mirror of
https://github.com/beego/bee.git
synced 2025-07-08 03:00:19 +00:00
578 lines
12 KiB
Go
578 lines
12 KiB
Go
package pack
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import (
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"archive/tar"
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"archive/zip"
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"compress/gzip"
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"flag"
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"fmt"
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"io"
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"os"
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"os/exec"
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path "path/filepath"
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"regexp"
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"runtime"
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"sort"
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"strconv"
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"strings"
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"syscall"
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"time"
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"github.com/beego/bee/cmd/commands"
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"github.com/beego/bee/cmd/commands/version"
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beeLogger "github.com/beego/bee/logger"
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"github.com/beego/bee/utils"
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)
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var CmdPack = &commands.Command{
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CustomFlags: true,
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UsageLine: "pack",
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Short: "Compresses a Beego application into a single file",
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Long: `Pack is used to compress Beego applications into a tarball/zip file.
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This eases the deployment by directly extracting the file to a server.
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{{"Example:"|bold}}
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$ bee pack -v -ba="-ldflags '-s -w'"
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`,
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PreRun: func(cmd *commands.Command, args []string) { version.ShowShortVersionBanner() },
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Run: packApp,
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}
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var (
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appPath string
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excludeP string
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excludeS string
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outputP string
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excludeR utils.ListOpts
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fsym bool
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ssym bool
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build bool
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buildArgs string
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buildEnvs utils.ListOpts
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verbose bool
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format string
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)
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func init() {
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fs := flag.NewFlagSet("pack", flag.ContinueOnError)
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fs.StringVar(&appPath, "p", "", "Set the application path. Defaults to the current path.")
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fs.BoolVar(&build, "b", true, "Tell the command to do a build for the current platform. Defaults to true.")
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fs.StringVar(&buildArgs, "ba", "", "Specify additional args for Go build.")
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fs.Var(&buildEnvs, "be", "Specify additional env variables for Go build. e.g. GOARCH=arm.")
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fs.StringVar(&outputP, "o", "", "Set the compressed file output path. Defaults to the current path.")
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fs.StringVar(&format, "f", "tar.gz", "Set file format. Either tar.gz or zip. Defaults to tar.gz.")
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fs.StringVar(&excludeP, "exp", ".", "Set prefixes of paths to be excluded. Uses a column (:) as separator.")
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fs.StringVar(&excludeS, "exs", ".go:.DS_Store:.tmp", "Set suffixes of paths to be excluded. Uses a column (:) as separator.")
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fs.Var(&excludeR, "exr", "Set a regular expression of files to be excluded.")
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fs.BoolVar(&fsym, "fs", false, "Tell the command to follow symlinks. Defaults to false.")
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fs.BoolVar(&ssym, "ss", false, "Tell the command to skip symlinks. Defaults to false.")
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fs.BoolVar(&verbose, "v", false, "Be more verbose during the operation. Defaults to false.")
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CmdPack.Flag = *fs
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commands.AvailableCommands = append(commands.AvailableCommands, CmdPack)
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}
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type walker interface {
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isExclude(string) bool
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isEmpty(string) bool
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relName(string) string
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virPath(string) string
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compress(string, string, os.FileInfo) (bool, error)
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walkRoot(string) error
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}
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type byName []os.FileInfo
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func (f byName) Len() int { return len(f) }
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func (f byName) Less(i, j int) bool { return f[i].Name() < f[j].Name() }
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func (f byName) Swap(i, j int) { f[i], f[j] = f[j], f[i] }
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type walkFileTree struct {
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wak walker
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prefix string
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excludePrefix []string
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excludeRegexp []*regexp.Regexp
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excludeSuffix []string
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allfiles map[string]bool
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output *io.Writer
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}
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func (wft *walkFileTree) isExclude(fPath string) bool {
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if fPath == "" {
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return true
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}
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for _, prefix := range wft.excludePrefix {
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if strings.HasPrefix(fPath, prefix) {
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return true
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}
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}
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for _, suffix := range wft.excludeSuffix {
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if strings.HasSuffix(fPath, suffix) {
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return true
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}
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}
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return false
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}
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func (wft *walkFileTree) isExcludeName(name string) bool {
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for _, r := range wft.excludeRegexp {
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if r.MatchString(name) {
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return true
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}
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}
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return false
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}
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func (wft *walkFileTree) isEmpty(fpath string) bool {
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fh, _ := os.Open(fpath)
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defer fh.Close()
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infos, _ := fh.Readdir(-1)
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for _, fi := range infos {
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fn := fi.Name()
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fp := path.Join(fpath, fn)
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if wft.isExclude(wft.virPath(fp)) {
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continue
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}
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if wft.isExcludeName(fn) {
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continue
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}
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if fi.Mode()&os.ModeSymlink > 0 {
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continue
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}
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if fi.IsDir() && wft.isEmpty(fp) {
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continue
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}
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return false
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}
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return true
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}
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func (wft *walkFileTree) relName(fpath string) string {
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name, _ := path.Rel(wft.prefix, fpath)
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return name
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}
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func (wft *walkFileTree) virPath(fpath string) string {
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name := fpath[len(wft.prefix):]
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if name == "" {
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return ""
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}
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name = name[1:]
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name = path.ToSlash(name)
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return name
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}
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func (wft *walkFileTree) readDir(dirname string) ([]os.FileInfo, error) {
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f, err := os.Open(dirname)
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if err != nil {
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return nil, err
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}
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list, err := f.Readdir(-1)
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f.Close()
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if err != nil {
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return nil, err
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}
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sort.Sort(byName(list))
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return list, nil
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}
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func (wft *walkFileTree) walkLeaf(fpath string, fi os.FileInfo, err error) error {
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if err != nil {
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return err
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}
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if fpath == outputP {
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return nil
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}
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if fi.IsDir() {
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return nil
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}
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if ssym && fi.Mode()&os.ModeSymlink > 0 {
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return nil
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}
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name := wft.virPath(fpath)
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if wft.allfiles[name] {
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return nil
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}
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if added, err := wft.wak.compress(name, fpath, fi); added {
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if verbose {
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fmt.Fprintf(*wft.output, "\t%s%scompressed%s\t %s%s\n", "\x1b[32m", "\x1b[1m", "\x1b[21m", name, "\x1b[0m")
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}
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wft.allfiles[name] = true
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return err
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}
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return err
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}
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func (wft *walkFileTree) iterDirectory(fpath string, fi os.FileInfo) error {
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doFSym := fsym && fi.Mode()&os.ModeSymlink > 0
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if doFSym {
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nfi, err := os.Stat(fpath)
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if os.IsNotExist(err) {
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return nil
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}
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fi = nfi
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}
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relPath := wft.virPath(fpath)
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if len(relPath) > 0 {
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if wft.isExcludeName(fi.Name()) {
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return nil
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}
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if wft.isExclude(relPath) {
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return nil
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}
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}
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err := wft.walkLeaf(fpath, fi, nil)
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if err != nil {
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if fi.IsDir() && err == path.SkipDir {
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return nil
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}
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return err
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}
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if !fi.IsDir() {
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return nil
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}
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list, err := wft.readDir(fpath)
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if err != nil {
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return wft.walkLeaf(fpath, fi, err)
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}
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for _, fileInfo := range list {
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err = wft.iterDirectory(path.Join(fpath, fileInfo.Name()), fileInfo)
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if err != nil {
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if !fileInfo.IsDir() || err != path.SkipDir {
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return err
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}
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}
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}
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return nil
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}
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func (wft *walkFileTree) walkRoot(root string) error {
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wft.prefix = root
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fi, err := os.Stat(root)
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if err != nil {
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return err
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}
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return wft.iterDirectory(root, fi)
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}
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type tarWalk struct {
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walkFileTree
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tw *tar.Writer
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}
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func (wft *tarWalk) compress(name, fpath string, fi os.FileInfo) (bool, error) {
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isSym := fi.Mode()&os.ModeSymlink > 0
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link := ""
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if isSym {
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link, _ = os.Readlink(fpath)
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}
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hdr, err := tar.FileInfoHeader(fi, link)
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if err != nil {
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return false, err
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}
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hdr.Name = name
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tw := wft.tw
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err = tw.WriteHeader(hdr)
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if err != nil {
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return false, err
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}
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if !isSym {
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fr, err := os.Open(fpath)
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if err != nil {
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return false, err
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}
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defer utils.CloseFile(fr)
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_, err = io.Copy(tw, fr)
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if err != nil {
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return false, err
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}
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tw.Flush()
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}
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return true, nil
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}
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type zipWalk struct {
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walkFileTree
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zw *zip.Writer
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}
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func (wft *zipWalk) compress(name, fpath string, fi os.FileInfo) (bool, error) {
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isSym := fi.Mode()&os.ModeSymlink > 0
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hdr, err := zip.FileInfoHeader(fi)
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if err != nil {
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return false, err
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}
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hdr.Name = name
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zw := wft.zw
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w, err := zw.CreateHeader(hdr)
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if err != nil {
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return false, err
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}
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if !isSym {
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fr, err := os.Open(fpath)
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if err != nil {
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return false, err
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}
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defer utils.CloseFile(fr)
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_, err = io.Copy(w, fr)
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if err != nil {
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return false, err
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}
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} else {
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var link string
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if link, err = os.Readlink(fpath); err != nil {
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return false, err
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}
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_, err = w.Write([]byte(link))
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if err != nil {
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return false, err
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}
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}
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return true, nil
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}
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func packDirectory(output io.Writer, excludePrefix []string, excludeSuffix []string,
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excludeRegexp []*regexp.Regexp, includePath ...string) (err error) {
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beeLogger.Log.Infof("Excluding relpath prefix: %s", strings.Join(excludePrefix, ":"))
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beeLogger.Log.Infof("Excluding relpath suffix: %s", strings.Join(excludeSuffix, ":"))
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if len(excludeRegexp) > 0 {
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beeLogger.Log.Infof("Excluding filename regex: `%s`", strings.Join(excludeR, "`, `"))
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}
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w, err := os.OpenFile(outputP, os.O_CREATE|os.O_WRONLY|os.O_TRUNC, 0644)
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if err != nil {
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return err
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}
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var wft walker
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if format == "zip" {
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walk := new(zipWalk)
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walk.output = &output
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zw := zip.NewWriter(w)
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defer func() {
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zw.Close()
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}()
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walk.allfiles = make(map[string]bool)
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walk.zw = zw
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walk.wak = walk
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walk.excludePrefix = excludePrefix
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walk.excludeSuffix = excludeSuffix
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walk.excludeRegexp = excludeRegexp
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wft = walk
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} else {
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walk := new(tarWalk)
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walk.output = &output
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cw := gzip.NewWriter(w)
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tw := tar.NewWriter(cw)
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defer func() {
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tw.Flush()
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cw.Flush()
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tw.Close()
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cw.Close()
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}()
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walk.allfiles = make(map[string]bool)
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walk.tw = tw
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walk.wak = walk
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walk.excludePrefix = excludePrefix
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walk.excludeSuffix = excludeSuffix
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walk.excludeRegexp = excludeRegexp
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wft = walk
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}
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for _, p := range includePath {
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err = wft.walkRoot(p)
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if err != nil {
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return
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}
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}
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return
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}
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func packApp(cmd *commands.Command, args []string) int {
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output := cmd.Out()
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curPath, _ := os.Getwd()
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var thePath string
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nArgs := []string{}
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has := false
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for _, a := range args {
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if a != "" && a[0] == '-' {
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has = true
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}
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if has {
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nArgs = append(nArgs, a)
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}
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}
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cmd.Flag.Parse(nArgs)
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if !path.IsAbs(appPath) {
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appPath = path.Join(curPath, appPath)
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}
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thePath, err := path.Abs(appPath)
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if err != nil {
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beeLogger.Log.Fatalf("Wrong application path: %s", thePath)
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}
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if stat, err := os.Stat(thePath); os.IsNotExist(err) || !stat.IsDir() {
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beeLogger.Log.Fatalf("Application path does not exist: %s", thePath)
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}
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beeLogger.Log.Infof("Packaging application on '%s'...", thePath)
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appName := path.Base(thePath)
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goos := runtime.GOOS
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if v, found := syscall.Getenv("GOOS"); found {
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goos = v
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}
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goarch := runtime.GOARCH
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if v, found := syscall.Getenv("GOARCH"); found {
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goarch = v
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}
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str := strconv.FormatInt(time.Now().UnixNano(), 10)[9:]
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tmpdir := path.Join(os.TempDir(), "beePack-"+str)
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os.Mkdir(tmpdir, 0700)
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defer func() {
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// Remove the tmpdir once bee pack is done
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err := os.RemoveAll(tmpdir)
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if err != nil {
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beeLogger.Log.Error("Failed to remove the generated temp dir")
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}
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}()
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if build {
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beeLogger.Log.Info("Building application...")
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var envs []string
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for _, env := range buildEnvs {
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parts := strings.SplitN(env, "=", 2)
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if len(parts) == 2 {
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k, v := strings.TrimSpace(parts[0]), strings.TrimSpace(parts[1])
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if len(k) > 0 && len(v) > 0 {
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switch k {
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case "GOOS":
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goos = v
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case "GOARCH":
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goarch = v
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default:
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envs = append(envs, fmt.Sprintf("%s=%s", k, v))
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}
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}
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}
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}
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os.Setenv("GOOS", goos)
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os.Setenv("GOARCH", goarch)
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beeLogger.Log.Infof("Using: GOOS=%s GOARCH=%s", goos, goarch)
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binPath := path.Join(tmpdir, appName)
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if goos == "windows" {
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binPath += ".exe"
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}
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args := []string{"build", "-o", binPath}
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if len(buildArgs) > 0 {
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args = append(args, strings.Fields(buildArgs)...)
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}
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if verbose {
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fmt.Fprintf(output, "\t%s%s+ go %s%s%s\n", "\x1b[32m", "\x1b[1m", strings.Join(args, " "), "\x1b[21m", "\x1b[0m")
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}
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execmd := exec.Command("go", args...)
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execmd.Env = append(os.Environ(), envs...)
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execmd.Stdout = os.Stdout
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execmd.Stderr = os.Stderr
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execmd.Dir = thePath
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err = execmd.Run()
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if err != nil {
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beeLogger.Log.Fatal(err.Error())
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}
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beeLogger.Log.Success("Build Successful!")
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}
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switch format {
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case "zip":
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default:
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format = "tar.gz"
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}
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outputN := appName + "." + format
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if outputP == "" || !path.IsAbs(outputP) {
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outputP = path.Join(curPath, outputP)
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}
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if _, err := os.Stat(outputP); err != nil {
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err = os.MkdirAll(outputP, 0755)
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if err != nil {
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beeLogger.Log.Fatal(err.Error())
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}
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}
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outputP = path.Join(outputP, outputN)
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var exp, exs []string
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for _, p := range strings.Split(excludeP, ":") {
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if len(p) > 0 {
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exp = append(exp, p)
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}
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}
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for _, p := range strings.Split(excludeS, ":") {
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if len(p) > 0 {
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exs = append(exs, p)
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}
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}
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var exr []*regexp.Regexp
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for _, r := range excludeR {
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if len(r) > 0 {
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if re, err := regexp.Compile(r); err != nil {
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beeLogger.Log.Fatal(err.Error())
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} else {
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exr = append(exr, re)
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}
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}
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}
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|
|
beeLogger.Log.Infof("Writing to output: %s", outputP)
|
|
|
|
err = packDirectory(output, exp, exs, exr, tmpdir, thePath)
|
|
if err != nil {
|
|
beeLogger.Log.Fatal(err.Error())
|
|
}
|
|
|
|
beeLogger.Log.Success("Application packed!")
|
|
return 0
|
|
}
|