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main.go
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main.go
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package main
import (
"bufio"
"bytes"
"fmt"
"os"
"os/exec"
)
const bindatafile = "bindata.go"
func main() {
if _, err := exec.LookPath("go-bindata"); err != nil {
fmt.Println("Cannot find go-bindata executable in path")
fmt.Println("Maybe you need: go get github.com/elazarl/go-bindata-assetfs/...")
os.Exit(1)
}
cmd := exec.Command("go-bindata", os.Args[1:]...)
cmd.Stdin = os.Stdin
cmd.Stdout = os.Stdout
cmd.Stderr = os.Stderr
if err := cmd.Run(); err != nil {
os.Exit(1)
}
in, err := os.Open(bindatafile)
if err != nil {
fmt.Fprintln(os.Stderr, "Cannot read", bindatafile, err)
return
}
out, err := os.Create("bindata_assetfs.go")
if err != nil {
fmt.Fprintln(os.Stderr, "Cannot write 'bindata_assetfs.go'", err)
return
}
r := bufio.NewReader(in)
done := false
for line, isPrefix, err := r.ReadLine(); err == nil; line, isPrefix, err = r.ReadLine() {
line = append(line, '\n')
if _, err := out.Write(line); err != nil {
fmt.Fprintln(os.Stderr, "Cannot write to 'bindata_assetfs.go'", err)
return
}
if !done && !isPrefix && bytes.HasPrefix(line, []byte("import (")) {
fmt.Fprintln(out, "\t\"github.com/elazarl/go-bindata-assetfs\"")
done = true
}
}
fmt.Fprintln(out, `
func assetFS() *assetfs.AssetFS {
for k := range _bintree.Children {
return &assetfs.AssetFS{Asset: Asset, AssetDir: AssetDir, Prefix: k}
}
panic("unreachable")
}`)
// Close files BEFORE remove calls (don't use defer).
in.Close()
out.Close()
if err := os.Remove(bindatafile); err != nil {
fmt.Fprintln(os.Stderr, "Cannot remove", bindatafile, err)
}
}