expressions working

Signed-off-by: Casey Lee <cplee@nektos.com>

vendor/gopkg.in/godo.v2/LICENSE

@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) 2013-2014 Mario L. Gutierrez <mario@mgutz.com>
+
+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.

vendor/gopkg.in/godo.v2/glob/fileAsset.go

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+package glob
+
+import "os"
+
+// FileAsset contains file information and path from globbing.
+type FileAsset struct {
+	os.FileInfo
+	// Path to asset
+	Path string
+}
+
+// Stat updates the stat of this asset.
+func (fa *FileAsset) Stat() (*os.FileInfo, error) {
+	fi, err := os.Stat(fa.Path)
+	if err != nil {
+		return nil, err
+	}
+	fa.FileInfo = fi
+	return &fa.FileInfo, nil
+}

vendor/gopkg.in/godo.v2/glob/glob.go

@@ -0,0 +1,277 @@
+package glob
+
+import (
+	"bytes"
+	"fmt"
+	//"log"
+	"os"
+	gpath "path"
+	"path/filepath"
+	"regexp"
+	"strings"
+	"sync"
+	"unicode/utf8"
+
+	"github.com/MichaelTJones/walk"
+)
+
+const (
+	// NotSlash is any rune but path separator.
+	notSlash = "[^/]"
+	// AnyRune is zero or more non-path separators.
+	anyRune = notSlash + "*"
+	// ZeroOrMoreDirectories is used by ** patterns.
+	zeroOrMoreDirectories = `(?:[.{}\w\-\ ]+\/)*`
+	// TrailingStarStar matches everything inside directory.
+	trailingStarStar = "/**"
+	// SlashStarStarSlash maches zero or more directories.
+	slashStarStarSlash = "/**/"
+)
+
+// RegexpInfo contains additional info about the Regexp created by a glob pattern.
+type RegexpInfo struct {
+	Regexp *regexp.Regexp
+	Negate bool
+	Path   string
+	Glob   string
+}
+
+// MatchString matches a string with either a regexp or direct string match
+func (ri *RegexpInfo) MatchString(s string) bool {
+	if ri.Regexp != nil {
+		return ri.Regexp.MatchString(s)
+	} else if ri.Path != "" {
+		return strings.HasSuffix(s, ri.Path)
+	}
+	return false
+}
+
+// Globexp builds a regular express from from extended glob pattern and then
+// returns a Regexp object.
+func Globexp(glob string) *regexp.Regexp {
+	var re bytes.Buffer
+
+	re.WriteString("^")
+
+	i, inGroup, L := 0, false, len(glob)
+
+	for i < L {
+		r, w := utf8.DecodeRuneInString(glob[i:])
+
+		switch r {
+		default:
+			re.WriteRune(r)
+
+		case '\\', '$', '^', '+', '.', '(', ')', '=', '!', '|':
+			re.WriteRune('\\')
+			re.WriteRune(r)
+
+		case '/':
+			// TODO optimize later, string could be long
+			rest := glob[i:]
+			re.WriteRune('/')
+			if strings.HasPrefix(rest, "/**/") {
+				re.WriteString(zeroOrMoreDirectories)
+				w *= 4
+			} else if rest == "/**" {
+				re.WriteString(".*")
+				w *= 3
+			}
+
+		case '?':
+			re.WriteRune('.')
+
+		case '[', ']':
+			re.WriteRune(r)
+
+		case '{':
+			if i < L-1 {
+				if glob[i+1:i+2] == "{" {
+					re.WriteString("\\{")
+					w *= 2
+					break
+				}
+			}
+			inGroup = true
+			re.WriteRune('(')
+
+		case '}':
+			if inGroup {
+				inGroup = false
+				re.WriteRune(')')
+			} else {
+				re.WriteRune('}')
+			}
+
+		case ',':
+			if inGroup {
+				re.WriteRune('|')
+			} else {
+				re.WriteRune('\\')
+				re.WriteRune(r)
+			}
+
+		case '*':
+			rest := glob[i:]
+			if strings.HasPrefix(rest, "**/") {
+				re.WriteString(zeroOrMoreDirectories)
+				w *= 3
+			} else {
+				re.WriteString(anyRune)
+			}
+		}
+
+		i += w
+	}
+
+	re.WriteString("$")
+	//log.Printf("regex string %s", re.String())
+	return regexp.MustCompile(re.String())
+}
+
+// Glob returns files and dirctories that match patterns. Patterns must use
+// slashes, even Windows.
+//
+// Special chars.
+//
+//   /**/   - match zero or more directories
+//   {a,b}  - match a or b, no spaces
+//   *      - match any non-separator char
+//   ?      - match a single non-separator char
+//   **/    - match any directory, start of pattern only
+//   /**    - match any this directory, end of pattern only
+//   !      - removes files from resultset, start of pattern only
+//
+func Glob(patterns []string) ([]*FileAsset, []*RegexpInfo, error) {
+	// TODO very inefficient and unintelligent, optimize later
+
+	m := map[string]*FileAsset{}
+	regexps := []*RegexpInfo{}
+
+	for _, pattern := range patterns {
+		remove := strings.HasPrefix(pattern, "!")
+		if remove {
+			pattern = pattern[1:]
+			if hasMeta(pattern) {
+				re := Globexp(pattern)
+				regexps = append(regexps, &RegexpInfo{Regexp: re, Glob: pattern, Negate: true})
+				for path := range m {
+					if re.MatchString(path) {
+						m[path] = nil
+					}
+				}
+			} else {
+				path := gpath.Clean(pattern)
+				m[path] = nil
+				regexps = append(regexps, &RegexpInfo{Path: path, Glob: pattern, Negate: true})
+			}
+		} else {
+			if hasMeta(pattern) {
+				re := Globexp(pattern)
+				regexps = append(regexps, &RegexpInfo{Regexp: re, Glob: pattern})
+				root := PatternRoot(pattern)
+				if root == "" {
+					return nil, nil, fmt.Errorf("Cannot get root from pattern: %s", pattern)
+				}
+				fileAssets, err := walkFiles(root)
+				if err != nil {
+					return nil, nil, err
+				}
+
+				for _, file := range fileAssets {
+					if re.MatchString(file.Path) {
+						// TODO closure problem assigning &file
+						tmp := file
+						m[file.Path] = tmp
+					}
+				}
+			} else {
+				path := gpath.Clean(pattern)
+				info, err := os.Stat(path)
+				if err != nil {
+					return nil, nil, err
+				}
+				regexps = append(regexps, &RegexpInfo{Path: path, Glob: pattern, Negate: false})
+				fa := &FileAsset{Path: path, FileInfo: info}
+				m[path] = fa
+			}
+		}
+	}
+
+	//log.Printf("m %v", m)
+	keys := []*FileAsset{}
+	for _, it := range m {
+		if it != nil {
+			keys = append(keys, it)
+		}
+	}
+	return keys, regexps, nil
+}
+
+// hasMeta determines if a path has special chars used to build a Regexp.
+func hasMeta(path string) bool {
+	return strings.IndexAny(path, "*?[{") >= 0
+}
+
+func isDir(path string) bool {
+	st, err := os.Stat(path)
+	if os.IsNotExist(err) {
+		return false
+	}
+	return st.IsDir()
+}
+
+// PatternRoot gets a real directory root from a pattern. The directory
+// returned is used as the start location for globbing.
+func PatternRoot(s string) string {
+	if isDir(s) {
+		return s
+	}
+
+	// No directory in pattern
+	parts := strings.Split(s, "/")
+	if len(parts) == 1 {
+		return "."
+	}
+	// parts returns an empty string at positio 0 if the s starts with "/"
+	root := ""
+
+	// Build path until a dirname has a char used to build regex
+	for i, part := range parts {
+		if hasMeta(part) {
+			break
+		}
+		if i > 0 {
+			root += "/"
+		}
+		root += part
+	}
+	// Default to cwd
+	if root == "" {
+		root = "."
+	}
+	return root
+}
+
+// walkFiles walks a directory starting at root returning all directories and files
+// include those found in subdirectories.
+func walkFiles(root string) ([]*FileAsset, error) {
+	fileAssets := []*FileAsset{}
+	var lock sync.Mutex
+	visitor := func(path string, info os.FileInfo, err error) error {
+		// if err != nil {
+		// 	fmt.Println("visitor err", err.Error(), "root", root)
+		// }
+		if err == nil {
+			lock.Lock()
+			fileAssets = append(fileAssets, &FileAsset{FileInfo: info, Path: filepath.ToSlash(path)})
+			lock.Unlock()
+		}
+		return nil
+	}
+	err := walk.Walk(root, visitor)
+	if err != nil {
+		return nil, err
+	}
+	return fileAssets, nil
+}

vendor/gopkg.in/godo.v2/glob/watchCriteria.go

@@ -0,0 +1,164 @@
+package glob
+
+import (
+	"fmt"
+	"path/filepath"
+	"regexp"
+	"strings"
+
+	"github.com/mgutz/str"
+)
+
+// WatchCriterion is the criteria needed to test if a file
+// matches a pattern.
+type WatchCriterion struct {
+	// Root is the root directory to start watching.
+	Root string
+	// Includes are the regexp for including files
+	IncludesRegexp []*regexp.Regexp
+	// Excludes are the regexp for excluding files
+	ExcludesRegexp []*regexp.Regexp
+	Includes       []string
+	Excludes       []string
+}
+
+func newWatchCriterion(r string) *WatchCriterion {
+	return &WatchCriterion{
+		Root:           r,
+		IncludesRegexp: []*regexp.Regexp{},
+		ExcludesRegexp: []*regexp.Regexp{},
+		Includes:       []string{},
+		Excludes:       []string{},
+	}
+}
+
+// WatchCriteria is the set of criterion to watch one or more glob patterns.
+type WatchCriteria struct {
+	Items []*WatchCriterion
+}
+
+func newWatchCriteria() *WatchCriteria {
+	return &WatchCriteria{
+		Items: []*WatchCriterion{},
+	}
+}
+
+func (cr *WatchCriteria) findParent(root string) *WatchCriterion {
+	for _, item := range cr.Items {
+		if item.Root == root || strings.Contains(item.Root, root) {
+			return item
+		}
+	}
+	return nil
+}
+
+func (cr *WatchCriteria) add(glob string) error {
+	var err error
+
+	if glob == "" || glob == "!" {
+		return nil
+	}
+
+	isExclude := strings.HasPrefix(glob, "!")
+	if isExclude {
+		glob = glob[1:]
+	}
+
+	// determine if the root of pattern already exists
+	root := PatternRoot(glob)
+	root, err = filepath.Abs(root)
+	if err != nil {
+		return err
+	}
+	root = filepath.ToSlash(root)
+	cri := cr.findParent(root)
+	if cri == nil {
+		cri = newWatchCriterion(root)
+		cr.Items = append(cr.Items, cri)
+	}
+
+	glob, err = filepath.Abs(glob)
+	if err != nil {
+		return err
+	}
+
+	// add glob to {in,ex}cludes
+	if isExclude {
+		if str.SliceIndexOf(cri.Excludes, glob) < 0 {
+			re := Globexp(glob)
+			cri.ExcludesRegexp = append(cri.ExcludesRegexp, re)
+			cri.Excludes = append(cri.Excludes, glob)
+		}
+	} else {
+		if str.SliceIndexOf(cri.Includes, glob) < 0 {
+			re := Globexp(glob)
+			cri.IncludesRegexp = append(cri.IncludesRegexp, re)
+			cri.Includes = append(cri.Includes, glob)
+		}
+	}
+
+	return nil
+}
+
+// Roots returns the root paths of all criteria.
+func (cr *WatchCriteria) Roots() []string {
+	if cr.Items == nil || len(cr.Items) == 0 {
+		return nil
+	}
+
+	roots := make([]string, len(cr.Items))
+	for i, it := range cr.Items {
+		roots[i] = it.Root
+	}
+	return roots
+}
+
+// Matches determines if pth is matched by internal criteria.
+func (cr *WatchCriteria) Matches(pth string) bool {
+	match := false
+	pth = filepath.ToSlash(pth)
+	for _, it := range cr.Items {
+		// if sub path
+		if strings.HasPrefix(pth, it.Root) {
+			// check if matches an include pattern
+			for _, re := range it.IncludesRegexp {
+				if re.MatchString(pth) {
+					match = true
+					break
+				}
+			}
+			// when found, check if it is excluded
+			if match {
+				for _, re := range it.ExcludesRegexp {
+					if re.MatchString(pth) {
+						match = false
+						break
+					}
+				}
+				if match {
+					return true
+				}
+			}
+		}
+	}
+
+	return false
+}
+
+// EffectiveCriteria is the minimum set of criteria to watch the
+// items in patterns
+func EffectiveCriteria(globs ...string) (*WatchCriteria, error) {
+	if len(globs) == 0 {
+		return nil, nil
+	}
+	result := newWatchCriteria()
+	for _, glob := range globs {
+		err := result.add(glob)
+		if err != nil {
+			fmt.Println(err.Error())
+			return nil, err
+		}
+	}
+
+	return result, nil
+}