// List lists all of the dependencies of the current project.
//
// Params:
//  - dir (string): basedir
//  - deep (bool): whether to do a deep scan or a shallow scan
//  - format (string): The format to output (text, json, json-pretty)
func List(basedir string, deep bool, format string) {
	basedir, err := filepath.Abs(basedir)
	if err != nil {
		msg.Die("Could not read directory: %s", err)
	}

	r, err := dependency.NewResolver(basedir)
	if err != nil {
		msg.Die("Could not create a resolver: %s", err)
	}
	h := &dependency.DefaultMissingPackageHandler{Missing: []string{}, Gopath: []string{}, Prefix: "vendor"}
	r.Handler = h

	localPkgs, _, err := r.ResolveLocal(deep)
	if err != nil {
		msg.Die("Error listing dependencies: %s", err)
	}
	sort.Strings(localPkgs)
	installed := make([]string, len(localPkgs))
	for i, pkg := range localPkgs {
		relPkg, err := filepath.Rel(basedir, pkg)
		if err != nil {
			// msg.Warn("Failed to Rel path: %s", err)
			relPkg = pkg
		}
		installed[i] = relPkg
	}
	l := PackageList{
		Installed: installed,
		Missing:   h.Missing,
		Gopath:    h.Gopath,
	}

	outputList(l, format)
}

func (i *Installer) List(conf *cfg.Config) []*cfg.Dependency {
	base := "."
	vpath := i.VendorPath()

	ic := newImportCache()

	v := &VersionHandler{
		Destination: vpath,
		Use:         ic,
		Imported:    make(map[string]bool),
		Conflicts:   make(map[string]bool),
		Config:      conf,
	}

	// Update imports
	res, err := dependency.NewResolver(base)
	if err != nil {
		msg.Die("Failed to create a resolver: %s", err)
	}
	res.Config = conf
	res.VersionHandler = v

	msg.Info("Resolving imports")
	_, err = allPackages(conf.Imports, res)
	if err != nil {
		msg.Die("Failed to retrieve a list of dependencies: %s", err)
	}

	msg.Warn("devImports not resolved.")

	return conf.Imports
}

// Update updates all dependencies.
//
// It begins with the dependencies in the config file, but also resolves
// transitive dependencies. The returned lockfile has all of the dependencies
// listed, but the version reconciliation has not been done.
//
// In other words, all versions in the Lockfile will be empty.
func (i *Installer) Update(conf *cfg.Config) error {
	base := "."
	vpath := i.VendorPath()

	ic := newImportCache()

	m := &MissingPackageHandler{
		destination: vpath,

		cache:          i.UseCache,
		cacheGopath:    i.UseCacheGopath,
		useGopath:      i.UseGopath,
		home:           i.Home,
		force:          i.Force,
		updateVendored: i.UpdateVendored,
		Config:         conf,
		Use:            ic,
		updated:        i.Updated,
	}

	v := &VersionHandler{
		Destination: vpath,
		Use:         ic,
		Imported:    make(map[string]bool),
		Conflicts:   make(map[string]bool),
		Config:      conf,
	}

	// Update imports
	res, err := dependency.NewResolver(base)
	if err != nil {
		msg.Die("Failed to create a resolver: %s", err)
	}
	res.Config = conf
	res.Handler = m
	res.VersionHandler = v
	res.ResolveAllFiles = i.ResolveAllFiles
	msg.Info("Resolving imports")
	_, err = allPackages(conf.Imports, res)
	if err != nil {
		msg.Die("Failed to retrieve a list of dependencies: %s", err)
	}

	if len(conf.DevImports) > 0 {
		msg.Warn("dev imports not resolved.")
	}

	err = ConcurrentUpdate(conf.Imports, vpath, i, conf)

	return err
}

// ListDeps lists all of the dependencies of the current project.
//
// Params:
//  - dir (string): basedir
//  - deep (bool): whether to do a deep scan or a shallow scan
//
// Returns:
//
func ListDeps(c cookoo.Context, p *cookoo.Params) (interface{}, cookoo.Interrupt) {
	basedir := p.Get("dir", ".").(string)
	deep := p.Get("deep", true).(bool)

	basedir, err := filepath.Abs(basedir)
	if err != nil {
		return nil, err
	}

	r, err := dependency.NewResolver(basedir)
	if err != nil {
		return nil, err
	}
	h := &dependency.DefaultMissingPackageHandler{Missing: []string{}, Gopath: []string{}}
	r.Handler = h

	sortable, err := r.ResolveLocal(deep)
	if err != nil {
		return nil, err
	}

	sort.Strings(sortable)

	fmt.Println("INSTALLED packages:")
	for _, k := range sortable {
		v, err := filepath.Rel(basedir, k)
		if err != nil {
			msg.Warn("Failed to Rel path: %s", err)
			v = k
		}
		fmt.Printf("\t%s\n", v)
	}

	if len(h.Missing) > 0 {
		fmt.Println("\nMISSING packages:")
		for _, pkg := range h.Missing {
			fmt.Printf("\t%s\n", pkg)
		}
	}
	if len(h.Gopath) > 0 {
		fmt.Println("\nGOPATH packages:")
		for _, pkg := range h.Gopath {
			fmt.Printf("\t%s\n", pkg)
		}
	}

	return nil, nil
}

// List lists all of the dependencies of the current project.
//
// Params:
//  - dir (string): basedir
//  - deep (bool): whether to do a deep scan or a shallow scan
func List(basedir string, deep bool) {

	basedir, err := filepath.Abs(basedir)
	if err != nil {
		msg.Die("Could not read directory: %s", err)
	}

	r, err := dependency.NewResolver(basedir)
	if err != nil {
		msg.Die("Could not create a resolver: %s", err)
	}
	h := &dependency.DefaultMissingPackageHandler{Missing: []string{}, Gopath: []string{}}
	r.Handler = h

	sortable, err := r.ResolveLocal(deep)
	if err != nil {
		msg.Die("Error listing dependencies: %s", err)
	}

	msg.Info("Sorting...")
	sort.Strings(sortable)

	msg.Puts("INSTALLED packages:")
	for _, k := range sortable {
		v, err := filepath.Rel(basedir, k)
		if err != nil {
			//msg.Warn("Failed to Rel path: %s", err)
			v = k
		}
		msg.Puts("\t%s", v)
	}

	if len(h.Missing) > 0 {
		msg.Puts("\nMISSING packages:")
		for _, pkg := range h.Missing {
			msg.Puts("\t%s", pkg)
		}
	}
	if len(h.Gopath) > 0 {
		msg.Puts("\nGOPATH packages:")
		for _, pkg := range h.Gopath {
			msg.Puts("\t%s", pkg)
		}
	}
}

// List resolves the complete dependency tree and returns a list of dependencies.
func (i *Installer) List(conf *cfg.Config) []*cfg.Dependency {
	base := "."

	ic := newImportCache()

	v := &VersionHandler{
		Use:       ic,
		Imported:  make(map[string]bool),
		Conflicts: make(map[string]bool),
		Config:    conf,
	}

	// Update imports
	res, err := dependency.NewResolver(base)
	if err != nil {
		msg.Die("Failed to create a resolver: %s", err)
	}
	res.Config = conf
	res.VersionHandler = v
	res.ResolveAllFiles = i.ResolveAllFiles

	msg.Info("Resolving imports")
	_, _, err = res.ResolveLocal(false)
	if err != nil {
		msg.Die("Failed to resolve local packages: %s", err)
	}

	_, err = allPackages(conf.Imports, res, false)
	if err != nil {
		msg.Die("Failed to retrieve a list of dependencies: %s", err)
	}

	if len(conf.DevImports) > 0 {
		msg.Warn("dev imports not resolved.")
	}

	return conf.Imports
}

// guessDeps attempts to resolve all of the dependencies for a given project.
//
// base is the directory to start with.
// skipImport will skip running the automatic imports.
//
// FIXME: This function is likely a one-off that has a more standard alternative.
// It's also long and could use a refactor.
func guessDeps(base string, skipImport bool) *cfg.Config {
	buildContext, err := util.GetBuildContext()
	if err != nil {
		msg.Die("Failed to build an import context: %s", err)
	}
	name := buildContext.PackageName(base)

	msg.Info("Generating a YAML configuration file and guessing the dependencies")

	config := new(cfg.Config)

	// Get the name of the top level package
	config.Name = name

	// Import by looking at other package managers and looking over the
	// entire directory structure.

	// Attempt to import from other package managers.
	if !skipImport {
		guessImportDeps(base, config)
	}

	importLen := len(config.Imports)
	if importLen == 0 {
		msg.Info("Scanning code to look for dependencies")
	} else {
		msg.Info("Scanning code to look for dependencies not found in import")
	}

	// Resolve dependencies by looking at the tree.
	r, err := dependency.NewResolver(base)
	if err != nil {
		msg.Die("Error creating a dependency resolver: %s", err)
	}

	h := &dependency.DefaultMissingPackageHandler{Missing: []string{}, Gopath: []string{}}
	r.Handler = h

	sortable, err := r.ResolveLocal(false)
	if err != nil {
		msg.Die("Error resolving local dependencies: %s", err)
	}

	sort.Strings(sortable)

	vpath := r.VendorDir
	if !strings.HasSuffix(vpath, "/") {
		vpath = vpath + string(os.PathSeparator)
	}

	for _, pa := range sortable {
		n := strings.TrimPrefix(pa, vpath)
		root, subpkg := util.NormalizeName(n)

		if !config.HasDependency(root) && root != config.Name {
			msg.Info("--> Found reference to %s\n", n)
			d := &cfg.Dependency{
				Name: root,
			}
			if len(subpkg) > 0 {
				d.Subpackages = []string{subpkg}
			}
			config.Imports = append(config.Imports, d)
		} else if config.HasDependency(root) {
			if len(subpkg) > 0 {
				subpkg = strings.TrimPrefix(subpkg, "/")
				d := config.Imports.Get(root)
				if !d.HasSubpackage(subpkg) {
					msg.Info("--> Adding sub-package %s to %s\n", subpkg, root)
					d.Subpackages = append(d.Subpackages, subpkg)
				}
			}
		}
	}

	if len(config.Imports) == importLen && importLen != 0 {
		msg.Info("--> Code scanning found no additional imports")
	}

	return config
}

// Update updates all dependencies.
//
// It begins with the dependencies in the config file, but also resolves
// transitive dependencies. The returned lockfile has all of the dependencies
// listed, but the version reconciliation has not been done.
//
// In other words, all versions in the Lockfile will be empty.
func (i *Installer) Update(conf *cfg.Config) error {
	base := "."

	ic := newImportCache()

	m := &MissingPackageHandler{
		home:    i.Home,
		force:   i.Force,
		Config:  conf,
		Use:     ic,
		updated: i.Updated,
	}

	v := &VersionHandler{
		Use:       ic,
		Imported:  make(map[string]bool),
		Conflicts: make(map[string]bool),
		Config:    conf,
	}

	// Update imports
	res, err := dependency.NewResolver(base)
	res.ResolveTest = i.ResolveTest
	if err != nil {
		msg.Die("Failed to create a resolver: %s", err)
	}
	res.Config = conf
	res.Handler = m
	res.VersionHandler = v
	res.ResolveAllFiles = i.ResolveAllFiles
	msg.Info("Resolving imports")

	imps, timps, err := res.ResolveLocal(false)
	if err != nil {
		msg.Die("Failed to resolve local packages: %s", err)
	}
	var deps cfg.Dependencies
	var tdeps cfg.Dependencies
	for _, v := range imps {
		n := res.Stripv(v)
		if conf.HasIgnore(n) {
			continue
		}
		rt, sub := util.NormalizeName(n)
		if sub == "" {
			sub = "."
		}
		d := deps.Get(rt)
		if d == nil {
			nd := &cfg.Dependency{
				Name:        rt,
				Subpackages: []string{sub},
			}
			deps = append(deps, nd)
		} else if !d.HasSubpackage(sub) {
			d.Subpackages = append(d.Subpackages, sub)
		}
	}
	if i.ResolveTest {
		for _, v := range timps {
			n := res.Stripv(v)
			if conf.HasIgnore(n) {
				continue
			}
			rt, sub := util.NormalizeName(n)
			if sub == "" {
				sub = "."
			}
			d := deps.Get(rt)
			if d == nil {
				d = tdeps.Get(rt)
			}
			if d == nil {
				nd := &cfg.Dependency{
					Name:        rt,
					Subpackages: []string{sub},
				}
				tdeps = append(tdeps, nd)
			} else if !d.HasSubpackage(sub) {
				d.Subpackages = append(d.Subpackages, sub)
			}
		}
	}

	_, err = allPackages(deps, res, false)
	if err != nil {
		msg.Die("Failed to retrieve a list of dependencies: %s", err)
	}

	if i.ResolveTest {
		msg.Debug("Resolving test dependencies")
		_, err = allPackages(tdeps, res, true)
		if err != nil {
//.........这里部分代码省略.........

// guessDeps attempts to resolve all of the dependencies for a given project.
//
// base is the directory to start with.
// skipImport will skip running the automatic imports.
//
// FIXME: This function is likely a one-off that has a more standard alternative.
// It's also long and could use a refactor.
func guessDeps(base string, skipImport bool) *cfg.Config {
	buildContext, err := util.GetBuildContext()
	if err != nil {
		msg.Die("Failed to build an import context: %s", err)
	}
	name := buildContext.PackageName(base)

	msg.Info("Generating a YAML configuration file and guessing the dependencies")

	config := new(cfg.Config)

	// Get the name of the top level package
	config.Name = name

	// Import by looking at other package managers and looking over the
	// entire directory structure.

	// Attempt to import from other package managers.
	if !skipImport {
		msg.Info("Attempting to import from other package managers (use --skip-import to skip)")
		deps := []*cfg.Dependency{}
		absBase, err := filepath.Abs(base)
		if err != nil {
			msg.Die("Failed to resolve location of %s: %s", base, err)
		}

		if d, ok := guessImportGodep(absBase); ok {
			msg.Info("Importing Godep configuration")
			msg.Warn("Godep uses commit id versions. Consider using Semantic Versions with Glide")
			deps = d
		} else if d, ok := guessImportGPM(absBase); ok {
			msg.Info("Importing GPM configuration")
			deps = d
		} else if d, ok := guessImportGB(absBase); ok {
			msg.Info("Importing GB configuration")
			deps = d
		}

		for _, i := range deps {
			msg.Info("Found imported reference to %s\n", i.Name)
			config.Imports = append(config.Imports, i)
		}
	}

	// Resolve dependencies by looking at the tree.
	r, err := dependency.NewResolver(base)
	if err != nil {
		msg.Die("Error creating a dependency resolver: %s", err)
	}

	h := &dependency.DefaultMissingPackageHandler{Missing: []string{}, Gopath: []string{}}
	r.Handler = h

	sortable, err := r.ResolveLocal(false)
	if err != nil {
		msg.Die("Error resolving local dependencies: %s", err)
	}

	sort.Strings(sortable)

	vpath := r.VendorDir
	if !strings.HasSuffix(vpath, "/") {
		vpath = vpath + string(os.PathSeparator)
	}

	for _, pa := range sortable {
		n := strings.TrimPrefix(pa, vpath)
		root, subpkg := util.NormalizeName(n)

		if !config.HasDependency(root) {
			msg.Info("Found reference to %s\n", n)
			d := &cfg.Dependency{
				Name: root,
			}
			if len(subpkg) > 0 {
				d.Subpackages = []string{subpkg}
			}
			config.Imports = append(config.Imports, d)
		} else {
			if len(subpkg) > 0 {
				subpkg = strings.TrimPrefix(subpkg, "/")
				d := config.Imports.Get(root)
				if !d.HasSubpackage(subpkg) {
					msg.Info("Adding sub-package %s to %s\n", subpkg, root)
					d.Subpackages = append(d.Subpackages, subpkg)
				}
			}
		}
	}

	return config
}

// GuessDeps tries to get the dependencies for the current directory.
//
// Params
//  - dirname (string): Directory to use as the base. Default: "."
//  - skipImport (book): Whether to skip importing from Godep, GPM, and gb
func GuessDeps(c cookoo.Context, p *cookoo.Params) (interface{}, cookoo.Interrupt) {
	buildContext, err := util.GetBuildContext()
	if err != nil {
		return nil, err
	}
	base := p.Get("dirname", ".").(string)
	skipImport := p.Get("skipImport", false).(bool)
	name := guessPackageName(buildContext, base)

	Info("Generating a YAML configuration file and guessing the dependencies")

	config := new(cfg.Config)

	// Get the name of the top level package
	config.Name = name

	// Import by looking at other package managers and looking over the
	// entire directory structure.

	// Attempt to import from other package managers.
	if !skipImport {
		Info("Attempting to import from other package managers (use --skip-import to skip)")
		deps := []*cfg.Dependency{}
		absBase, err := filepath.Abs(base)
		if err != nil {
			return nil, err
		}

		if d, ok := guessImportGodep(absBase); ok {
			Info("Importing Godep configuration")
			Warn("Godep uses commit id versions. Consider using Semantic Versions with Glide")
			deps = d
		} else if d, ok := guessImportGPM(absBase); ok {
			Info("Importing GPM configuration")
			deps = d
		} else if d, ok := guessImportGB(absBase); ok {
			Info("Importing GB configuration")
			deps = d
		}

		for _, i := range deps {
			Info("Found imported reference to %s\n", i.Name)
			config.Imports = append(config.Imports, i)
		}
	}

	// Resolve dependencies by looking at the tree.
	r, err := dependency.NewResolver(base)
	if err != nil {
		return nil, err
	}

	h := &dependency.DefaultMissingPackageHandler{Missing: []string{}, Gopath: []string{}}
	r.Handler = h

	sortable, err := r.ResolveLocal(false)
	if err != nil {
		return nil, err
	}

	sort.Strings(sortable)

	vpath := r.VendorDir
	if !strings.HasSuffix(vpath, "/") {
		vpath = vpath + string(os.PathSeparator)
	}

	for _, pa := range sortable {
		n := strings.TrimPrefix(pa, vpath)
		root := util.GetRootFromPackage(n)

		if !config.HasDependency(root) {
			Info("Found reference to %s\n", n)
			d := &cfg.Dependency{
				Name: root,
			}
			subpkg := strings.TrimPrefix(n, root)
			if len(subpkg) > 0 && subpkg != "/" {
				d.Subpackages = []string{subpkg}
			}
			config.Imports = append(config.Imports, d)
		} else {
			subpkg := strings.TrimPrefix(n, root)
			if len(subpkg) > 0 && subpkg != "/" {
				subpkg = strings.TrimPrefix(subpkg, "/")
				d := config.Imports.Get(root)
				f := false
				for _, v := range d.Subpackages {
					if v == subpkg {
						f = true
					}
				}
				if !f {
					Info("Adding sub-package %s to %s\n", subpkg, root)
					d.Subpackages = append(d.Subpackages, subpkg)
//.........这里部分代码省略.........