Add -vnP support to 'zfs send' for bookmarks

This leverages the functionality introduced in cf7684b to expose
verbose, dry-run and parsable 'zfs send' options for bookmarks.

Reviewed-by: Brian Behlendorf <[email protected]>
Signed-off-by: loli10K <[email protected]>
Closes #3666 
Closes #6601 

1 files changed, 38 insertions, 15 deletions

diff --git a/lib/libzfs/libzfs_sendrecv.c b/lib/libzfs/libzfs_sendrecv.c
index fddcd9c02..857abda3d 100644
--- a/lib/libzfs/libzfs_sendrecv.c
+++ b/lib/libzfs/libzfs_sendrecv.c
@@ -1242,16 +1242,14 @@ send_print_verbose(FILE *fout, const char *tosnap, const char *fromsnap,
 		}
 	}
 
-	if (size != 0) {
-		if (parsable) {
-			(void) fprintf(fout, "\t%llu",
-			    (longlong_t)size);
-		} else {
-			char buf[16];
-			zfs_nicebytes(size, buf, sizeof (buf));
-			(void) fprintf(fout, dgettext(TEXT_DOMAIN,
-			    " estimated size is %s"), buf);
-		}
+	if (parsable) {
+		(void) fprintf(fout, "\t%llu",
+		    (longlong_t)size);
+	} else if (size != 0) {
+		char buf[16];
+		zfs_nicebytes(size, buf, sizeof (buf));
+		(void) fprintf(fout, dgettext(TEXT_DOMAIN,
+		    " estimated size is %s"), buf);
 	}
 	(void) fprintf(fout, "\n");
 }
@@ -2113,17 +2111,42 @@ err_out:
 }
 
 int
-zfs_send_one(zfs_handle_t *zhp, const char *from, int fd,
-    enum lzc_send_flags flags)
+zfs_send_one(zfs_handle_t *zhp, const char *from, int fd, sendflags_t flags)
 {
-	int err;
+	int err = 0;
 	libzfs_handle_t *hdl = zhp->zfs_hdl;
-
+	enum lzc_send_flags lzc_flags = 0;
+	FILE *fout = (flags.verbose && flags.dryrun) ? stdout : stderr;
 	char errbuf[1024];
+
+	if (flags.largeblock)
+		lzc_flags |= LZC_SEND_FLAG_LARGE_BLOCK;
+	if (flags.embed_data)
+		lzc_flags |= LZC_SEND_FLAG_EMBED_DATA;
+	if (flags.compress)
+		lzc_flags |= LZC_SEND_FLAG_COMPRESS;
+	if (flags.raw)
+		lzc_flags |= LZC_SEND_FLAG_RAW;
+
+	if (flags.verbose) {
+		uint64_t size = 0;
+		err = lzc_send_space(zhp->zfs_name, from, lzc_flags, &size);
+		if (err == 0) {
+			send_print_verbose(fout, zhp->zfs_name, from, size,
+			    flags.parsable);
+		} else {
+			(void) fprintf(stderr, "Cannot estimate send size: "
+			    "%s\n", strerror(errno));
+		}
+	}
+
+	if (flags.dryrun)
+		return (err);
+
 	(void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN,
 	    "warning: cannot send '%s'"), zhp->zfs_name);
 
-	err = lzc_send(zhp->zfs_name, from, fd, flags);
+	err = lzc_send(zhp->zfs_name, from, fd, lzc_flags);
 	if (err != 0) {
 		switch (errno) {
 		case EXDEV: