Re: [Qemu-block] [PATCH v4 1/2] iotests: Use absolute paths for executables

[Eric Blake]

On 06/21/2017 08:30 AM, Max Reitz wrote:
> A user may specify a relative path for accessing qemu, qemu-img, etc.
> through environment variables ($QEMU_PROG and friends) or a symlink.
> 
> If a test decides to change its working directory, relative paths will
> cease to work, however. Work around this by making all of the paths to
> programs that should undergo testing absolute. Besides "realpath", we
> also have to use "which" to support programs in $PATH.

Is this sentence stale...

> 
> As a side effect, this fixes specifying these programs as symlinks for
> out-of-tree builds: Before, you would have to create two symlinks, one
> in the build and one in the source tree (the first one for common.config
> to find, the second one for the iotest to use). Now it is sufficient to
> create one in the build tree because common.config will resolve it.
> 
> Reported-by: Kevin Wolf <address@hidden>
> Reviewed-by: Eric Blake <address@hidden>
> Signed-off-by: Max Reitz <address@hidden>
> ---
>  tests/qemu-iotests/common.config | 6 ++++++
>  1 file changed, 6 insertions(+)
> 
> diff --git a/tests/qemu-iotests/common.config 
> b/tests/qemu-iotests/common.config
> index d1b45f5..c1dc425 100644
> --- a/tests/qemu-iotests/common.config
> +++ b/tests/qemu-iotests/common.config
> @@ -103,6 +103,12 @@ if [ -z "$QEMU_VXHS_PROG" ]; then
>      export QEMU_VXHS_PROG="`set_prog_path qnio_server`"
>  fi
>  
> +export QEMU_PROG=$(realpath -- "$(type -p "$QEMU_PROG")")

...now that you updated per my review to favor 'type' over 'which'?
Otherwise, the R-b stands.

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

signature.asc
Description: OpenPGP digital signature