1 |
/* |
2 |
instrument.c - file and directory instrumentation routines |
3 |
Copyright (C) 2007, 2008 siliconforks.com |
4 |
|
5 |
This program is free software; you can redistribute it and/or modify |
6 |
it under the terms of the GNU General Public License as published by |
7 |
the Free Software Foundation; either version 2 of the License, or |
8 |
(at your option) any later version. |
9 |
|
10 |
This program is distributed in the hope that it will be useful, |
11 |
but WITHOUT ANY WARRANTY; without even the implied warranty of |
12 |
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
13 |
GNU General Public License for more details. |
14 |
|
15 |
You should have received a copy of the GNU General Public License along |
16 |
with this program; if not, write to the Free Software Foundation, Inc., |
17 |
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. |
18 |
*/ |
19 |
|
20 |
#include <config.h> |
21 |
|
22 |
#include "instrument.h" |
23 |
|
24 |
#include <assert.h> |
25 |
#include <errno.h> |
26 |
#include <string.h> |
27 |
|
28 |
#include <dirent.h> |
29 |
#include <sys/stat.h> |
30 |
#include <sys/types.h> |
31 |
|
32 |
#include "global.h" |
33 |
#include "instrument-js.h" |
34 |
#include "resource-manager.h" |
35 |
#include "util.h" |
36 |
|
37 |
static int g_verbose = 0; |
38 |
|
39 |
static int string_ends_with(const char * s, const char * suffix) { |
40 |
size_t length = strlen(s); |
41 |
size_t suffix_length = strlen(suffix); |
42 |
if (length < suffix_length) { |
43 |
return 0; |
44 |
} |
45 |
return strcasecmp(s + (length - suffix_length), suffix) == 0; |
46 |
} |
47 |
|
48 |
static enum FileType get_file_type(const char * file) { |
49 |
if (string_ends_with(file, ".js")) { |
50 |
return FILE_TYPE_JS; |
51 |
} |
52 |
else if (string_ends_with(file, ".html") || string_ends_with(file, ".htm")) { |
53 |
return FILE_TYPE_HTML; |
54 |
} |
55 |
else { |
56 |
return FILE_TYPE_OTHER; |
57 |
} |
58 |
} |
59 |
|
60 |
static void check_same_file(const char * file1, const char * file2) { |
61 |
if (is_same_file(file1, file2)) { |
62 |
fatal("source and destination are the same"); |
63 |
} |
64 |
} |
65 |
|
66 |
static void check_contains_file(const char * file1, const char * file2) { |
67 |
if (contains_file(file1, file2)) { |
68 |
fatal("%s contains %s", file1, file2); |
69 |
} |
70 |
} |
71 |
|
72 |
static void instrument_file(const char * source_file, const char * destination_file, const char * id, int instrumenting) { |
73 |
if (g_verbose) { |
74 |
printf("Instrumenting file %s\n", id); |
75 |
} |
76 |
|
77 |
/* check if they are the same */ |
78 |
char * canonical_source_file = make_canonical_path(source_file); |
79 |
char * canonical_destination_file = make_canonical_path(destination_file); |
80 |
check_same_file(canonical_source_file, canonical_destination_file); |
81 |
free(canonical_source_file); |
82 |
free(canonical_destination_file); |
83 |
|
84 |
if (instrumenting) { |
85 |
enum FileType file_type = get_file_type(source_file); |
86 |
switch (file_type) { |
87 |
case FILE_TYPE_OTHER: |
88 |
case FILE_TYPE_HTML: |
89 |
copy_file(source_file, destination_file); |
90 |
break; |
91 |
case FILE_TYPE_JS: |
92 |
{ |
93 |
FILE * input = xfopen(source_file, "r"); |
94 |
FILE * output = xfopen(destination_file, "w"); |
95 |
|
96 |
Stream * input_stream = Stream_new(0); |
97 |
Stream * output_stream = Stream_new(0); |
98 |
|
99 |
Stream_write_file_contents(input_stream, input); |
100 |
|
101 |
jscoverage_instrument_js(id, jscoverage_encoding, input_stream, output_stream); |
102 |
|
103 |
if (fwrite(output_stream->data, 1, output_stream->length, output) != output_stream->length) { |
104 |
fatal("cannot write to file: %s", destination_file); |
105 |
} |
106 |
|
107 |
Stream_delete(input_stream); |
108 |
Stream_delete(output_stream); |
109 |
|
110 |
fclose(input); |
111 |
fclose(output); |
112 |
} |
113 |
break; |
114 |
} |
115 |
} |
116 |
else { |
117 |
copy_file(source_file, destination_file); |
118 |
} |
119 |
} |
120 |
|
121 |
void jscoverage_instrument(const char * source, |
122 |
const char * destination, |
123 |
int verbose, |
124 |
char ** exclude, |
125 |
int num_exclude, |
126 |
char ** no_instrument, |
127 |
int num_no_instrument) |
128 |
{ |
129 |
assert(source != NULL); |
130 |
assert(destination != NULL); |
131 |
|
132 |
g_verbose = verbose; |
133 |
|
134 |
/* check if they are the same */ |
135 |
check_same_file(source, destination); |
136 |
|
137 |
/* check if source directory is an ancestor of destination directory */ |
138 |
check_contains_file(source, destination); |
139 |
|
140 |
/* check that the source exists and is a directory */ |
141 |
struct stat buf; |
142 |
xstat(source, &buf); |
143 |
if (! S_ISDIR(buf.st_mode)) { |
144 |
fatal("not a directory: %s", source); |
145 |
} |
146 |
|
147 |
/* if the destination directory exists, check that it is a jscoverage directory */ |
148 |
if (stat(destination, &buf) == 0) { |
149 |
/* it exists */ |
150 |
if (! S_ISDIR(buf.st_mode)) { |
151 |
fatal("not a directory: %s", destination); |
152 |
} |
153 |
if (! directory_is_empty(destination)) { |
154 |
char * jscoverage_html = make_path(destination, "jscoverage.html"); |
155 |
if (stat(jscoverage_html, &buf) == -1) { |
156 |
fatal("refusing to overwrite directory: %s", destination); |
157 |
} |
158 |
free(jscoverage_html); |
159 |
} |
160 |
} |
161 |
else if (errno == ENOENT) { |
162 |
xmkdir(destination); |
163 |
} |
164 |
else { |
165 |
fatal("cannot stat directory: %s", destination); |
166 |
} |
167 |
|
168 |
/* copy the resources */ |
169 |
jscoverage_copy_resources(destination); |
170 |
|
171 |
/* finally: copy the directory */ |
172 |
struct DirListEntry * list = make_recursive_dir_list(source); |
173 |
for (struct DirListEntry * p = list; p != NULL; p = p->next) { |
174 |
char * s = make_path(source, p->name); |
175 |
char * d = make_path(destination, p->name); |
176 |
|
177 |
/* check if it's on the exclude list */ |
178 |
for (int i = 0; i < num_exclude; i++) { |
179 |
char * x = make_path(source, exclude[i]); |
180 |
if (is_same_file(x, s) || contains_file(x, s)) { |
181 |
free(x); |
182 |
goto cleanup; |
183 |
} |
184 |
free(x); |
185 |
} |
186 |
|
187 |
char * dd = make_dirname(d); |
188 |
mkdirs(dd); |
189 |
free(dd); |
190 |
|
191 |
int instrument_this = 1; |
192 |
|
193 |
/* check if it's on the no-instrument list */ |
194 |
for (int i = 0; i < num_no_instrument; i++) { |
195 |
char * ni = make_path(source, no_instrument[i]); |
196 |
if (is_same_file(ni, s) || contains_file(ni, s)) { |
197 |
instrument_this = 0; |
198 |
} |
199 |
free(ni); |
200 |
} |
201 |
|
202 |
instrument_file(s, d, p->name, instrument_this); |
203 |
|
204 |
cleanup: |
205 |
free(s); |
206 |
free(d); |
207 |
} |
208 |
free_dir_list(list); |
209 |
} |