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Re: [Qemu-block] [PATCH v7 3/4] qemu-img: introduce --target-image-opts
From: |
Daniel P. Berrange |
Subject: |
Re: [Qemu-block] [PATCH v7 3/4] qemu-img: introduce --target-image-opts for 'convert' command |
Date: |
Tue, 9 May 2017 10:36:43 +0100 |
User-agent: |
Mutt/1.8.0 (2017-02-23) |
On Wed, May 03, 2017 at 09:50:49PM +0200, Max Reitz wrote:
> On 02.05.2017 16:47, Daniel P. Berrange wrote:
> > The '--image-opts' flag indicates whether the source filename
> > includes options. The target filename has to remain in the
> > plain filename format though, since it needs to be passed to
> > bdrv_create(). When using --skip-create though, it would be
> > possible to use image-opts syntax. This adds --target-image-opts
> > to indicate that the target filename includes options. Currently
> > this mandates use of the --skip-create flag too.
> >
> > Reviewed-by: Fam Zheng <address@hidden>
> > Reviewed-by: Eric Blake <address@hidden>
>
> Sure you want to keep this, considering that there are quite some
> changes since v5?
>
> > Signed-off-by: Daniel P. Berrange <address@hidden>
> > ---
> > qemu-img-cmds.hx | 4 +--
> > qemu-img.c | 77
> > +++++++++++++++++++++++++++++++++++++-------------------
> > qemu-img.texi | 12 +++++++--
> > 3 files changed, 63 insertions(+), 30 deletions(-)
>
> [...]
>
> > diff --git a/qemu-img.c b/qemu-img.c
> > index d8fdcb1..94c8cea 100644
> > --- a/qemu-img.c
> > +++ b/qemu-img.c
>
> [...]
>
> > @@ -1900,7 +1901,7 @@ static int img_convert(int argc, char **argv)
> > char *options = NULL;
> > Error *local_err = NULL;
> > bool writethrough, src_writethrough, quiet = false, image_opts = false,
> > - skip_create = false, progress = false;
> > + skip_create = false, progress = false, tgt_image_opts = false;
>
> Not sure about the indentation here. (I personally don't like spanning
> the declaration over multiple lines in the first place, but that's a
> different topic.) Indenting consecutive lines by four spaces is
> standard, but the indentation by five spaces had a reason.
>
> I guess I'd personally rather keep the five-space indentation...
This change was just automatic reindent by the editor, I'll put it
back to 5.
>
> > int64_t ret = -EINVAL;
> >
> > ImgConvertState s = (ImgConvertState) {
>
> [...]
>
> > @@ -2047,12 +2056,22 @@ static int img_convert(int argc, char **argv)
> > goto fail_getopt;
> > }
> >
> > + if (tgt_image_opts && !skip_create) {
> > + error_report("--target-image-opts requires use of -n flag");
> > + goto fail_getopt;
> > + }
> > +
> > s.src_num = argc - optind - 1;
> > out_filename = s.src_num >= 1 ? argv[argc - 1] : NULL;
> >
> > if (options && has_help_option(options)) {
> > - ret = print_block_option_help(out_filename, out_fmt);
> > - goto fail_getopt;
> > + if (out_fmt) {
> > + ret = print_block_option_help(out_filename, out_fmt);
> > + goto out;
>
> Shouldn't this remain goto fail_getopt;?
Yes
>
> > + } else {
> > + error_report("Option help requires a format be specified");
> > + goto fail_getopt;
> > + }
> > }
> >
> > if (s.src_num < 1) {
>
> [...]
>
> Why did you remove the compress &&
> !out_bs->drv->bdrv_co_pwritev_compressed check? I liked it. :-(
That's a rebase / conflict resolution mistake
Regards,
Daniel
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