1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
|
/*
* Authors:
* Ted Gould <ted@gould.cx>
*
* Copyright (C) 2004 Authors
*
* Released under GNU GPL, read the file 'COPYING' for more information
*/
extern "C" { // glib-2.4 needs this
#include <libintl.h>
}
#include <glibmm/i18n.h>
#include "config.h"
#include "path-prefix.h"
#include "dependency.h"
#include "db.h"
namespace Inkscape {
namespace Extension {
// These strings are for XML attribute comparisons and should not be translated
gchar const * Dependency::_type_str[] = {
"executable",
"file",
"extension",
"plugin",
};
// These strings are for XML attribute comparisons and should not be translated
gchar const * Dependency::_location_str[] = {
"path",
"extensions",
"absolute",
};
/**
\brief Create a dependency using an XML definition
\param in_repr XML definition of the dependency
This function mostly looks for the 'location' and 'type' attributes
and turns them into the enums of the same name. This makes things
a little bit easier to use later. Also, a pointer to the core
content is pulled out -- also to make things easier.
*/
Dependency::Dependency (Inkscape::XML::Node * in_repr)
{
_type = TYPE_FILE;
_location = LOCATION_PATH;
_repr = in_repr;
_string = NULL;
_description = NULL;
Inkscape::GC::anchor(_repr);
const gchar * location = _repr->attribute("location");
for (int i = 0; i < LOCATION_CNT && location != NULL; i++) {
if (!strcmp(location, _location_str[i])) {
_location = (location_t)i;
break;
}
}
const gchar * type = _repr->attribute("type");
for (int i = 0; i < TYPE_CNT && type != NULL; i++) {
if (!strcmp(type, _type_str[i])) {
_type = (type_t)i;
break;
}
}
_string = sp_repr_children(_repr)->content();
_description = _repr->attribute("description");
if (_description == NULL)
_description = _repr->attribute("_description");
return;
}
/**
\brief This depenency is not longer needed
Unreference the XML structure.
*/
Dependency::~Dependency (void)
{
Inkscape::GC::release(_repr);
}
/**
\brief Check if the dependency passes.
\return Whether or not the dependency passes.
This function depends largely on all of the enums. The first level
that is evaluted is the \c _type.
If the type is \c TYPE_EXTENSION then the id for the extension is
looked up in the database. If the extension is found, and it is
not deactivated, the dependency passes.
If the type is \c TYPE_PLUGIN then the path for the plugin is found
using the Glib::Module routines. When the path is found, then there
is a check to see if the file exists using the \c file_test function.
If the type is \c TYPE_EXECUTABLE or \c TYPE_FILE things are getting
even more interesting because now the \c _location variable is also
taken into account. First, the difference between the two is that
the file test for \c TYPE_EXECUTABLE also tests to make sure the
file is executable, besides checking that it exists.
If the \c _location is \c LOCATION_EXTENSIONS then the \c INKSCAPE_EXTENSIONDIR
is put on the front of the string with \c build_filename. Then the
appopriate filetest is run.
If the \c _location is \c LOCATION_ABSOLUTE then the file test is
run directly on the string.
If the \c _location is \c LOCATION_PATH or not specified then the
path is used to find the file. Each entry in the path is stepped
through, attached to the string, and then tested. If the file is
found then a TRUE is returned. If we get all the way through the
path then a FALSE is returned, the command could not be found.
*/
bool
Dependency::check (void) const
{
// std::cout << "Checking: " << *this << std::endl;
if (_string == NULL) return FALSE;
switch (_type) {
case TYPE_EXTENSION: {
Extension * myext = db.get(_string);
if (myext == NULL) return FALSE;
if (myext->deactivated()) return FALSE;
break;
}
case TYPE_PLUGIN: {
if (!Glib::Module::get_supported()) {
return FALSE;
}
std::string path = Glib::Module::build_path(INKSCAPE_PLUGINDIR, _string);
if (!Glib::file_test(path, Glib::FILE_TEST_EXISTS))
return FALSE;
break;
}
case TYPE_EXECUTABLE:
case TYPE_FILE: {
Glib::FileTest filetest = Glib::FILE_TEST_EXISTS;
if (_type == TYPE_EXECUTABLE) {
filetest |= Glib::FILE_TEST_IS_EXECUTABLE;
}
std::string location(_string);
switch (_location) {
case LOCATION_EXTENSIONS: {
for (unsigned int i=0; i<Inkscape::Extension::Extension::search_path.size(); i++) {
std::string temploc = Glib::build_filename(Inkscape::Extension::Extension::search_path[i], location);
if (Glib::file_test(temploc, filetest)) {
location = temploc;
break;
}
}
} /* PASS THROUGH!!! */
case LOCATION_ABSOLUTE: {
if (!Glib::file_test(location, filetest)) {
// std::cout << "Failing on location: " << location << std::endl;
return FALSE;
}
break;
}
/* The default case is to look in the path */
case LOCATION_PATH:
default: {
gchar * path = g_strdup(g_getenv("PATH"));
if (path == NULL) {
/* There is no `PATH' in the environment.
The default search path is the current directory */
path = g_strdup(G_SEARCHPATH_SEPARATOR_S);
}
gchar * orig_path = path;
for (; path != NULL;) {
gchar * local_path;
gchar * final_name;
local_path = path;
path = g_utf8_strchr(path, -1, G_SEARCHPATH_SEPARATOR);
/* Not sure whether this is UTF8 happy, but it would seem
like it considering that I'm searching (and finding)
the ':' character */
if (path != local_path && path != NULL) {
path[0] = '\0';
path++;
} else {
path = NULL;
}
if (local_path == '\0') {
final_name = g_strdup(_string);
} else {
final_name = g_build_filename(local_path, _string, NULL);
}
if (Glib::file_test(final_name, filetest)) {
g_free(final_name);
g_free(orig_path);
return TRUE;
}
g_free(final_name);
}
g_free(orig_path);
return FALSE; /* Reverse logic in this one */
break;
}
} /* switch _location */
break;
} /* TYPE_FILE, TYPE_EXECUTABLE */
default:
return FALSE;
} /* switch _type */
return TRUE;
}
/**
\brief Print out a dependency to a string.
*/
std::ostream &
operator<< (std::ostream &out_file, const Dependency & in_dep)
{
out_file << _("Dependency::") << '\n';
out_file << _(" type: ") << _(in_dep._type_str[in_dep._type]) << '\n';
out_file << _(" location: ") << _(in_dep._location_str[in_dep._location]) << '\n';
out_file << _(" string: ") << in_dep._string << '\n';
if (in_dep._description != NULL) {
out_file << _(" description: ") << _(in_dep._description) << '\n';
}
out_file << std::flush;
return out_file;
}
} } /* namespace Inkscape, Extension */
/*
Local Variables:
mode:c++
c-file-style:"stroustrup"
c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
indent-tabs-mode:nil
fill-column:99
End:
*/
// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4 :
|
