[OE-core] [PATCH] ccache.bbclass: don't remove CCACHE_DIR as part of do_clean

[Khem Raj]

> On Aug 11, 2016, at 1:38 AM, Andre McCurdy <armccurdy at gmail.com> wrote:
> 
> Removing the ccache directory as part of do_clean is unnecessarily
> conservative and defeats many of the benefits of ccache.
> 
> The original justification for this behaviour was to avoid confusion
> in the corner case that the ccache directory becomes corrupted.
> However the standard approach for dealing with such highly unlikely
> corner cases (ie manually removing tmp) would also recover from
> corruption of the ccache directories, without the negative impact of
> defeating ccache during normal development.

perhaps a good know-how on this if someone runs into this case would
justify this patch. Since this can still break the case where someone
is doing -cclean* operations and other tasks are run individually for
such broken case.

> 
> Signed-off-by: Andre McCurdy <armccurdy at gmail.com>
> ---
> meta/classes/ccache.bbclass | 2 --
> 1 file changed, 2 deletions(-)
> 
> diff --git a/meta/classes/ccache.bbclass b/meta/classes/ccache.bbclass
> index 2cdce46..2e9837c 100644
> --- a/meta/classes/ccache.bbclass
> +++ b/meta/classes/ccache.bbclass
> @@ -4,5 +4,3 @@ CCACHE_DISABLE[unexport] = "1"
> 
> do_configure[dirs] =+ "${CCACHE_DIR}"
> do_kernel_configme[dirs] =+ "${CCACHE_DIR}"
> -
> -do_clean[cleandirs] += "${CCACHE_DIR}"
> --
> 1.9.1
> 
> --
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