ponytail simplifications to panto cli and lua extensiosn

1 files changed, 10 insertions, 13 deletions

diff --git a/src/main.zig b/src/main.zig
index 4b26a22..2c5b414 100644
--- a/src/main.zig
+++ b/src/main.zig
@@ -8,7 +8,6 @@ const lua_event_bridge = @import("lua_event_bridge.zig");
 const extension_loader = @import("extension_loader.zig");
 const panto_home = @import("panto_home.zig");
 const luarocks_runtime = @import("luarocks_runtime.zig");
-const self_exe = @import("self_exe.zig");
 const subcommand = @import("subcommand.zig");
 const session_paths = @import("session_paths.zig");
 const models_toml = @import("models_toml.zig");
@@ -20,9 +19,8 @@ const command = @import("command.zig");
 const command_compaction = @import("compaction.zig");
 const debug_log = @import("debug_log.zig");
 
-/// Route the process-wide log stream. In Debug builds this redirects every
-/// `std.log` call to a per-session file (keeping the TUI clean); other builds
-/// keep the stderr default. See `debug_log.zig`.
+/// Route the process-wide log stream. `PANTO_DEBUG!=0` redirects it to a
+/// per-session file; otherwise this keeps the stderr default.
 pub const std_options: std.Options = .{ .logFn = debug_log.logFn };
 
 // TUI foundation layer (Phase 1, sub-phase 1). Not yet wired into the REPL;
@@ -59,7 +57,6 @@ test {
     _ = extension_loader;
     _ = panto_home;
     _ = luarocks_runtime;
-    _ = self_exe;
     _ = subcommand;
     _ = models_toml;
     _ = config_file;
@@ -169,7 +166,7 @@ pub fn main(init: std.process.Init) !void {
     // Resolve the absolute path of the running panto binary. Needed
     // both by `panto lua` (we re-exec ourselves through a wrapper
     // luarocks invokes) and by the agent's bootstrap.
-    const panto_path = try self_exe.selfExePathAlloc(alloc);
+    const panto_path = try std.process.executablePathAlloc(io, alloc);
     defer alloc.free(panto_path);
 
     // Subcommand dispatch: `panto lua` and `panto bootstrap` short
@@ -289,10 +286,10 @@ pub fn main(init: std.process.Init) !void {
     // `session.info` is adopted by the agent below (`Agent.init` can't fail)
     // and freed in the agent's `deinit`; no separate cleanup here.
 
-    // Arm the per-session debug log now that we know the session id. In Debug
-    // builds this opens `$PANTO_HOME/debug/<id>.log` and redirects all
-    // `std.log` output there; no-op in release. Best-effort — failures leave
-    // logging disabled rather than aborting startup.
+    // Arm the per-session debug log now that we know the session id.
+    // PANTO_DEBUG!=0 redirects `std.log` output to
+    // `<data home>/debug/<id>.log`. Best-effort: failures leave normal
+    // logging in place.
     debug_log.init(alloc, io, init.environ_map, session.info.id);
 
     const is_resume = cli_flags.resume_kind != .none and session.info.message_count > 0;
@@ -341,7 +338,7 @@ pub fn main(init: std.process.Init) !void {
     // Bootstrap luarocks against the Lua runtime's lua_State — same
     // pipeline as `panto lua` and `panto bootstrap`. After this,
     // `require("luarocks.*")` works and any pinned batteries from the
-    // manifest are installed under $PANTO_HOME.
+    // manifest are installed under the panto data home.
     const luarocks_rt = try luarocks_runtime.bootstrap(
         alloc,
         io,
@@ -352,7 +349,7 @@ pub fn main(init: std.process.Init) !void {
     defer luarocks_rt.deinit();
 
     // Source the system prompt now that the base agent tree has been
-    // staged to `$PANTO_HOME/agent` (the bootstrap above writes the
+    // staged to `<data home>/agent` (the bootstrap above writes the
     // bundled `SYSTEM.md` there). The prompt is sourced by convention
     // from SYSTEM.md / APPEND_SYSTEM.md across the base/user/project
     // layers; the base layer is `luarocks_rt.layout.agent_dir`.
@@ -392,7 +389,7 @@ pub fn main(init: std.process.Init) !void {
     try rt.installScheduler();
 
     // Discover Lua extensions across three layers — base
-    // ($PANTO_HOME/agent), user ($XDG_CONFIG_HOME/panto or
+    // (<data home>/agent), user ($XDG_CONFIG_HOME/panto or
     // $HOME/.config/panto), and project (./.panto). Project shadows
     // user shadows base; tool-name collisions across surviving
     // entries abort startup.