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Commit | Line | Data |
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17712991 LT |
1 | |
2 | #include "cache.h" | |
3 | ||
4 | #define MAXNAME (256) | |
5 | ||
6 | static FILE *config_file; | |
7 | static int config_linenr; | |
8 | static int get_next_char(void) | |
9 | { | |
10 | int c; | |
11 | FILE *f; | |
12 | ||
13 | c = '\n'; | |
14 | if ((f = config_file) != NULL) { | |
15 | c = fgetc(f); | |
16 | if (c == '\n') | |
17 | config_linenr++; | |
18 | if (c == EOF) { | |
19 | config_file = NULL; | |
20 | c = '\n'; | |
21 | } | |
22 | } | |
23 | return c; | |
24 | } | |
25 | ||
26 | static char *parse_value(void) | |
27 | { | |
28 | static char value[1024]; | |
29 | int quote = 0, comment = 0, len = 0, space = 0; | |
30 | ||
31 | for (;;) { | |
32 | int c = get_next_char(); | |
33 | if (len >= sizeof(value)) | |
34 | return NULL; | |
35 | if (c == '\n') { | |
36 | if (quote) | |
37 | return NULL; | |
38 | value[len] = 0; | |
39 | return value; | |
40 | } | |
41 | if (comment) | |
42 | continue; | |
43 | if (isspace(c) && !quote) { | |
44 | space = 1; | |
45 | continue; | |
46 | } | |
47 | if (space) { | |
48 | if (len) | |
49 | value[len++] = ' '; | |
50 | space = 0; | |
51 | } | |
52 | if (c == '\\') { | |
53 | c = get_next_char(); | |
54 | switch (c) { | |
55 | case '\n': | |
56 | continue; | |
57 | case 't': | |
58 | c = '\t'; | |
59 | break; | |
60 | case 'b': | |
61 | c = '\b'; | |
62 | break; | |
63 | case 'n': | |
64 | c = '\n'; | |
65 | break; | |
5cbb401d LT |
66 | /* Some characters escape as themselves */ |
67 | case '\\': case '"': | |
68 | break; | |
69 | /* Reject unknown escape sequences */ | |
70 | default: | |
71 | return NULL; | |
17712991 LT |
72 | } |
73 | value[len++] = c; | |
74 | continue; | |
75 | } | |
76 | if (c == '"') { | |
77 | quote = 1-quote; | |
78 | continue; | |
79 | } | |
80 | if (!quote) { | |
81 | if (c == ';' || c == '#') { | |
82 | comment = 1; | |
83 | continue; | |
84 | } | |
85 | } | |
86 | value[len++] = c; | |
87 | } | |
88 | } | |
89 | ||
90 | static int get_value(config_fn_t fn, char *name, unsigned int len) | |
91 | { | |
92 | int c; | |
93 | char *value; | |
94 | ||
95 | /* Get the full name */ | |
96 | for (;;) { | |
97 | c = get_next_char(); | |
98 | if (c == EOF) | |
99 | break; | |
100 | if (!isalnum(c)) | |
101 | break; | |
102 | name[len++] = tolower(c); | |
103 | if (len >= MAXNAME) | |
104 | return -1; | |
105 | } | |
106 | name[len] = 0; | |
107 | while (c == ' ' || c == '\t') | |
108 | c = get_next_char(); | |
109 | ||
110 | value = NULL; | |
111 | if (c != '\n') { | |
112 | if (c != '=') | |
113 | return -1; | |
114 | value = parse_value(); | |
115 | if (!value) | |
116 | return -1; | |
117 | } | |
118 | return fn(name, value); | |
119 | } | |
120 | ||
121 | static int get_base_var(char *name) | |
122 | { | |
123 | int baselen = 0; | |
124 | ||
125 | for (;;) { | |
126 | int c = get_next_char(); | |
127 | if (c == EOF) | |
128 | return -1; | |
129 | if (c == ']') | |
130 | return baselen; | |
131 | if (!isalnum(c)) | |
132 | return -1; | |
133 | if (baselen > MAXNAME / 2) | |
134 | return -1; | |
135 | name[baselen++] = tolower(c); | |
136 | } | |
137 | } | |
138 | ||
139 | static int git_parse_file(config_fn_t fn) | |
140 | { | |
141 | int comment = 0; | |
142 | int baselen = 0; | |
143 | static char var[MAXNAME]; | |
144 | ||
145 | for (;;) { | |
146 | int c = get_next_char(); | |
147 | if (c == '\n') { | |
148 | /* EOF? */ | |
149 | if (!config_file) | |
150 | return 0; | |
151 | comment = 0; | |
152 | continue; | |
153 | } | |
154 | if (comment || isspace(c)) | |
155 | continue; | |
156 | if (c == '#' || c == ';') { | |
157 | comment = 1; | |
158 | continue; | |
159 | } | |
160 | if (c == '[') { | |
161 | baselen = get_base_var(var); | |
162 | if (baselen <= 0) | |
163 | break; | |
164 | var[baselen++] = '.'; | |
165 | var[baselen] = 0; | |
166 | continue; | |
167 | } | |
168 | if (!isalpha(c)) | |
169 | break; | |
128af9d1 | 170 | var[baselen] = tolower(c); |
17712991 LT |
171 | if (get_value(fn, var, baselen+1) < 0) |
172 | break; | |
173 | } | |
174 | die("bad config file line %d", config_linenr); | |
175 | } | |
176 | ||
177 | int git_config_int(const char *name, const char *value) | |
178 | { | |
179 | if (value && *value) { | |
180 | char *end; | |
181 | int val = strtol(value, &end, 0); | |
182 | if (!*end) | |
183 | return val; | |
184 | } | |
185 | die("bad config value for '%s'", name); | |
186 | } | |
187 | ||
188 | int git_config_bool(const char *name, const char *value) | |
189 | { | |
190 | if (!value) | |
191 | return 1; | |
192 | if (!*value) | |
193 | return 0; | |
194 | if (!strcasecmp(value, "true")) | |
195 | return 1; | |
196 | if (!strcasecmp(value, "false")) | |
197 | return 0; | |
198 | return git_config_int(name, value) != 0; | |
199 | } | |
200 | ||
201 | int git_default_config(const char *var, const char *value) | |
202 | { | |
203 | /* This needs a better name */ | |
204 | if (!strcmp(var, "core.filemode")) { | |
205 | trust_executable_bit = git_config_bool(var, value); | |
206 | return 0; | |
207 | } | |
208 | ||
e1b10391 LT |
209 | if (!strcmp(var, "user.name")) { |
210 | strncpy(git_default_name, value, sizeof(git_default_name)); | |
211 | return 0; | |
212 | } | |
213 | ||
214 | if (!strcmp(var, "user.email")) { | |
215 | strncpy(git_default_email, value, sizeof(git_default_email)); | |
216 | return 0; | |
217 | } | |
218 | ||
17712991 LT |
219 | /* Add other config variables here.. */ |
220 | return 0; | |
221 | } | |
222 | ||
223 | int git_config(config_fn_t fn) | |
224 | { | |
225 | int ret; | |
226 | FILE *f = fopen(git_path("config"), "r"); | |
227 | ||
228 | ret = -1; | |
229 | if (f) { | |
230 | config_file = f; | |
231 | config_linenr = 1; | |
232 | ret = git_parse_file(fn); | |
233 | fclose(f); | |
234 | } | |
235 | return ret; | |
236 | } |