#include <stdlib.h>
#include <unistd.h>
#include <stdio.h>
#define PATH_PREFIX "--cd="
char *path_cpoy(char *dst, const char *src, int len)
{
char c;
while (len--) {
c = *src;
if (c == ' ') {
*dst++ = '"';
do {
*dst++ = ' ';
src++;
} while (*src == ' ');
*dst++ = '"';
} else {
*dst++ = c;
src++;
}
}
return dst;
}
int main(int argc, char *argv[])
{
char cmd[1024];
char *p;
int len;
int size;
size = sizeof(cmd);
p = cmd;
// xx\xx\git-bash.exe "--cd=%v."
len = strlen(argv[0])-3;
p = path_cpoy(p, argv[0], len);
*p++ = 'b';
*p++ = 'a';
*p++ = 't';
*p++ = ' ';
*p = '\0';
size -= len + 3 + 5;
if (argc == 2) {
if (memcmp(argv[1], PATH_PREFIX, sizeof(PATH_PREFIX)-1)) {
fprintf(stderr, "only support \"--cd=path.\"\r\n");
goto RUN;
}
len = strlen(argv[1]);
if (argv[1][len-1] != '.') {
fprintf(stderr, "\"--cd=path.\" should endwith \".\"\r\n");
goto RUN;
}
len -= sizeof(PATH_PREFIX)-1;
if (len > size) {
fprintf(stderr, "the length of path if too long\r\n");
goto RUN;
}
p = path_cpoy(p, &argv[1][sizeof(PATH_PREFIX)-1], len);
*p = '\0';
}
RUN:
system(cmd);
return 0;
}
