diff options
Diffstat (limited to 'vendor/github.com/GeertJohan/go.rice/rice/embed-go.go')
-rw-r--r-- | vendor/github.com/GeertJohan/go.rice/rice/embed-go.go | 158 |
1 files changed, 158 insertions, 0 deletions
diff --git a/vendor/github.com/GeertJohan/go.rice/rice/embed-go.go b/vendor/github.com/GeertJohan/go.rice/rice/embed-go.go new file mode 100644 index 00000000..c5a0e9e8 --- /dev/null +++ b/vendor/github.com/GeertJohan/go.rice/rice/embed-go.go @@ -0,0 +1,158 @@ +package main + +import ( + "bytes" + "fmt" + "go/build" + "go/format" + "io" + "io/ioutil" + "log" + "os" + "path/filepath" + "strings" +) + +const boxFilename = "rice-box.go" + +func operationEmbedGo(pkg *build.Package) { + + boxMap := findBoxes(pkg) + + // notify user when no calls to rice.FindBox are made (is this an error and therefore os.Exit(1) ? + if len(boxMap) == 0 { + fmt.Println("no calls to rice.FindBox() found") + return + } + + verbosef("\n") + var boxes []*boxDataType + + for boxname := range boxMap { + // find path and filename for this box + boxPath := filepath.Join(pkg.Dir, boxname) + + // Check to see if the path for the box is a symbolic link. If so, simply + // box what the symbolic link points to. Note: the filepath.Walk function + // will NOT follow any nested symbolic links. This only handles the case + // where the root of the box is a symbolic link. + symPath, serr := os.Readlink(boxPath) + if serr == nil { + boxPath = symPath + } + + // verbose info + verbosef("embedding box '%s' to '%s'\n", boxname, boxFilename) + + // read box metadata + boxInfo, ierr := os.Stat(boxPath) + if ierr != nil { + fmt.Printf("Error: unable to access box at %s\n", boxPath) + os.Exit(1) + } + + // create box datastructure (used by template) + box := &boxDataType{ + BoxName: boxname, + UnixNow: boxInfo.ModTime().Unix(), + Files: make([]*fileDataType, 0), + Dirs: make(map[string]*dirDataType), + } + + if !boxInfo.IsDir() { + fmt.Printf("Error: Box %s must point to a directory but points to %s instead\n", + boxname, boxPath) + os.Exit(1) + } + + // fill box datastructure with file data + filepath.Walk(boxPath, func(path string, info os.FileInfo, err error) error { + if err != nil { + fmt.Printf("error walking box: %s\n", err) + os.Exit(1) + } + + filename := strings.TrimPrefix(path, boxPath) + filename = strings.Replace(filename, "\\", "/", -1) + filename = strings.TrimPrefix(filename, "/") + if info.IsDir() { + dirData := &dirDataType{ + Identifier: "dir" + nextIdentifier(), + FileName: filename, + ModTime: info.ModTime().Unix(), + ChildFiles: make([]*fileDataType, 0), + ChildDirs: make([]*dirDataType, 0), + } + verbosef("\tincludes dir: '%s'\n", dirData.FileName) + box.Dirs[dirData.FileName] = dirData + + // add tree entry (skip for root, it'll create a recursion) + if dirData.FileName != "" { + pathParts := strings.Split(dirData.FileName, "/") + parentDir := box.Dirs[strings.Join(pathParts[:len(pathParts)-1], "/")] + parentDir.ChildDirs = append(parentDir.ChildDirs, dirData) + } + } else { + fileData := &fileDataType{ + Identifier: "file" + nextIdentifier(), + FileName: filename, + ModTime: info.ModTime().Unix(), + } + verbosef("\tincludes file: '%s'\n", fileData.FileName) + fileData.Content, err = ioutil.ReadFile(path) + if err != nil { + fmt.Printf("error reading file content while walking box: %s\n", err) + os.Exit(1) + } + box.Files = append(box.Files, fileData) + + // add tree entry + pathParts := strings.Split(fileData.FileName, "/") + parentDir := box.Dirs[strings.Join(pathParts[:len(pathParts)-1], "/")] + if parentDir == nil { + fmt.Printf("Error: parent of %s is not within the box\n", path) + os.Exit(1) + } + parentDir.ChildFiles = append(parentDir.ChildFiles, fileData) + } + return nil + }) + boxes = append(boxes, box) + + } + + embedSourceUnformated := bytes.NewBuffer(make([]byte, 0)) + + // execute template to buffer + err := tmplEmbeddedBox.Execute( + embedSourceUnformated, + embedFileDataType{pkg.Name, boxes}, + ) + if err != nil { + log.Printf("error writing embedded box to file (template execute): %s\n", err) + os.Exit(1) + } + + // format the source code + embedSource, err := format.Source(embedSourceUnformated.Bytes()) + if err != nil { + log.Printf("error formatting embedSource: %s\n", err) + os.Exit(1) + } + + // create go file for box + boxFile, err := os.Create(filepath.Join(pkg.Dir, boxFilename)) + if err != nil { + log.Printf("error creating embedded box file: %s\n", err) + os.Exit(1) + } + defer boxFile.Close() + + // write source to file + _, err = io.Copy(boxFile, bytes.NewBuffer(embedSource)) + if err != nil { + log.Printf("error writing embedSource to file: %s\n", err) + os.Exit(1) + } + +} |