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![Junio C Hamano](/assets/img/avatar_default.png)
Unfortunate people may have to use $GIT_DIR/config edited on DOSsy machine on UNIXy machine. Ignore '\r' immediately followed by '\n'. Signed-off-by: Junio C Hamano <junkio@cox.net>
245 lines
3.9 KiB
C
245 lines
3.9 KiB
C
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#include "cache.h"
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#define MAXNAME (256)
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static FILE *config_file;
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static int config_linenr;
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static int get_next_char(void)
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{
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int c;
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FILE *f;
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c = '\n';
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if ((f = config_file) != NULL) {
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c = fgetc(f);
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if (c == '\r') {
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/* DOS like systems */
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c = fgetc(f);
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if (c != '\n') {
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ungetc(c, f);
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c = '\r';
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}
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}
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if (c == '\n')
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config_linenr++;
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if (c == EOF) {
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config_file = NULL;
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c = '\n';
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}
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}
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return c;
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}
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static char *parse_value(void)
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{
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static char value[1024];
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int quote = 0, comment = 0, len = 0, space = 0;
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for (;;) {
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int c = get_next_char();
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if (len >= sizeof(value))
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return NULL;
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if (c == '\n') {
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if (quote)
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return NULL;
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value[len] = 0;
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return value;
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}
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if (comment)
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continue;
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if (isspace(c) && !quote) {
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space = 1;
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continue;
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}
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if (space) {
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if (len)
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value[len++] = ' ';
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space = 0;
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}
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if (c == '\\') {
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c = get_next_char();
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switch (c) {
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case '\n':
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continue;
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case 't':
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c = '\t';
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break;
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case 'b':
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c = '\b';
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break;
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case 'n':
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c = '\n';
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break;
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/* Some characters escape as themselves */
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case '\\': case '"':
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break;
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/* Reject unknown escape sequences */
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default:
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return NULL;
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}
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value[len++] = c;
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continue;
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}
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if (c == '"') {
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quote = 1-quote;
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continue;
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}
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if (!quote) {
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if (c == ';' || c == '#') {
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comment = 1;
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continue;
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}
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}
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value[len++] = c;
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}
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}
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static int get_value(config_fn_t fn, char *name, unsigned int len)
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{
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int c;
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char *value;
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/* Get the full name */
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for (;;) {
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c = get_next_char();
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if (c == EOF)
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break;
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if (!isalnum(c))
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break;
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name[len++] = tolower(c);
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if (len >= MAXNAME)
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return -1;
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}
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name[len] = 0;
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while (c == ' ' || c == '\t')
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c = get_next_char();
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value = NULL;
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if (c != '\n') {
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if (c != '=')
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return -1;
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value = parse_value();
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if (!value)
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return -1;
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}
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return fn(name, value);
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}
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static int get_base_var(char *name)
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{
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int baselen = 0;
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for (;;) {
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int c = get_next_char();
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if (c == EOF)
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return -1;
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if (c == ']')
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return baselen;
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if (!isalnum(c))
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return -1;
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if (baselen > MAXNAME / 2)
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return -1;
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name[baselen++] = tolower(c);
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}
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}
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static int git_parse_file(config_fn_t fn)
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{
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int comment = 0;
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int baselen = 0;
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static char var[MAXNAME];
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for (;;) {
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int c = get_next_char();
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if (c == '\n') {
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/* EOF? */
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if (!config_file)
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return 0;
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comment = 0;
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continue;
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}
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if (comment || isspace(c))
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continue;
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if (c == '#' || c == ';') {
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comment = 1;
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continue;
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}
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if (c == '[') {
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baselen = get_base_var(var);
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if (baselen <= 0)
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break;
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var[baselen++] = '.';
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var[baselen] = 0;
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continue;
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}
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if (!isalpha(c))
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break;
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var[baselen] = tolower(c);
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if (get_value(fn, var, baselen+1) < 0)
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break;
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}
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die("bad config file line %d", config_linenr);
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}
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int git_config_int(const char *name, const char *value)
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{
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if (value && *value) {
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char *end;
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int val = strtol(value, &end, 0);
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if (!*end)
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return val;
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}
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die("bad config value for '%s'", name);
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}
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int git_config_bool(const char *name, const char *value)
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{
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if (!value)
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return 1;
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if (!*value)
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return 0;
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if (!strcasecmp(value, "true"))
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return 1;
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if (!strcasecmp(value, "false"))
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return 0;
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return git_config_int(name, value) != 0;
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}
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int git_default_config(const char *var, const char *value)
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{
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/* This needs a better name */
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if (!strcmp(var, "core.filemode")) {
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trust_executable_bit = git_config_bool(var, value);
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return 0;
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}
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if (!strcmp(var, "user.name")) {
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strncpy(git_default_name, value, sizeof(git_default_name));
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return 0;
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}
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if (!strcmp(var, "user.email")) {
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strncpy(git_default_email, value, sizeof(git_default_email));
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return 0;
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}
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/* Add other config variables here.. */
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return 0;
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}
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int git_config(config_fn_t fn)
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{
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int ret;
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FILE *f = fopen(git_path("config"), "r");
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ret = -1;
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if (f) {
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config_file = f;
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config_linenr = 1;
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ret = git_parse_file(fn);
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fclose(f);
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}
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return ret;
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}
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