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1 | (* HCoop Domtool (http://hcoop.sourceforge.net/) |
2 | * Copyright (c) 2006, Adam Chlipala |
3 | * |
4 | * This program is free software; you can redistribute it and/or |
5 | * modify it under the terms of the GNU General Public License |
6 | * as published by the Free Software Foundation; either version 2 |
7 | * of the License, or (at your option) any later version. |
8 | * |
9 | * This program is distributed in the hope that it will be useful, |
10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
12 | * GNU General Public License for more details. |
13 | * |
14 | * You should have received a copy of the GNU General Public License |
15 | * along with this program; if not, write to the Free Software |
16 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
17 | *) |
18 | |
19 | (* Code for receiving and executing configuration files *) |
20 | |
21 | structure Slave :> SLAVE = struct |
22 | |
23 | datatype file_action = |
24 | Add |
25 | | Delete |
26 | | Modify |
27 | |
28 | type file_status = {action : file_action, |
29 | domain : string, |
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30 | dir : string, |
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31 | file : string} |
32 | |
33 | val fileHandler = ref (fn _ : file_status => ()) |
34 | val preHandler = ref (fn () => ()) |
35 | val postHandler = ref (fn () => ()) |
36 | |
37 | fun registerFileHandler handler = |
38 | let |
39 | val old = !fileHandler |
40 | in |
41 | fileHandler := (fn x => (handler x; old x)) |
42 | end |
43 | |
44 | fun registerPreHandler handler = |
45 | let |
46 | val old = !preHandler |
47 | in |
48 | preHandler := (fn () => (handler (); old ())) |
49 | end |
50 | |
51 | fun registerPostHandler handler = |
52 | let |
53 | val old = !postHandler |
54 | in |
55 | postHandler := (fn () => (handler (); old ())) |
56 | end |
57 | |
58 | fun handleChanges fs = (!preHandler (); |
59 | app (!fileHandler) fs; |
60 | !postHandler ()) |
61 | |
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62 | fun shell ss = OS.Process.isSuccess (OS.Process.system (String.concat ss)) |
63 | |
64 | fun shellF (ss, msg) = |
65 | let |
66 | val s = String.concat ss |
67 | in |
68 | if OS.Process.isSuccess (OS.Process.system s) then |
69 | () |
70 | else |
71 | ErrorMsg.error NONE (msg s) |
72 | end |
73 | |
74 | fun concatTo p fname = |
75 | let |
76 | fun visitDir dname = |
77 | let |
78 | val dir = Posix.FileSys.opendir dname |
79 | |
80 | fun loop () = |
81 | case Posix.FileSys.readdir dir of |
82 | NONE => Posix.FileSys.closedir dir |
83 | | SOME fname' => |
84 | let |
85 | val path = OS.Path.joinDirFile {dir = dname, file = fname'} |
86 | in |
87 | if Posix.FileSys.ST.isDir (Posix.FileSys.stat path) then |
88 | visitDir path |
89 | else if p fname' then |
90 | shellF ([Config.cat, " ", path, " >>", fname], |
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91 | fn cl => "Error concatenating: " ^ cl) |
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92 | else |
93 | (); |
94 | loop () |
95 | end |
96 | in |
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97 | loop () |
98 | end |
99 | in |
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100 | TextIO.closeOut (TextIO.openOut fname); |
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101 | visitDir Config.resultRoot |
102 | end |
103 | |
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104 | fun enumerateTo p sep fname = |
105 | let |
106 | val outf = TextIO.openOut fname |
107 | |
108 | val first = ref true |
109 | val baseLen = length (String.fields (fn ch => ch = #"/") Config.resultRoot) |
110 | |
111 | fun visitDir dname = |
112 | let |
113 | val dir = Posix.FileSys.opendir dname |
114 | |
115 | fun loop () = |
116 | case Posix.FileSys.readdir dir of |
117 | NONE => Posix.FileSys.closedir dir |
118 | | SOME fname' => |
119 | let |
120 | val path = OS.Path.joinDirFile {dir = dname, file = fname'} |
121 | in |
122 | if Posix.FileSys.ST.isDir (Posix.FileSys.stat path) then |
123 | visitDir path |
124 | else if p fname' then |
125 | let |
126 | val toks = String.fields (fn ch => ch = #"/") dname |
127 | val toks = List.drop (toks, baseLen) |
128 | val dom = String.concatWith "." (rev toks) |
129 | in |
130 | if !first then |
131 | first := false |
132 | else |
133 | TextIO.output (outf, sep); |
134 | TextIO.output (outf, dom) |
135 | end |
136 | else |
137 | (); |
138 | loop () |
139 | end |
140 | in |
141 | loop () |
142 | end |
143 | in |
144 | visitDir Config.resultRoot; |
145 | TextIO.closeOut outf |
146 | end |
147 | |
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148 | end |