mirror of
https://github.com/git/git
synced 2024-11-05 18:59:29 +00:00
88 lines
2 KiB
C
88 lines
2 KiB
C
|
#include "git-compat-util.h"
|
||
|
|
#include "environment.h"
|
||
|
|
#include "statinfo.h"
|
||
|
|
|
||
|
|
void fill_stat_data(struct stat_data *sd, struct stat *st)
|
||
|
|
{
|
||
|
|
sd->sd_ctime.sec = (unsigned int)st->st_ctime;
|
||
|
|
sd->sd_mtime.sec = (unsigned int)st->st_mtime;
|
||
|
|
sd->sd_ctime.nsec = ST_CTIME_NSEC(*st);
|
||
|
|
sd->sd_mtime.nsec = ST_MTIME_NSEC(*st);
|
||
|
|
sd->sd_dev = st->st_dev;
|
||
|
|
sd->sd_ino = st->st_ino;
|
||
|
|
sd->sd_uid = st->st_uid;
|
||
|
|
sd->sd_gid = st->st_gid;
|
||
|
|
sd->sd_size = st->st_size;
|
||
|
|
}
|
||
|
|
|
||
|
|
int match_stat_data(const struct stat_data *sd, struct stat *st)
|
||
|
|
{
|
||
|
|
int changed = 0;
|
||
|
|
|
||
|
|
if (sd->sd_mtime.sec != (unsigned int)st->st_mtime)
|
||
|
|
changed |= MTIME_CHANGED;
|
||
|
|
if (trust_ctime && check_stat &&
|
||
|
|
sd->sd_ctime.sec != (unsigned int)st->st_ctime)
|
||
|
|
changed |= CTIME_CHANGED;
|
||
|
|
|
||
|
|
#ifdef USE_NSEC
|
||
|
|
if (check_stat && sd->sd_mtime.nsec != ST_MTIME_NSEC(*st))
|
||
|
|
changed |= MTIME_CHANGED;
|
||
|
|
if (trust_ctime && check_stat &&
|
||
|
|
sd->sd_ctime.nsec != ST_CTIME_NSEC(*st))
|
||
|
|
changed |= CTIME_CHANGED;
|
||
|
|
#endif
|
||
|
|
|
||
|
|
if (check_stat) {
|
||
|
|
if (sd->sd_uid != (unsigned int) st->st_uid ||
|
||
|
|
sd->sd_gid != (unsigned int) st->st_gid)
|
||
|
|
changed |= OWNER_CHANGED;
|
||
|
|
if (sd->sd_ino != (unsigned int) st->st_ino)
|
||
|
|
changed |= INODE_CHANGED;
|
||
|
|
}
|
||
|
|
|
||
|
|
#ifdef USE_STDEV
|
||
|
|
/*
|
||
|
|
* st_dev breaks on network filesystems where different
|
||
|
|
* clients will have different views of what "device"
|
||
|
|
* the filesystem is on
|
||
|
|
*/
|
||
|
|
if (check_stat && sd->sd_dev != (unsigned int) st->st_dev)
|
||
|
|
changed |= INODE_CHANGED;
|
||
|
|
#endif
|
||
|
|
|
||
|
|
if (sd->sd_size != (unsigned int) st->st_size)
|
||
|
|
changed |= DATA_CHANGED;
|
||
|
|
|
||
|
|
return changed;
|
||
|
|
}
|
||
|
|
|
||
|
|
void stat_validity_clear(struct stat_validity *sv)
|
||
|
|
{
|
||
|
|
FREE_AND_NULL(sv->sd);
|
||
|
|
}
|
||
|
|
|
||
|
|
int stat_validity_check(struct stat_validity *sv, const char *path)
|
||
|
|
{
|
||
|
|
struct stat st;
|
||
|
|
|
||
|
|
if (stat(path, &st) < 0)
|
||
|
|
return sv->sd == NULL;
|
||
|
|
if (!sv->sd)
|
||
|
|
return 0;
|
||
|
|
return S_ISREG(st.st_mode) && !match_stat_data(sv->sd, &st);
|
||
|
|
}
|
||
|
|
|
||
|
|
void stat_validity_update(struct stat_validity *sv, int fd)
|
||
|
|
{
|
||
|
|
struct stat st;
|
||
|
|
|
||
|
|
if (fstat(fd, &st) < 0 || !S_ISREG(st.st_mode))
|
||
|
|
stat_validity_clear(sv);
|
||
|
|
else {
|
||
|
|
if (!sv->sd)
|
||
|
|
CALLOC_ARRAY(sv->sd, 1);
|
||
|
|
fill_stat_data(sv->sd, &st);
|
||
|
|
}
|
||
|
|
}
|