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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); | |
db2c075d JH |
16 | if (c == '\r') { |
17 | /* DOS like systems */ | |
18 | c = fgetc(f); | |
19 | if (c != '\n') { | |
20 | ungetc(c, f); | |
21 | c = '\r'; | |
22 | } | |
23 | } | |
17712991 LT |
24 | if (c == '\n') |
25 | config_linenr++; | |
26 | if (c == EOF) { | |
27 | config_file = NULL; | |
28 | c = '\n'; | |
29 | } | |
30 | } | |
31 | return c; | |
32 | } | |
33 | ||
34 | static char *parse_value(void) | |
35 | { | |
36 | static char value[1024]; | |
37 | int quote = 0, comment = 0, len = 0, space = 0; | |
38 | ||
39 | for (;;) { | |
40 | int c = get_next_char(); | |
41 | if (len >= sizeof(value)) | |
42 | return NULL; | |
43 | if (c == '\n') { | |
44 | if (quote) | |
45 | return NULL; | |
46 | value[len] = 0; | |
47 | return value; | |
48 | } | |
49 | if (comment) | |
50 | continue; | |
51 | if (isspace(c) && !quote) { | |
52 | space = 1; | |
53 | continue; | |
54 | } | |
55 | if (space) { | |
56 | if (len) | |
57 | value[len++] = ' '; | |
58 | space = 0; | |
59 | } | |
60 | if (c == '\\') { | |
61 | c = get_next_char(); | |
62 | switch (c) { | |
63 | case '\n': | |
64 | continue; | |
65 | case 't': | |
66 | c = '\t'; | |
67 | break; | |
68 | case 'b': | |
69 | c = '\b'; | |
70 | break; | |
71 | case 'n': | |
72 | c = '\n'; | |
73 | break; | |
5cbb401d LT |
74 | /* Some characters escape as themselves */ |
75 | case '\\': case '"': | |
76 | break; | |
77 | /* Reject unknown escape sequences */ | |
78 | default: | |
79 | return NULL; | |
17712991 LT |
80 | } |
81 | value[len++] = c; | |
82 | continue; | |
83 | } | |
84 | if (c == '"') { | |
85 | quote = 1-quote; | |
86 | continue; | |
87 | } | |
88 | if (!quote) { | |
89 | if (c == ';' || c == '#') { | |
90 | comment = 1; | |
91 | continue; | |
92 | } | |
93 | } | |
94 | value[len++] = c; | |
95 | } | |
96 | } | |
97 | ||
98 | static int get_value(config_fn_t fn, char *name, unsigned int len) | |
99 | { | |
100 | int c; | |
101 | char *value; | |
102 | ||
103 | /* Get the full name */ | |
104 | for (;;) { | |
105 | c = get_next_char(); | |
106 | if (c == EOF) | |
107 | break; | |
108 | if (!isalnum(c)) | |
109 | break; | |
110 | name[len++] = tolower(c); | |
111 | if (len >= MAXNAME) | |
112 | return -1; | |
113 | } | |
114 | name[len] = 0; | |
115 | while (c == ' ' || c == '\t') | |
116 | c = get_next_char(); | |
117 | ||
118 | value = NULL; | |
119 | if (c != '\n') { | |
120 | if (c != '=') | |
121 | return -1; | |
122 | value = parse_value(); | |
123 | if (!value) | |
124 | return -1; | |
125 | } | |
126 | return fn(name, value); | |
127 | } | |
128 | ||
129 | static int get_base_var(char *name) | |
130 | { | |
131 | int baselen = 0; | |
132 | ||
133 | for (;;) { | |
134 | int c = get_next_char(); | |
135 | if (c == EOF) | |
136 | return -1; | |
137 | if (c == ']') | |
138 | return baselen; | |
139 | if (!isalnum(c)) | |
140 | return -1; | |
141 | if (baselen > MAXNAME / 2) | |
142 | return -1; | |
143 | name[baselen++] = tolower(c); | |
144 | } | |
145 | } | |
146 | ||
147 | static int git_parse_file(config_fn_t fn) | |
148 | { | |
149 | int comment = 0; | |
150 | int baselen = 0; | |
151 | static char var[MAXNAME]; | |
152 | ||
153 | for (;;) { | |
154 | int c = get_next_char(); | |
155 | if (c == '\n') { | |
156 | /* EOF? */ | |
157 | if (!config_file) | |
158 | return 0; | |
159 | comment = 0; | |
160 | continue; | |
161 | } | |
162 | if (comment || isspace(c)) | |
163 | continue; | |
164 | if (c == '#' || c == ';') { | |
165 | comment = 1; | |
166 | continue; | |
167 | } | |
168 | if (c == '[') { | |
169 | baselen = get_base_var(var); | |
170 | if (baselen <= 0) | |
171 | break; | |
172 | var[baselen++] = '.'; | |
173 | var[baselen] = 0; | |
174 | continue; | |
175 | } | |
176 | if (!isalpha(c)) | |
177 | break; | |
128af9d1 | 178 | var[baselen] = tolower(c); |
17712991 LT |
179 | if (get_value(fn, var, baselen+1) < 0) |
180 | break; | |
181 | } | |
182 | die("bad config file line %d", config_linenr); | |
183 | } | |
184 | ||
185 | int git_config_int(const char *name, const char *value) | |
186 | { | |
187 | if (value && *value) { | |
188 | char *end; | |
189 | int val = strtol(value, &end, 0); | |
190 | if (!*end) | |
191 | return val; | |
192 | } | |
193 | die("bad config value for '%s'", name); | |
194 | } | |
195 | ||
196 | int git_config_bool(const char *name, const char *value) | |
197 | { | |
198 | if (!value) | |
199 | return 1; | |
200 | if (!*value) | |
201 | return 0; | |
202 | if (!strcasecmp(value, "true")) | |
203 | return 1; | |
204 | if (!strcasecmp(value, "false")) | |
205 | return 0; | |
206 | return git_config_int(name, value) != 0; | |
207 | } | |
208 | ||
209 | int git_default_config(const char *var, const char *value) | |
210 | { | |
211 | /* This needs a better name */ | |
212 | if (!strcmp(var, "core.filemode")) { | |
213 | trust_executable_bit = git_config_bool(var, value); | |
214 | return 0; | |
215 | } | |
216 | ||
f8348be3 JS |
217 | if (!strcmp(var, "core.symrefsonly")) { |
218 | only_use_symrefs = git_config_bool(var, value); | |
219 | return 0; | |
220 | } | |
221 | ||
e1b10391 LT |
222 | if (!strcmp(var, "user.name")) { |
223 | strncpy(git_default_name, value, sizeof(git_default_name)); | |
224 | return 0; | |
225 | } | |
226 | ||
227 | if (!strcmp(var, "user.email")) { | |
228 | strncpy(git_default_email, value, sizeof(git_default_email)); | |
229 | return 0; | |
230 | } | |
231 | ||
3299c6f6 JH |
232 | if (!strcmp(var, "diff.renamelimit")) { |
233 | diff_rename_limit_default = git_config_int(var, value); | |
234 | return 0; | |
235 | } | |
236 | ||
17712991 LT |
237 | /* Add other config variables here.. */ |
238 | return 0; | |
239 | } | |
240 | ||
241 | int git_config(config_fn_t fn) | |
242 | { | |
243 | int ret; | |
244 | FILE *f = fopen(git_path("config"), "r"); | |
245 | ||
246 | ret = -1; | |
247 | if (f) { | |
248 | config_file = f; | |
249 | config_linenr = 1; | |
250 | ret = git_parse_file(fn); | |
251 | fclose(f); | |
252 | } | |
253 | return ret; | |
254 | } |