diff mbox series

[v3] vl: deprecate -writeconfig

Message ID 20210302180023.54555-1-pbonzini@redhat.com (mailing list archive)
State New, archived
Headers show
Series [v3] vl: deprecate -writeconfig | expand

Commit Message

Paolo Bonzini March 2, 2021, 6 p.m. UTC
The functionality of -writeconfig is limited and the code
does not even try to detect cases where it prints incorrect
syntax (for example if values have a quote in them, since
qemu_config_parse does not support any kind of escaping)
so remove it.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 docs/system/deprecated.rst | 7 +++++++
 qemu-options.hx            | 7 +------
 softmmu/vl.c               | 1 +
 3 files changed, 9 insertions(+), 6 deletions(-)

Comments

no-reply@patchew.org March 2, 2021, 6:39 p.m. UTC | #1
Patchew URL: https://patchew.org/QEMU/20210302180023.54555-1-pbonzini@redhat.com/



Hi,

This series seems to have some coding style problems. See output below for
more information:

Type: series
Message-id: 20210302180023.54555-1-pbonzini@redhat.com
Subject: [PATCH v3] vl: deprecate -writeconfig

=== TEST SCRIPT BEGIN ===
#!/bin/bash
git rev-parse base > /dev/null || exit 0
git config --local diff.renamelimit 0
git config --local diff.renames True
git config --local diff.algorithm histogram
./scripts/checkpatch.pl --mailback base..
=== TEST SCRIPT END ===

Updating 3c8cf5a9c21ff8782164d1def7f44bd888713384
From https://github.com/patchew-project/qemu
 * [new tag]         patchew/20210302180023.54555-1-pbonzini@redhat.com -> patchew/20210302180023.54555-1-pbonzini@redhat.com
Switched to a new branch 'test'
25b4cd1 vl: deprecate -writeconfig

=== OUTPUT BEGIN ===
ERROR: line over 90 characters
#66: FILE: softmmu/vl.c:3359:
+                    warn_report("-writeconfig is deprecated and will go away without a replacement");

total: 1 errors, 0 warnings, 34 lines checked

Commit 25b4cd1060d2 (vl: deprecate -writeconfig) has style problems, please review.  If any of these errors
are false positives report them to the maintainer, see
CHECKPATCH in MAINTAINERS.
=== OUTPUT END ===

Test command exited with code: 1


The full log is available at
http://patchew.org/logs/20210302180023.54555-1-pbonzini@redhat.com/testing.checkpatch/?type=message.
---
Email generated automatically by Patchew [https://patchew.org/].
Please send your feedback to patchew-devel@redhat.com
Thomas Huth March 2, 2021, 6:49 p.m. UTC | #2
On 02/03/2021 19.00, Paolo Bonzini wrote:
> The functionality of -writeconfig is limited and the code
> does not even try to detect cases where it prints incorrect
> syntax (for example if values have a quote in them, since
> qemu_config_parse does not support any kind of escaping)
> so remove it.
> 
> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
> ---
>   docs/system/deprecated.rst | 7 +++++++
>   qemu-options.hx            | 7 +------
>   softmmu/vl.c               | 1 +
>   3 files changed, 9 insertions(+), 6 deletions(-)
> 
> diff --git a/docs/system/deprecated.rst b/docs/system/deprecated.rst
> index 2fcac7861e..561c916da2 100644
> --- a/docs/system/deprecated.rst
> +++ b/docs/system/deprecated.rst
> @@ -146,6 +146,13 @@ library enabled as a cryptography provider.
>   Neither the ``nettle`` library, or the built-in cryptography provider are
>   supported on FIPS enabled hosts.
>   
> +``-writeconfig`` (since 6.0)
> +'''''''''''''''''''''''''''''
> +
> +The ``-writeconfig`` option is not able to serialize the entire contents
> +of the QEMU command line.  It is thus considered a failed experiment
> +and deprecated, with no current replacement.
> +
>   QEMU Machine Protocol (QMP) commands
>   ------------------------------------
>   
> diff --git a/qemu-options.hx b/qemu-options.hx
> index 34be5a7a2d..252db9357c 100644
> --- a/qemu-options.hx
> +++ b/qemu-options.hx
> @@ -4335,13 +4335,8 @@ SRST
>   ERST
>   DEF("writeconfig", HAS_ARG, QEMU_OPTION_writeconfig,
>       "-writeconfig <file>\n"
> -    "                read/write config file\n", QEMU_ARCH_ALL)
> +    "                read/write config file (deprecated)\n", QEMU_ARCH_ALL)
>   SRST
> -``-writeconfig file``
> -    Write device configuration to file. The file can be either filename
> -    to save command line and device configuration into file or dash
> -    ``-``) character to print the output to stdout. This can be later
> -    used as input file for ``-readconfig`` option.
>   ERST
>   
>   DEF("no-user-config", 0, QEMU_OPTION_nouserconfig,
> diff --git a/softmmu/vl.c b/softmmu/vl.c
> index b219ce1f35..10bd8a10a3 100644
> --- a/softmmu/vl.c
> +++ b/softmmu/vl.c
> @@ -3356,6 +3356,7 @@ void qemu_init(int argc, char **argv, char **envp)
>               case QEMU_OPTION_writeconfig:
>                   {
>                       FILE *fp;
> +                    warn_report("-writeconfig is deprecated and will go away without a replacement");
>                       if (strcmp(optarg, "-") == 0) {
>                           fp = stdout;
>                       } else {
> 

Reviewed-by: Thomas Huth <thuth@redhat.com>
Markus Armbruster March 3, 2021, 6:29 a.m. UTC | #3
Paolo Bonzini <pbonzini@redhat.com> writes:

> The functionality of -writeconfig is limited and the code
> does not even try to detect cases where it prints incorrect
> syntax (for example if values have a quote in them, since
> qemu_config_parse does not support any kind of escaping)
> so remove it.
>
> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

Acked-by: Markus Armbruster <armbru@redhat.com>
Gerd Hoffmann March 3, 2021, 7:19 a.m. UTC | #4
On Tue, Mar 02, 2021 at 07:00:23PM +0100, Paolo Bonzini wrote:
> The functionality of -writeconfig is limited and the code
> does not even try to detect cases where it prints incorrect
> syntax (for example if values have a quote in them, since
> qemu_config_parse does not support any kind of escaping)
> so remove it.
> 
> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

Acked-by: Gerd Hoffmann <kraxel@redhat.com>
diff mbox series

Patch

diff --git a/docs/system/deprecated.rst b/docs/system/deprecated.rst
index 2fcac7861e..561c916da2 100644
--- a/docs/system/deprecated.rst
+++ b/docs/system/deprecated.rst
@@ -146,6 +146,13 @@  library enabled as a cryptography provider.
 Neither the ``nettle`` library, or the built-in cryptography provider are
 supported on FIPS enabled hosts.
 
+``-writeconfig`` (since 6.0)
+'''''''''''''''''''''''''''''
+
+The ``-writeconfig`` option is not able to serialize the entire contents
+of the QEMU command line.  It is thus considered a failed experiment
+and deprecated, with no current replacement.
+
 QEMU Machine Protocol (QMP) commands
 ------------------------------------
 
diff --git a/qemu-options.hx b/qemu-options.hx
index 34be5a7a2d..252db9357c 100644
--- a/qemu-options.hx
+++ b/qemu-options.hx
@@ -4335,13 +4335,8 @@  SRST
 ERST
 DEF("writeconfig", HAS_ARG, QEMU_OPTION_writeconfig,
     "-writeconfig <file>\n"
-    "                read/write config file\n", QEMU_ARCH_ALL)
+    "                read/write config file (deprecated)\n", QEMU_ARCH_ALL)
 SRST
-``-writeconfig file``
-    Write device configuration to file. The file can be either filename
-    to save command line and device configuration into file or dash
-    ``-``) character to print the output to stdout. This can be later
-    used as input file for ``-readconfig`` option.
 ERST
 
 DEF("no-user-config", 0, QEMU_OPTION_nouserconfig,
diff --git a/softmmu/vl.c b/softmmu/vl.c
index b219ce1f35..10bd8a10a3 100644
--- a/softmmu/vl.c
+++ b/softmmu/vl.c
@@ -3356,6 +3356,7 @@  void qemu_init(int argc, char **argv, char **envp)
             case QEMU_OPTION_writeconfig:
                 {
                     FILE *fp;
+                    warn_report("-writeconfig is deprecated and will go away without a replacement");
                     if (strcmp(optarg, "-") == 0) {
                         fp = stdout;
                     } else {