bindata/go-bindata/main.go

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// This work is subject to the CC0 1.0 Universal (CC0 1.0) Public Domain Dedication
// license. Its contents can be found at:
// http://creativecommons.org/publicdomain/zero/1.0/
package main
import (
"flag"
"fmt"
"github.com/jteeuwen/go-bindata"
"os"
"path/filepath"
)
func main() {
cfg, status := parseArgs()
err := bindata.Translate(cfg, status)
if err != nil {
fmt.Fprintf(os.Stderr, "bindata: %v", err)
}
}
// parseArgs create s a new, filled configuration instance
// by reading and parsing command line options.
//
// This function exits the program with an error, if
// any of the command line options are incorrect.
func parseArgs() (*bindata.Config, bindata.ProgressFunc) {
var version, quiet bool
c := bindata.NewConfig()
flag.Usage = func() {
fmt.Printf("Usage: %s [options] <input> [<output>]\n\n", os.Args[0])
flag.PrintDefaults()
}
flag.StringVar(&c.Tags, "tags", c.Tags, "Comma-separated list of build tags to include.")
flag.StringVar(&c.Prefix, "prefix", c.Prefix, "Optional path prefix to strip off map keys and function names.")
flag.StringVar(&c.Package, "pkg", c.Package, "Package name to use in the generated code.")
flag.BoolVar(&c.NoMemCopy, "nomemcopy", c.NoMemCopy, "Use a .rodata hack to get rid of unnecessary memcopies. Refer to the documentation to see what implications this carries.")
flag.BoolVar(&c.Compress, "nocompress", !c.Compress, "Assets will /not/ be GZIP compressed when this flag is specified.")
flag.BoolVar(&version, "version", false, "Displays version information.")
flag.BoolVar(&quiet, "quiet", false, "Do not print conversion status.")
flag.Parse()
if version {
fmt.Printf("%s\n", Version())
os.Exit(0)
}
// Make sure we have in/output paths.
if flag.NArg() == 0 {
fmt.Fprintf(os.Stderr, "Missing asset directory.\n")
os.Exit(1)
}
// Test validity of input path.
c.Input = filepath.Clean(flag.Arg(0))
stat, err := os.Lstat(c.Input)
if err != nil {
fmt.Fprintf(os.Stderr, "Input path: %v.\n", err)
os.Exit(1)
}
if !stat.IsDir() {
fmt.Fprintf(os.Stderr, "Input path is not a directory.\n")
os.Exit(1)
}
// Find and test validity of output path.
if flag.NArg() > 1 {
c.Output = filepath.Clean(flag.Arg(1))
stat, err := os.Lstat(c.Output)
if err != nil {
if !os.IsNotExist(err) {
fmt.Fprintf(os.Stderr, "Output path: %v.\n", err)
os.Exit(1)
}
// Create output directory
err = os.MkdirAll(c.Output, 0744)
if err != nil {
fmt.Fprintf(os.Stderr, "Create Output directory: %v.\n", err)
os.Exit(1)
}
} else if !stat.IsDir() {
fmt.Fprintf(os.Stderr, "Output path is not a directory.\n")
os.Exit(1)
}
} else {
// If no output path is specified, use the current directory.
c.Output, err = os.Getwd()
if err != nil {
fmt.Fprintf(os.Stderr, "Unable to determine current working directory: %v\n", err)
os.Exit(1)
}
}
// The command line flag supplies the inversion of this value.
c.Compress = !c.Compress
if quiet {
return c, nil
}
return c, func(file string, current, total int) bool {
fmt.Printf("[%d/%d] %s\n", current, total, file)
return false
}
}