Sharing the uncrustify configuration I often use to someone interested on IRC.

uncrustify.cfg

tok_split_gte=false
utf8_byte=false
utf8_force=false
indent_cmt_with_tabs=false
indent_align_string=false
indent_braces=false
indent_braces_no_func=false
indent_braces_no_class=false
indent_braces_no_struct=false
indent_brace_parent=false
indent_namespace=false
indent_extern=false
indent_class=false
indent_class_colon=false
indent_else_if=false
indent_var_def_cont=false
indent_func_call_param=true
indent_func_def_param=false
indent_func_proto_param=false
indent_func_class_param=false
indent_func_ctor_var_param=false
indent_template_param=false
indent_func_param_double=false
indent_relative_single_line_comments=false
indent_col1_comment=false
indent_access_spec_body=false
indent_paren_nl=false
indent_comma_paren=false
indent_bool_paren=false
indent_first_bool_expr=false
indent_square_nl=false
indent_preserve_sql=false
indent_align_assign=true
sp_balance_nested_parens=false
align_keep_tabs=false
align_with_tabs=false
align_on_tabstop=false
align_func_params=false
align_same_func_call_params=false
align_var_def_colon=false
align_var_def_attribute=false
align_var_def_inline=false
align_right_cmt_mix=false
align_on_operator=false
align_mix_var_proto=false
align_single_line_func=false
align_single_line_brace=false
align_nl_cont=false
align_left_shift=true
align_oc_decl_colon=false
nl_collapse_empty_body=true
nl_assign_leave_one_liners=false
nl_class_leave_one_liners=false
nl_enum_leave_one_liners=false
nl_getset_leave_one_liners=false
nl_func_leave_one_liners=false
nl_if_leave_one_liners=false
nl_multi_line_cond=false
nl_multi_line_define=false
nl_before_case=false
nl_after_case=false
nl_after_return=false
nl_after_semicolon=false
nl_after_brace_open=false
nl_after_brace_open_cmt=false
nl_after_vbrace_open=false
nl_after_vbrace_open_empty=false
nl_after_brace_close=false
nl_after_vbrace_close=false
nl_define_macro=false
nl_squeeze_ifdef=false
nl_ds_struct_enum_cmt=false
nl_ds_struct_enum_close_brace=false
nl_create_if_one_liner=false
nl_create_for_one_liner=false
nl_create_while_one_liner=false
ls_for_split_full=false
ls_func_split_full=false
nl_after_multiline_comment=false
eat_blanks_after_open_brace=true
eat_blanks_before_close_brace=true
mod_full_brace_if_chain=false
mod_pawn_semicolon=false
mod_full_paren_if_bool=false
mod_remove_extra_semicolon=true
mod_sort_import=false
mod_sort_using=false
mod_sort_include=true
mod_move_case_break=false
mod_remove_empty_return=true
cmt_indent_multi=true
cmt_c_group=false
cmt_c_nl_start=false
cmt_c_nl_end=false
cmt_cpp_group=false
cmt_cpp_nl_start=false
cmt_cpp_nl_end=false
cmt_cpp_to_c=false
cmt_star_cont=false
cmt_multi_check_last=true
cmt_insert_before_preproc=false
pp_indent_at_level=true
pp_region_indent_code=false
pp_if_indent_code=false
pp_define_at_level=true
indent_columns=4
indent_switch_case=4
indent_case_brace=4
indent_paren_close=2
nl_end_of_file_min=1
nl_max=2
nl_after_func_body=2
pp_indent_count=4
indent_with_tabs=0
sp_pp_concat=force
sp_pp_stringify=remove
sp_after_comma=force
sp_type_func=remove
sp_func_proto_paren=remove
sp_func_def_paren=remove
sp_inside_fparens=remove
sp_inside_fparen=remove
sp_fparen_brace=force
sp_func_call_paren=remove
sp_cmt_cpp_start=force
sp_before_tr_emb_cmt=force
nl_start_of_file=remove
nl_end_of_file=force
nl_case_colon_brace=force
nl_func_type_name=remove
nl_func_proto_type_name=remove
nl_func_paren=remove
nl_func_def_paren=remove
nl_func_decl_start=remove
nl_func_def_start=remove
nl_func_decl_args=remove
nl_func_def_args=remove
nl_func_decl_end=remove
nl_func_def_end=remove
nl_func_decl_empty=remove
nl_func_def_empty=remove
nl_fdef_brace=remove
nl_return_expr=remove
mod_paren_on_return=remove
pp_indent=add