Re: [meta-ti][dunfell][PATCH] u-boot-ti: Use SRCREV to get short commit ID

[Denys Dmytriyenko <denis@denix.org>]

On Wed, Apr 27, 2022 at 07:50:13PM +0530, Devarsh Thakkar via lists.yoctoproject.org wrote:
> 
> On 20/04/22 05:04, Nishanth Menon wrote:
> > On 21:17-20220419, Devarsh Thakkar wrote:
> >> Due to recent security update in git, we are
> >> not able to fetch revision currently using existing method:
> >> https://github.blog/2022-04-12-git-security-vulnerability-announced/
> >>
> >> So instead, use the SRCREV to parse the short commit ID
> >> and set the UBOOT_LOCALVERSION variable.
> >>
> >> Signed-off-by: Devarsh Thakkar <devarsht@ti.com>
> >> ---
> >>  recipes-bsp/u-boot/u-boot-ti.inc | 10 +---------
> >>  1 file changed, 1 insertion(+), 9 deletions(-)
> >>
> >> diff --git a/recipes-bsp/u-boot/u-boot-ti.inc b/recipes-bsp/u-boot/u-boot-ti.inc
> >> index 231b7647..cc775e2e 100644
> >> --- a/recipes-bsp/u-boot/u-boot-ti.inc
> >> +++ b/recipes-bsp/u-boot/u-boot-ti.inc
> >> @@ -1,14 +1,6 @@
> >>  # UBOOT_LOCALVERSION can be set to add a tag to the end of the
> >>  # U-boot version string.  such as the commit id
> >> -def get_git_revision(p):
> >> -    import subprocess
> >> -
> >> -    try:
> >> -        return subprocess.Popen("git rev-parse HEAD 2>/dev/null ", cwd=p, shell=True, stdout=subprocess.PIPE, universal_newlines=True).communicate()[0].rstrip()
> >
> > I see a similar logic in
> > recipes-kernel/linux/setup-defconfig.inc as well.
> >
> > Considering similar problem
> >
> > https://lore.kernel.org/all/20220413155249.3458236-2-raj.khem@gmail.com/
> >
> > was wondering as to what might be a better way to solve this?
> >
> > There is also git rev-parse HEAD instances in oe-core as well and
> > bitbake(lib/layerindexlib/cooker.py) as well.
> >
> > I wonder since we know cwd=p, could we use that to set
> > https://git-scm.com/docs/git/2.35.2#Documentation/git.txt-codeGITCEILINGDIRECTORIEScode
> >  (which if my understanding is right, came in around v1.5.5.1-319-g0454dd93bfb2)
> >
> > OR maybe just set it to the base conf similar to what was done on
> > master oe-core/meta/conf/bitbake.conf (commit
> > 02ecf3e2a98a614805f6f2574c2bf14162192d01 "bitbake.conf: Prevent git from
> > detecting parent repo in recipe")?
> >
> > I am not sure if we should considering just side stepping this issue via
> > just not using the git to get the version string.. just my 2 cents.
> 
> My top level understanding was the security update was suggesting to avoid
> 
> doing what we were doing already i.e. calling git from
> 
> a sub-process through a recipe due to security concerns and so avoided
> using git
> 
> and also I think below change also achieves same what was achieved
> before with SRCREV, I have
> 
> similar fix on the kernel bb too which was failing with same error.
> 
> >> -    except OSError:
> >> -        return None
> >> -
> >> -UBOOT_LOCALVERSION = "-g${@get_git_revision('${S}').__str__()[:10]}"
> >> +UBOOT_LOCALVERSION = "-g${@d.getVar("SRCREV", False).__str__()[:10]}"

You should probably use SRCPV here to also work with AUTOREV.


> >>  UBOOT_SUFFIX ?= "img"
> >>  SPL_BINARY ?= "MLO"
> >> -- 
> >> 2.17.1
> >>