Golang utils.IsURL函数代码示例

func (b *BuilderJob) CmdBuild(job *engine.Job) engine.Status {
	if len(job.Args) != 0 {
		return job.Errorf("Usage: %s\n", job.Name)
	}
	var (
		remoteURL      = job.Getenv("remote")
		repoName       = job.Getenv("t")
		suppressOutput = job.GetenvBool("q")
		noCache        = job.GetenvBool("nocache")
		rm             = job.GetenvBool("rm")
		forceRm        = job.GetenvBool("forcerm")
		authConfig     = &registry.AuthConfig{}
		configFile     = &registry.ConfigFile{}
		tag            string
		context        io.ReadCloser
	)
	job.GetenvJson("authConfig", authConfig)
	job.GetenvJson("configFile", configFile)

	repoName, tag = parsers.ParseRepositoryTag(repoName)
	if repoName != "" {
		if _, _, err := registry.ResolveRepositoryName(repoName); err != nil {
			return job.Error(err)
		}
		if len(tag) > 0 {
			if err := graph.ValidateTagName(tag); err != nil {
				return job.Error(err)
			}
		}
	}

	if remoteURL == "" {
		context = ioutil.NopCloser(job.Stdin)
	} else if utils.IsGIT(remoteURL) {
		if !utils.ValidGitTransport(remoteURL) {
			remoteURL = "https://" + remoteURL
		}
		root, err := ioutil.TempDir("", "docker-build-git")
		if err != nil {
			return job.Error(err)
		}
		defer os.RemoveAll(root)

		if output, err := exec.Command("git", "clone", "--recursive", remoteURL, root).CombinedOutput(); err != nil {
			return job.Errorf("Error trying to use git: %s (%s)", err, output)
		}

		c, err := archive.Tar(root, archive.Uncompressed)
		if err != nil {
			return job.Error(err)
		}
		context = c
	} else if utils.IsURL(remoteURL) {
		f, err := utils.Download(remoteURL)
		if err != nil {
			return job.Error(err)
		}
		defer f.Body.Close()
		dockerFile, err := ioutil.ReadAll(f.Body)
		if err != nil {
			return job.Error(err)
		}
		c, err := archive.Generate("Dockerfile", string(dockerFile))
		if err != nil {
			return job.Error(err)
		}
		context = c
	}
	defer context.Close()

	sf := utils.NewStreamFormatter(job.GetenvBool("json"))

	builder := &Builder{
		Daemon: b.Daemon,
		Engine: b.Engine,
		OutStream: &utils.StdoutFormater{
			Writer:          job.Stdout,
			StreamFormatter: sf,
		},
		ErrStream: &utils.StderrFormater{
			Writer:          job.Stdout,
			StreamFormatter: sf,
		},
		Verbose:         !suppressOutput,
		UtilizeCache:    !noCache,
		Remove:          rm,
		ForceRemove:     forceRm,
		OutOld:          job.Stdout,
		StreamFormatter: sf,
		AuthConfig:      authConfig,
		AuthConfigFile:  configFile,
	}

	id, err := builder.Run(context)
	if err != nil {
		return job.Error(err)
	}

	if repoName != "" {
		b.Daemon.Repositories().Set(repoName, tag, id, false)
//.........这里部分代码省略.........

func (b *buildFile) runContextCommand(args string, allowRemote bool, allowDecompression bool, cmdName string) error {
	if b.context == nil {
		return fmt.Errorf("No context given. Impossible to use %s", cmdName)
	}
	tmp := strings.SplitN(args, " ", 2)
	if len(tmp) != 2 {
		return fmt.Errorf("Invalid %s format", cmdName)
	}

	orig, err := b.ReplaceEnvMatches(strings.Trim(tmp[0], " \t"))
	if err != nil {
		return err
	}

	dest, err := b.ReplaceEnvMatches(strings.Trim(tmp[1], " \t"))
	if err != nil {
		return err
	}

	cmd := b.config.Cmd
	b.config.Cmd = []string{"/bin/sh", "-c", fmt.Sprintf("#(nop) %s %s in %s", cmdName, orig, dest)}
	defer func(cmd []string) { b.config.Cmd = cmd }(cmd)
	b.config.Image = b.image

	var (
		origPath   = orig
		destPath   = dest
		remoteHash string
		isRemote   bool
		decompress = true
	)

	isRemote = utils.IsURL(orig)
	if isRemote && !allowRemote {
		return fmt.Errorf("Source can't be an URL for %s", cmdName)
	} else if utils.IsURL(orig) {
		// Initiate the download
		resp, err := utils.Download(orig)
		if err != nil {
			return err
		}

		// Create a tmp dir
		tmpDirName, err := ioutil.TempDir(b.contextPath, "docker-remote")
		if err != nil {
			return err
		}

		// Create a tmp file within our tmp dir
		tmpFileName := path.Join(tmpDirName, "tmp")
		tmpFile, err := os.OpenFile(tmpFileName, os.O_RDWR|os.O_CREATE|os.O_EXCL, 0600)
		if err != nil {
			return err
		}
		defer os.RemoveAll(tmpDirName)

		// Download and dump result to tmp file
		if _, err := io.Copy(tmpFile, resp.Body); err != nil {
			tmpFile.Close()
			return err
		}
		tmpFile.Close()

		// Remove the mtime of the newly created tmp file
		if err := system.UtimesNano(tmpFileName, make([]syscall.Timespec, 2)); err != nil {
			return err
		}

		origPath = path.Join(filepath.Base(tmpDirName), filepath.Base(tmpFileName))

		// Process the checksum
		r, err := archive.Tar(tmpFileName, archive.Uncompressed)
		if err != nil {
			return err
		}
		tarSum := &tarsum.TarSum{Reader: r, DisableCompression: true}
		if _, err := io.Copy(ioutil.Discard, tarSum); err != nil {
			return err
		}
		remoteHash = tarSum.Sum(nil)
		r.Close()

		// If the destination is a directory, figure out the filename.
		if strings.HasSuffix(dest, "/") {
			u, err := url.Parse(orig)
			if err != nil {
				return err
			}
			path := u.Path
			if strings.HasSuffix(path, "/") {
				path = path[:len(path)-1]
			}
			parts := strings.Split(path, "/")
			filename := parts[len(parts)-1]
			if filename == "" {
				return fmt.Errorf("cannot determine filename from url: %s", u)
			}
			destPath = dest + filename
		}
	}
//.........这里部分代码省略.........

func calcCopyInfo(b *Builder, cmdName string, cInfos *[]*copyInfo, origPath string, destPath string, allowRemote bool, allowDecompression bool) error {

	if origPath != "" && origPath[0] == '/' && len(origPath) > 1 {
		origPath = origPath[1:]
	}
	origPath = strings.TrimPrefix(origPath, "./")

	// In the remote/URL case, download it and gen its hashcode
	if utils.IsURL(origPath) {
		if !allowRemote {
			return fmt.Errorf("Source can't be a URL for %s", cmdName)
		}

		ci := copyInfo{}
		ci.origPath = origPath
		ci.hash = origPath // default to this but can change
		ci.destPath = destPath
		ci.decompress = false
		*cInfos = append(*cInfos, &ci)

		// Initiate the download
		resp, err := utils.Download(ci.origPath)
		if err != nil {
			return err
		}

		// Create a tmp dir
		tmpDirName, err := ioutil.TempDir(b.contextPath, "docker-remote")
		if err != nil {
			return err
		}
		ci.tmpDir = tmpDirName

		// Create a tmp file within our tmp dir
		tmpFileName := path.Join(tmpDirName, "tmp")
		tmpFile, err := os.OpenFile(tmpFileName, os.O_RDWR|os.O_CREATE|os.O_EXCL, 0600)
		if err != nil {
			return err
		}

		// Download and dump result to tmp file
		if _, err := io.Copy(tmpFile, utils.ProgressReader(resp.Body, int(resp.ContentLength), b.OutOld, b.StreamFormatter, true, "", "Downloading")); err != nil {
			tmpFile.Close()
			return err
		}
		fmt.Fprintf(b.OutStream, "\n")
		tmpFile.Close()

		// Remove the mtime of the newly created tmp file
		if err := system.UtimesNano(tmpFileName, make([]syscall.Timespec, 2)); err != nil {
			return err
		}

		ci.origPath = path.Join(filepath.Base(tmpDirName), filepath.Base(tmpFileName))

		// If the destination is a directory, figure out the filename.
		if strings.HasSuffix(ci.destPath, "/") {
			u, err := url.Parse(origPath)
			if err != nil {
				return err
			}
			path := u.Path
			if strings.HasSuffix(path, "/") {
				path = path[:len(path)-1]
			}
			parts := strings.Split(path, "/")
			filename := parts[len(parts)-1]
			if filename == "" {
				return fmt.Errorf("cannot determine filename from url: %s", u)
			}
			ci.destPath = ci.destPath + filename
		}

		// Calc the checksum, only if we're using the cache
		if b.UtilizeCache {
			r, err := archive.Tar(tmpFileName, archive.Uncompressed)
			if err != nil {
				return err
			}
			tarSum, err := tarsum.NewTarSum(r, true, tarsum.Version0)
			if err != nil {
				return err
			}
			if _, err := io.Copy(ioutil.Discard, tarSum); err != nil {
				return err
			}
			ci.hash = tarSum.Sum(nil)
			r.Close()
		}

		return nil
	}

	// Deal with wildcards
	if ContainsWildcards(origPath) {
		for _, fileInfo := range b.context.GetSums() {
			if fileInfo.Name() == "" {
				continue
			}
			match, _ := path.Match(origPath, fileInfo.Name())
//.........这里部分代码省略.........

func (daemon *Daemon) CmdBuild(job *engine.Job) engine.Status {
	if len(job.Args) != 0 {
		return job.Errorf("Usage: %s\n", job.Name)
	}
	var (
		remoteURL      = job.Getenv("remote")
		repoName       = job.Getenv("t")
		suppressOutput = job.GetenvBool("q")
		noCache        = job.GetenvBool("nocache")
		rm             = job.GetenvBool("rm")
		forceRm        = job.GetenvBool("forcerm")
		authConfig     = &registry.AuthConfig{}
		configFile     = &registry.ConfigFile{}
		tag            string
		context        io.ReadCloser
	)
	job.GetenvJson("authConfig", authConfig)
	job.GetenvJson("configFile", configFile)
	repoName, tag = parsers.ParseRepositoryTag(repoName)

	if remoteURL == "" {
		context = ioutil.NopCloser(job.Stdin)
	} else if utils.IsGIT(remoteURL) {
		if !strings.HasPrefix(remoteURL, "git://") {
			remoteURL = "https://" + remoteURL
		}
		root, err := ioutil.TempDir("", "docker-build-git")
		if err != nil {
			return job.Error(err)
		}
		defer os.RemoveAll(root)

		if output, err := exec.Command("git", "clone", "--recursive", remoteURL, root).CombinedOutput(); err != nil {
			return job.Errorf("Error trying to use git: %s (%s)", err, output)
		}

		c, err := archive.Tar(root, archive.Uncompressed)
		if err != nil {
			return job.Error(err)
		}
		context = c
	} else if utils.IsURL(remoteURL) {
		f, err := utils.Download(remoteURL)
		if err != nil {
			return job.Error(err)
		}
		defer f.Body.Close()
		dockerFile, err := ioutil.ReadAll(f.Body)
		if err != nil {
			return job.Error(err)
		}
		c, err := archive.Generate("Dockerfile", string(dockerFile))
		if err != nil {
			return job.Error(err)
		}
		context = c
	}
	defer context.Close()

	sf := utils.NewStreamFormatter(job.GetenvBool("json"))
	b := NewBuildFile(daemon, daemon.eng,
		&utils.StdoutFormater{
			Writer:          job.Stdout,
			StreamFormatter: sf,
		},
		&utils.StderrFormater{
			Writer:          job.Stdout,
			StreamFormatter: sf,
		},
		!suppressOutput, !noCache, rm, forceRm, job.Stdout, sf, authConfig, configFile)
	id, err := b.Build(context)
	if err != nil {
		return job.Error(err)
	}
	if repoName != "" {
		daemon.Repositories().Set(repoName, tag, id, false)
	}
	return engine.StatusOK
}

func calcCopyInfo(b *Builder, cmdName string, ci *copyInfo, allowRemote bool, allowDecompression bool) error {
	var (
		remoteHash string
		isRemote   bool
	)

	saveOrig := ci.origPath
	isRemote = utils.IsURL(ci.origPath)

	if isRemote && !allowRemote {
		return fmt.Errorf("Source can't be an URL for %s", cmdName)
	} else if isRemote {
		// Initiate the download
		resp, err := utils.Download(ci.origPath)
		if err != nil {
			return err
		}

		// Create a tmp dir
		tmpDirName, err := ioutil.TempDir(b.contextPath, "docker-remote")
		if err != nil {
			return err
		}
		ci.tmpDir = tmpDirName

		// Create a tmp file within our tmp dir
		tmpFileName := path.Join(tmpDirName, "tmp")
		tmpFile, err := os.OpenFile(tmpFileName, os.O_RDWR|os.O_CREATE|os.O_EXCL, 0600)
		if err != nil {
			return err
		}

		// Download and dump result to tmp file
		if _, err := io.Copy(tmpFile, utils.ProgressReader(resp.Body, int(resp.ContentLength), b.OutOld, b.StreamFormatter, true, "", "Downloading")); err != nil {
			tmpFile.Close()
			return err
		}
		fmt.Fprintf(b.OutStream, "\n")
		tmpFile.Close()

		// Remove the mtime of the newly created tmp file
		if err := system.UtimesNano(tmpFileName, make([]syscall.Timespec, 2)); err != nil {
			return err
		}

		ci.origPath = path.Join(filepath.Base(tmpDirName), filepath.Base(tmpFileName))

		// Process the checksum
		r, err := archive.Tar(tmpFileName, archive.Uncompressed)
		if err != nil {
			return err
		}
		tarSum, err := tarsum.NewTarSum(r, true, tarsum.Version0)
		if err != nil {
			return err
		}
		if _, err := io.Copy(ioutil.Discard, tarSum); err != nil {
			return err
		}
		remoteHash = tarSum.Sum(nil)
		r.Close()

		// If the destination is a directory, figure out the filename.
		if strings.HasSuffix(ci.destPath, "/") {
			u, err := url.Parse(saveOrig)
			if err != nil {
				return err
			}
			path := u.Path
			if strings.HasSuffix(path, "/") {
				path = path[:len(path)-1]
			}
			parts := strings.Split(path, "/")
			filename := parts[len(parts)-1]
			if filename == "" {
				return fmt.Errorf("cannot determine filename from url: %s", u)
			}
			ci.destPath = ci.destPath + filename
		}
	}

	if err := b.checkPathForAddition(ci.origPath); err != nil {
		return err
	}

	// Hash path and check the cache
	if b.UtilizeCache {
		var (
			sums = b.context.GetSums()
		)

		if remoteHash != "" {
			ci.hashPath = remoteHash
		} else if fi, err := os.Stat(path.Join(b.contextPath, ci.origPath)); err != nil {
			return err
		} else if fi.IsDir() {
			var subfiles []string
			for _, fileInfo := range sums {
				absFile := path.Join(b.contextPath, fileInfo.Name())
				absOrigPath := path.Join(b.contextPath, ci.origPath)
//.........这里部分代码省略.........