1/* Part of SWI-Prolog 2 3 Author: Jan Wielemaker 4 E-mail: J.Wielemaker@vu.nl 5 WWW: http://www.swi-prolog.org 6 Copyright (c) 2003-2020, University of Amsterdam 7 VU University Amsterdam 8 CWI, Amsterdam 9 All rights reserved. 10 11 Redistribution and use in source and binary forms, with or without 12 modification, are permitted provided that the following conditions 13 are met: 14 15 1. Redistributions of source code must retain the above copyright 16 notice, this list of conditions and the following disclaimer. 17 18 2. Redistributions in binary form must reproduce the above copyright 19 notice, this list of conditions and the following disclaimer in 20 the documentation and/or other materials provided with the 21 distribution. 22 23 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 24 "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 25 LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 26 FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 27 COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 28 INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 29 BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 30 LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER 31 CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 33 ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 34 POSSIBILITY OF SUCH DAMAGE. 35*/ 36 37:- module(make, 38 [ make/0 39 ]). 40:- autoload(library(apply),[maplist/2]). 41:- autoload(library(check),[list_undefined/0,list_void_declarations/0]). 42:- autoload(library(debug),[debug/3]). 43:- autoload(library(lists),[list_to_set/2,member/2]). 44:- autoload(library(option),[merge_options/3]). 45 46 47:- set_prolog_flag(generate_debug_info, false).
60:- multifile
61 prolog:make_hook/2.
make_hook(before, Files)
make_hook(after, Files)
The hooks are called with an empty list if no files need reloading.
78make :- 79 notrace(make_no_trace). 80 81make_no_trace :- 82 '$update_library_index', 83 findall(File, modified_file(File), Reload0), 84 list_to_set(Reload0, Reload), 85 ( prolog:make_hook(before, Reload) 86 -> true 87 ; true 88 ), 89 print_message(silent, make(reload(Reload))), 90 maplist(reload_file, Reload), 91 print_message(silent, make(done(Reload))), 92 ( prolog:make_hook(after, Reload) 93 -> true 94 ; list_undefined, 95 list_void_declarations 96 ).
(*) A file is considered modified if the modification time of the file is at least 1ms later that when it was loaded. The 1ms relaxed matching is used to compensate for inconsistent float handling and possible timing jitter.
109modified_file(File) :- 110 source_file_property(Source, modified(Time)), 111 \+ source_file_property(Source, included_in(_,_)), 112 Time > 0.0, % See source_file/1 113 ( source_file_property(Source, derived_from(File, LoadTime)) 114 -> true 115 ; File = Source, 116 LoadTime = Time 117 ), 118 ( catch(time_file(File, Modified), _, fail), 119 Modified - LoadTime > 0.001 % (*) 120 -> true 121 ; file_includes(Source, Included, IncLoadTime, [Source]), 122 catch(time_file(Included, Modified), _, fail), 123 Modified - IncLoadTime > 0.001 % (*) 124 -> true 125 ). 126 127file_includes(Source, Included, IncLoadTime, Seen) :- 128 source_file_property(Source, includes(Included0, IncLoadTime0)), 129 \+ memberchk(Included0, Seen), 130 ( Included = Included0, 131 IncLoadTime = IncLoadTime0 132 ; file_includes(Included0, Included, IncLoadTime, [Included0|Seen]) 133 ).
142:- public reload_file/1. % Used by PDT 143 144reload_file(File) :- 145 source_base_name(File, Compile), 146 findall(M-Opts, 147 source_file_property(File, load_context(M, _, Opts)), 148 Modules), 149 ( Modules = [First-OptsFirst|Rest] 150 -> Extra = [ silent(false), 151 register(false) 152 ], 153 merge_options([if(true)|Extra], OptsFirst, OFirst), 154 debug(make, 'Make: First load ~q', [load_files(First:Compile, OFirst)]), 155 load_files(First:Compile, OFirst), 156 forall(member(Context-Opts, Rest), 157 ( merge_options([if(not_loaded)|Extra], Opts, O), 158 debug(make, 'Make: re-import: ~q', 159 [load_files(Context:Compile, O)]), 160 load_files(Context:Compile, O) 161 )) 162 ; load_files(user:Compile) 163 ). 164 165source_base_name(File, Compile) :- 166 file_name_extension(Compile, Ext, File), 167 user:prolog_file_type(Ext, prolog), 168 !. 169source_base_name(File, File).
list_undefined([scan(local)]).
The hook can be used to change program validation, stop or restart services, etc.
Reload modified source files
This module provides the SWI-Prolog `make' facility that synchronises Prolog internal database after loaded files have been edited.