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localfs.go
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localfs.go
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package xbindata
import (
"os"
"strings"
)
const tagDev = "dev"
func localFs(c *Config) (err error) {
var (
f *os.File
pth string
)
if c.Outlined {
pth = strings.TrimSuffix(c.OutlinedApi, ".go") + "_dev.go"
}
if f, err = os.Create(pth); err != nil {
return
}
defer f.Close()
if _, err = f.WriteString("// +build " + tagDev + "\n\npackage " + c.Package + "\n"); err != nil {
return
}
var data string
data += `
import (
"bufio"
"os"
"path"
"strings"
"sync"
path_helpers "github.com/moisespsena-go/path-helpers"
"gopkg.in/yaml.v2"
"github.com/moisespsena-go/assetfs"
fsapi "github.com/moisespsena-go/assetfs/assetfsapi"
bc "github.com/moisespsena-go/xbindata/xbcommon"
"github.com/moisespsena-go/xbindata/xbfs"
)
var (
loaded bool
mu sync.Mutex
fs fsapi.Interface
fsLoadCallbacks []func(fs fsapi.Interface)
__file__ = path_helpers.GetCalledFile(true)
)
func OnFsLoad(cb ...func(fs fsapi.Interface)) {
fsLoadCallbacks = append(fsLoadCallbacks, cb...)
}
func callFsLoadCallbacks() {
for _, f := range fsLoadCallbacks {
f(fs)
}
}
func Load() {
if loaded {
return
}
mu.Lock()
defer mu.Unlock()
if loaded {
return
}
defer func() { loaded = true }()
pathsF, err := os.Open(strings.TrimSuffix(__file__, "_dev.go") + "_toc_paths.yml")
if err != nil {
panic(err)
}
defer pathsF.Close()
namesF, err := os.Open(strings.TrimSuffix(__file__, "_dev.go") + "_toc_names.yml")
if err != nil {
panic(err)
}
defer namesF.Close()
pathScanner := bufio.NewScanner(pathsF)
nameScanner := bufio.NewScanner(namesF)
// skip first line
pathScanner.Scan()
nameScanner.Scan()
var assets []bc.Asset
for pathScanner.Scan() && nameScanner.Scan() {
var (
nameS []struct{ Name string }
pathS []string
pth = pathScanner.Text()
name = nameScanner.Text()
)
yaml.Unmarshal([]byte(pth), &pathS)
yaml.Unmarshal([]byte(name), &nameS)
pth, name = path.Join(path.Dir(__file__), pathS[0]), nameS[0].Name
if info, err := os.Stat(pth); err != nil {
panic(err)
} else {
localAsset := assetfs.NewRealFileInfo(fsapi.OsFileInfoToBasic(name, info), pth)
assets = append(assets, &bc.LocalFile{RealFileInfo: localAsset})
}
}
fs = xbfs.NewFileSystem(bc.NewTree(assets...).Root())
}
func FS() fsapi.Interface {
Load()
return fs
}
`
_, err = f.WriteString(data)
return
}