9p: add s/kill synthetic script

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

internal/p9/server.go

@@ -44,7 +44,6 @@ import (
 	"sync"
 	"time"
 
-	"9fans.net/go/plan9"
 	"ollie/pkg/agent"
 	"ollie/pkg/backend"
 	"ollie/pkg/config"
@@ -52,6 +51,8 @@ import (
 	"ollie/pkg/paths"
 	"ollie/pkg/tools"
 	"ollie/pkg/tools/execute"
+
+	"9fans.net/go/plan9"
 )
 
 const (
@@ -59,7 +60,6 @@ const (
 	QTFile = plan9.QTFILE
 )
 
-
 // session holds all state for one ollie agent session.
 type session struct {
 	mu     sync.RWMutex
@@ -74,7 +74,6 @@ type session struct {
 	chatOffset int    // byte position of chat EOF immediately before last prompt submit
 }
 
-
 // appendChat appends data to the session's chat log and bumps the Qid version.
 func (sess *session) appendChat(data []byte) {
 	if len(data) == 0 {
@@ -573,8 +572,8 @@ func (s *Server) read(cs *connState, fc *plan9.Fcall) *plan9.Fcall {
 		}
 	}
 
-	// s/new, s/idx, and s/ls are served from the session store.
+	// s/new, s/idx, s/kill, and s/ls are served from the session store.
-	if path == "/s/new" || path == "/s/idx" || path == "/s/ls" {
+	if path == "/s/new" || path == "/s/idx" || path == "/s/ls" || path == "/s/kill" {
 		plog.Debug("Tread path=%q offset=%d count=%d", path, fc.Offset, fc.Count)
 		content, err := s.sessionStore.Get(pathBase(path))
 		if err != nil {
@@ -709,7 +708,6 @@ func (s *Server) read(cs *connState, fc *plan9.Fcall) *plan9.Fcall {
 	return &plan9.Fcall{Type: plan9.Rread, Tag: fc.Tag, Count: 0}
 }
 
-
 // readSlice serves a byte slice at the requested offset/count.
 func (s *Server) readSlice(fc *plan9.Fcall, content []byte) *plan9.Fcall {
 	var data []byte
@@ -728,7 +726,6 @@ func (s *Server) helpPath() string {
 	return paths.CfgDir() + "/help.md"
 }
 
-
 func (s *Server) write(cs *connState, fc *plan9.Fcall) *plan9.Fcall {
 	cs.mu.Lock()
 	f, ok := cs.fids[fc.Fid]
@@ -1208,8 +1205,6 @@ func (s *Server) killSession(id string) {
 	}
 }
 
-
-
 // formatEvent converts an agent Event to bytes for appending to the chat log.
 // Output matches ollie-tui's MakeOutputFn so the chat file looks identical to
 // what appears in the TUI chat pane.
@@ -1458,7 +1453,7 @@ func (s *Server) makeStat(path string) plan9.Dir {
 		default:
 			if path == "/backends" || path == "/help" || path == "/s/idx" {
 				mode = 0444
-			} else if path == "/s/ls" {
+			} else if path == "/s/ls" || path == "/s/kill" {
 				mode = 0555
 			} else if path == "/s/new" {
 				mode = 0666
@@ -1533,7 +1528,7 @@ func (s *Server) makeStat(path string) plan9.Dir {
 	// that check stat before reading (cat, 9pfuse, etc.) see non-zero size.
 	if dir.Length == 0 && !isDir {
 		switch {
-		case path == "/s/new" || path == "/s/idx" || path == "/s/ls":
+		case path == "/s/new" || path == "/s/idx" || path == "/s/ls" || path == "/s/kill":
 			if content, err := s.sessionStore.Get(base); err == nil {
 				dir.Length = uint64(len(content))
 			}

internal/p9/sessionstore.go

@@ -18,6 +18,7 @@ func (s *SessionStore) List() ([]os.DirEntry, error) {
 		syntheticEntry("new", 0666),
 		syntheticEntry("idx", 0444),
 		syntheticEntry("ls", 0555),
+		syntheticEntry("kill", 0555),
 	}
 	s.srv.mu.RLock()
 	for id := range s.srv.sessions {
@@ -35,6 +36,8 @@ func (s *SessionStore) Stat(name string) (os.FileInfo, error) {
 		return &syntheticFileInfo{name: "idx", mode: 0444}, nil
 	case "ls":
 		return &syntheticFileInfo{name: "ls", mode: 0555}, nil
+	case "kill":
+		return &syntheticFileInfo{name: "kill", mode: 0555}, nil
 	}
 	s.srv.mu.RLock()
 	_, ok := s.srv.sessions[name]
@@ -52,7 +55,9 @@ func (s *SessionStore) Get(name string) ([]byte, error) {
 	case "idx":
 		return s.index(), nil
 	case "ls":
-		return []byte("#!/usr/bin/env bash\ncat ${OLLIE:-$HOME/mnt/ollie}/s/idx\n"), nil
+		return []byte("#!/usr/bin/env bash\ncat ${OLLIE}/s/idx\n"), nil
+	case "kill":
+		return []byte("#!/usr/bin/env bash\nrm -r ${OLLIE}/s/$1\n"), nil
 	}
 	return nil, fmt.Errorf("%s: not a readable file", name)
 }