Re: [PATCH v2 9/9] util: error: Put error code messages into an array

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On Thu, Dec 13, 2018 at 03:48:56PM +0100, Peter Krempa wrote:
> Simplify adding of new errors by just adding them to the array of
> messages rather than having to add conversion code.
>
> Additionally most of the messages add the format string part as a suffix
> so we can avoid some of the duplication by using a macro which adds the
> suffix to the original string. This way most messages fit into the 80
> column limit and only 3 exceed 100 colums.
>
> Signed-off-by: Peter Krempa <pkrempa@xxxxxxxxxx>
> ---
>
> Notes:
>     v2:
>     - use positional initializers
>     - add macros for shortening the messages
>     - make it gettext-friendly, since the last version was not
>
>  src/libvirt_private.syms |   1 +
>  src/util/virerror.c      | 738 +++++++--------------------------------
>  2 files changed, 126 insertions(+), 613 deletions(-)
>
> diff --git a/src/libvirt_private.syms b/src/libvirt_private.syms
> index 6184030d59..775b33e151 100644
> --- a/src/libvirt_private.syms
> +++ b/src/libvirt_private.syms
> @@ -1753,6 +1753,7 @@ virDispatchError;
>  virErrorCopyNew;
>  virErrorInitialize;
>  virErrorMsg;
> +virErrorMsgStrings;
>  virErrorPreserveLast;
>  virErrorRestore;
>  virErrorSetErrnoFromLastError;
> diff --git a/src/util/virerror.c b/src/util/virerror.c
> index 03166d85d2..d3f1d7d0e1 100644
> --- a/src/util/virerror.c
> +++ b/src/util/virerror.c
> @@ -904,6 +904,124 @@ void virRaiseErrorObject(const char *filename,
>  }
>
>
> +typedef struct {
> +    const char *msg;
> +    const char *msginfo;
> +} virErrorMsgTuple;
> +
> +#define MSG(msg, sfx) \
> +   { N_(msg), N_(msg sfx) }

So ^this is the majority of messages, therefore I think we could introduce one
more macro MSG_FULL which the ones you introduced could link to and we might
get rid of the ": %s" suffix which is repeated over and over again.

Since you incorporated Dan's points, there are no further comments from my
side:

Reviewed-by: Erik Skultety <eskultet@xxxxxxxxxx>

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