Move libpanto projects to libpantograph dependencyHEADmain

Remove the in-repo libpanto sources and binding projects from pantograph.
Consume libpantograph through the Zig package URL at
code.tjp.lol/libpantograph.git, including the Lua module artifact used by
CLI extensions.

1 files changed, 0 insertions, 108 deletions

diff --git a/libpanto/src/null_store.zig b/libpanto/src/null_store.zig
deleted file mode 100644
index 1f3ab74..0000000
--- a/libpanto/src/null_store.zig
+++ /dev/null
@@ -1,108 +0,0 @@
-//! `NullStore`: a no-op `SessionStore` for embedders who opt out of
-//! persistence (and the default backing for an `Agent` constructed without
-//! a real store).
-//!
-//! Every append is dropped. `load` returns null. `list` returns an empty
-//! slice. `create`/`resolve`/`latest` mint/return empty handles. The struct
-//! holds an allocator (needed to satisfy the `SessionInfo` ownership
-//! contract for the empty handles it mints) and is trivially copyable.
-
-const std = @import("std");
-const Allocator = std.mem.Allocator;
-
-const session_store_mod = @import("session_store.zig");
-const conversation_mod = @import("conversation.zig");
-
-const SessionStore = session_store_mod.SessionStore;
-const Session = session_store_mod.Session;
-const SessionInfo = session_store_mod.SessionInfo;
-const PersistentMessage = session_store_mod.PersistentMessage;
-const Conversation = conversation_mod.Conversation;
-
-pub const NullStore = struct {
-    allocator: Allocator,
-
-    pub fn init(allocator: Allocator) NullStore {
-        return .{ .allocator = allocator };
-    }
-
-    fn emptyInfo(self: *NullStore) SessionInfo {
-        const a = self.allocator;
-        return .{
-            .id = a.dupe(u8, "") catch "",
-            .created = a.dupe(u8, "") catch "",
-            .modified = a.dupe(u8, "") catch "",
-            .message_count = 0,
-            .last_user_message = a.dupe(u8, "") catch "",
-            .api_style = .openai_chat,
-            .base_url = a.dupe(u8, "") catch "",
-            .model = a.dupe(u8, "") catch "",
-            .reasoning = .default,
-        };
-    }
-
-    fn createVT(ctx: *anyopaque) Session {
-        const self: *NullStore = @ptrCast(@alignCast(ctx));
-        return .{ .info = self.emptyInfo(), .store = self.store() };
-    }
-
-    fn listVT(ctx: *anyopaque) anyerror![]SessionInfo {
-        const self: *NullStore = @ptrCast(@alignCast(ctx));
-        return self.allocator.alloc(SessionInfo, 0);
-    }
-
-    fn freeSessionInfosVT(ctx: *anyopaque, infos: []SessionInfo) void {
-        const self: *NullStore = @ptrCast(@alignCast(ctx));
-        for (infos) |i| i.deinit(self.allocator);
-        self.allocator.free(infos);
-    }
-
-    fn resolveVT(_: *anyopaque, _: []const u8) anyerror!?Session {
-        return null;
-    }
-
-    fn latestVT(_: *anyopaque) anyerror!?Session {
-        return null;
-    }
-
-    fn loadVT(_: *anyopaque, _: []const u8) anyerror!?Conversation {
-        return null;
-    }
-
-    fn appendMessagesVT(_: *anyopaque, _: []const u8, _: []PersistentMessage) anyerror!void {
-        // Drop everything. The PersistentMessages borrow in-memory data
-        // owned by the caller (the conversation); nothing to free here.
-    }
-
-    const vtable: SessionStore.VTable = .{
-        .create = createVT,
-        .list = listVT,
-        .freeSessionInfos = freeSessionInfosVT,
-        .resolve = resolveVT,
-        .latest = latestVT,
-        .load = loadVT,
-        .appendMessages = appendMessagesVT,
-    };
-
-    /// Wrap this `NullStore` as a `SessionStore`. The handle borrows
-    /// `self`; `self` must outlive it.
-    pub fn store(self: *NullStore) SessionStore {
-        return .{ .ptr = self, .vtable = &vtable };
-    }
-};
-
-const testing = std.testing;
-
-test "NullStore: appends are dropped and load returns null" {
-    var ns = NullStore.init(testing.allocator);
-    const s = ns.store();
-
-    try s.appendMessages("sid", &.{});
-    try testing.expect((try s.load("sid")) == null);
-    try testing.expect((try s.resolve("sid")) == null);
-    try testing.expect((try s.latest()) == null);
-
-    const infos = try s.list();
-    defer s.freeSessionInfos(infos);
-    try testing.expectEqual(@as(usize, 0), infos.len);
-}