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agent/auth: parse models directly into arena

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Adrià Arrufat
2026-07-29 09:32:11 +02:00
parent 6070119ca8
commit c8e7761fce
1 changed files with 4 additions and 8 deletions
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12
src/agent/auth/models_dev.zig
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@@ -77,22 +77,18 @@ fn writeCache(arena: std.mem.Allocator, app_dir: []const u8, provider_id: []cons
/// Model-id keys of `catalog[provider_id].models`, filtered to tool-call-capable
/// models (the agent needs tools; this also drops embedding/image entries).
/// `ignore_unknown_fields` skips the rest of the metadata, so no Value tree is
/// built for the multi-MB payload. The parse runs in a scoped arena; the ids
/// are duped into `arena`.
/// built for the multi-MB payload, but the parsed id map accumulates in `arena`
/// until the caller deinits it. The ids may alias `catalog`.
fn parseProviderModels(arena: std.mem.Allocator, catalog: []const u8, provider_id: []const u8) ![]const []const u8 {
var parse_arena: std.heap.ArenaAllocator = .init(arena);
defer parse_arena.deinit();
const Model = struct { tool_call: bool = false };
const Provider = struct { models: std.json.ArrayHashMap(Model) = .{} };
const parsed = try std.json.parseFromSliceLeaky(std.json.ArrayHashMap(Provider), parse_arena.allocator(), catalog, .{ .ignore_unknown_fields = true });
const parsed = try std.json.parseFromSliceLeaky(std.json.ArrayHashMap(Provider), arena, catalog, .{ .ignore_unknown_fields = true });
const provider = parsed.map.get(provider_id) orelse return error.ProviderMissing;
var ids: std.ArrayList([]const u8) = .empty;
var it = provider.models.map.iterator();
while (it.next()) |entry| {
if (!entry.value_ptr.tool_call) continue;
try ids.append(arena, try arena.dupe(u8, entry.key_ptr.*));
if (entry.value_ptr.tool_call) try ids.append(arena, entry.key_ptr.*);
}
return ids.toOwnedSlice(arena);
}