2019-07-31 00:21:26 +03:00
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package pkger
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import (
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"fmt"
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"os"
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"path/filepath"
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"strings"
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2019-08-02 07:22:17 +03:00
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"sync"
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2019-07-31 23:29:49 +03:00
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"time"
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2019-07-31 00:21:26 +03:00
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"github.com/gobuffalo/here"
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)
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type index struct {
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Files *filesMap `json:"files"`
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Infos *infosMap `json:"infos"`
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Paths *pathsMap `json:"paths"`
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Current here.Info `json:"current"`
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once sync.Once
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}
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2019-08-03 23:36:56 +03:00
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func (i *index) Parse(p string) (Path, error) {
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pt, ok := i.Paths.Load(p)
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if ok {
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return pt, nil
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}
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if len(p) == 0 {
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return build(p, "", "")
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}
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res := pathrx.FindAllStringSubmatch(p, -1)
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if len(res) == 0 {
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return pt, fmt.Errorf("could not parse %q", p)
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}
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matches := res[0]
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if len(matches) != 4 {
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return pt, fmt.Errorf("could not parse %q", p)
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}
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return build(p, matches[1], matches[3])
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return rootIndex.Parse(p)
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}
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func (i *index) Info(p string) (here.Info, error) {
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info, ok := i.Infos.Load(p)
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if ok {
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return info, nil
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}
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info, err := here.Cache(p, here.Package)
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if err != nil {
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return info, err
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}
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i.Infos.Store(p, info)
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return info, nil
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}
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func (i *index) Stat() (here.Info, error) {
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i.once.Do(func() {
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i.Current, _ = here.Cache("", func(string) (here.Info, error) {
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return here.Current()
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})
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})
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return i.Current, nil
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}
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2019-08-02 05:34:32 +03:00
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func (i *index) Create(pt Path) (*File, error) {
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her, err := Info(pt.Pkg)
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if err != nil {
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return nil, err
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}
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f := &File{
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path: pt,
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her: her,
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info: &FileInfo{
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name: strings.TrimPrefix(pt.Name, "/"),
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mode: 0666,
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modTime: time.Now(),
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},
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}
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if i.Files == nil {
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i.Files = &filesMap{}
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2019-08-02 22:14:11 +03:00
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}
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i.Files.Store(pt, f)
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return f, nil
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2019-07-31 18:53:36 +03:00
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}
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2019-08-03 23:36:56 +03:00
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// func (i *index) MarshalJSON() ([]byte, error) {
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// m := map[string]interface{}{}
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//
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// m["files"] = i.Files
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// m["infos"] = i.Infos
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// m["current"] = i.Current
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//
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// b, err := json.Marshal(m)
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// if err != nil {
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// return nil, err
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// }
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//
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// hep := hepa.New()
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// hep = hepa.With(hep, filters.Golang())
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// hep = hepa.With(hep, filters.Secrets())
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// return hep.Filter(b)
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// }
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// func (i *index) UnmarshalJSON(b []byte) error {
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// m := map[string]json.RawMessage{}
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//
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// if err := json.Unmarshal(b, &m); err != nil {
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// return err
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// }
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//
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// infos, ok := m["infos"]
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// if !ok {
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// return fmt.Errorf("missing infos")
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// }
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// i.Infos = &infosMap{}
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// if err := json.Unmarshal(infos, i.Infos); err != nil {
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// return err
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// }
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//
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// files, ok := m["files"]
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// if !ok {
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// return fmt.Errorf("missing files")
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// }
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//
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// i.Files = &filesMap{}
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// if err := json.Unmarshal(files, i.Files); err != nil {
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// return err
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// }
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//
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// current, ok := m["current"]
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// if !ok {
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// return fmt.Errorf("missing current")
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// }
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// if err := json.Unmarshal(current, &i.Current); err != nil {
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// return err
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// }
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// return nil
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// }
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2019-08-02 05:34:32 +03:00
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func (i index) Walk(pt Path, wf WalkFunc) error {
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var err error
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i.Files.Range(func(k Path, v *File) bool {
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if k.Pkg != pt.Pkg {
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return true
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}
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if err = wf(k, v.info); err != nil {
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return false
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}
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return true
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})
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if err != nil {
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return err
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}
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var info here.Info
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if pt.Pkg == "." {
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info, err = Stat()
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if err != nil {
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return err
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}
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pt.Pkg = info.ImportPath
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}
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if info.IsZero() {
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info, err = Info(pt.Pkg)
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if err != nil {
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return fmt.Errorf("%s: %s", pt, err)
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}
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}
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fp := filepath.Join(info.Dir, pt.Name)
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err = filepath.Walk(fp, func(path string, fi os.FileInfo, err error) error {
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if err != nil {
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return err
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}
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path = strings.TrimPrefix(path, info.Dir)
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pt, err := Parse(fmt.Sprintf("%s:%s", pt.Pkg, path))
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if err != nil {
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return err
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}
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return wf(pt, NewFileInfo(fi))
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})
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return err
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}
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func (i *index) Open(pt Path) (*File, error) {
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f, ok := i.Files.Load(pt)
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if !ok {
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return i.openDisk(pt)
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}
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nf := &File{
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info: f.info,
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path: f.path,
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data: f.data,
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her: f.her,
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}
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return nf, nil
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}
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2019-08-02 05:34:32 +03:00
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func (i index) openDisk(pt Path) (*File, error) {
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info, err := Info(pt.Pkg)
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if err != nil {
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return nil, err
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}
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fp := info.Dir
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if len(pt.Name) > 0 {
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fp = filepath.Join(fp, pt.Name)
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}
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fi, err := os.Stat(fp)
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if err != nil {
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return nil, err
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}
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f := &File{
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info: WithName(strings.TrimPrefix(pt.Name, "/"), NewFileInfo(fi)),
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her: info,
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path: pt,
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}
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return f, nil
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}
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2019-07-31 23:29:49 +03:00
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func newIndex() *index {
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return &index{
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Files: &filesMap{},
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Infos: &infosMap{},
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Paths: &pathsMap{},
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}
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2019-07-31 00:21:26 +03:00
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}
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2019-07-31 23:29:49 +03:00
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2019-08-02 05:34:32 +03:00
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var rootIndex = func() *index {
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i := newIndex()
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return i
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}()
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