 'main' packages in the given directory and returns their
// package paths.
func FindMainPackages(dir string) []string {
var commands []string
cmds, err := ioutil.ReadDir(dir)
if err != nil {
log.Fatal(err)
}
for _, cmd := range cmds {
pkgdir := filepath.Join(dir, cmd.Name())
pkgs, err := parser.ParseDir(token.NewFileSet(), pkgdir, nil, parser.PackageClauseOnly)
if err != nil {
log.Fatal(err)
}
for name := range pkgs {
if name == "main" {
path := "./" + filepath.ToSlash(pkgdir)
commands = append(commands, path)
break
}
}
}
return commands
}

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