Re: [PATCH v2 1/2] meta-isar: Add simple example for injecting prebuilt deb packages

[Henning Schild <henning.schild@siemens.com>]

Am Sat, 13 Feb 2021 13:46:20 +0100
schrieb Jan Kiszka <jan.kiszka@siemens.com>:

> From: Jan Kiszka <jan.kiszka@siemens.com>
> 
> While it's definitely nicer and more convenient to pull deb packages
> from repos, this may not always be the case. This recipe demonstrates
> how to implement such a pattern.
> 
> The example embeds the deb as local artifact which is clearly an
> anti-pattern. That path was only chosen here because it's hard to
> find a stable URL to a prebuilt arch-independent deb file in the
> wild. The procedure for creating the deb is also included as README.
> 
> Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
> ---
>  meta-isar/conf/local.conf.sample              |   2 +-
>  .../prebuilt-deb/files/README-create-deb.txt  |  14 ++++++++++++
>  .../files/example-prebuilt_1.0.0-0_all.deb    | Bin 0 -> 776 bytes
>  .../recipes-app/prebuilt-deb/prebuilt-deb.bb  |  20
> ++++++++++++++++++ 4 files changed, 35 insertions(+), 1 deletion(-)
>  create mode 100644
> meta-isar/recipes-app/prebuilt-deb/files/README-create-deb.txt create
> mode 100644
> meta-isar/recipes-app/prebuilt-deb/files/example-prebuilt_1.0.0-0_all.deb
> create mode 100644 meta-isar/recipes-app/prebuilt-deb/prebuilt-deb.bb
> 
> diff --git a/meta-isar/conf/local.conf.sample
> b/meta-isar/conf/local.conf.sample index 107496c1..cc0b5c66 100644
> --- a/meta-isar/conf/local.conf.sample
> +++ b/meta-isar/conf/local.conf.sample
> @@ -172,7 +172,7 @@ CONF_VERSION = "1"
>  
>  #
>  # The default list of extra packages to be installed.
> -IMAGE_INSTALL = "hello-isar example-raw
> example-module-${KERNEL_NAME} enable-fsck isar-exclude-docs samefile
> hello isar-disable-apt-cache cowsay" +IMAGE_INSTALL = "hello-isar
> example-raw example-module-${KERNEL_NAME} enable-fsck
> isar-exclude-docs samefile hello isar-disable-apt-cache cowsay
> example-prebuilt" # # Enable cross-compilation support diff --git
> a/meta-isar/recipes-app/prebuilt-deb/files/README-create-deb.txt
> b/meta-isar/recipes-app/prebuilt-deb/files/README-create-deb.txt new
> file mode 100644 index 00000000..e2dc35dc --- /dev/null
> +++ b/meta-isar/recipes-app/prebuilt-deb/files/README-create-deb.txt
> @@ -0,0 +1,14 @@
> +Create test deb package:
> +
> +mkdir -p example-prebuilt/DEBIAN example-prebuilt/opt
> +cat << EOF > example-prebuilt/DEBIAN/control
> +Section: misc
> +Priority: optional
> +Package: example-prebuilt
> +Version: 1.0.0
> +Maintainer: Who Knows <who.knows@example.com>
> +Description: Just a test package
> +Architecture: all
> +EOF
> +echo "Just some test content" >
> example-prebuilt/opt/some-package-file +dpkg -b example-prebuilt
> example-prebuilt_1.0.0-0_all.deb diff --git
> a/meta-isar/recipes-app/prebuilt-deb/files/example-prebuilt_1.0.0-0_all.deb
> b/meta-isar/recipes-app/prebuilt-deb/files/example-prebuilt_1.0.0-0_all.deb
> new file mode 100644 index
> 0000000000000000000000000000000000000000..3049dab62d8e8bb1857626e2a791e65a986c8f36
> GIT binary patch literal 776
> zcmY$iNi0gvu;WTeP0CEn(@o0EODw8XP*5;5Gc-0dH8e4^R8TMg@?oT*fq|KciGl(U
> zK|unSk)8opa(-S(QGSkINn(*+MHONF#>QrF{eR7?BBB@=Se{+m;>L1d0#iePBBK}s
> z1c=Be={!*X&&UzWAkMu<rj~K)0a-7*O3_1S)D|b&2(F!~Wt_XYcj`Wmwjwe2$w`7W
> zcNkvUUAXiyd%l*p<Pt8%i${;t8GgHeG&{q1@}?zb->yuspRjqxy_YRdYBVND7#5f2
> zojAB~Q`K$05-xTIohG9<PVDox7|dXp#Wbxa(D69WhI0WI3e~HHA8q(o_0@l#o&6@(
> zwlkYV_?K)u^IdHBj<EBw`SR9s+k6}UaSP9!bm#2jaM{)Sa+YpWi><u6{iPREb_CZ=
> zZa$kQO<C7YzD#cVVf3r*e*bQ-lcgMsWPcVEt~~tMRy%(d=gYi(rlC>ar1|Vp{`0?+
> zGmh5!vGP}B^_Qz+ljl!vuwN=~khxmP{$jH3WN!ur_pGvC@;BsPGcc|Jh7|+D;&bc5
> zHXcd;%>)WEmdL1-#F9jKL;ypXP+S_BSm20@?TpBAacGgFB`_`+)+5J-+Z>rA{{;?r  
> zDJES0U>A4Mbkg>BhKoyfKZ^bHDTkvjv;OI?g)B0Xc6n=U6YUqgTlLZCx22wE_MFR!  
> zml`a@^X-z-ZcRL~D)HNvt!|yXn<jpU*XaJUbxq;V#eX>ddOzB=Yw^ccs|9VlcYWwh
> z4s<OS%c<0RHl_M%-j^wDv${7sWn^i_v)|jwmVY%WF8FEJ5!1VO6oPkDY;ya}C8Bj|
> ma*R#G{p}eGV}ZePiLHOqg_-NZ85l1E{lvhK&Rz8yIm`gKeJ%$8
> 
> literal 0
> HcmV?d00001
> 
> diff --git a/meta-isar/recipes-app/prebuilt-deb/prebuilt-deb.bb
> b/meta-isar/recipes-app/prebuilt-deb/prebuilt-deb.bb new file mode
> 100644 index 00000000..2f1b699e
> --- /dev/null
> +++ b/meta-isar/recipes-app/prebuilt-deb/prebuilt-deb.bb

prebuilt-deb-1.0.0.bb

> @@ -0,0 +1,20 @@
> +# This software is a part of ISAR.
> +# Copyright (c) Siemens AG, 2021
> +#
> +# SPDX-License-Identifier: MIT
> +
> +inherit dpkg-base
> +
> +# NOTE: The deb packages should almost never be stored in the repo
> itself but +#       rather fetched from a binary-serving location.
> For this example, local +#       storage was just simpler to maintain
> across all archs and distros. +#
> +# 2nd NOTE: "unpack=false" is important, bitbake unpacks deb files
> otherwise +SRC_URI =
> "file://example-prebuilt_1.0.0-0_all.deb;unpack=false" +

file://${P}-0_all.deb

> +# Only needed if recipe name != package name, as in this case. Or
> multiple +# packages are provided by a single recipe.
> +PROVIDES += "example-prebuilt"
> +
> +do_dpkg_build() {
> +}