The panic at fs/lifecycle.go:463 was a nil function pointer: fs.Config.MkdirAll
is a func field, not a method, and the struct literal in cmd/olliesrv/main.go
omitted it, defaulting to nil. When CreateAgent called
rs.cfg.MkdirAll(...), it panicked before ever reaching the autoload loop.
- Add MkdirAll: os.MkdirAll to fs.Config in main.go
- Spawn tool server in Create() so empty session/new sessions are
operational, then reuse it in CreateAgent (else if sess.proc != nil)
- Wrap create agent error with fmt.Errorf for clearer messages
- Add panic stack trace to stderr for debugging
The old fs/session/ package (14 files) and cmd/olliesrv/elevate_tree.go
(imperative FileTree implementations) are gone. Replaced by a single
declarative EDSL in fs/spec.go that declares the entire 9P namespace.
cmd/olliesrv/server.go simplified from 1430 to 825 lines:
- Deleted pathType() (110 lines) — tree.Stat() now handles all path resolution
- Deleted isSessionFile(), dirMode(), filePerm() — all from tree's info
- Deleted fsRoute/routes/route/routeDir — single rootTree, no route table
- Deleted elevateTree — EDSL handles /elevate/ in spec.go
- Deleted handleWrite(), readDNS(), helpPath() — dead code
- Deleted all 5 per-fid result fields — EDSL Request handlers manage state
- Deleted all path-based intercepts in read()/write() — entry.RequestRespMode()
- Deleted all path-depth hacks in makeStat() — custom Stat() closures in EDSL
- Deleted all content-length compute logic — info.Size() from tree
- Removed imports: agent, backend, elevate, paths, toolsrv, json
New fs/ package:
- spec.go — single EDSL declaration of the entire namespace
- builder.go — BuildTree() validates and compiles spec into *Tree
- tree.go — configurable FileTree implementation
- fsnode.go — Dir(), Leaf(), TemplateDir(), NodeOption constructors
- agentfiles.go / sessionfiles.go / rootfiles.go / elevatefiles.go
— handler implementations wired by the EDSL
- lifecycle.go — Create, Kill, Rename, Shutdown, InterruptAll
- persist.go, procfiles.go
- edsl.md — documentation of the EDSL