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package main
import (
"archive/zip"
"fmt"
"go/build"
"io"
"os"
"os/exec"
"path/filepath"
"runtime"
"strings"
"time"
"github.com/daaku/go.zipexe"
)
func operationAppend(pkgs []*build.Package) {
if runtime.GOOS == "windows" {
_, err := exec.LookPath("zip")
if err != nil {
fmt.Println("#### WARNING ! ####")
fmt.Println("`rice append` is known not to work under windows because the `zip` command is not available. Please let me know if you got this to work (and how).")
}
}
// MARKED FOR DELETION
// This is actually not required, the append command now has the option --exec required.
// // check if package is a command
// if !pkg.IsCommand() {
// fmt.Println("Error: can not append to non-main package. Please follow instructions at github.com/GeertJohan/go.rice")
// os.Exit(1)
// }
// create tmp zipfile
tmpZipfileName := filepath.Join(os.TempDir(), fmt.Sprintf("ricebox-%d-%s.zip", time.Now().Unix(), randomString(10)))
verbosef("Will create tmp zipfile: %s\n", tmpZipfileName)
tmpZipfile, err := os.Create(tmpZipfileName)
if err != nil {
fmt.Printf("Error creating tmp zipfile: %s\n", err)
os.Exit(1)
}
defer func() {
tmpZipfile.Close()
os.Remove(tmpZipfileName)
}()
// find abs path for binary file
binfileName, err := filepath.Abs(flags.Append.Executable)
if err != nil {
fmt.Printf("Error finding absolute path for executable to append: %s\n", err)
os.Exit(1)
}
verbosef("Will append to file: %s\n", binfileName)
// check that command doesn't already have zip appended
if rd, _ := zipexe.Open(binfileName); rd != nil {
fmt.Printf("Cannot append to already appended executable. Please remove %s and build a fresh one.\n", binfileName)
os.Exit(1)
}
// open binfile
binfile, err := os.OpenFile(binfileName, os.O_WRONLY, os.ModeAppend)
if err != nil {
fmt.Printf("Error: unable to open executable file: %s\n", err)
os.Exit(1)
}
// create zip.Writer
zipWriter := zip.NewWriter(tmpZipfile)
for _, pkg := range pkgs {
// find boxes for this command
boxMap := findBoxes(pkg)
// notify user when no calls to rice.FindBox are made (is this an error and therefore os.Exit(1) ?
if len(boxMap) == 0 {
fmt.Printf("no calls to rice.FindBox() or rice.MustFindBox() found in import path `%s`\n", pkg.ImportPath)
continue
}
verbosef("\n")
for boxname := range boxMap {
appendedBoxName := strings.Replace(boxname, `/`, `-`, -1)
// walk box path's and insert files
boxPath := filepath.Clean(filepath.Join(pkg.Dir, boxname))
filepath.Walk(boxPath, func(path string, info os.FileInfo, err error) error {
if info == nil {
fmt.Printf("Error: box \"%s\" not found on disk\n", path)
os.Exit(1)
}
// create zipFilename
zipFileName := filepath.Join(appendedBoxName, strings.TrimPrefix(path, boxPath))
// write directories as empty file with comment "dir"
if info.IsDir() {
_, err := zipWriter.CreateHeader(&zip.FileHeader{
Name: zipFileName,
Comment: "dir",
})
if err != nil {
fmt.Printf("Error creating dir in tmp zip: %s\n", err)
os.Exit(1)
}
return nil
}
// create zipFileWriter
zipFileHeader, err := zip.FileInfoHeader(info)
if err != nil {
fmt.Printf("Error creating zip FileHeader: %v\n", err)
os.Exit(1)
}
zipFileHeader.Name = zipFileName
zipFileWriter, err := zipWriter.CreateHeader(zipFileHeader)
if err != nil {
fmt.Printf("Error creating file in tmp zip: %s\n", err)
os.Exit(1)
}
srcFile, err := os.Open(path)
if err != nil {
fmt.Printf("Error opening file to append: %s\n", err)
os.Exit(1)
}
_, err = io.Copy(zipFileWriter, srcFile)
if err != nil {
fmt.Printf("Error copying file contents to zip: %s\n", err)
os.Exit(1)
}
srcFile.Close()
return nil
})
}
}
err = zipWriter.Close()
if err != nil {
fmt.Printf("Error closing tmp zipfile: %s\n", err)
os.Exit(1)
}
err = tmpZipfile.Sync()
if err != nil {
fmt.Printf("Error syncing tmp zipfile: %s\n", err)
os.Exit(1)
}
_, err = tmpZipfile.Seek(0, 0)
if err != nil {
fmt.Printf("Error seeking tmp zipfile: %s\n", err)
os.Exit(1)
}
_, err = binfile.Seek(0, 2)
if err != nil {
fmt.Printf("Error seeking bin file: %s\n", err)
os.Exit(1)
}
_, err = io.Copy(binfile, tmpZipfile)
if err != nil {
fmt.Printf("Error appending zipfile to executable: %s\n", err)
os.Exit(1)
}
zipA := exec.Command("zip", "-A", binfileName)
err = zipA.Run()
if err != nil {
fmt.Printf("Error setting zip offset: %s\n", err)
os.Exit(1)
}
}
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