addUserInputOption

pub fn addUserInputOption(b: *Build, name_raw: []const u8, value_raw: []const u8) error

File

Code

pub fn addUserInputOption(b: *Build, name_raw: []const u8, value_raw: []const u8) error{OutOfMemory}!bool {
    const graph = b.graph;
    const arena = graph.arena;
    const name = graph.dupeString(name_raw);
    const value = graph.dupeString(value_raw);
    const gop = try b.user_input_options.getOrPut(name);
    if (!gop.found_existing) {
        gop.value_ptr.* = UserInputOption{
            .name = name,
            .value = .{ .scalar = value },
            .used = false,
        };
        return false;
    }

    // option already exists
    switch (gop.value_ptr.value) {
        .scalar => |s| {
            // turn it into a list
            var list = std.array_list.Managed([]const u8).init(arena);
            try list.append(s);
            try list.append(value);
            try b.user_input_options.put(name, .{
                .name = name,
                .value = .{ .list = list },
                .used = false,
            });
        },
        .list => |*list| {
            // append to the list
            try list.append(value);
            try b.user_input_options.put(name, .{
                .name = name,
                .value = .{ .list = list.* },
                .used = false,
            });
        },
        .flag => {
            log.warn("option '-D{s}={s}' conflicts with flag '-D{s}'.", .{ name, value, name });
            return true;
        },
        .map => |*map| {
            _ = map;
            log.warn("TODO maps as command line arguments is not implemented yet.", .{});
            return true;
        },
        .lazy_path, .lazy_path_list => {
            log.warn("the lazy path value type isn't added from the CLI, but somehow {q} is a .{f}", .{
                name, std.zig.fmtId(@tagName(gop.value_ptr.value)),
            });
            return true;
        },
    }
    return false;
}