From dc5f28a3c341db7c241bba77ddc109c141072f27 Mon Sep 17 00:00:00 2001 From: Manoj Joseph Date: Wed, 8 Apr 2015 08:18:38 -0700 Subject: [PATCH] 5764 "zfs send -nv" directs output to stderr Reviewed by: Matthew Ahrens Reviewed by: Paul Dagnelie Reviewed by: Basil Crow Reviewed by: Steven Hartland Reviewed by: Bayard Bell Approved by: Dan McDonald --- usr/src/lib/libzfs/common/libzfs_sendrecv.c | 24 +++++++++++++++--------- usr/src/man/man1m/zfs.1m | 4 +++- 2 files changed, 18 insertions(+), 10 deletions(-) diff --git a/usr/src/lib/libzfs/common/libzfs_sendrecv.c b/usr/src/lib/libzfs/common/libzfs_sendrecv.c index c4944438aa..9a34fb32ea 100644 --- a/usr/src/lib/libzfs/common/libzfs_sendrecv.c +++ b/usr/src/lib/libzfs/common/libzfs_sendrecv.c @@ -806,7 +806,8 @@ typedef struct send_dump_data { char prevsnap[ZFS_MAXNAMELEN]; uint64_t prevsnap_obj; boolean_t seenfrom, seento, replicate, doall, fromorigin; - boolean_t verbose, dryrun, parsable, progress, embed_data, large_block; + boolean_t verbose, dryrun, parsable, progress, embed_data, std_out; + boolean_t large_block; int outfd; boolean_t err; nvlist_t *fss; @@ -1034,6 +1035,7 @@ dump_snapshot(zfs_handle_t *zhp, void *arg) int err; boolean_t isfromsnap, istosnap, fromorigin; boolean_t exclude = B_FALSE; + FILE *fout = sdd->std_out ? stdout : stderr; err = 0; thissnap = strchr(zhp->zfs_name, '@') + 1; @@ -1108,30 +1110,30 @@ dump_snapshot(zfs_handle_t *zhp, void *arg) if (sdd->parsable) { if (sdd->prevsnap[0] != '\0') { - (void) fprintf(stderr, "incremental\t%s\t%s", + (void) fprintf(fout, "incremental\t%s\t%s", sdd->prevsnap, zhp->zfs_name); } else { - (void) fprintf(stderr, "full\t%s", + (void) fprintf(fout, "full\t%s", zhp->zfs_name); } } else { - (void) fprintf(stderr, dgettext(TEXT_DOMAIN, + (void) fprintf(fout, dgettext(TEXT_DOMAIN, "send from @%s to %s"), sdd->prevsnap, zhp->zfs_name); } if (err == 0) { if (sdd->parsable) { - (void) fprintf(stderr, "\t%llu\n", + (void) fprintf(fout, "\t%llu\n", (longlong_t)size); } else { char buf[16]; zfs_nicenum(size, buf, sizeof (buf)); - (void) fprintf(stderr, dgettext(TEXT_DOMAIN, + (void) fprintf(fout, dgettext(TEXT_DOMAIN, " estimated size is %s\n"), buf); } sdd->size += size; } else { - (void) fprintf(stderr, "\n"); + (void) fprintf(fout, "\n"); } } @@ -1375,6 +1377,7 @@ zfs_send(zfs_handle_t *zhp, const char *fromsnap, const char *tosnap, int pipefd[2]; dedup_arg_t dda = { 0 }; int featureflags = 0; + FILE *fout; (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, "cannot send '%s'"), zhp->zfs_name); @@ -1509,6 +1512,9 @@ zfs_send(zfs_handle_t *zhp, const char *fromsnap, const char *tosnap, sdd.filter_cb_arg = cb_arg; if (debugnvp) sdd.debugnv = *debugnvp; + if (sdd.verbose && sdd.dryrun) + sdd.std_out = B_TRUE; + fout = sdd.std_out ? stdout : stderr; /* * Some flags require that we place user holds on the datasets that are @@ -1548,12 +1554,12 @@ zfs_send(zfs_handle_t *zhp, const char *fromsnap, const char *tosnap, if (flags->verbose) { if (flags->parsable) { - (void) fprintf(stderr, "size\t%llu\n", + (void) fprintf(fout, "size\t%llu\n", (longlong_t)sdd.size); } else { char buf[16]; zfs_nicenum(sdd.size, buf, sizeof (buf)); - (void) fprintf(stderr, dgettext(TEXT_DOMAIN, + (void) fprintf(fout, dgettext(TEXT_DOMAIN, "total estimated size is %s\n"), buf); } } diff --git a/usr/src/man/man1m/zfs.1m b/usr/src/man/man1m/zfs.1m index 2aa37cfdbe..cc3b70c310 100644 --- a/usr/src/man/man1m/zfs.1m +++ b/usr/src/man/man1m/zfs.1m @@ -3073,7 +3073,9 @@ Include the dataset's properties in the stream. This flag is implicit when .RS 4n Do a dry-run ("No-op") send. Do not generate any actual send data. This is useful in conjunction with the \fB-v\fR or \fB-P\fR flags to determine what -data will be sent. +data will be sent. In this case, the verbose output will be written to +standard output (contrast with a non-dry-run, where the stream is written +to standard output and the verbose output goes to standard error). .RE .sp -- 2.11.4.GIT