Re: [PATCH] scripts/ci: enable use of cached base repository for fast build

[Jan Kiszka <jan.kiszka@siemens.com>]

On 29.11.18 08:19, Maxim Yu. Osipov wrote:
> Signed-off-by: Maxim Yu. Osipov <mosipovd@ilbers.de>
> ---
>  scripts/ci_build.sh | 7 +++++++
>  1 file changed, 7 insertions(+)
> 
> diff --git a/scripts/ci_build.sh b/scripts/ci_build.sh
> index 059df21..20b77b7 100755
> --- a/scripts/ci_build.sh
> +++ b/scripts/ci_build.sh
> @@ -86,7 +86,14 @@ fi
>  if [ -n "$FAST_BUILD" ]; then
>      # Start build for the reduced set of configurations
>      # Enforce cross-compilation to speed up the build
> +    # Enable use of cached base repository
>      sed -i -e 's/ISAR_CROSS_COMPILE ?= "0"/ISAR_CROSS_COMPILE ?= "1"/g' conf/local.conf
> +    bitbake $BB_ARGS -c cache_base_repo \
> +        multiconfig:qemuarm-stretch:isar-image-base \
> +        multiconfig:qemuarm64-stretch:isar-image-base \
> +        multiconfig:qemuamd64-stretch:isar-image-base
> +    sudo rm -rf tmp
> +    sed -i -e 's/#ISAR_USE_CACHED_BASE_REPO ?= "1"/ISAR_USE_CACHED_BASE_REPO ?= "1"/g' conf/local.conf
>      bitbake $BB_ARGS \
>          multiconfig:qemuarm-stretch:isar-image-base \
>          multiconfig:qemuarm64-stretch:isar-image-base \
> 

That's a important step.

BTW, what is still missing to do something like this:

diff --git a/meta/classes/image.bbclass b/meta/classes/image.bbclass
index d8fbfd5..bfefe20 100644
--- a/meta/classes/image.bbclass
+++ b/meta/classes/image.bbclass
@@ -144,7 +144,7 @@ do_cache_base_repo() {
     fi
 }
 
-addtask cache_base_repo after do_rootfs do_install_imager_deps
+addtask cache_base_repo after do_rootfs do_install_imager_deps before do_build
 
 # Imager are expected to run natively, thus will use the target buildchroot.
 ISAR_CROSS_COMPILE = "0"

That would simplify the usage (I always forget how that special target
is called), including CI.

DISCLAIMER: I didn't test this intensively.

Jan

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