Initial commit

vendor/github.com/gobuffalo/buffalo-plugins/plugins/cache.go

@@ -0,0 +1,96 @@
+package plugins
+
+import (
+	"crypto/sha256"
+	"encoding/json"
+	"fmt"
+	"io"
+	"os"
+	"os/user"
+	"path/filepath"
+	"sync"
+
+	"github.com/gobuffalo/envy"
+)
+
+type cachedPlugin struct {
+	Commands Commands `json:"commands"`
+	CheckSum string   `json:"check_sum"`
+}
+
+type cachedPlugins map[string]cachedPlugin
+
+var cachePath = func() string {
+	home := "."
+	if usr, err := user.Current(); err == nil {
+		home = usr.HomeDir
+	}
+	return filepath.Join(home, ".buffalo", "plugin.cache")
+}()
+
+var cacheMoot sync.RWMutex
+
+var cacheOn = envy.Get("BUFFALO_PLUGIN_CACHE", "on")
+
+var cache = func() cachedPlugins {
+	m := cachedPlugins{}
+	if cacheOn != "on" {
+		return m
+	}
+	f, err := os.Open(cachePath)
+	if err != nil {
+		return m
+	}
+	defer f.Close()
+	if err := json.NewDecoder(f).Decode(&m); err != nil {
+		f.Close()
+		os.Remove(f.Name())
+	}
+	return m
+}()
+
+func findInCache(path string) (cachedPlugin, bool) {
+	cacheMoot.RLock()
+	defer cacheMoot.RUnlock()
+	cp, ok := cache[path]
+	return cp, ok
+}
+
+func saveCache() error {
+	if cacheOn != "on" {
+		return nil
+	}
+	cacheMoot.Lock()
+	defer cacheMoot.Unlock()
+	os.MkdirAll(filepath.Dir(cachePath), 0744)
+	f, err := os.Create(cachePath)
+	if err != nil {
+		return err
+	}
+	return json.NewEncoder(f).Encode(cache)
+}
+
+func sum(path string) string {
+	f, err := os.Open(path)
+	if err != nil {
+		return ""
+	}
+	defer f.Close()
+	hash := sha256.New()
+	if _, err := io.Copy(hash, f); err != nil {
+		return ""
+	}
+	sum := hash.Sum(nil)
+
+	s := fmt.Sprintf("%x", sum)
+	return s
+}
+
+func addToCache(path string, cp cachedPlugin) {
+	if cp.CheckSum == "" {
+		cp.CheckSum = sum(path)
+	}
+	cacheMoot.Lock()
+	defer cacheMoot.Unlock()
+	cache[path] = cp
+}

vendor/github.com/gobuffalo/buffalo-plugins/plugins/command.go

@@ -0,0 +1,19 @@
+package plugins
+
+// Command that the plugin supplies
+type Command struct {
+	// Name "foo"
+	Name string `json:"name"`
+	// UseCommand "bar"
+	UseCommand string `json:"use_command"`
+	// BuffaloCommand "generate"
+	BuffaloCommand string `json:"buffalo_command"`
+	// Description "generates a foo"
+	Description string   `json:"description,omitempty"`
+	Aliases     []string `json:"aliases,omitempty"`
+	Binary      string   `json:"-"`
+	Flags       []string `json:"flags,omitempty"`
+}
+
+// Commands is a slice of Command
+type Commands []Command

vendor/github.com/gobuffalo/buffalo-plugins/plugins/decorate.go

@@ -0,0 +1,98 @@
+package plugins
+
+import (
+	"fmt"
+	"os"
+	"os/exec"
+	"path/filepath"
+	"runtime"
+	"strings"
+
+	"github.com/gobuffalo/envy"
+	"github.com/pkg/errors"
+	"github.com/spf13/cobra"
+)
+
+// ErrPlugMissing ...
+var ErrPlugMissing = errors.New("plugin missing")
+
+func Decorate(c Command) *cobra.Command {
+	var flags []string
+	if len(c.Flags) > 0 {
+		for _, f := range c.Flags {
+			flags = append(flags, f)
+		}
+	}
+	cc := &cobra.Command{
+		Use:     c.Name,
+		Short:   fmt.Sprintf("[PLUGIN] %s", c.Description),
+		Aliases: c.Aliases,
+		RunE: func(cmd *cobra.Command, args []string) error {
+			plugCmd := c.Name
+			if c.UseCommand != "" {
+				plugCmd = c.UseCommand
+			}
+
+			ax := []string{plugCmd}
+			if plugCmd == "-" {
+				ax = []string{}
+			}
+
+			ax = append(ax, args...)
+			ax = append(ax, flags...)
+
+			bin, err := LookPath(c.Binary)
+			if err != nil {
+				return errors.WithStack(err)
+			}
+
+			ex := exec.Command(bin, ax...)
+			if runtime.GOOS != "windows" {
+				ex.Env = append(envy.Environ(), "BUFFALO_PLUGIN=1")
+			}
+			ex.Stdin = os.Stdin
+			ex.Stdout = os.Stdout
+			ex.Stderr = os.Stderr
+			return log(strings.Join(ex.Args, " "), ex.Run)
+		},
+	}
+	cc.DisableFlagParsing = true
+	return cc
+}
+
+// LookPath ...
+func LookPath(s string) (string, error) {
+	if _, err := os.Stat(s); err == nil {
+		return s, nil
+	}
+
+	if lp, err := exec.LookPath(s); err == nil {
+		return lp, err
+	}
+
+	var bin string
+	pwd, err := os.Getwd()
+	if err != nil {
+		return "", errors.WithStack(err)
+	}
+
+	var looks []string
+	if from, err := envy.MustGet("BUFFALO_PLUGIN_PATH"); err == nil {
+		looks = append(looks, from)
+	} else {
+		looks = []string{filepath.Join(pwd, "plugins"), filepath.Join(envy.GoPath(), "bin"), envy.Get("PATH", "")}
+	}
+
+	for _, p := range looks {
+		lp := filepath.Join(p, s)
+		if lp, err = filepath.EvalSymlinks(lp); err == nil {
+			bin = lp
+			break
+		}
+	}
+
+	if len(bin) == 0 {
+		return "", errors.Wrapf(ErrPlugMissing, "could not find %s in %q", s, looks)
+	}
+	return bin, nil
+}

vendor/github.com/gobuffalo/buffalo-plugins/plugins/events.go

@@ -0,0 +1,7 @@
+package plugins
+
+const (
+	EvtSetupStarted  = "buffalo-plugins:setup:started"
+	EvtSetupErr      = "buffalo-plugins:setup:err"
+	EvtSetupFinished = "buffalo-plugins:setup:finished"
+)

vendor/github.com/gobuffalo/buffalo-plugins/plugins/log.go

@@ -0,0 +1,7 @@
+//+build !debug
+
+package plugins
+
+func log(_ string, fn func() error) error {
+	return fn()
+}

vendor/github.com/gobuffalo/buffalo-plugins/plugins/log_debug.go

@@ -0,0 +1,14 @@
+//+build debug
+
+package plugins
+
+import (
+	"fmt"
+	"time"
+)
+
+func log(name string, fn func() error) error {
+	start := time.Now()
+	defer fmt.Println(name, time.Now().Sub(start))
+	return fn()
+}

vendor/github.com/gobuffalo/buffalo-plugins/plugins/plugdeps/command.go

@@ -0,0 +1,16 @@
+package plugdeps
+
+import "encoding/json"
+
+// Command is the plugin command you want to control further
+type Command struct {
+	Name     string    `toml:"name" json:"name"`
+	Flags    []string  `toml:"flags,omitempty" json:"flags,omitempty"`
+	Commands []Command `toml:"command,omitempty" json:"commands,omitempty"`
+}
+
+// String implementation of fmt.Stringer
+func (p Command) String() string {
+	b, _ := json.Marshal(p)
+	return string(b)
+}

vendor/github.com/gobuffalo/buffalo-plugins/plugins/plugdeps/plugdeps.go

@@ -0,0 +1,88 @@
+package plugdeps
+
+import (
+	"os"
+	"path/filepath"
+	"strings"
+
+	"github.com/gobuffalo/meta"
+	"github.com/karrick/godirwalk"
+	"github.com/pkg/errors"
+)
+
+// ErrMissingConfig is if config/buffalo-plugins.toml file is not found. Use plugdeps#On(app) to test if plugdeps are being used
+var ErrMissingConfig = errors.Errorf("could not find a buffalo-plugins config file at %s", ConfigPath(meta.New(".")))
+
+// List all of the plugins the application depeneds on. Will return ErrMissingConfig
+// if the app is not using config/buffalo-plugins.toml to manage their plugins.
+// Use plugdeps#On(app) to test if plugdeps are being used.
+func List(app meta.App) (*Plugins, error) {
+	plugs := New()
+	if app.WithPop {
+		plugs.Add(pop)
+	}
+
+	lp, err := listLocal(app)
+	if err != nil {
+		return plugs, errors.WithStack(err)
+	}
+	plugs.Add(lp.List()...)
+
+	if !On(app) {
+		return plugs, ErrMissingConfig
+	}
+
+	p := ConfigPath(app)
+	tf, err := os.Open(p)
+	if err != nil {
+		return plugs, errors.WithStack(err)
+	}
+	if err := plugs.Decode(tf); err != nil {
+		return plugs, errors.WithStack(err)
+	}
+
+	return plugs, nil
+}
+
+func listLocal(app meta.App) (*Plugins, error) {
+	plugs := New()
+	proot := filepath.Join(app.Root, "plugins")
+	if _, err := os.Stat(proot); err != nil {
+		return plugs, nil
+	}
+	err := godirwalk.Walk(proot, &godirwalk.Options{
+		FollowSymbolicLinks: true,
+		Callback: func(path string, info *godirwalk.Dirent) error {
+			if info.IsDir() {
+				return nil
+			}
+			base := filepath.Base(path)
+			if strings.HasPrefix(base, "buffalo-") {
+				plugs.Add(Plugin{
+					Binary: base,
+					Local:  "." + strings.TrimPrefix(path, app.Root),
+				})
+			}
+			return nil
+		},
+	})
+	if err != nil {
+		return plugs, errors.WithStack(err)
+	}
+
+	return plugs, nil
+}
+
+// ConfigPath returns the path to the config/buffalo-plugins.toml file
+// relative to the app
+func ConfigPath(app meta.App) string {
+	return filepath.Join(app.Root, "config", "buffalo-plugins.toml")
+}
+
+// On checks for the existence of config/buffalo-plugins.toml if this
+// file exists its contents will be used to list plugins. If the file is not
+// found, then the BUFFALO_PLUGIN_PATH and ./plugins folders are consulted.
+func On(app meta.App) bool {
+	_, err := os.Stat(ConfigPath(app))
+	return err == nil
+}

vendor/github.com/gobuffalo/buffalo-plugins/plugins/plugdeps/plugin.go

@@ -0,0 +1,26 @@
+package plugdeps
+
+import (
+	"encoding/json"
+
+	"github.com/gobuffalo/meta"
+)
+
+// Plugin represents a Go plugin for Buffalo applications
+type Plugin struct {
+	Binary   string         `toml:"binary" json:"binary"`
+	GoGet    string         `toml:"go_get,omitempty" json:"go_get,omitempty"`
+	Local    string         `toml:"local,omitempty" json:"local,omitempty"`
+	Commands []Command      `toml:"command,omitempty" json:"commands,omitempty"`
+	Tags     meta.BuildTags `toml:"tags,omitempty" json:"tags,omitempty"`
+}
+
+// String implementation of fmt.Stringer
+func (p Plugin) String() string {
+	b, _ := json.Marshal(p)
+	return string(b)
+}
+
+func (p Plugin) key() string {
+	return p.Binary + p.GoGet + p.Local
+}

vendor/github.com/gobuffalo/buffalo-plugins/plugins/plugdeps/plugins.go

@@ -0,0 +1,98 @@
+package plugdeps
+
+import (
+	"io"
+	"sort"
+	"sync"
+
+	"github.com/BurntSushi/toml"
+	"github.com/pkg/errors"
+)
+
+// Plugins manages the config/buffalo-plugins.toml file
+// as well as the plugins available from the file.
+type Plugins struct {
+	plugins map[string]Plugin
+	moot    *sync.RWMutex
+}
+
+// Encode the list of plugins, in TOML format, to the reader
+func (plugs *Plugins) Encode(w io.Writer) error {
+	tp := tomlPlugins{
+		Plugins: plugs.List(),
+	}
+
+	if err := toml.NewEncoder(w).Encode(tp); err != nil {
+		return errors.WithStack(err)
+	}
+	return nil
+}
+
+// Decode the list of plugins, in TOML format, from the reader
+func (plugs *Plugins) Decode(r io.Reader) error {
+	tp := &tomlPlugins{
+		Plugins: []Plugin{},
+	}
+	if _, err := toml.DecodeReader(r, tp); err != nil {
+		return errors.WithStack(err)
+	}
+	for _, p := range tp.Plugins {
+		plugs.Add(p)
+	}
+	return nil
+}
+
+// List of dependent plugins listed in order of Plugin.String()
+func (plugs *Plugins) List() []Plugin {
+	m := map[string]Plugin{}
+	plugs.moot.RLock()
+	for _, p := range plugs.plugins {
+		m[p.key()] = p
+	}
+	plugs.moot.RUnlock()
+	var pp []Plugin
+	for _, v := range m {
+		pp = append(pp, v)
+	}
+	sort.Slice(pp, func(a, b int) bool {
+		return pp[a].Binary < pp[b].Binary
+	})
+	return pp
+}
+
+// Add plugin(s) to the list of dependencies
+func (plugs *Plugins) Add(pp ...Plugin) {
+	plugs.moot.Lock()
+	for _, p := range pp {
+		plugs.plugins[p.key()] = p
+	}
+	plugs.moot.Unlock()
+}
+
+// Remove plugin(s) from the list of dependencies
+func (plugs *Plugins) Remove(pp ...Plugin) {
+	plugs.moot.Lock()
+	for _, p := range pp {
+		delete(plugs.plugins, p.key())
+	}
+	plugs.moot.Unlock()
+}
+
+// New returns a configured *Plugins value
+func New() *Plugins {
+	plugs := &Plugins{
+		plugins: map[string]Plugin{},
+		moot:    &sync.RWMutex{},
+	}
+	plugs.Add(self)
+	return plugs
+}
+
+type tomlPlugins struct {
+	Plugins []Plugin `toml:"plugin"`
+}
+
+var self = Plugin{
+	Binary: "buffalo-plugins",
+	GoGet:  "github.com/gobuffalo/buffalo-plugins",
+}

vendor/github.com/gobuffalo/buffalo-plugins/plugins/plugdeps/pop.go

@@ -0,0 +1,6 @@
+package plugdeps
+
+var pop = Plugin{
+	Binary: "buffalo-pop",
+	GoGet:  "github.com/gobuffalo/buffalo-pop",
+}

vendor/github.com/gobuffalo/buffalo-plugins/plugins/plugins.go

@@ -0,0 +1,232 @@
+package plugins
+
+import (
+	"bytes"
+	"context"
+	"encoding/json"
+	"os"
+	"os/exec"
+	"path/filepath"
+	"strings"
+	"time"
+
+	"github.com/gobuffalo/buffalo-plugins/plugins/plugdeps"
+	"github.com/gobuffalo/envy"
+	"github.com/gobuffalo/meta"
+	"github.com/karrick/godirwalk"
+	"github.com/markbates/oncer"
+	"github.com/pkg/errors"
+	"github.com/sirupsen/logrus"
+)
+
+const timeoutEnv = "BUFFALO_PLUGIN_TIMEOUT"
+
+var t = time.Second * 2
+
+func timeout() time.Duration {
+	oncer.Do("plugins.timeout", func() {
+		rawTimeout, err := envy.MustGet(timeoutEnv)
+		if err == nil {
+			if parsed, err := time.ParseDuration(rawTimeout); err == nil {
+				t = parsed
+			} else {
+				logrus.Errorf("%q value is malformed assuming default %q: %v", timeoutEnv, t, err)
+			}
+		} else {
+			logrus.Debugf("%q not set, assuming default of %v", timeoutEnv, t)
+		}
+	})
+	return t
+}
+
+// List maps a Buffalo command to a slice of Command
+type List map[string]Commands
+
+var _list List
+
+// Available plugins for the `buffalo` command.
+// It will look in $GOPATH/bin and the `./plugins` directory.
+// This can be changed by setting the $BUFFALO_PLUGIN_PATH
+// environment variable.
+//
+// Requirements:
+// * file/command must be executable
+// * file/command must start with `buffalo-`
+// * file/command must respond to `available` and return JSON of
+//	 plugins.Commands{}
+//
+// Limit full path scan with direct plugin path
+//
+// If a file/command doesn't respond to being invoked with `available`
+// within one second, buffalo will assume that it is unable to load. This
+// can be changed by setting the $BUFFALO_PLUGIN_TIMEOUT environment
+// variable. It must be set to a duration that `time.ParseDuration` can
+// process.
+func Available() (List, error) {
+	var err error
+	oncer.Do("plugins.Available", func() {
+		defer func() {
+			if err := saveCache(); err != nil {
+				logrus.Error(err)
+			}
+		}()
+
+		app := meta.New(".")
+
+		if plugdeps.On(app) {
+			_list, err = listPlugDeps(app)
+			return
+		}
+
+		paths := []string{"plugins"}
+
+		from, err := envy.MustGet("BUFFALO_PLUGIN_PATH")
+		if err != nil {
+			from, err = envy.MustGet("GOPATH")
+			if err != nil {
+				return
+			}
+			from = filepath.Join(from, "bin")
+		}
+
+		paths = append(paths, strings.Split(from, string(os.PathListSeparator))...)
+
+		list := List{}
+		for _, p := range paths {
+			if ignorePath(p) {
+				continue
+			}
+			if _, err := os.Stat(p); err != nil {
+				continue
+			}
+
+			err := godirwalk.Walk(p, &godirwalk.Options{
+				FollowSymbolicLinks: true,
+				Callback: func(path string, info *godirwalk.Dirent) error {
+					if err != nil {
+						// May indicate a permissions problem with the path, skip it
+						return nil
+					}
+					if info.IsDir() {
+						return nil
+					}
+					base := filepath.Base(path)
+					if strings.HasPrefix(base, "buffalo-") {
+						ctx, cancel := context.WithTimeout(context.Background(), timeout())
+						commands := askBin(ctx, path)
+						cancel()
+						for _, c := range commands {
+							bc := c.BuffaloCommand
+							if _, ok := list[bc]; !ok {
+								list[bc] = Commands{}
+							}
+							c.Binary = path
+							list[bc] = append(list[bc], c)
+						}
+					}
+					return nil
+				},
+			})
+
+			if err != nil {
+				return
+			}
+		}
+		_list = list
+	})
+	return _list, err
+}
+
+func askBin(ctx context.Context, path string) Commands {
+	start := time.Now()
+	defer func() {
+		logrus.Debugf("askBin %s=%.4f s", path, time.Since(start).Seconds())
+	}()
+
+	commands := Commands{}
+	defer func() {
+		addToCache(path, cachedPlugin{
+			Commands: commands,
+		})
+	}()
+	if cp, ok := findInCache(path); ok {
+		s := sum(path)
+		if s == cp.CheckSum {
+			logrus.Debugf("cache hit: %s", path)
+			commands = cp.Commands
+			return commands
+		}
+	}
+	logrus.Debugf("cache miss: %s", path)
+	if strings.HasPrefix(filepath.Base(path), "buffalo-no-sqlite") {
+		return commands
+	}
+
+	cmd := exec.CommandContext(ctx, path, "available")
+	bb := &bytes.Buffer{}
+	cmd.Stdout = bb
+	err := cmd.Run()
+	if err != nil {
+		return commands
+	}
+	msg := bb.String()
+	for len(msg) > 0 {
+		err = json.NewDecoder(strings.NewReader(msg)).Decode(&commands)
+		if err == nil {
+			return commands
+		}
+		msg = msg[1:]
+	}
+	logrus.Errorf("[PLUGIN] error decoding plugin %s: %s\n%s\n", path, err, msg)
+	return commands
+}
+
+func ignorePath(p string) bool {
+	p = strings.ToLower(p)
+	for _, x := range []string{`c:\windows`, `c:\program`} {
+		if strings.HasPrefix(p, x) {
+			return true
+		}
+	}
+	return false
+}
+
+func listPlugDeps(app meta.App) (List, error) {
+	list := List{}
+	plugs, err := plugdeps.List(app)
+	if err != nil {
+		return list, err
+	}
+	for _, p := range plugs.List() {
+		ctx, cancel := context.WithTimeout(context.Background(), timeout())
+		defer cancel()
+		bin := p.Binary
+		if len(p.Local) != 0 {
+			bin = p.Local
+		}
+		bin, err := LookPath(bin)
+		if err != nil {
+			if errors.Cause(err) != ErrPlugMissing {
+				return list, err
+			}
+			continue
+		}
+		commands := askBin(ctx, bin)
+		cancel()
+		for _, c := range commands {
+			bc := c.BuffaloCommand
+			if _, ok := list[bc]; !ok {
+				list[bc] = Commands{}
+			}
+			c.Binary = p.Binary
+			for _, pc := range p.Commands {
+				if c.Name == pc.Name {
+					c.Flags = pc.Flags
+					break
+				}
+			}
+			list[bc] = append(list[bc], c)
+		}
+	}
+	return list, nil
+}

vendor/github.com/gobuffalo/buffalo-plugins/plugins/version.go

@@ -0,0 +1,3 @@
+package plugins
+
+const Version = "v1.11.0"