[Buildroot] [PATCHv3 2/2] utils/test-pkg: clean output dir for successful builds

[Yann E. MORIN <yann.morin.1998@free.fr>]

Thomas, All,

On 2019-02-05 22:21 +0100, Thomas De Schampheleire spake thusly:
> From: Thomas De Schampheleire <thomas.de_schampheleire@nokia.com>
> 
> test-pkg will use gigabytes of space when testing all toolchains.
> Nevertheless, you are normally only interested in the actual build / host
> tree when there is a build failure.
> 
> Do a 'make clean' for successful builds to save disk space, unless the new
> option '-k/--keep' is set.
> Note that the logfile and configuration is always retained for inspection.
> 
> Signed-off-by: Thomas De Schampheleire <thomas.de_schampheleire@nokia.com>

Acked-by: Yann E. MORIN <yann.morin.1998@free.fr>

Regards,
Yann E. MORIN.

> ---
>  utils/test-pkg | 21 ++++++++++++++++++---
>  1 file changed, 18 insertions(+), 3 deletions(-)
> 
> v3: add missing help entry for --keep
> v2: make the feature optional via '--keep' (feedback Arnout and Peter)
> 
> diff --git a/utils/test-pkg b/utils/test-pkg
> index 087f9ddca9..c2aec0784d 100755
> --- a/utils/test-pkg
> +++ b/utils/test-pkg
> @@ -6,16 +6,17 @@ TOOLCHAINS_CSV='support/config-fragments/autobuild/toolchain-configs.csv'
>  main() {
>      local o O opts
>      local cfg dir pkg random toolchains_csv toolchain all number mode
> -    local ret nb nb_skip nb_fail nb_legal nb_tc build_dir
> +    local ret nb nb_skip nb_fail nb_legal nb_tc build_dir keep
>      local -a toolchains
>  
> -    o='hac:d:n:p:r:t:'
> -    O='help,all,config-snippet:,build-dir:,number:,package:,random:,toolchains-csv:'
> +    o='hakc:d:n:p:r:t:'
> +    O='help,all,keep,config-snippet:,build-dir:,number:,package:,random:,toolchains-csv:'
>      opts="$(getopt -n "${my_name}" -o "${o}" -l "${O}" -- "${@}")"
>      eval set -- "${opts}"
>  
>      random=0
>      all=0
> +    keep=0
>      number=0
>      mode=0
>      toolchains_csv="${TOOLCHAINS_CSV}"
> @@ -27,6 +28,9 @@ main() {
>          (-a|--all)
>              all=1; shift 1
>              ;;
> +        (-k|--keep)
> +            keep=1; shift 1
> +            ;;
>          (-c|--config-snippet)
>              cfg="${2}"; shift 2
>              ;;
> @@ -161,6 +165,12 @@ build_one() {
>      if ! make O="${dir}" legal-info >> "${dir}/logfile" 2>&1; then
>          return 3
>      fi
> +
> +    # If we get here, the build was successful. Clean up the build/host
> +    # directories to save disk space, unless 'keep' was set.
> +    if [ ${keep} -ne 1 ]; then
> +        make O="${dir}" clean >> "${dir}/logfile" 2>&1
> +    fi
>  }
>  
>  help() {
> @@ -221,6 +231,11 @@ Options:
>          try. If not specified, the toolchains in ${TOOLCHAINS_CSV} will be
>          used.
>  
> +    -k, --keep
> +        Keep the build directories even if the build succeeds.
> +        Note: the logfile and configuration is always retained, even without
> +        this option.
> +
>  Example:
>  
>      Testing libcec would require a config snippet that contains:
> -- 
> 2.19.2
> 
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