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jumpin' jack flash its a gas, gas, gas

This commit is contained in:
Mark Bates 2019-10-20 17:52:16 -04:00
parent 680e5e6a09
commit e587484724
14 changed files with 253 additions and 154 deletions
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10
cmd/pkger/cmds/pack.go
View File

@ -9,7 +9,7 @@ import (
"github.com/markbates/pkger"
"github.com/markbates/pkger/here"
"github.com/markbates/pkger/parser"
"github.com/markbates/pkger/pkging/stuffing"
"github.com/markbates/pkger/pkging/stdos"
)
const outName = "pkged.go"
@ -140,8 +140,12 @@ func Package(out string, paths []here.Path) error {
}
fmt.Fprintf(f, "\nvar _ = pkger.Apply(mem.UnmarshalEmbed([]byte(`")
if err := stuffing.Stuff(f, c, paths); err != nil {
os.RemoveAll(out)
disk, err := stdos.New(c)
if err != nil {
return err
}
if err := disk.Stuff(f, paths); err != nil {
return err
}

4
examples/walk/pkger/go.mod
View File

@ -2,4 +2,6 @@ module app
go 1.13
require github.com/markbates/pkger v0.0.0-20191016200917-09e9684b656b
require github.com/markbates/pkger v0.1.0
replace github.com/markbates/pkger => ../../../

4
examples/walk/pkger/go.sum
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@ -6,8 +6,6 @@ github.com/kr/pretty v0.1.0/go.mod h1:dAy3ld7l9f0ibDNOQOHHMYYIIbhfbHSm3C4ZsoJORN
github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
github.com/kr/text v0.1.0 h1:45sCR5RtlFHMR4UwH9sdQ5TC8v0qDQCHnXt+kaKSTVE=
github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI=
github.com/markbates/pkger v0.0.0-20191016200917-09e9684b656b h1:cXYQ3JZQkRLFyN8m22Q58mOhdKyTooPqvGt8pyWR8eA=
github.com/markbates/pkger v0.0.0-20191016200917-09e9684b656b/go.mod h1:0nBNvgA9jJk9gWhO/BcIYz1qJ8BJ0MWCSyKFPApdWNs=
github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
@ -18,3 +16,5 @@ gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127 h1:qIbj1fsPNlZgppZ+VLlY7N33
gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
gopkg.in/yaml.v2 v2.2.2 h1:ZCJp+EgiOT7lHqUV2J862kp8Qj64Jo6az82+3Td9dZw=
gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
gopkg.in/yaml.v2 v2.2.4 h1:/eiJrUcujPVeJ3xlSWaiNi3uSVmDGBK1pDHUHAnao1I=
gopkg.in/yaml.v2 v2.2.4/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=

1
pkging/embed.go Normal file
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@ -0,0 +1 @@
package pkging

58
pkging/embed/embed.go Normal file
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@ -0,0 +1,58 @@
package embed
import (
"bytes"
"compress/gzip"
"encoding/hex"
"encoding/json"
"github.com/markbates/pkger/here"
)
type Embedder interface {
MarshalEmbed() ([]byte, error)
}
type Unembedder interface {
UnmarshalEmbed([]byte) error
}
type Data struct {
Infos map[string]here.Info `json:"infos"`
Files map[string]File `json:"files"`
Here here.Info `json:"here"`
}
func (d *Data) MarshalEmbed() ([]byte, error) {
bb := &bytes.Buffer{}
gz := gzip.NewWriter(bb)
defer gz.Close()
if err := json.NewEncoder(gz).Encode(d); err != nil {
return nil, err
}
if err := gz.Close(); err != nil {
return nil, err
}
s := hex.EncodeToString(bb.Bytes())
return []byte(s), nil
}
func (d *Data) UnmarshalEmbed(in []byte) error {
b := make([]byte, len(in))
if _, err := hex.Decode(b, in); err != nil {
return err
}
gz, err := gzip.NewReader(bytes.NewReader(b))
if err != nil {
return err
}
defer gz.Close()
p := &Data{}
if err := json.NewDecoder(gz).Decode(p); err != nil {
return err
}
(*d) = *p
return nil
}

14
pkging/embed/file.go Normal file
View File

@ -0,0 +1,14 @@
package embed
import (
"github.com/markbates/pkger/here"
"github.com/markbates/pkger/pkging"
)
type File struct {
Info *pkging.FileInfo `json:"info"`
Here here.Info `json:"her"`
Path here.Path `json:"path"`
Data []byte `json:"data"`
Parent here.Path `json:"parent"`
}

15
pkging/faces.go Normal file
View File

@ -0,0 +1,15 @@
package pkging
import (
"io"
"github.com/markbates/pkger/here"
)
type Adder interface {
Add(files ...File) error
}
type Stuffer interface {
Stuff(w io.Writer, paths []here.Path) error
}

48
pkging/mem/add.go Normal file
View File

@ -0,0 +1,48 @@
package mem
import (
"bytes"
"io"
"path/filepath"
"github.com/markbates/pkger/pkging"
)
// Add copies the pkging.File into the *Pkger
func (fx *Pkger) Add(files ...pkging.File) error {
for _, f := range files {
info, err := f.Stat()
if err != nil {
return err
}
if f.Path().Pkg == fx.Here.ImportPath {
dir := filepath.Dir(f.Name())
if dir != "/" {
if err := fx.MkdirAll(dir, 0755); err != nil {
return err
}
}
}
mf := &File{
Here: f.Info(),
info: pkging.NewFileInfo(info),
path: f.Path(),
pkging: fx,
}
if !info.IsDir() {
bb := &bytes.Buffer{}
_, err = io.Copy(bb, f)
if err != nil {
return err
}
mf.data = bb.Bytes()
}
fx.files.Store(mf.Path(), mf)
}
return nil
}

27
pkging/mem/embed.go
View File

@ -21,6 +21,26 @@ func (pkg *Pkger) MarshalEmbed() ([]byte, error) {
return []byte(s), nil
}
func (pkg *Pkger) UnmarshalEmbed(in []byte) error {
b := make([]byte, len(in))
if _, err := hex.Decode(b, in); err != nil {
return err
}
gz, err := gzip.NewReader(bytes.NewReader(b))
if err != nil {
return err
}
defer gz.Close()
p := &Pkger{}
if err := json.NewDecoder(gz).Decode(p); err != nil {
return err
}
(*pkg) = *p
return nil
}
func UnmarshalEmbed(in []byte) (*Pkger, error) {
b := make([]byte, len(in))
if _, err := hex.Decode(b, in); err != nil {
@ -33,10 +53,9 @@ func UnmarshalEmbed(in []byte) (*Pkger, error) {
}
defer gz.Close()
pkg := &Pkger{}
if err := json.NewDecoder(gz).Decode(pkg); err != nil {
p := &Pkger{}
if err := json.NewDecoder(gz).Decode(p); err != nil {
return nil, err
}
return pkg, nil
return p, nil
}

6
pkging/mem/embed_test.go
View File

@ -10,7 +10,6 @@ import (
"github.com/markbates/pkger/pkging/mem"
"github.com/markbates/pkger/pkging/pkgtest"
"github.com/markbates/pkger/pkging/stdos"
"github.com/markbates/pkger/pkging/stuffing"
"github.com/stretchr/testify/require"
)
@ -80,10 +79,11 @@ func Test_Pkger_Embedding(t *testing.T) {
bb := &bytes.Buffer{}
err = stuffing.Stuff(bb, app.Info, paths)
err = disk.Stuff(bb, paths)
r.NoError(err)
pkg, err := mem.UnmarshalEmbed(bb.Bytes())
pkg := &mem.Pkger{}
err = pkg.UnmarshalEmbed(bb.Bytes())
r.NoError(err)
res = []string{}

40
pkging/mem/file.go
View File

@ -2,7 +2,6 @@ package mem
import (
"bytes"
"encoding/json"
"fmt"
"io"
"net/http"
@ -21,8 +20,8 @@ const timeFmt = time.RFC3339Nano
var _ pkging.File = &File{}
type File struct {
Here here.Info
info *pkging.FileInfo
her here.Info
path here.Path
data []byte
parent here.Path
@ -31,37 +30,6 @@ type File struct {
pkging pkging.Pkger
}
type fJay struct {
Info *pkging.FileInfo `json:"info"`
Her here.Info `json:"her"`
Path here.Path `json:"path"`
Data []byte `json:"data"`
Parent here.Path `json:"parent"`
}
func (f File) MarshalJSON() ([]byte, error) {
return json.Marshal(fJay{
Info: f.info,
Her: f.her,
Path: f.path,
Data: f.data,
Parent: f.parent,
})
}
func (f *File) UnmarshalJSON(b []byte) error {
var y fJay
if err := json.Unmarshal(b, &y); err != nil {
return err
}
f.info = y.Info
f.her = y.Her
f.path = y.Path
f.data = y.Data
f.parent = y.Parent
return nil
}
// Seek sets the offset for the next Read or Write on file to offset, interpreted according to whence: 0 means relative to the origin of the file, 1 means relative to the current offset, and 2 means relative to the end. It returns the new offset and an error, if any.
func (f *File) Seek(ofpkginget int64, whence int) (int64, error) {
if sk, ok := f.reader.(io.Seeker); ok {
@ -121,7 +89,7 @@ func (f *File) Write(b []byte) (int, error) {
// Info returns the here.Info of the file
func (f File) Info() here.Info {
return f.her
return f.Here
}
// Stat returns the FileInfo structure describing file. If there is an error, it will be of type *PathError.
@ -203,7 +171,7 @@ func (f *File) Readdir(count int) ([]os.FileInfo, error) {
// Open implements the http.FileSystem interface. A FileSystem implements access to a collection of named files. The elements in a file path are separated by slash ('/', U+002F) characters, regardless of host operating system convention.
func (f *File) Open(name string) (http.File, error) {
pt, err := f.her.Parse(name)
pt, err := f.Here.Parse(name)
if err != nil {
return nil, err
}
@ -227,7 +195,7 @@ func (f *File) Open(name string) (http.File, error) {
if fi.IsDir() {
d2 := &File{
info: pkging.NewFileInfo(fi),
her: di.Info(),
Here: di.Info(),
path: pt,
parent: f.path,
pkging: f.pkging,

98
pkging/mem/mem.go
View File

@ -1,10 +1,8 @@
package mem
import (
"bytes"
"encoding/json"
"fmt"
"io"
"os"
"path/filepath"
"strings"
@ -13,6 +11,7 @@ import (
"github.com/markbates/pkger/here"
"github.com/markbates/pkger/internal/maps"
"github.com/markbates/pkger/pkging"
"github.com/markbates/pkger/pkging/embed"
)
var _ pkging.Pkger = &Pkger{}
@ -34,43 +33,55 @@ type Pkger struct {
files *maps.Files
}
type jay struct {
Infos *maps.Infos `json:"infos"`
Files map[string]*File `json:"files"`
Current here.Info `json:"current"`
}
// MarshalJSON creates a fully re-hydratable JSON representation of *Pkger
func (p *Pkger) MarshalJSON() ([]byte, error) {
files := map[string]*File{}
files := map[string]embed.File{}
p.files.Range(func(key here.Path, file pkging.File) bool {
f, ok := file.(*File)
if !ok {
return true
}
files[key.String()] = f
ef := embed.File{
Info: f.info,
Here: f.Here,
Path: f.path,
Parent: f.parent,
Data: f.data,
}
files[key.String()] = ef
return true
})
return json.Marshal(jay{
Infos: p.infos,
infos := map[string]here.Info{}
p.infos.Range(func(key string, info here.Info) bool {
infos[key] = info
return true
})
return json.Marshal(embed.Data{
Infos: infos,
Files: files,
Current: p.Here,
Here: p.Here,
})
}
// UnmarshalJSON re-hydrates the *Pkger
func (p *Pkger) UnmarshalJSON(b []byte) error {
y := jay{}
y := &embed.Data{
Infos: map[string]here.Info{},
Files: map[string]embed.File{},
}
if err := json.Unmarshal(b, &y); err != nil {
return err
}
p.Here = y.Current
p.infos = y.Infos
p.Here = y.Here
p.infos = &maps.Infos{}
for k, v := range y.Infos {
p.infos.Store(k, v)
}
p.files = &maps.Files{}
for k, v := range y.Files {
@ -78,7 +89,15 @@ func (p *Pkger) UnmarshalJSON(b []byte) error {
if err != nil {
return err
}
p.files.Store(pt, v)
f := &File{
Here: v.Here,
info: v.Info,
path: v.Path,
data: v.Data,
parent: v.Parent,
}
p.files.Store(pt, f)
}
return nil
}
@ -149,43 +168,6 @@ func (fx *Pkger) RemoveAll(name string) error {
return nil
}
// Add copies the pkging.File into the *Pkger
func (fx *Pkger) Add(f pkging.File) error {
info, err := f.Stat()
if err != nil {
return err
}
if f.Path().Pkg == fx.Here.ImportPath {
dir := filepath.Dir(f.Name())
if dir != "/" {
if err := fx.MkdirAll(dir, 0755); err != nil {
return err
}
}
}
mf := &File{
her: f.Info(),
info: pkging.NewFileInfo(info),
path: f.Path(),
pkging: fx,
}
if !info.IsDir() {
bb := &bytes.Buffer{}
_, err = io.Copy(bb, f)
if err != nil {
return err
}
mf.data = bb.Bytes()
}
fx.files.Store(mf.Path(), mf)
return nil
}
// Create creates the named file with mode 0666 (before umask) - It's actually 0644, truncating it if it already exists. If successful, methods on the returned File can be used for I/O; the associated file descriptor has mode O_RDWR.
func (fx *Pkger) Create(name string) (pkging.File, error) {
fx.MkdirAll("/", 0755)
@ -207,8 +189,8 @@ func (fx *Pkger) Create(name string) (pkging.File, error) {
}
f := &File{
Here: her,
path: pt,
her: her,
info: &pkging.FileInfo{
Details: pkging.Details{
Name: pt.Name,
@ -249,9 +231,9 @@ func (fx *Pkger) MkdirAll(p string, perm os.FileMode) error {
continue
}
f := &File{
Here: cur,
pkging: fx,
path: pt,
her: cur,
info: &pkging.FileInfo{
Details: pkging.Details{
Name: pt.Name,
@ -301,7 +283,7 @@ func (fx *Pkger) Open(name string) (pkging.File, error) {
info: pkging.WithName(f.info.Name(), f.info),
path: f.path,
data: f.data,
her: f.her,
Here: f.Here,
}
return nf, nil

34
pkging/stdos/stdos.go
View File

@ -2,6 +2,7 @@ package stdos
import (
"fmt"
"io"
"os"
"path/filepath"
"strings"
@ -9,6 +10,7 @@ import (
"github.com/markbates/pkger/here"
"github.com/markbates/pkger/internal/maps"
"github.com/markbates/pkger/pkging"
"github.com/markbates/pkger/pkging/mem"
)
var _ pkging.Pkger = &Pkger{}
@ -18,6 +20,38 @@ type Pkger struct {
infos *maps.Infos
}
func (disk *Pkger) Stuff(w io.Writer, paths []here.Path) error {
pkg, err := mem.New(disk.Here)
if err != nil {
return err
}
for _, pt := range paths {
err = func() error {
f, err := disk.Open(pt.String())
if err != nil {
return err
}
defer f.Close()
if err := pkg.Add(f); err != nil {
return err
}
return nil
}()
if err != nil {
return err
}
}
b, err := pkg.MarshalEmbed()
if err != nil {
return err
}
_, err = w.Write(b)
return err
}
// Abs returns an absolute representation of path. If the path is not absolute it will be joined with the current working directory to turn it into an absolute path. The absolute path name for a given file is not guaranteed to be unique. Abs calls Clean on the result.
func (f *Pkger) Abs(p string) (string, error) {
pt, err := f.Parse(p)

46
pkging/stuffing/stuffing.go
View File

@ -1,46 +0,0 @@
package stuffing
import (
"io"
"github.com/markbates/pkger/here"
"github.com/markbates/pkger/pkging/mem"
"github.com/markbates/pkger/pkging/stdos"
)
func Stuff(w io.Writer, cur here.Info, paths []here.Path) error {
disk, err := stdos.New(cur)
if err != nil {
return err
}
pkg, err := mem.New(cur)
if err != nil {
return err
}
for _, pt := range paths {
err = func() error {
f, err := disk.Open(pt.String())
if err != nil {
return err
}
defer f.Close()
if err := pkg.Add(f); err != nil {
return err
}
return nil
}()
if err != nil {
return err
}
}
b, err := pkg.MarshalEmbed()
if err != nil {
return err
}
_, err = w.Write(b)
return err
}