feat: ✨ support file extended attributes

completions/bash/g-completion.bash

@@ -98,7 +98,8 @@ _g() {
     --literal -O
     --no-owner -Q
     --quote-name -g -l
-    --long -o"
+    --long -o
+    --extended -@"
 
     COMPREPLY=($(compgen -W "${opts}" -- ${cur}))
     return 0

completions/fish/g.fish

@@ -101,4 +101,5 @@ complete -c g -s Q -l quote-name -d "enclose entry names in double quotes"
 complete -c g -s g -d "like -all, but do not list owner"
 complete -c g -s l -l long -d "use a long listing format"
 complete -c g -s o -d "like -all, but do not list group information"
+complete -c g -s @ -l extended -d "list each file's extended attributes and sizes in long listing"
 complete -c g -f -a "(__fish_complete_path)"

completions/zsh/_g

@@ -125,6 +125,8 @@ _g() {
         '-l[use a long listing format]'
         '--long[use a long listing format]'
         '-o[like -all, but do not list group information]'
+        '-@[list each file's extended attributes and sizes in long listing]'
+        '--extended[list each file's extended attributes and sizes in long listing]'
         '*:filename:_files'
     )
 

go.mod

@@ -87,4 +87,5 @@ require (
 	golang.org/x/net v0.25.0 // indirect
 	golang.org/x/sys v0.20.0 // indirect
 	golang.org/x/text v0.15.0 // indirect
+	howett.net/plist v1.0.1 // indirect
 )

go.sum

@@ -99,6 +99,7 @@ github.com/jbenet/go-context v0.0.0-20150711004518-d14ea06fba99 h1:BQSFePA1RWJOl
 github.com/jbenet/go-context v0.0.0-20150711004518-d14ea06fba99/go.mod h1:1lJo3i6rXxKeerYnT8Nvf0QmHCRC1n8sfWVwXF2Frvo=
 github.com/jedib0t/go-pretty/v6 v6.5.9 h1:ACteMBRrrmm1gMsXe9PSTOClQ63IXDUt03H5U+UV8OU=
 github.com/jedib0t/go-pretty/v6 v6.5.9/go.mod h1:zbn98qrYlh95FIhwwsbIip0LYpwSG8SUOScs+v9/t0E=
+github.com/jessevdk/go-flags v1.4.0/go.mod h1:4FA24M0QyGHXBuZZK/XkWh8h0e1EYbRYJSGM75WSRxI=
 github.com/josharian/intern v1.0.0/go.mod h1:5DoeVV0s6jJacbCEi61lwdGj/aVlrQvzHFFd8Hwg//Y=
 github.com/jtolds/gls v4.20.0+incompatible/go.mod h1:QJZ7F/aHp+rZTRtaJ1ow/lLfFfVYBRgL+9YlvaHOwJU=
 github.com/junegunn/fzf v0.0.0-20240109033114-e4d0f7acd516 h1:QVNsMfKwLPfv0Ajq6LlBgS/dchHP9c/i3lTQRyhkxRs=
@@ -298,10 +299,13 @@ gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7 h1:uRGJdciOHaEIrze2W8Q3AKkep
 gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7/go.mod h1:dt/ZhP58zS4L8KSrWDmTeBkI65Dw0HsyUHuEVlX15mw=
 gopkg.in/warnings.v0 v0.1.2 h1:wFXVbFY8DY5/xOe1ECiWdKCzZlxgshcYVNkBHstARME=
 gopkg.in/warnings.v0 v0.1.2/go.mod h1:jksf8JmL6Qr/oQM2OXTHunEvvTAsrWBLb6OOjuVWRNI=
+gopkg.in/yaml.v1 v1.0.0-20140924161607-9f9df34309c0/go.mod h1:WDnlLJ4WF5VGsH/HVa3CI79GS0ol3YnhVnKP89i0kNg=
 gopkg.in/yaml.v2 v2.2.1/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.3.0/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.4.0/go.mod h1:RDklbk79AGWmwhnvt/jBztapEOGDOx6ZbXqjP6csGnQ=
 gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
 gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
+howett.net/plist v1.0.1 h1:37GdZ8tP09Q35o9ych3ehygcsL+HqKSwzctveSlarvM=
+howett.net/plist v1.0.1/go.mod h1:lqaXoTrLY4hg8tnEzNru53gicrbv7rrk+2xJA/7hw9g=

internal/cli/g.go

@@ -58,6 +58,7 @@ var (
 	groupEnabler    = contents.NewGroupEnabler()
 	gitEnabler      = contents.NewGitEnabler()
 	gitRepoEnabler  = contents.NewGitRepoEnabler()
+	extendedEnabler = contents.ExtendedEnabler{}
 	nameToDisplay   = contents.NewNameEnabler()
 	flagsEnabler    = contents.NewFlagsEnabler()
 	depthLimitMap   map[string]int
@@ -202,8 +203,8 @@ func dive(
 			continue
 		}
 		// store its parent and level/depth
-		info.Cache["parent"] = []byte(parent)
-		info.Cache["level"] = []byte(strconv.Itoa(depth))
+		info.Cache["parent"] = parent
+		info.Cache["level"] = depth
 		infos.AppendTo(info)
 		if f.IsDir() {
 			wg.Add(1)
@@ -523,6 +524,11 @@ var logic = func(context *cli.Context) error {
 		contentFunc = append(contentFunc, gitEnabler.Enable(r))
 	}
 
+	extended := context.Bool("extended")
+	if extended {
+		noOutputFunc = append(noOutputFunc, extendedEnabler.Enable(r))
+	}
+
 	gitBranch := context.Bool("git-repo-branch")
 	if gitBranch {
 		contentFunc = append(contentFunc, gitRepoEnabler.Enable(r))
@@ -619,7 +625,7 @@ var logic = func(context *cli.Context) error {
 	case "never":
 	case "always":
 		nameToDisplay.SetHyperlink()
-		display.IncludeHyperlink = true
+		global.IncludeHyperlink = true
 	default:
 		fallthrough
 	case "auto":
@@ -629,7 +635,7 @@ var logic = func(context *cli.Context) error {
 			case *display.JsonPrinter:
 			default:
 				nameToDisplay.SetHyperlink()
-				display.IncludeHyperlink = true
+				global.IncludeHyperlink = true
 			}
 		}
 	}
@@ -800,7 +806,7 @@ var logic = func(context *cli.Context) error {
 			infos = itemFilter.Filter(infos...)
 
 			if tree {
-				infos[0].Cache["level"] = []byte("0")
+				infos[0].Cache["level"] = 0
 			}
 			goto final
 		}
@@ -815,7 +821,7 @@ var logic = func(context *cli.Context) error {
 			infos = append(
 				infos, info,
 			)
-			infos[0].Cache["level"] = []byte("0")
+			infos[0].Cache["level"] = 0
 			if depth >= 1 || depth < 0 {
 				wg := sync.WaitGroup{}
 				infoSlice := util.NewSlice[*item.FileInfo](10)
@@ -981,7 +987,7 @@ var logic = func(context *cli.Context) error {
 					for _, part := range allPart {
 						content, ok := it.Get(part)
 						if ok && part != contents.NameName {
-							l := display.WidthNoHyperLinkLen(content.String())
+							l := util.WidthNoHyperLinkLen(content.String())
 							if l > longestEachPart[part] {
 								longestEachPart[part] = l
 							}
@@ -994,7 +1000,7 @@ var logic = func(context *cli.Context) error {
 					for _, part := range allPart {
 						if part != contents.NameName {
 							content, _ := it.Get(part)
-							l := display.WidthNoHyperLinkLen(content.String())
+							l := util.WidthNoHyperLinkLen(content.String())
 							if l < longestEachPart[part] {
 								expand := content.SetPrefix
 								if align.IsLeft(part) {

internal/cli/view.go

@@ -837,6 +837,13 @@ var viewFlag = []cli.Flag{
 		DisableDefaultText: true,
 		Category:           "VIEW",
 	},
+	&cli.BoolFlag{
+		Name:               "extended",
+		Aliases:            []string{"@"},
+		Usage:              `list each file's extended attributes and sizes in long listing`,
+		DisableDefaultText: true,
+		Category:           "VIEW",
+	},
 }
 
 func setLimit(context *cli.Context) error {

internal/content/charset.go

@@ -27,7 +27,7 @@ func (c *CharsetEnabler) Enable(renderer *render.Renderer) ContentOption {
 	return func(info *item.FileInfo) (string, string) {
 		res, returnName := func() (string, string) {
 			if c, ok := info.Cache[Charset]; ok {
-				return string(c), Charset
+				return c.(string), Charset
 			}
 			// only text file has charset
 			if info.IsDir() {
@@ -63,7 +63,7 @@ func (c *CharsetEnabler) Enable(renderer *render.Renderer) ContentOption {
 						return "failed_to_detect", Charset
 					}
 					charset = best.Charset
-					info.Cache[Charset] = []byte(charset)
+					info.Cache[Charset] = charset
 				}
 				return charset, Charset
 			}

internal/content/duplicate.go

@@ -116,7 +116,7 @@ func fileHash(fileInfo *item.FileInfo, isThorough bool) (string, error) {
 	var fileReadErr error
 	if isThorough || fileInfo.Size() <= thresholdFileSize {
 		if content, ok := fileInfo.Cache["content"]; ok {
-			bytes = content
+			bytes = content.([]byte)
 		} else {
 			bytes, fileReadErr = os.ReadFile(fileInfo.FullPath)
 			if fileReadErr != nil {

internal/content/extended.go

@@ -0,0 +1,69 @@
+package content
+
+import (
+	"encoding/xml"
+	"fmt"
+	"github.com/Equationzhao/g/internal/global"
+	"github.com/Equationzhao/g/internal/item"
+	"github.com/Equationzhao/g/internal/render"
+	"github.com/pkg/xattr"
+	"github.com/valyala/bytebufferpool"
+	"howett.net/plist"
+)
+
+type ExtendedEnabler struct{}
+
+const Extended = global.NameOfExtended
+
+func formatBytes(bytes []byte) string {
+	res := bytebufferpool.Get()
+	defer bytebufferpool.Put(res)
+	_ = res.WriteByte('[')
+	for i, b := range bytes {
+		if i > 0 {
+			_, _ = res.WriteString(", ")
+		}
+		_, _ = res.WriteString(fmt.Sprintf("%02x", b))
+	}
+	_ = res.WriteByte(']')
+	return res.String()
+}
+
+// formatXattrValue attempts to parse the xattr value and returns a human-readable string.
+func formatXattrValue(value []byte) string {
+	if len(value) == 0 {
+		return "<empty>"
+	}
+
+	// Check if the value is a binary plist
+	var plistData any
+	if _, err := plist.Unmarshal(value, &plistData); err == nil {
+		xmlOut, err := xml.MarshalIndent(plistData, "", "  ")
+		if err == nil {
+			return string(xmlOut)
+		}
+	}
+	// Default to hex encoding
+	return formatBytes(value)
+}
+
+func (e ExtendedEnabler) Enable(renderer *render.Renderer) NoOutputOption {
+	return func(info *item.FileInfo) {
+		var list any
+		ok := false
+		if list, ok = info.Cache[Extended]; !ok {
+			list, _ = xattr.LList(info.FullPath)
+			info.Cache[Extended] = list
+		}
+		if lists, ok := list.([]string); ok && len(lists) > 0 {
+			for j, key := range lists {
+				val, _ := xattr.LGet(info.FullPath, key)
+				if j == len(lists)-1 {
+					info.AfterLines = append(info.AfterLines, renderer.Extended(fmt.Sprintf("└── %s: %s", key, formatXattrValue(val))))
+				} else {
+					info.AfterLines = append(info.AfterLines, renderer.Extended(fmt.Sprintf("├── %s: %s", key, formatXattrValue(val))))
+				}
+			}
+		}
+	}
+}

internal/content/inode.go

@@ -21,7 +21,7 @@ func (i *InodeEnabler) Enable(renderer *render.Renderer) ContentOption {
 	return func(info *item.FileInfo) (string, string) {
 		i := ""
 		if m, ok := info.Cache[Inode]; ok {
-			i = string(m)
+			i = m.(string)
 		} else {
 			i = osbased.Inode(info)
 		}

internal/content/mimetype.go

@@ -38,7 +38,7 @@ func (e *MimeFileTypeEnabler) Enable(renderer *render.Renderer) ContentOption {
 				returnName = ParentMimeTypeName
 			}
 			if c, ok := info.Cache[MimeTypeName]; ok {
-				tn = string(c)
+				tn = c.(string)
 			} else {
 				if info.IsDir() {
 					tn = "directory"
@@ -58,7 +58,7 @@ func (e *MimeFileTypeEnabler) Enable(renderer *render.Renderer) ContentOption {
 				}
 				if m, ok := info.Cache[MimeTypeName]; ok {
 					info.Cache[Charset] = m
-					return string(m), returnName
+					return m.(string), returnName
 				}
 
 				file, err := os.Open(info.FullPath)
@@ -83,7 +83,7 @@ func (e *MimeFileTypeEnabler) Enable(renderer *render.Renderer) ContentOption {
 				s := strings.SplitN(tn, ";", 2)
 				tn = s[0]
 				charset := strings.SplitN(s[1], "=", 2)[1]
-				info.Cache[Charset] = []byte(charset)
+				info.Cache[Charset] = charset
 			}
 
 			return tn, returnName

internal/content/permission.go

@@ -4,20 +4,24 @@ import (
 	"strconv"
 
 	"github.com/Equationzhao/g/internal/align"
-	constval "github.com/Equationzhao/g/internal/global"
+	"github.com/Equationzhao/g/internal/global"
 	"github.com/Equationzhao/g/internal/item"
 	"github.com/Equationzhao/g/internal/render"
 	"github.com/pkg/xattr"
 )
 
-const Permissions = constval.NameOfPermission
+const Permissions = global.NameOfPermission
 
 // EnableFileMode return file mode like -rwxrwxrwx/drwxrwxrwx
 func EnableFileMode(renderer *render.Renderer) ContentOption {
 	align.Register(Permissions)
 	return func(info *item.FileInfo) (string, string) {
 		perm := renderer.FileMode(info.Mode().String())
+		if info.Cache[Extended] != nil {
+			perm += "@"
+		}
 		list, _ := xattr.LList(info.FullPath)
+		info.Cache[Extended] = list
 		if len(list) != 0 {
 			perm += "@"
 		}

internal/content/size.go

@@ -273,7 +273,7 @@ func (s *SizeEnabler) EnableSize(size SizeUnit, renderer *render.Renderer) Conte
 		if s.recursive != nil {
 			if r, ok := info.Cache[RecursiveSizeName]; ok {
 				// convert []byte to int64
-				v, _ = strconv.ParseInt(string(r), 10, 64)
+				v = r.(int64)
 			} else {
 				v = util.RecursivelySizeOf(info, s.recursive.depth)
 			}

internal/content/sum.go

@@ -41,7 +41,7 @@ func (s SumEnabler) EnableSum(renderer *render.Renderer, sumTypes ...SumType) []
 
 			var content []byte
 			if content_, ok := info.Cache["content"]; ok {
-				content = content_
+				content = content_.([]byte)
 			} else {
 				file, err := os.Open(info.FullPath)
 				if err != nil {

internal/display/header.go

@@ -4,6 +4,8 @@ import (
 	"fmt"
 	"strings"
 
+	"github.com/Equationzhao/g/internal/util"
+
 	"github.com/Equationzhao/g/internal/align"
 	constval "github.com/Equationzhao/g/internal/global"
 	"github.com/Equationzhao/g/internal/item"
@@ -52,7 +54,7 @@ func (h HeaderMaker) Make(p Printer, Items ...*item.FileInfo) {
 			for _, it := range Items {
 				content, _ := it.Get(s)
 				if s != constval.NameOfName {
-					toAddNum := len(s) - WidthNoHyperLinkLen(content.String())
+					toAddNum := len(s) - util.WidthNoHyperLinkLen(content.String())
 					if align.IsLeft(s) {
 						content.AddSuffix(strings.Repeat(" ", toAddNum))
 					} else {