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qemu-img: Add progress output for amend 

Now that bdrv_amend_options() supports a status callback, use it to
display a progress report.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Benoît Canet <benoit.canet@nodalink.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Message-id: 1414404776-4919-3-git-send-email-mreitz@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
This commit is contained in:
Max Reitz 2014-10-27 11:12:51 +01:00 committed by Stefan Hajnoczi
parent 7748543420
commit 76a3a34dce
3 changed files with 25 additions and 6 deletions
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4
qemu-img-cmds.hx
View File

@ -70,8 +70,8 @@ STEXI
ETEXI
DEF("amend", img_amend,
"amend [-q] [-f fmt] [-t cache] -o options filename")
"amend [-p] [-q] [-f fmt] [-t cache] -o options filename")
STEXI
@item amend [-q] [-f @var{fmt}] [-t @var{cache}] -o @var{options} @var{filename}
@item amend [-p] [-q] [-f @var{fmt}] [-t @var{cache}] -o @var{options} @var{filename}
@end table
ETEXI

25
qemu-img.c
View File

@ -2871,6 +2871,12 @@ out:
return 0;
}
static void amend_status_cb(BlockDriverState *bs,
int64_t offset, int64_t total_work_size)
{
qemu_progress_print(100.f * offset / total_work_size, 0);
}
static int img_amend(int argc, char **argv)
{
int c, ret = 0;
@ -2879,13 +2885,13 @@ static int img_amend(int argc, char **argv)
QemuOpts *opts = NULL;
const char *fmt = NULL, *filename, *cache;
int flags;
bool quiet = false;
bool quiet = false, progress = false;
BlockBackend *blk = NULL;
BlockDriverState *bs = NULL;
cache = BDRV_DEFAULT_CACHE;
for (;;) {
c = getopt(argc, argv, "ho:f:t:q");
c = getopt(argc, argv, "ho:f:t:pq");
if (c == -1) {
break;
}
@ -2915,6 +2921,9 @@ static int img_amend(int argc, char **argv)
case 't':
cache = optarg;
break;
case 'p':
progress = true;
break;
case 'q':
quiet = true;
break;
@ -2925,6 +2934,11 @@ static int img_amend(int argc, char **argv)
error_exit("Must specify options (-o)");
}
if (quiet) {
progress = false;
}
qemu_progress_init(progress, 1.0);
filename = (optind == argc - 1) ? argv[argc - 1] : NULL;
if (fmt && has_help_option(options)) {
/* If a format is explicitly specified (and possibly no filename is
@ -2968,13 +2982,18 @@ static int img_amend(int argc, char **argv)
goto out;
}
ret = bdrv_amend_options(bs, opts, NULL);
/* In case the driver does not call amend_status_cb() */
qemu_progress_print(0.f, 0);
ret = bdrv_amend_options(bs, opts, &amend_status_cb);
qemu_progress_print(100.f, 0);
if (ret < 0) {
error_report("Error while amending options: %s", strerror(-ret));
goto out;
}
out:
qemu_progress_end();
blk_unref(blk);
qemu_opts_del(opts);
qemu_opts_free(create_opts);

2
qemu-img.texi
View File

@ -412,7 +412,7 @@ After using this command to grow a disk image, you must use file system and
partitioning tools inside the VM to actually begin using the new space on the
device.
@item amend [-f @var{fmt}] [-t @var{cache}] -o @var{options} @var{filename}
@item amend [-p] [-f @var{fmt}] [-t @var{cache}] -o @var{options} @var{filename}
Amends the image format specific @var{options} for the image file
@var{filename}. Not all file formats support this operation.