[Buildroot] [PATCH v6 2/5] package/bmap-tools: enable host package

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

Thomas, All,

On 2021-06-21 23:01 +0200, Thomas Petazzoni spake thusly:
> bmaptool allows to drastically reduce the amount of data to transfer
> when writing to an SD card. Example with a 544 MiB sdcard.img:
> 
> $ bmaptool create sdcard.img > sdcard.bmap
> $ gzip sdcard.img
> $ bmaptool copy sdcard.img.gz /dev/sdc
> bmaptool: info: discovered bmap file 'sdcard.bmap'
> bmaptool: info: block map format version 2.0
> bmaptool: info: 139265 blocks of size 4096 (544.0 MiB), mapped 23918 blocks (93.4 MiB or 17.2%)
> bmaptool: info: copying image 'sdcard.img.gz' to block device '/dev/sdc' using bmap file 'sdcard.bmap'
> bmaptool: info: 100% copied
> bmaptool: info: synchronizing '/dev/sdc'
> bmaptool: info: copying time: 7.7s, copying speed 12.1 MiB/sec
> 
> So it means that instead of writing 544 MiB, only 93.4 MiB had to be
> written.
> 
> In terms of implementation details, compared to the target bmap-tools
> package, there are fewer "selects" that are needed because:
> 
>  - The dependency on setuptools is not needed, because the package
>    uses the setuptools SETUP_TYPE, so host-python-setuptools is
>    already a build dependency.
> 
>  - host-python and host-python3 are always built with Expat XML
>    support.
> 
> Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

Applied to master, thanks.

Regards,
Yann E. MORIN.

> ---
>  package/Config.in.host            |  1 +
>  package/bmap-tools/Config.in.host | 12 ++++++++++++
>  package/bmap-tools/bmap-tools.mk  |  1 +
>  3 files changed, 14 insertions(+)
>  create mode 100644 package/bmap-tools/Config.in.host
> 
> diff --git a/package/Config.in.host b/package/Config.in.host
> index 064c98af3d..8d443ea255 100644
> --- a/package/Config.in.host
> +++ b/package/Config.in.host
> @@ -5,6 +5,7 @@ menu "Host utilities"
>  	source "package/android-tools/Config.in.host"
>  	source "package/asn1c/Config.in.host"
>  	source "package/babeltrace2/Config.in.host"
> +	source "package/bmap-tools/Config.in.host"
>  	source "package/btrfs-progs/Config.in.host"
>  	source "package/cbootimage/Config.in.host"
>  	source "package/checkpolicy/Config.in.host"
> diff --git a/package/bmap-tools/Config.in.host b/package/bmap-tools/Config.in.host
> new file mode 100644
> index 0000000000..a20829030d
> --- /dev/null
> +++ b/package/bmap-tools/Config.in.host
> @@ -0,0 +1,12 @@
> +config BR2_PACKAGE_HOST_BMAP_TOOLS
> +	bool "host bmap-tools"
> +	select BR2_PACKAGE_HOST_PYTHON_SIX # runtime
> +	help
> +	  Tool to flash image files to block devices using the block map
> +	  bmaptool is a generic tool for creating the block map (bmap)
> +	  for a file, and copying files using the block map. The idea is
> +	  that large file containing unused blocks, like raw system
> +	  image files, can be copied or flashed a lot faster with
> +	  bmaptool than with traditional tools like "dd" or "cp".
> +
> +	  https://github.com/intel/bmap-tools
> diff --git a/package/bmap-tools/bmap-tools.mk b/package/bmap-tools/bmap-tools.mk
> index c8b41c225f..32399ca151 100644
> --- a/package/bmap-tools/bmap-tools.mk
> +++ b/package/bmap-tools/bmap-tools.mk
> @@ -11,3 +11,4 @@ BMAP_TOOLS_LICENSE_FILES = COPYING
>  BMAP_TOOLS_SETUP_TYPE = setuptools
>  
>  $(eval $(python-package))
> +$(eval $(host-python-package))
> -- 
> 2.31.1
> 
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