X-Git-Url: https://mattmccutchen.net/rsync/rsync.git/blobdiff_plain/ecc81fce17f2e32fbe33c0050693899ce4d6c3cf..6558854dbe14f62cb3713da897b55b9dbaac43eb:/generator.c

diff --git a/generator.c b/generator.c
index b576b138..b999ac85 100644
--- a/generator.c
+++ b/generator.c
@@ -42,6 +42,7 @@ extern int size_only;
 extern int io_timeout;
 extern int protocol_version;
 extern int always_checksum;
+extern char *partial_dir;
 extern char *compare_dest;
 extern int link_dest;
 extern int whole_file;
@@ -78,15 +79,6 @@ static int skip_file(char *fname, struct file_struct *file, STRUCT_STAT *st)
 	   of the file time to determine whether to sync */
 	if (always_checksum && S_ISREG(st->st_mode)) {
 		char sum[MD4_SUM_LENGTH];
-		char fnamecmpdest[MAXPATHLEN];
-
-		if (compare_dest != NULL) {
-			if (access(fname, 0) != 0) {
-				pathjoin(fnamecmpdest, sizeof fnamecmpdest,
-					 compare_dest, fname);
-				fname = fnamecmpdest;
-			}
-		}
 		file_checksum(fname,sum,st->st_size);
 		return memcmp(sum, file->u.sum, protocol_version < 21 ? 2
 							: MD4_SUM_LENGTH) == 0;
@@ -162,7 +154,6 @@ static void sum_sizes_sqroot(struct sum_struct *sum, uint64 len)
 			c >>= 1;
 		} while (c >= 8);	/* round to multiple of 8 */
 		blength = MAX(blength, BLOCK_SIZE);
-		blength = MIN(blength, MAX_MAP_SIZE);
 	}
 
 	if (protocol_version < 27) {
@@ -217,7 +208,7 @@ static void generate_and_send_sums(int fd, OFF_T len, int f_out)
 	sum_sizes_sqroot(&sum, len);
 
 	if (len > 0)
-		mapbuf = map_file(fd, len, sum.blength);
+		mapbuf = map_file(fd, len, MAX_MAP_SIZE, sum.blength);
 	else
 		mapbuf = NULL;
 
@@ -262,7 +253,7 @@ static void recv_generator(char *fname, struct file_struct *file, int i,
 {
 	int fd;
 	STRUCT_STAT st;
-	int statret;
+	int statret, stat_errno;
 	char *fnamecmp;
 	char fnamecmpbuf[MAXPATHLEN];
 
@@ -282,9 +273,16 @@ static void recv_generator(char *fname, struct file_struct *file, int i,
 		return;
 	}
 
-	statret = link_stat(fname, &st, keep_dirlinks && S_ISDIR(file->mode));
+	if (dry_run > 1) {
+		statret = -1;
+		stat_errno = ENOENT;
+	} else {
+		statret = link_stat(fname, &st,
+				    keep_dirlinks && S_ISDIR(file->mode));
+		stat_errno = errno;
+	}
 
-	if (only_existing && statret == -1 && errno == ENOENT) {
+	if (only_existing && statret == -1 && stat_errno == ENOENT) {
 		/* we only want to update existing files */
 		if (verbose > 1) {
 			rprintf(FINFO, "not creating new file \"%s\"\n",
@@ -422,57 +420,49 @@ static void recv_generator(char *fname, struct file_struct *file, int i,
 
 	if (statret == -1 && compare_dest != NULL) {
 		/* try the file at compare_dest instead */
-		int saveerrno = errno;
 		pathjoin(fnamecmpbuf, sizeof fnamecmpbuf, compare_dest, fname);
-		statret = link_stat(fnamecmpbuf, &st, 0);
-		if (!S_ISREG(st.st_mode))
-			statret = -1;
-		if (statret == -1)
-			errno = saveerrno;
+		if (link_stat(fnamecmpbuf, &st, 0) == 0
+		    && S_ISREG(st.st_mode)) {
 #if HAVE_LINK
-		else if (link_dest && !dry_run) {
-			if (do_link(fnamecmpbuf, fname) != 0) {
-				if (verbose > 0) {
-					rsyserr(FINFO, errno, "link %s => %s",
-						fnamecmpbuf, safe_fname(fname));
+			if (link_dest && !dry_run) {
+				if (do_link(fnamecmpbuf, fname) < 0) {
+					if (verbose) {
+						rsyserr(FINFO, errno,
+							"link %s => %s",
+							fnamecmpbuf,
+							safe_fname(fname));
+					}
+					fnamecmp = fnamecmpbuf;
 				}
-			}
-			fnamecmp = fnamecmpbuf;
-		}
+			} else
 #endif
-		else
-			fnamecmp = fnamecmpbuf;
+				fnamecmp = fnamecmpbuf;
+			statret = 0;
+		}
+	}
+
+	if (statret == 0 && !S_ISREG(st.st_mode)) {
+		if (delete_file(fname) != 0)
+			return;
+		statret = -1;
+		stat_errno = ENOENT;
 	}
 
 	if (statret == -1) {
 		if (preserve_hard_links && hard_link_check(file, HL_SKIP))
 			return;
-		if (errno == ENOENT) {
+		if (stat_errno == ENOENT) {
 			write_int(f_out,i);
 			if (!dry_run && !read_batch)
 				write_sum_head(f_out, NULL);
 		} else if (verbose > 1) {
-			rsyserr(FERROR, errno,
-				"recv_generator: failed to open %s",
+			rsyserr(FERROR, stat_errno,
+				"recv_generator: failed to stat %s",
 				full_fname(fname));
 		}
 		return;
 	}
 
-	if (!S_ISREG(st.st_mode)) {
-		if (delete_file(fname) != 0) {
-			return;
-		}
-
-		/* now pretend the file didn't exist */
-		if (preserve_hard_links && hard_link_check(file, HL_SKIP))
-			return;
-		write_int(f_out,i);
-		if (!dry_run && !read_batch)
-			write_sum_head(f_out, NULL);
-		return;
-	}
-
 	if (opt_ignore_existing && fnamecmp == fname) {
 		if (verbose > 1)
 			rprintf(FINFO, "%s exists\n", safe_fname(fname));
@@ -486,7 +476,7 @@ static void recv_generator(char *fname, struct file_struct *file, int i,
 		return;
 	}
 
-	if (skip_file(fname, file, &st)) {
+	if (skip_file(fnamecmp, file, &st)) {
 		if (fnamecmp == fname)
 			set_perms(fname, file, &st, PERMS_REPORT);
 		return;
@@ -503,6 +493,16 @@ static void recv_generator(char *fname, struct file_struct *file, int i,
 		return;
 	}
 
+	if (partial_dir) {
+		STRUCT_STAT st2;
+		char *partialptr = partial_dir_fname(fname);
+		if (partialptr && link_stat(partialptr, &st2, 0) == 0
+		    && S_ISREG(st2.st_mode)) {
+			st = st2;
+			fnamecmp = partialptr;
+		}
+	}
+
 	/* open the file */
 	fd = do_open(fnamecmp, O_RDONLY, 0);