blob: 2496a865a40f51ddc6d356ee6cfb2689e54ba87d [file] [log] [blame]
// Copyright 2012 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// This is a tool for packaging binary releases.
// It supports FreeBSD, Linux, NetBSD, OpenBSD, OS X, and Windows.
package main
import (
"archive/tar"
"archive/zip"
"bufio"
"bytes"
"compress/gzip"
"crypto/sha1"
"encoding/json"
"flag"
"fmt"
"io"
"io/ioutil"
"log"
"net/http"
"net/url"
"os"
"os/exec"
"path"
"path/filepath"
"regexp"
"runtime"
"strings"
"code.google.com/p/goauth2/oauth"
"code.google.com/p/google-api-go-client/storage/v1beta2"
)
var (
tag = flag.String("tag", "release", "mercurial tag to check out")
toolTag = flag.String("tool", defaultToolTag, "go.tools tag to check out")
tourTag = flag.String("tour", defaultTourTag, "go-tour tag to check out")
repo = flag.String("repo", "https://code.google.com/p/go", "repo URL")
verbose = flag.Bool("v", false, "verbose output")
upload = flag.Bool("upload", false, "upload resulting files to Google Code")
addLabel = flag.String("label", "", "additional label to apply to file when uploading")
includeRace = flag.Bool("race", true, "build race detector packages")
versionOverride = flag.String("version", "", "override version name")
staticToolchain = flag.Bool("static", true, "try to build statically linked toolchain (only supported on ELF targets)")
tokenCache = flag.String("token", defaultCacheFile, "Authentication token cache file")
storageBucket = flag.String("bucket", "golang", "Cloud Storage Bucket")
uploadURL = flag.String("upload_url", defaultUploadURL, "Upload URL")
defaultCacheFile = filepath.Join(os.Getenv("HOME"), ".makerelease-request-token")
defaultUploadURL = "http://golang.org/dl/upload"
)
const (
blogPath = "code.google.com/p/go.blog"
toolPath = "code.google.com/p/go.tools"
tourPath = "code.google.com/p/go-tour"
defaultToolTag = "release-branch.go1.2"
defaultTourTag = "release-branch.go1.2"
)
// Import paths for tool commands.
// These must be the command that cmd/go knows to install to $GOROOT/bin
// or $GOROOT/pkg/tool.
var toolPaths = []string{
"code.google.com/p/go.tools/cmd/cover",
"code.google.com/p/go.tools/cmd/godoc",
"code.google.com/p/go.tools/cmd/vet",
}
var preBuildCleanFiles = []string{
"lib/codereview",
"misc/dashboard/godashboard",
"src/cmd/cov",
"src/cmd/prof",
"src/pkg/exp",
"src/pkg/old",
}
var cleanFiles = []string{
".hg",
".hgtags",
".hgignore",
"VERSION.cache",
}
var sourceCleanFiles = []string{
"bin",
"pkg",
}
var tourPackages = []string{
"pic",
"tree",
"wc",
}
var tourContent = []string{
"content",
"solutions",
"static",
"template",
}
var blogContent = []string{
"content",
"template",
}
// The os-arches that support the race toolchain.
var raceAvailable = []string{
"darwin-amd64",
"linux-amd64",
"windows-amd64",
}
// The OSes that support building statically linked toolchain
// Only ELF platforms are supported.
var staticLinkAvailable = []string{
"linux",
"freebsd",
"openbsd",
"netbsd",
}
var fileRe = regexp.MustCompile(`^(go[a-z0-9-.]+)\.(src|([a-z0-9]+)-([a-z0-9]+)(?:-([a-z0-9.]+))?)\.(tar\.gz|zip|pkg|msi)$`)
// OAuth2-authenticated HTTP client used to make calls to Cloud Storage.
var oauthClient *http.Client
// Builder key as specified in ~/.gobuildkey
var builderKey string
func main() {
flag.Usage = func() {
fmt.Fprintf(os.Stderr, "usage: %s [flags] targets...\n", os.Args[0])
flag.PrintDefaults()
os.Exit(2)
}
flag.Parse()
if flag.NArg() == 0 {
flag.Usage()
}
if runtime.GOOS == "windows" {
checkWindowsDeps()
}
if *upload {
if err := readCredentials(); err != nil {
log.Fatalln("readCredentials:", err)
}
if err := setupOAuthClient(); err != nil {
log.Fatalln("setupOAuthClient:", err)
}
}
for _, targ := range flag.Args() {
var b Build
if m := fileRe.FindStringSubmatch(targ); m != nil {
// targ is a file name; upload it to googlecode.
version := m[1]
if m[2] == "src" {
b.Source = true
} else {
b.OS = m[3]
b.Arch = m[4]
b.Label = m[5]
}
if !*upload {
log.Printf("%s: -upload=false, skipping", targ)
continue
}
if err := b.Upload(version, targ); err != nil {
log.Printf("uploading %s: %v", targ, err)
}
continue
}
if targ == "source" {
b.Source = true
} else {
p := strings.SplitN(targ, "-", 3)
if len(p) < 2 {
log.Println("Ignoring unrecognized target:", targ)
continue
}
b.OS = p[0]
b.Arch = p[1]
if len(p) >= 3 {
b.Label = p[2]
}
if *includeRace {
for _, t := range raceAvailable {
if t == targ || strings.HasPrefix(targ, t+"-") {
b.Race = true
}
}
}
if *staticToolchain {
for _, os := range staticLinkAvailable {
if b.OS == os {
b.static = true
}
}
}
}
if err := b.Do(); err != nil {
log.Printf("%s: %v", targ, err)
}
}
}
type Build struct {
Source bool // if true, OS and Arch must be empty
Race bool // build race toolchain
OS string
Arch string
Label string
root string
gopath string
static bool // if true, build statically linked toolchain
}
func (b *Build) Do() error {
work, err := ioutil.TempDir("", "makerelease")
if err != nil {
return err
}
defer os.RemoveAll(work)
b.root = filepath.Join(work, "go")
b.gopath = work
// Clone Go distribution and update to tag.
_, err = b.hgCmd(work, "clone", *repo, b.root)
if err != nil {
return err
}
_, err = b.hgCmd(b.root, "update", *tag)
if err != nil {
return err
}
// Remove exp and old packages.
if err := b.clean(preBuildCleanFiles); err != nil {
return err
}
src := filepath.Join(b.root, "src")
if b.Source {
if runtime.GOOS == "windows" {
log.Print("Warning: running make.bash on Windows; source builds are intended to be run on a Unix machine")
}
// Build dist tool only.
_, err = b.run(src, "bash", "make.bash", "--dist-tool")
} else {
// Build.
if b.OS == "windows" {
_, err = b.run(src, "cmd", "/C", "make.bat")
} else {
_, err = b.run(src, "bash", "make.bash")
}
if b.Race {
if err != nil {
return err
}
goCmd := filepath.Join(b.root, "bin", "go")
if b.OS == "windows" {
goCmd += ".exe"
}
_, err = b.run(src, goCmd, "install", "-race", "std")
if err != nil {
return err
}
// Re-install std without -race, so that we're not left
// with a slower, race-enabled cmd/go, etc.
_, err = b.run(src, goCmd, "install", "-a", "std")
// Re-building go command leaves old versions of go.exe as go.exe~ on windows.
// See (*builder).copyFile in $GOROOT/src/cmd/go/build.go for details.
// Remove it manually.
if b.OS == "windows" {
os.Remove(goCmd + "~")
}
}
if err != nil {
return err
}
err = b.extras()
}
if err != nil {
return err
}
// Get version strings.
var (
version string // "weekly.2012-03-04"
fullVersion []byte // "weekly.2012-03-04 9353aa1efdf3"
)
pat := filepath.Join(b.root, "pkg/tool/*/dist*") // trailing * for .exe
m, err := filepath.Glob(pat)
if err != nil {
return err
}
if len(m) == 0 {
return fmt.Errorf("couldn't find dist in %q", pat)
}
fullVersion, err = b.run("", m[0], "version")
if err != nil {
return err
}
fullVersion = bytes.TrimSpace(fullVersion)
v := bytes.SplitN(fullVersion, []byte(" "), 2)
version = string(v[0])
if *versionOverride != "" {
version = *versionOverride
}
// Write VERSION file.
err = ioutil.WriteFile(filepath.Join(b.root, "VERSION"), fullVersion, 0644)
if err != nil {
return err
}
// Clean goroot.
if err := b.clean(cleanFiles); err != nil {
return err
}
if b.Source {
if err := b.clean(sourceCleanFiles); err != nil {
return err
}
}
// Create packages.
base := fmt.Sprintf("%s.%s-%s", version, b.OS, b.Arch)
if b.Label != "" {
base += "-" + b.Label
}
if !strings.HasPrefix(base, "go") {
base = "go." + base
}
var targs []string
switch b.OS {
case "linux", "freebsd", "netbsd", "":
// build tarball
targ := base
if b.Source {
targ = fmt.Sprintf("%s.src", version)
if !strings.HasPrefix(targ, "go") {
targ = "go." + targ
}
}
targ += ".tar.gz"
err = makeTar(targ, work)
targs = append(targs, targ)
case "darwin":
// build tarball
targ := base + ".tar.gz"
err = makeTar(targ, work)
targs = append(targs, targ)
makerelease := filepath.Join(runtime.GOROOT(), "misc/makerelease")
// build pkg
// arrange work so it's laid out as the dest filesystem
etc := filepath.Join(makerelease, "darwin/etc")
_, err = b.run(work, "cp", "-r", etc, ".")
if err != nil {
return err
}
localDir := filepath.Join(work, "usr/local")
err = os.MkdirAll(localDir, 0755)
if err != nil {
return err
}
_, err = b.run(work, "mv", "go", localDir)
if err != nil {
return err
}
// build package
pkgdest, err := ioutil.TempDir("", "pkgdest")
if err != nil {
return err
}
defer os.RemoveAll(pkgdest)
_, err = b.run("", "pkgbuild",
"--identifier", "com.googlecode.go",
"--version", version,
"--scripts", filepath.Join(makerelease, "darwin/scripts"),
"--root", work,
filepath.Join(pkgdest, "com.googlecode.go.pkg"))
if err != nil {
return err
}
targ = base + ".pkg"
_, err = b.run("", "productbuild",
"--distribution", filepath.Join(makerelease, "darwin/Distribution"),
"--resources", filepath.Join(makerelease, "darwin/Resources"),
"--package-path", pkgdest,
targ)
if err != nil {
return err
}
targs = append(targs, targ)
case "windows":
// Create ZIP file.
zip := filepath.Join(work, base+".zip")
err = makeZip(zip, work)
// Copy zip to target file.
targ := base + ".zip"
err = cp(targ, zip)
if err != nil {
return err
}
targs = append(targs, targ)
// Create MSI installer.
win := filepath.Join(runtime.GOROOT(), "misc/makerelease/windows")
installer := filepath.Join(win, "installer.wxs")
appfiles := filepath.Join(work, "AppFiles.wxs")
msi := filepath.Join(work, "installer.msi")
// Gather files.
_, err = b.run(work, "heat", "dir", "go",
"-nologo",
"-gg", "-g1", "-srd", "-sfrag",
"-cg", "AppFiles",
"-template", "fragment",
"-dr", "INSTALLDIR",
"-var", "var.SourceDir",
"-out", appfiles)
if err != nil {
return err
}
// Build package.
_, err = b.run(work, "candle",
"-nologo",
"-dVersion="+version,
"-dArch="+b.Arch,
"-dSourceDir=go",
installer, appfiles)
if err != nil {
return err
}
appfiles = filepath.Join(work, "AppFiles.wixobj")
installer = filepath.Join(work, "installer.wixobj")
_, err = b.run(win, "light",
"-nologo",
"-ext", "WixUIExtension",
"-ext", "WixUtilExtension",
installer, appfiles,
"-o", msi)
if err != nil {
return err
}
// Copy installer to target file.
targ = base + ".msi"
err = cp(targ, msi)
targs = append(targs, targ)
}
if err == nil && *upload {
for _, targ := range targs {
err = b.Upload(version, targ)
if err != nil {
return fmt.Errorf("uploading %s: %v", targ, err)
}
}
}
return err
}
// extras fetches the go.tools, go.blog, and go-tour repositories,
// builds them and copies the resulting binaries and static assets
// to the new GOROOT.
func (b *Build) extras() error {
defer b.cleanGopath()
if err := b.tools(); err != nil {
return err
}
if err := b.blog(); err != nil {
return err
}
return b.tour()
}
func (b *Build) get(repoPath, revision string) error {
// Fetch the packages (without building/installing).
_, err := b.run(b.gopath, filepath.Join(b.root, "bin", "go"),
"get", "-d", repoPath+"/...")
if err != nil {
return err
}
// Update the repo to the specified revision.
p := filepath.Join(b.gopath, "src", filepath.FromSlash(repoPath))
_, err = b.run(p, "hg", "update", revision)
return err
}
func (b *Build) tools() error {
// Fetch the go.tools repository.
if err := b.get(toolPath, *toolTag); err != nil {
return err
}
// Install tools.
args := append([]string{"install"}, toolPaths...)
_, err := b.run(b.gopath, filepath.Join(b.root, "bin", "go"), args...)
if err != nil {
return err
}
// Copy doc.go from go.tools/cmd/$CMD to $GOROOT/src/cmd/$CMD
// while rewriting "package main" to "package documentation".
for _, p := range toolPaths {
d, err := ioutil.ReadFile(filepath.Join(b.gopath, "src",
filepath.FromSlash(p), "doc.go"))
if err != nil {
return err
}
d = bytes.Replace(d, []byte("\npackage main\n"),
[]byte("\npackage documentation\n"), 1)
cmdDir := filepath.Join(b.root, "src", "cmd", path.Base(p))
if err := os.MkdirAll(cmdDir, 0755); err != nil {
return err
}
docGo := filepath.Join(cmdDir, "doc.go")
if err := ioutil.WriteFile(docGo, d, 0644); err != nil {
return err
}
}
return nil
}
func (b *Build) blog() error {
// Fetch the blog repository.
_, err := b.run(b.gopath, filepath.Join(b.root, "bin", "go"), "get", "-d", blogPath+"/blog")
if err != nil {
return err
}
// Copy blog content to $GOROOT/blog.
blogSrc := filepath.Join(b.gopath, "src", filepath.FromSlash(blogPath))
contentDir := filepath.Join(b.root, "blog")
return cpAllDir(contentDir, blogSrc, blogContent...)
}
func (b *Build) tour() error {
// Fetch the go-tour repository.
if err := b.get(tourPath, *tourTag); err != nil {
return err
}
// Build tour binary.
_, err := b.run(b.gopath, filepath.Join(b.root, "bin", "go"),
"install", tourPath+"/gotour")
if err != nil {
return err
}
// Copy all the tour content to $GOROOT/misc/tour.
importPath := filepath.FromSlash(tourPath)
tourSrc := filepath.Join(b.gopath, "src", importPath)
contentDir := filepath.Join(b.root, "misc", "tour")
if err = cpAllDir(contentDir, tourSrc, tourContent...); err != nil {
return err
}
// Copy the tour source code so it's accessible with $GOPATH pointing to $GOROOT/misc/tour.
if err = cpAllDir(filepath.Join(contentDir, "src", importPath), tourSrc, tourPackages...); err != nil {
return err
}
// Copy gotour binary to tool directory as "tour"; invoked as "go tool tour".
return cp(
filepath.Join(b.root, "pkg", "tool", b.OS+"_"+b.Arch, "tour"+ext()),
filepath.Join(b.gopath, "bin", "gotour"+ext()),
)
}
func (b *Build) cleanGopath() {
for _, d := range []string{"bin", "pkg", "src"} {
os.RemoveAll(filepath.Join(b.gopath, d))
}
}
func ext() string {
if runtime.GOOS == "windows" {
return ".exe"
}
return ""
}
func (b *Build) hgCmd(dir string, args ...string) ([]byte, error) {
return b.run(dir, "hg", append([]string{"--config", "extensions.codereview=!"}, args...)...)
}
func (b *Build) run(dir, name string, args ...string) ([]byte, error) {
buf := new(bytes.Buffer)
absName, err := lookPath(name)
if err != nil {
return nil, err
}
cmd := exec.Command(absName, args...)
var output io.Writer = buf
if *verbose {
log.Printf("Running %q %q", absName, args)
output = io.MultiWriter(buf, os.Stdout)
}
cmd.Stdout = output
cmd.Stderr = output
cmd.Dir = dir
cmd.Env = b.env()
if err := cmd.Run(); err != nil {
fmt.Fprintf(os.Stderr, "%s", buf.Bytes())
return nil, fmt.Errorf("%s %s: %v", name, strings.Join(args, " "), err)
}
return buf.Bytes(), nil
}
var cleanEnv = []string{
"GOARCH",
"GOBIN",
"GOHOSTARCH",
"GOHOSTOS",
"GOOS",
"GOROOT",
"GOROOT_FINAL",
"GOPATH",
}
func (b *Build) env() []string {
env := os.Environ()
for i := 0; i < len(env); i++ {
for _, c := range cleanEnv {
if strings.HasPrefix(env[i], c+"=") {
env = append(env[:i], env[i+1:]...)
}
}
}
final := "/usr/local/go"
if b.OS == "windows" {
final = `c:\go`
}
env = append(env,
"GOARCH="+b.Arch,
"GOHOSTARCH="+b.Arch,
"GOHOSTOS="+b.OS,
"GOOS="+b.OS,
"GOROOT="+b.root,
"GOROOT_FINAL="+final,
"GOPATH="+b.gopath,
)
if b.static {
env = append(env, "GO_DISTFLAGS=-s")
}
return env
}
func (b *Build) Upload(version string, filename string) error {
file, err := ioutil.ReadFile(filename)
if err != nil {
return err
}
svc, err := storage.New(oauthClient)
if err != nil {
return err
}
obj := &storage.Object{
Acl: []*storage.ObjectAccessControl{{Entity: "allUsers", Role: "READER"}},
Name: filename,
}
_, err = svc.Objects.Insert(*storageBucket, obj).Media(bytes.NewReader(file)).Do()
if err != nil {
return err
}
sum := fmt.Sprintf("%x", sha1.Sum(file))
kind := "unknown"
switch {
case b.Source:
kind = "source"
case strings.HasSuffix(filename, ".tar.gz"), strings.HasSuffix(filename, ".zip"):
kind = "archive"
case strings.HasSuffix(filename, ".msi"), strings.HasSuffix(filename, ".pkg"):
kind = "installer"
}
req, err := json.Marshal(File{
Filename: filename,
Version: version,
OS: b.OS,
Arch: b.Arch,
Checksum: sum,
Kind: kind,
})
if err != nil {
return err
}
u := fmt.Sprintf("%s?%s", *uploadURL, url.Values{"key": []string{builderKey}}.Encode())
resp, err := http.Post(u, "application/json", bytes.NewReader(req))
if err != nil {
return err
}
defer resp.Body.Close()
if resp.StatusCode != http.StatusOK {
return fmt.Errorf("upload status: %v", resp.Status)
}
return nil
}
type File struct {
Filename string
OS string
Arch string
Version string
Checksum string `datastore:",noindex"`
Kind string // "archive", "installer", "source"
}
func setupOAuthClient() error {
config := &oauth.Config{
ClientId: "999119582588-h7kpj5pcm6d9solh5lgrbusmvvk4m9dn.apps.googleusercontent.com",
ClientSecret: "8YLFgOhXIELWbO",
Scope: storage.DevstorageRead_writeScope,
AuthURL: "https://accounts.google.com/o/oauth2/auth",
TokenURL: "https://accounts.google.com/o/oauth2/token",
TokenCache: oauth.CacheFile(*tokenCache),
RedirectURL: "oob",
}
transport := &oauth.Transport{Config: config}
if token, err := config.TokenCache.Token(); err != nil {
url := transport.Config.AuthCodeURL("")
fmt.Println("Visit the following URL, obtain an authentication" +
"code, and enter it below.")
fmt.Println(url)
fmt.Print("Enter authentication code: ")
code := ""
if _, err := fmt.Scan(&code); err != nil {
return err
}
if _, err := transport.Exchange(code); err != nil {
return err
}
} else {
transport.Token = token
}
oauthClient = transport.Client()
return nil
}
func (b *Build) clean(files []string) error {
for _, name := range files {
err := os.RemoveAll(filepath.Join(b.root, name))
if err != nil {
return err
}
}
return nil
}
func exists(path string) bool {
_, err := os.Stat(path)
return err == nil
}
func readCredentials() error {
name := os.Getenv("HOME")
if runtime.GOOS == "windows" {
name = os.Getenv("HOMEDRIVE") + os.Getenv("HOMEPATH")
}
name = filepath.Join(name, ".gobuildkey")
f, err := os.Open(name)
if err != nil {
return err
}
defer f.Close()
s := bufio.NewScanner(f)
if s.Scan() {
builderKey = s.Text()
}
return s.Err()
}
func cp(dst, src string) error {
sf, err := os.Open(src)
if err != nil {
return err
}
defer sf.Close()
fi, err := sf.Stat()
if err != nil {
return err
}
df, err := os.Create(dst)
if err != nil {
return err
}
defer df.Close()
// Windows doesn't currently implement Fchmod
if runtime.GOOS != "windows" {
if err := df.Chmod(fi.Mode()); err != nil {
return err
}
}
_, err = io.Copy(df, sf)
return err
}
func cpDir(dst, src string) error {
walk := func(srcPath string, info os.FileInfo, err error) error {
if err != nil {
return err
}
dstPath := filepath.Join(dst, srcPath[len(src):])
if info.IsDir() {
return os.MkdirAll(dstPath, 0755)
}
return cp(dstPath, srcPath)
}
return filepath.Walk(src, walk)
}
func cpAllDir(dst, basePath string, dirs ...string) error {
for _, dir := range dirs {
if err := cpDir(filepath.Join(dst, dir), filepath.Join(basePath, dir)); err != nil {
return err
}
}
return nil
}
func makeTar(targ, workdir string) error {
f, err := os.Create(targ)
if err != nil {
return err
}
zout := gzip.NewWriter(f)
tw := tar.NewWriter(zout)
err = filepath.Walk(workdir, func(path string, fi os.FileInfo, err error) error {
if !strings.HasPrefix(path, workdir) {
log.Panicf("walked filename %q doesn't begin with workdir %q", path, workdir)
}
name := path[len(workdir):]
// Chop of any leading / from filename, leftover from removing workdir.
if strings.HasPrefix(name, "/") {
name = name[1:]
}
// Don't include things outside of the go subdirectory (for instance,
// the zip file that we're currently writing here.)
if !strings.HasPrefix(name, "go/") {
return nil
}
if *verbose {
log.Printf("adding to tar: %s", name)
}
target, _ := os.Readlink(path)
hdr, err := tar.FileInfoHeader(fi, target)
if err != nil {
return err
}
hdr.Name = name
hdr.Uname = "root"
hdr.Gname = "root"
hdr.Uid = 0
hdr.Gid = 0
// Force permissions to 0755 for executables, 0644 for everything else.
if fi.Mode().Perm()&0111 != 0 {
hdr.Mode = hdr.Mode&^0777 | 0755
} else {
hdr.Mode = hdr.Mode&^0777 | 0644
}
err = tw.WriteHeader(hdr)
if err != nil {
return fmt.Errorf("Error writing file %q: %v", name, err)
}
if fi.IsDir() {
return nil
}
r, err := os.Open(path)
if err != nil {
return err
}
defer r.Close()
_, err = io.Copy(tw, r)
return err
})
if err != nil {
return err
}
if err := tw.Close(); err != nil {
return err
}
if err := zout.Close(); err != nil {
return err
}
return f.Close()
}
func makeZip(targ, workdir string) error {
f, err := os.Create(targ)
if err != nil {
return err
}
zw := zip.NewWriter(f)
err = filepath.Walk(workdir, func(path string, fi os.FileInfo, err error) error {
if !strings.HasPrefix(path, workdir) {
log.Panicf("walked filename %q doesn't begin with workdir %q", path, workdir)
}
name := path[len(workdir):]
// Convert to Unix-style named paths, as that's the
// type of zip file that archive/zip creates.
name = strings.Replace(name, "\\", "/", -1)
// Chop of any leading / from filename, leftover from removing workdir.
if strings.HasPrefix(name, "/") {
name = name[1:]
}
// Don't include things outside of the go subdirectory (for instance,
// the zip file that we're currently writing here.)
if !strings.HasPrefix(name, "go/") {
return nil
}
if *verbose {
log.Printf("adding to zip: %s", name)
}
fh, err := zip.FileInfoHeader(fi)
if err != nil {
return err
}
fh.Name = name
fh.Method = zip.Deflate
if fi.IsDir() {
fh.Name += "/" // append trailing slash
fh.Method = zip.Store // no need to deflate 0 byte files
}
w, err := zw.CreateHeader(fh)
if err != nil {
return err
}
if fi.IsDir() {
return nil
}
r, err := os.Open(path)
if err != nil {
return err
}
defer r.Close()
_, err = io.Copy(w, r)
return err
})
if err != nil {
return err
}
if err := zw.Close(); err != nil {
return err
}
return f.Close()
}
type tool struct {
name string
commonDirs []string
}
var wixTool = tool{
"http://wix.sourceforge.net/, version 3.5",
[]string{`C:\Program Files\Windows Installer XML v3.5\bin`,
`C:\Program Files (x86)\Windows Installer XML v3.5\bin`},
}
var hgTool = tool{
"http://mercurial.selenic.com/wiki/WindowsInstall",
[]string{`C:\Program Files\Mercurial`,
`C:\Program Files (x86)\Mercurial`,
},
}
var gccTool = tool{
"Mingw gcc; http://sourceforge.net/projects/mingw/files/Installer/mingw-get-inst/",
[]string{`C:\Mingw\bin`},
}
var windowsDeps = map[string]tool{
"gcc": gccTool,
"heat": wixTool,
"candle": wixTool,
"light": wixTool,
"cmd": {"Windows cmd.exe", nil},
"hg": hgTool,
}
func checkWindowsDeps() {
for prog, help := range windowsDeps {
absPath, err := lookPath(prog)
if err != nil {
log.Fatalf("Failed to find necessary binary %q in path or common locations; %s", prog, help)
}
if *verbose {
log.Printf("found windows dep %s at %s", prog, absPath)
}
}
}
func lookPath(prog string) (absPath string, err error) {
absPath, err = exec.LookPath(prog)
if err == nil {
return
}
t, ok := windowsDeps[prog]
if !ok {
return
}
for _, dir := range t.commonDirs {
for _, ext := range []string{"exe", "bat"} {
absPath = filepath.Join(dir, prog+"."+ext)
if _, err1 := os.Stat(absPath); err1 == nil {
err = nil
os.Setenv("PATH", os.Getenv("PATH")+";"+dir)
return
}
}
}
return
}