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block: include original filename when reporting invalid URIs 

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 <berrange@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-id: 20180206105204.14817-1-berrange@redhat.com
Signed-off-by: Jeff Cody <jcody@redhat.com>
This commit is contained in:
Daniel P. Berrangé 2018-02-06 10:52:04 +00:00 committed by Jeff Cody
parent 834eddf22e
commit 44acd46f60
2 changed files with 2 additions and 2 deletions
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2
block/gluster.c
View File

@ -665,7 +665,7 @@ static int qemu_gluster_parse(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]"

2
block/sheepdog.c
View File

@ -1036,7 +1036,7 @@ static void sd_parse_uri(SheepdogConfig *cfg, const char *filename,
cfg->uri = uri = uri_parse(filename);
if (!uri) {
error_setg(&err, "invalid URI");
error_setg(&err, "invalid URI '%s'", filename);
goto out;
}