/* Decrement date info in `*ptm', update the date string in `dst',
and check if the .../yyyy/mm directory (which is a part of `dst')
exists. If it does not exist, decrementDate() goes beyound and
tries to find an old .../yyyy/mm directory until Nyears back.
Returns 1 if it exists, otherwise returns 0.
This function is recursive.
*/
int
decrementDate (char* dst, char* date, struct tm* ptm)
{
char* dend; /* end of date string */
int mchange = 0; /* 1 if month changed */
int ychange = 0; /* 1 if year changed */
pathInfo rs; /* return status from doesPathExist() */
assert(dst);
assert(date);
assert(ptm);
if (ptm->tm_mday == 1) {
mchange = 1; /* month changed */
ptm->tm_mday = 31; /* reset mday. Ok to ignore short months */
if (ptm->tm_mon <= 0) { /* year changed */
ychange = 1;
--ptm->tm_year;
ptm->tm_mon = 11; /* reset month */
} else {
--ptm->tm_mon;
}
} else {
--ptm->tm_mday;
}
if (ychange) {
dend = date + 4; /* end ptr of .../yyyy */
assert(*dend == '/');
for (; ptm->tm_yday - ptm->tm_year <= Nyears; --ptm->tm_year) {
sprintf(date, "%04d", ptm->tm_year + 1900);
rs = doesPathExist(dst, NULL);
*dend = '/'; /* sprintf() terminates string */
if (rs) return 1;
}
return 0; /* no old .../yyyy directories */
}
if (mchange) {
dend = date + 7; /* end ptr of .../yyyy/mm */
assert(*dend == '/');
for (; ptm->tm_mon >= 0; --ptm->tm_mon) {
sprintf(date, "%04d/%02d", ptm->tm_year + 1900, ptm->tm_mon + 1);
rs = doesPathExist(dst, NULL);
*dend = '/'; /* sprintf() terminates string */
if (rs) return 1;
}
ptm->tm_mday = 1; /* reset date to 01/01/yyyy */
ptm->tm_mon = 0;
return decrementDate(dst, date, ptm);
} else {
return 1; /* no year/month change */
}
errExit(("should not happen"));
return 0;
}
static CFStringRef py2app_findPyLocation(CFArrayRef pyLocations) {
CFIndex i;
CFIndex cnt = py2app_CFArrayGetCount(pyLocations);
for (i = 0; i < cnt; i++) {
CFStringRef newLoc;
CFStringRef pyLocation = py2app_CFArrayGetValueAtIndex(pyLocations, i);
newLoc = pyStandardizePath(pyLocation);
if (!newLoc) {
newLoc = pyLocation;
py2app_CFRetain(newLoc);
}
if (doesPathExist(newLoc)) {
return newLoc;
}
if (newLoc) py2app_CFRelease(newLoc);
}
return NULL;
}
/* Print backup history of `dst'
*/
void
prHistory (char* dst, char* date, struct tm* ptm)
{
ino_t inode;
pathInfo rs; /* return status */
int len = 0;
char* prev;
char* pd; /* date ptr for `prev' */
assert(dst);
assert(date);
assert(ptm);
prev = malloc(strlen(dst));
if (!prev) {
errSysExit(("malloc(strlen(dst))"));
}
pd = prev + (date - dst);
strcpy(prev, dst);
inode = 0;
for (;;) {
sprintf(date, "%04d/%02d/%02d",
ptm->tm_year + 1900, ptm->tm_mon + 1, ptm->tm_mday);
if (len == 0) {
len = strlen(date);
}
*(date + len) = '/'; /* sprintf() tereminates string */
rs = doesPathExist(dst, &inode);
if (rs == INODE_CHANGE) {
printf("%s\n", prev);
}
if (rs != INODE_NOPATH) {
sprintf(pd, "%04d/%02d/%02d",
ptm->tm_year + 1900, ptm->tm_mon + 1, ptm->tm_mday);
*(pd + len) = '/'; /* sprintf() tereminates string */
}
if (!decrementDate(dst, date, ptm)) break;
}
if (inode) {
printf("%s\n", prev);
}
}
