// FromArg gets the json/yaml file from args
func (f *File) FromArg(read bool) error {
// (length - 1)
arg := os.Args[len(os.Args)-1:][0]
// get extension
ext := path.Ext(arg)
if len(ext) > 1 {
ext = ext[1:] // remove dot
}
// when json/yaml file isn't found on last arg
// it searches for a ".json" or ".yaml" string in all args
if ext != "json" && ext != "yaml" {
// loop through args
for _, a := range os.Args {
// get extension
ext := path.Ext(a)
// check for valid extensions
if ext == ".json" || ext == ".yaml" {
f.Mode = ext[1:] // remove dot
ext = f.Mode
arg = a
break
}
}
} else {
f.Mode = ext
}
// check if extension is json or yaml
// then get it's absolute path
if ext == "json" || ext == "yaml" {
abs := filepath.IsAbs(arg)
if !abs {
dir, err := utils.GetCurrentDir()
if err != nil {
return err
}
arg = filepath.Clean(dir + "/" + arg)
}
f.FilePath = arg
// so we can test without reading a file
if read {
if !utils.Exists(f.FilePath) {
return errors.New("Error: I Can't find the config file at [" + f.FilePath + "]")
}
}
} else {
return errors.New("Error: You must specify a json or yaml file")
}
return nil
}
func TestConfigClean(t *testing.T) {
var err error
cfg := new(Config)
cfg.Dest = "./clean_test123456789/"
cfg.Clean = true
err = os.Mkdir(cfg.Dest, 0777)
assert.NoError(t, err)
var files = []string{
"a.go",
"b.go",
"c.go",
"d.go",
"e.go",
"f.go",
"g.go",
"h.go",
}
// write files into the folder so it can be cleaned by Config.Defaults()
nothing := []byte("nothing")
for _, file := range files {
err = ioutil.WriteFile(cfg.Dest+"b0xfile_"+file, nothing, 0777)
assert.NoError(t, err)
assert.True(t, utils.Exists(cfg.Dest+"b0xfile_"+file))
}
// clean
err = cfg.Defaults()
assert.NoError(t, err)
// verify that the files were deleTed
for _, file := range files {
assert.False(t, utils.Exists(cfg.Dest+"b0xfile_"+file))
}
// delete dest folder
os.RemoveAll(cfg.Dest)
assert.False(t, utils.Exists(cfg.Dest))
}
// Load the json/yaml file that was specified from args
// and transform it into a config struct
func (f *File) Load() (*Config, error) {
var err error
if !utils.Exists(f.FilePath) {
return nil, errors.New("Error: I Can't find the config file at [" + f.FilePath + "]")
}
// read file
f.Data, err = ioutil.ReadFile(f.FilePath)
if err != nil {
return nil, err
}
// parse file
return f.Parse()
}
func main() {
runtime.GOMAXPROCS(runtime.NumCPU())
// create config and try to get b0x file from args
f := new(config.File)
err = f.FromArg(true)
if err != nil {
log.Fatal(err)
}
// load b0x file's config
cfg, err = f.Load()
if err != nil {
log.Fatal(err)
}
err = cfg.Defaults()
if err != nil {
log.Fatal(err)
}
// creates a config that can be inserTed into custom
// without causing a import cycle
sharedConfig := new(custom.SharedConfig)
sharedConfig.Output = cfg.Output
sharedConfig.Compression = compression.NewGzip()
sharedConfig.Compression.Options = cfg.Compression
// loop through b0x's [custom] objects
for _, c := range cfg.Custom {
err = c.Parse(&files, &dirs, sharedConfig)
if err != nil {
log.Fatal(err)
}
}
// create files template and exec it
t := new(template.Template)
t.Set("files")
t.Variables = struct {
Pkg string
Files map[string]*file.File
Spread bool
DirList []string
Compression *compression.Options
Debug bool
}{
Pkg: cfg.Pkg,
Files: files,
Spread: cfg.Spread,
DirList: dirs.Clean(),
Compression: cfg.Compression,
Debug: cfg.Debug,
}
tmpl, err := t.Exec()
if err != nil {
log.Fatal(err)
}
// create dest folder when it doesn't exists
if !utils.Exists(cfg.Dest) {
err = os.MkdirAll(cfg.Dest, 0777)
if err != nil {
log.Fatal(err)
}
}
// gofmt
if cfg.Fmt {
tmpl, err = format.Source(tmpl)
if err != nil {
log.Fatal(err)
}
}
// write final execuTed template into the destination file
err = ioutil.WriteFile(cfg.Dest+cfg.Output, tmpl, 0777)
if err != nil {
log.Fatal(err)
}
// write spread files
if cfg.Spread {
a := strings.Split(path.Dir(cfg.Dest), "/")
dirName := a[len(a)-1:][0]
for _, f := range files {
a := strings.Split(path.Dir(f.Path), "/")
fileDirName := a[len(a)-1:][0]
if dirName == fileDirName {
continue
}
// transform / to _ and some other chars...
customName := "b0xfile_" + utils.FixName(f.Path) + ".go"
// creates file template and exec it
t := new(template.Template)
t.Set("file")
t.Variables = struct {
Pkg string
Path string
Name string
Dir [][]string
Data string
Compression *compression.Options
}{
Pkg: cfg.Pkg,
Path: f.Path,
Name: f.Name,
Dir: dirs.List,
Data: f.Data,
Compression: cfg.Compression,
}
tmpl, err := t.Exec()
if err != nil {
log.Fatal(err)
}
// gofmt
if cfg.Fmt {
tmpl, err = format.Source(tmpl)
if err != nil {
log.Fatal(err)
}
}
// write final execuTed template into the destination file
err = ioutil.WriteFile(cfg.Dest+customName, tmpl, 0777)
if err != nil {
log.Fatal(err)
}
}
}
// success
log.Println("fileb0x:", cfg.Dest+cfg.Output, "written!")
}