Initial Commit

Author: markbates

.codeclimate.yml

@@ -0,0 +1,20 @@
+---
+engines:
+  golint:
+    enabled: true
+    checks:
+      GoLint/Naming/MixedCaps:
+        enabled: false
+  govet:
+    enabled: true
+  gofmt:
+    enabled: true
+  fixme:
+    enabled: true
+ratings:
+  paths:
+    - "**.go"
+exclude_paths:
+  - "**/*_test.go"
+  - "*_test.go"
+  - "fixtures/"

.gitignore

@@ -0,0 +1,28 @@
+*.log
+.DS_Store
+doc
+tmp
+pkg
+*.gem
+*.pid
+coverage
+coverage.data
+build/*
+*.pbxuser
+*.mode1v3
+.svn
+profile
+.console_history
+.sass-cache/*
+.rake_tasks~
+*.log.lck
+solr/
+.jhw-cache/
+jhw.*
+*.sublime*
+node_modules/
+dist/
+generated/
+.vendor/
+bin/*
+gin-bin

.travis.yml

@@ -0,0 +1,12 @@
+language: go
+
+sudo: false
+
+go:
+  - 1.7
+  - 1.8
+  - tip
+
+matrix:
+  allow_failures:
+    - go: 'tip'

LICENSE.txt

@@ -0,0 +1,8 @@
+The MIT License (MIT)
+Copyright (c) 2016 Mark Bates
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

README.md

@@ -0,0 +1 @@
+# packr

box.go

@@ -0,0 +1,55 @@
+package packr
+
+import (
+	"io/ioutil"
+	"path/filepath"
+	"runtime"
+)
+
+// NewBox returns a Box that can be used to
+// retrieve files from either disk or the embedded
+// binary.
+func NewBox(path string) Box {
+	_, filename, _, _ := runtime.Caller(1)
+	return Box{
+		Path:       path,
+		callingDir: filepath.Dir(filename),
+	}
+}
+
+// Box represent a folder on a disk you want to
+// have access to in the built Go binary.
+type Box struct {
+	Path       string
+	callingDir string
+	data       map[string][]byte
+}
+
+// String of the file asked for or an empty string.
+func (b Box) String(name string) string {
+	return string(b.Bytes(name))
+}
+
+// MustString returns either the string of the requested
+// file or an error if it can not be found.
+func (b Box) MustString(name string) (string, error) {
+	bb, err := b.MustBytes(name)
+	return string(bb), err
+}
+
+// Bytes of the file asked for or an empty byte slice.
+func (b Box) Bytes(name string) []byte {
+	bb, _ := b.MustBytes(name)
+	return bb
+}
+
+// MustBytes returns either the byte slice of the requested
+// file or an error if it can not be found.
+func (b Box) MustBytes(name string) ([]byte, error) {
+	bb, err := find(b.Path, name)
+	if err == nil {
+		return bb, err
+	}
+	p := filepath.Join(b.callingDir, b.Path, name)
+	return ioutil.ReadFile(p)
+}

box_test.go

@@ -0,0 +1,31 @@
+package packr
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/require"
+)
+
+func Test_Box_String(t *testing.T) {
+	r := require.New(t)
+	s := testBox.String("hello.txt")
+	r.Equal("hello world!\n", s)
+}
+
+func Test_Box_MustString(t *testing.T) {
+	r := require.New(t)
+	_, err := testBox.MustString("idontexist.txt")
+	r.Error(err)
+}
+
+func Test_Box_Bytes(t *testing.T) {
+	r := require.New(t)
+	s := testBox.Bytes("hello.txt")
+	r.Equal([]byte("hello world!\n"), s)
+}
+
+func Test_Box_MustBytes(t *testing.T) {
+	r := require.New(t)
+	_, err := testBox.MustBytes("idontexist.txt")
+	r.Error(err)
+}

builder/box.go

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+package builder
+
+import (
+	"encoding/json"
+	"io/ioutil"
+	"os"
+	"path/filepath"
+	"strings"
+
+	"github.com/pkg/errors"
+)
+
+type box struct {
+	Name  string
+	Files []file
+}
+
+func (b *box) Walk(root string) error {
+	return filepath.Walk(root, func(path string, info os.FileInfo, err error) error {
+		if info == nil || info.IsDir() {
+			return nil
+		}
+		f := file{
+			Name: strings.Replace(path, root, "", 1),
+		}
+
+		bb, err := ioutil.ReadFile(path)
+		if err != nil {
+			return errors.WithStack(err)
+		}
+		bb, err = json.Marshal(bb)
+		if err != nil {
+			return errors.WithStack(err)
+		}
+		f.Contents = strings.Replace(string(bb), "\"", "\\\"", -1)
+
+		b.Files = append(b.Files, f)
+		return nil
+	})
+}

builder/builder.go

@@ -0,0 +1,129 @@
+package builder
+
+import (
+	"context"
+	"fmt"
+	"io/ioutil"
+	"os"
+	"path/filepath"
+	"regexp"
+	"text/template"
+
+	"github.com/pkg/errors"
+)
+
+var boxPattern = regexp.MustCompile(`packr.NewBox\(["` + "`" + `](.+)["` + "`" + `]\)`)
+var packagePattern = regexp.MustCompile(`package\s+(.+)`)
+var invalidFilePattern = regexp.MustCompile(`(_test|-packr).go$`)
+
+// Builder scans folders/files looking for `packr.NewBox` and then compiling
+// the required static files into `<package-name>-packr.go` files so they can
+// be built into Go binaries.
+type Builder struct {
+	context.Context
+	RootPath string
+	pkgs     map[string]pkg
+}
+
+// Run the builder.
+func (b *Builder) Run() error {
+	err := filepath.Walk(b.RootPath, func(path string, info os.FileInfo, err error) error {
+		base := filepath.Base(path)
+		if base == ".git" || base == "vendor" || base == "node_modules" {
+			return filepath.SkipDir
+		}
+
+		if !info.IsDir() {
+			return b.process(path)
+		}
+		return nil
+	})
+	if err != nil {
+		return errors.WithStack(err)
+	}
+	return b.dump()
+}
+
+func (b *Builder) dump() error {
+	for _, p := range b.pkgs {
+		name := filepath.Join(p.Dir, p.Name+"-packr.go")
+		fmt.Printf("--> packing %s\n", name)
+		f, err := os.Create(name)
+		if err != nil {
+			return errors.WithStack(err)
+		}
+		t, err := template.New("").Parse(tmpl)
+
+		if err != nil {
+			return errors.WithStack(err)
+		}
+		err = t.Execute(f, p)
+		if err != nil {
+			return errors.WithStack(err)
+		}
+	}
+	return nil
+}
+
+func (b *Builder) process(path string) error {
+	ext := filepath.Ext(path)
+	if ext != ".go" || invalidFilePattern.MatchString(path) {
+		return nil
+	}
+
+	bb, err := ioutil.ReadFile(path)
+	if err != nil {
+		return errors.WithStack(err)
+	}
+	fb := string(bb)
+
+	matches := boxPattern.FindAllStringSubmatch(fb, -1)
+	if len(matches) == 0 {
+		return nil
+	}
+
+	pk := pkg{
+		Dir:   filepath.Dir(path),
+		Boxes: []box{},
+	}
+	pname := packagePattern.FindStringSubmatch(fb)
+	pk.Name = pname[1]
+
+	for _, m := range matches {
+		bx := &box{
+			Name:  m[1],
+			Files: []file{},
+		}
+		err = bx.Walk(filepath.Join(pk.Dir, bx.Name))
+		if err != nil {
+			return errors.WithStack(err)
+		}
+		if len(bx.Files) > 0 {
+			pk.Boxes = append(pk.Boxes, *bx)
+		}
+	}
+
+	if len(pk.Boxes) > 0 {
+		b.addPkg(pk)
+	}
+	return nil
+}
+
+func (b *Builder) addPkg(p pkg) {
+	if _, ok := b.pkgs[p.Name]; !ok {
+		b.pkgs[p.Name] = p
+		return
+	}
+	pp := b.pkgs[p.Name]
+	pp.Boxes = append(pp.Boxes, p.Boxes...)
+	b.pkgs[p.Name] = pp
+}
+
+// New Builder with a given context and path
+func New(ctx context.Context, path string) *Builder {
+	return &Builder{
+		Context:  ctx,
+		RootPath: path,
+		pkgs:     map[string]pkg{},
+	}
+}