add pack feature, not can pack project into compressed file

main.go

@@ -58,6 +58,7 @@ func (c *Command) Runnable() bool {
 var commands = []*Command{
 	cmdCreate,
 	cmdStart,
+	cmdPack,
 	//cmdReStart,
 }
 
@@ -82,8 +83,13 @@ func main() {
 			if cmd.CustomFlags {
 				args = args[1:]
 			} else {
-				cmd.Flag.Parse(args[1:])
-				args = cmd.Flag.Args()
+				if len(args) > 2 {
+					cmd.Flag.Parse(args[2:])
+					args = append([]string{args[1]}, cmd.Flag.Args()...)
+				} else {
+					cmd.Flag.Parse(args[1:])
+					args = cmd.Flag.Args()
+				}
 			}
 			cmd.Run(cmd, args)
 			os.Exit(2)
@@ -91,7 +97,7 @@ func main() {
 		}
 	}
 
-	fmt.Fprintf(os.Stderr, "go: unknown subcommand %q\nRun 'go help' for usage.\n", args[0])
+	fmt.Fprintf(os.Stderr, "bee: unknown subcommand %q\nRun 'bee help' for usage.\n", args[0])
 	os.Exit(2)
 }
 

pack.go

@@ -0,0 +1,456 @@
+package main
+
+import (
+	"archive/tar"
+	"archive/zip"
+	"compress/gzip"
+	"flag"
+	"fmt"
+	"io"
+	"os"
+	"os/exec"
+	path "path/filepath"
+	"runtime"
+	"sort"
+	"strconv"
+	"strings"
+	"syscall"
+	"time"
+)
+
+var cmdPack = &Command{
+	UsageLine: "pack [appPath]",
+	Short:     "pack an beego project into one execute file",
+	Long: `
+compress an project
+
+-b        build specify platform app. default true
+-o        compressed file output path. default use appname
+-f        format. [ tar.gz / zip ]. default tar.gz. note: zip doesn't support embed symlink, skip it
+-exp      path exclude prefix
+-exs      path exclude suffix. default: .go:.DS_Store:.tmp
+          all path use : as separator
+-fs       follow symlink. default false
+-ss       skip symlink. default false
+          default embed symlink into compressed file
+-v        verbose
+`,
+}
+
+var (
+	excludeP string
+	excludeS string
+	outputP  string
+	fsym     bool
+	ssym     bool
+	build    bool
+	verbose  bool
+	format   string
+)
+
+func init() {
+	fs := flag.NewFlagSet("pack", flag.ExitOnError)
+	fs.StringVar(&excludeP, "exp", "", "")
+	fs.StringVar(&excludeS, "exs", ".go:.DS_Store", "")
+	fs.StringVar(&outputP, "o", "", "")
+	fs.BoolVar(&build, "b", true, "")
+	fs.BoolVar(&fsym, "fs", false, "")
+	fs.BoolVar(&ssym, "ss", false, "")
+	fs.BoolVar(&verbose, "v", false, "")
+	fs.StringVar(&format, "f", "tar.gz", "")
+	cmdPack.Flag = *fs
+	cmdPack.Run = packApp
+}
+
+func exitPrint(con string) {
+	fmt.Fprintln(os.Stderr, con)
+	os.Exit(2)
+}
+
+type walker interface {
+	isExclude(string) bool
+	isEmpty(string) bool
+	relName(string) string
+	virPath(string) string
+	compress(string, string, os.FileInfo) (bool, error)
+	walkRoot(string) error
+}
+
+type byName []os.FileInfo
+
+func (f byName) Len() int           { return len(f) }
+func (f byName) Less(i, j int) bool { return f[i].Name() < f[j].Name() }
+func (f byName) Swap(i, j int)      { f[i], f[j] = f[j], f[i] }
+
+type walkFileTree struct {
+	wak           walker
+	prefix        string
+	excludePrefix []string
+	excludeSuffix []string
+}
+
+func (wft *walkFileTree) setPrefix(prefix string) {
+	wft.prefix = prefix
+}
+
+func (wft *walkFileTree) isExclude(name string) bool {
+	if name == "" {
+		return true
+	}
+	for _, prefix := range wft.excludePrefix {
+		if strings.HasPrefix(name, prefix) {
+			return true
+		}
+	}
+	for _, suffix := range wft.excludeSuffix {
+		if strings.HasSuffix(name, suffix) {
+			return true
+		}
+	}
+	return false
+}
+
+func (wft *walkFileTree) isEmpty(fpath string) bool {
+	fh, _ := os.Open(fpath)
+	defer fh.Close()
+	infos, _ := fh.Readdir(-1)
+	for _, fi := range infos {
+		fp := path.Join(fpath, fi.Name())
+		if wft.isExclude(wft.virPath(fp)) {
+			continue
+		}
+		if fi.Mode()&os.ModeSymlink > 0 {
+			continue
+		}
+		if fi.IsDir() && wft.isEmpty(fp) {
+			continue
+		}
+		return false
+	}
+	return true
+}
+
+func (wft *walkFileTree) relName(fpath string) string {
+	name, _ := path.Rel(wft.prefix, fpath)
+	return name
+}
+
+func (wft *walkFileTree) virPath(fpath string) string {
+	name := fpath[len(wft.prefix):]
+	if name == "" {
+		return ""
+	}
+	name = name[1:]
+	return name
+}
+
+func (wft *walkFileTree) readDir(dirname string) ([]os.FileInfo, error) {
+	f, err := os.Open(dirname)
+	if err != nil {
+		return nil, err
+	}
+	list, err := f.Readdir(-1)
+	f.Close()
+	if err != nil {
+		return nil, err
+	}
+	sort.Sort(byName(list))
+	return list, nil
+}
+
+func (wft *walkFileTree) walkLeaf(fpath string, fi os.FileInfo, err error) error {
+	if err != nil {
+		return err
+	}
+
+	if fi.IsDir() {
+		return nil
+	}
+
+	name := wft.virPath(fpath)
+	if wft.isExclude(name) {
+		return nil
+	}
+
+	if ssym && fi.Mode()&os.ModeSymlink > 0 {
+		return nil
+	}
+
+	if added, err := wft.wak.compress(name, fpath, fi); added {
+		if verbose {
+			fmt.Printf("Compressed: %s\n", name)
+		}
+		return err
+	} else {
+		return err
+	}
+}
+
+func (wft *walkFileTree) iterDirectory(fpath string, fi os.FileInfo) error {
+	doFSym := fsym && fi.Mode()&os.ModeSymlink > 0
+	if doFSym {
+		nfi, err := os.Stat(fpath)
+		if os.IsNotExist(err) {
+			return nil
+		}
+		fi = nfi
+	}
+
+	err := wft.walkLeaf(fpath, fi, nil)
+	if err != nil {
+		if fi.IsDir() && err == path.SkipDir {
+			return nil
+		}
+		return err
+	}
+
+	if !fi.IsDir() {
+		return nil
+	}
+
+	list, err := wft.readDir(fpath)
+	if err != nil {
+		return wft.walkLeaf(fpath, fi, err)
+	}
+
+	for _, fileInfo := range list {
+		err = wft.iterDirectory(path.Join(fpath, fileInfo.Name()), fileInfo)
+		if err != nil {
+			if !fileInfo.IsDir() || err != path.SkipDir {
+				return err
+			}
+		}
+	}
+	return nil
+}
+
+func (wft *walkFileTree) walkRoot(root string) error {
+	wft.prefix = root
+	fi, err := os.Stat(root)
+	if err != nil {
+		return err
+	}
+	return wft.iterDirectory(root, fi)
+}
+
+type tarWalk struct {
+	walkFileTree
+	tw *tar.Writer
+}
+
+func (wft *tarWalk) compress(name, fpath string, fi os.FileInfo) (bool, error) {
+	isSym := fi.Mode()&os.ModeSymlink > 0
+	link := ""
+	if isSym {
+		link, _ = os.Readlink(fpath)
+	}
+
+	hdr, err := tar.FileInfoHeader(fi, link)
+	if err != nil {
+		return false, err
+	}
+	hdr.Name = name
+
+	tw := wft.tw
+	err = tw.WriteHeader(hdr)
+	if err != nil {
+		return false, err
+	}
+
+	if isSym == false {
+		fr, err := os.Open(fpath)
+		if err != nil {
+			return false, err
+		}
+		defer fr.Close()
+		_, err = io.Copy(tw, fr)
+		if err != nil {
+			return false, err
+		}
+		tw.Flush()
+	}
+
+	return true, nil
+}
+
+type zipWalk struct {
+	walkFileTree
+	zw *zip.Writer
+}
+
+func (wft *zipWalk) compress(name, fpath string, fi os.FileInfo) (bool, error) {
+	isSym := fi.Mode()&os.ModeSymlink > 0
+	if isSym {
+		// golang1.1 doesn't support embed symlink
+		// what i miss something?
+		return false, nil
+	}
+
+	hdr, err := zip.FileInfoHeader(fi)
+	if err != nil {
+		return false, err
+	}
+	hdr.Name = name
+
+	zw := wft.zw
+	w, err := zw.CreateHeader(hdr)
+	if err != nil {
+		return false, err
+	}
+
+	if isSym == false {
+		fr, err := os.Open(fpath)
+		if err != nil {
+			return false, err
+		}
+		defer fr.Close()
+		_, err = io.Copy(w, fr)
+		if err != nil {
+			return false, err
+		}
+	}
+
+	return true, nil
+}
+
+func packDirectory(excludePrefix []string, excludeSuffix []string, includePath ...string) (err error) {
+	fmt.Printf("exclude prefix: %s\n", strings.Join(excludePrefix, ":"))
+	fmt.Printf("exclude suffix: %s\n", strings.Join(excludeSuffix, ":"))
+
+	w, err := os.OpenFile(outputP, os.O_CREATE|os.O_WRONLY|os.O_TRUNC, 0644)
+	if err != nil {
+		return err
+	}
+
+	var wft walker
+
+	if format == "zip" {
+		walk := new(zipWalk)
+		zw := zip.NewWriter(w)
+		defer func() {
+			zw.Close()
+		}()
+		walk.zw = zw
+		walk.wak = walk
+		walk.excludePrefix = excludePrefix
+		walk.excludeSuffix = excludeSuffix
+		wft = walk
+	} else {
+		walk := new(tarWalk)
+		cw := gzip.NewWriter(w)
+		tw := tar.NewWriter(cw)
+
+		defer func() {
+			tw.Flush()
+			cw.Flush()
+			tw.Close()
+			cw.Close()
+		}()
+		walk.tw = tw
+		walk.wak = walk
+		walk.excludePrefix = excludePrefix
+		walk.excludeSuffix = excludeSuffix
+		wft = walk
+	}
+
+	for _, p := range includePath {
+		err = wft.walkRoot(p)
+		if err != nil {
+			return
+		}
+	}
+
+	return
+}
+
+func packApp(cmd *Command, args []string) {
+	if len(args) == 0 {
+		fmt.Fprintln(os.Stderr, "need appPath")
+		cmdPack.Usage()
+	}
+
+	curPath, _ := os.Getwd()
+	thePath := ""
+	appPath := args[0]
+
+	if path.IsAbs(appPath) == false {
+		thePath = path.Join(curPath, appPath)
+	}
+	thePath, err := path.Abs(thePath)
+	if err != nil {
+		exitPrint(fmt.Sprintf("wrong app path: %s", thePath))
+	}
+	if stat, err := os.Stat(thePath); os.IsNotExist(err) || stat.IsDir() == false {
+		exitPrint(fmt.Sprintf("not exist app path: %s", thePath))
+	}
+
+	appName := path.Base(thePath)
+
+	goos := runtime.GOOS
+	if v, found := syscall.Getenv("GOOS"); found {
+		goos = v
+	}
+	goarch := runtime.GOARCH
+	if v, found := syscall.Getenv("GOARCH"); found {
+		goarch = v
+	}
+
+	str := strconv.FormatInt(time.Now().UnixNano(), 10)[9:]
+
+	gobin := path.Join(runtime.GOROOT(), "bin", "go")
+	tmpdir := path.Join(os.TempDir(), "beePack-"+str)
+
+	os.Mkdir(tmpdir, 0700)
+
+	if build {
+		fmt.Println("GOOS", goos, "GOARCH", goarch)
+		fmt.Println("build", appName)
+
+		os.Setenv("GOOS", goos)
+		os.Setenv("GOARCH", goarch)
+
+		binPath := path.Join(tmpdir, appName)
+		execmd := exec.Command(gobin, "build", "-o", binPath)
+		execmd.Stdout = os.Stdout
+		execmd.Stderr = os.Stderr
+		err = execmd.Run()
+		if err != nil {
+			exitPrint(err.Error())
+		}
+
+		fmt.Println("build success")
+	}
+
+	switch format {
+	case "zip":
+	default:
+		format = "tar.gz"
+	}
+
+	if outputP == "" {
+		outputP = path.Join(curPath, appName+"."+format)
+	}
+
+	if stat, err := os.Stat(outputP); err == nil && stat.IsDir() {
+		outputP = path.Join(outputP, appName+"."+format)
+	}
+
+	var exp, exs []string
+	for _, p := range strings.Split(excludeP, ":") {
+		if len(p) > 0 {
+			exp = append(exp, p)
+		}
+	}
+	for _, p := range strings.Split(excludeS, ":") {
+		if len(p) > 0 {
+			exs = append(exs, p)
+		}
+	}
+
+	err = packDirectory(exp, exs, thePath, tmpdir)
+	if err != nil {
+		exitPrint(err.Error())
+	}
+
+	fmt.Printf("file write to `%s`\n", outputP)
+}