Re: [Qemu-devel] [PATCH] block: include original filename when reporting invalid URIs

[Jeff Cody]

On Tue, Feb 06, 2018 at 10:52:04AM +, Daniel P. Berrangé wrote:
> Consider passing a JSON based block driver to "qemu-img commit"
> 
> $ qemu-img commit 'json:{"driver":"qcow2","file":{"driver":"gluster",\
>   "volume":"gv0","path":"sn1.qcow2",
>   "server":[{"type":\
> "tcp","host":"10.73.199.197","port":"24007"}]},}'
> 
> Currently it will commit the content and then report an incredibly
> useless error message when trying to re-open the committed image:
> 
>   qemu-img: invalid URI
>   Usage: 
> file=gluster[+transport]://[host[:port]]volume/path[?socket=...][,file.debug=N][,file.logfile=/path/filename.log]
> 
> With this fix we get:
> 
>   qemu-img: invalid URI json:{"server.0.host": "10.73.199.197",
>   "driver": "gluster", "path": "luks.qcow2", "server.0.type":
>   "tcp", "server.0.port": "24007", "volume": "gv0"}
> 
> Of course the root cause problem still exists, but now we know
> what actually needs fixing.
> 
> Signed-off-by: Daniel P. Berrangé 
> ---
>  block/gluster.c  | 2 +-
>  block/sheepdog.c | 2 +-
>  2 files changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/block/gluster.c b/block/gluster.c
> index 0f4265a3a4..0215e19087 100644
> --- a/block/gluster.c
> +++ b/block/gluster.c
> @@ -660,7 +660,7 @@ static struct glfs 
> *qemu_gluster_init(BlockdevOptionsGluster *gconf,
>  if (filename) {
>  ret = qemu_gluster_parse_uri(gconf, filename);
>  if (ret < 0) {
> -error_setg(errp, "invalid URI");
> +error_setg(errp, "invalid URI %s", filename);
>  error_append_hint(errp, "Usage: file=gluster[+transport]://"
>  "[host[:port]]volume/path[?socket=...]"
>  "[,file.debug=N]"
> diff --git a/block/sheepdog.c b/block/sheepdog.c
> index f684477328..c847ab6c98 100644
> --- a/block/sheepdog.c
> +++ b/block/sheepdog.c
> @@ -1050,7 +1050,7 @@ static void sd_parse_uri(SheepdogConfig *cfg, const 
> char *filename,
>  
>  cfg->uri = uri = uri_parse(filename);
>  if (!uri) {
> -error_setg(, "invalid URI");
> +error_setg(, "invalid URI '%s'", filename);
>  goto out;
>  }
>  
> -- 
> 2.14.3
> 

Thanks,

Applied to my block branch:

git://github.com/codyprime/qemu-kvm-jtc block

-Jeff

Re: [Qemu-devel] [PATCH] block: include original filename when reporting invalid URIs

[Eric Blake]

On 02/06/2018 04:52 AM, Daniel P. Berrangé wrote:

Consider passing a JSON based block driver to "qemu-img commit"

$ qemu-img commit 'json:{"driver":"qcow2","file":{"driver":"gluster",\
   "volume":"gv0","path":"sn1.qcow2",
   "server":[{"type":\
  "tcp","host":"10.73.199.197","port":"24007"}]},}'

Currently it will commit the content and then report an incredibly
useless error message when trying to re-open the committed image:

   qemu-img: invalid URI
   Usage: 
file=gluster[+transport]://[host[:port]]volume/path[?socket=...][,file.debug=N][,file.logfile=/path/filename.log]

With this fix we get:

   qemu-img: invalid URI json:{"server.0.host": "10.73.199.197",
   "driver": "gluster", "path": "luks.qcow2", "server.0.type":
   "tcp", "server.0.port": "24007", "volume": "gv0"}

Of course the root cause problem still exists, but now we know
what actually needs fixing.

Signed-off-by: Daniel P. Berrangé 
---
  block/gluster.c  | 2 +-
  block/sheepdog.c | 2 +-
  2 files changed, 2 insertions(+), 2 deletions(-)


Reviewed-by: Eric Blake 

--
Eric Blake, Principal Software Engineer
Red Hat, Inc.   +1-919-301-3266
Virtualization:  qemu.org | libvirt.org

[Qemu-devel] [PATCH] block: include original filename when reporting invalid URIs

[Daniel P . Berrangé]

Consider passing a JSON based block driver to "qemu-img commit"

$ qemu-img commit 'json:{"driver":"qcow2","file":{"driver":"gluster",\
  "volume":"gv0","path":"sn1.qcow2",
  "server":[{"type":\
  "tcp","host":"10.73.199.197","port":"24007"}]},}'

Currently it will commit the content and then report an incredibly
useless error message when trying to re-open the committed image:

  qemu-img: invalid URI
  Usage: 
file=gluster[+transport]://[host[:port]]volume/path[?socket=...][,file.debug=N][,file.logfile=/path/filename.log]

With this fix we get:

  qemu-img: invalid URI json:{"server.0.host": "10.73.199.197",
  "driver": "gluster", "path": "luks.qcow2", "server.0.type":
  "tcp", "server.0.port": "24007", "volume": "gv0"}

Of course the root cause problem still exists, but now we know
what actually needs fixing.

Signed-off-by: Daniel P. Berrangé 
---
 block/gluster.c  | 2 +-
 block/sheepdog.c | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/block/gluster.c b/block/gluster.c
index 0f4265a3a4..0215e19087 100644
--- a/block/gluster.c
+++ b/block/gluster.c
@@ -660,7 +660,7 @@ static struct glfs 
*qemu_gluster_init(BlockdevOptionsGluster *gconf,
 if (filename) {
 ret = qemu_gluster_parse_uri(gconf, filename);
 if (ret < 0) {
-error_setg(errp, "invalid URI");
+error_setg(errp, "invalid URI %s", filename);
 error_append_hint(errp, "Usage: file=gluster[+transport]://"
 "[host[:port]]volume/path[?socket=...]"
 "[,file.debug=N]"
diff --git a/block/sheepdog.c b/block/sheepdog.c
index f684477328..c847ab6c98 100644
--- a/block/sheepdog.c
+++ b/block/sheepdog.c
@@ -1050,7 +1050,7 @@ static void sd_parse_uri(SheepdogConfig *cfg, const char 
*filename,
 
 cfg->uri = uri = uri_parse(filename);
 if (!uri) {
-error_setg(, "invalid URI");
+error_setg(, "invalid URI '%s'", filename);
 goto out;
 }
 
-- 
2.14.3