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Check that file is unchanged before copying in propagator.

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This commit is contained in:
Klaas Freitag 2013-04-09 16:43:21 +02:00
parent 2a5c403d63
commit 7171da53e8
1 changed files with 24 additions and 0 deletions
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24
src/csync_propagate.c
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@ -122,6 +122,7 @@ static int _csync_push_file(CSYNC *ctx, csync_file_stat_t *st) {
csync_vio_handle_t *dfp = NULL;
csync_vio_file_stat_t *tstat = NULL;
csync_vio_file_stat_t *vst = NULL;
char errbuf[256] = {0};
char buf[MAX_XFER_BUF_SIZE] = {0};
@ -132,6 +133,7 @@ static int _csync_push_file(CSYNC *ctx, csync_file_stat_t *st) {
int rc = -1;
int count = 0;
int flags = 0;
bool do_pre_copy_stat = false; /* do an additional stat before actually copying */
rep_bak = ctx->replica;
@ -147,6 +149,7 @@ static int _csync_push_file(CSYNC *ctx, csync_file_stat_t *st) {
rc = -1;
goto out;
}
do_pre_copy_stat = true;
break;
case REMOTE_REPLICA:
srep = ctx->remote.type;
@ -164,6 +167,27 @@ static int _csync_push_file(CSYNC *ctx, csync_file_stat_t *st) {
break;
}
/* Check if the file is still untouched since the update run. */
if (do_pre_copy_stat) {
vst = csync_vio_file_stat_new();
if (csync_vio_stat(ctx, suri, vst) < 0) {
/* Pre copy stat failed */
rc = 1;
goto out;
} else {
/* Pre copy stat succeeded */
if (st->modtime != vst->mtime ||
st->size != vst->size) {
/* The size or modtime has changed. Skip this file copy for now. */
rc = 1; /* soft problem */
CSYNC_LOG(CSYNC_LOG_PRIORITY_DEBUG,
"Source file has changed since update run, SKIP it for now.");
goto out;
}
csync_vio_file_stat_destroy(vst);
}
}
/* Open the source file */
ctx->replica = srep;
flags = O_RDONLY|O_NOFOLLOW;