[PATCH v5 06/11] dts: Add script to uprev dts/upstream subtree

[Marek Vasut]

On 2/2/24 14:05, Sumit Garg wrote:
> dts/update-dts-subtree.sh is just a wrapper around git subtree commands.
> Usage from the top level U-Boot source tree, run:
> 
> $ ./dts/update-dts-subtree.sh pull <release-tag>
> $ ./dts/update-dts-subtree.sh pick <commit-id>
> 
> Signed-off-by: Sumit Garg <sumit.garg at linaro.org>

How are the fixes which land in linux-stable handled now ?

Do I have to duplicate the work which is already being done by the 
linux-stable maintainers ?

> ---
> 
> Changes in v5:
> - Added support to cherry-pick fixes in subtree update script. Also, used
>    https:// instead of git://.
> 
> Changes in v4:
> - New patch to add script dts/update-dts-subtree.sh as per Rob's comments.
> 
>   dts/update-dts-subtree.sh | 45 +++++++++++++++++++++++++++++++++++++++
>   1 file changed, 45 insertions(+)
>   create mode 100755 dts/update-dts-subtree.sh
> 
> diff --git a/dts/update-dts-subtree.sh b/dts/update-dts-subtree.sh
> new file mode 100755
> index 000000000000..b781bf710025
> --- /dev/null
> +++ b/dts/update-dts-subtree.sh
> @@ -0,0 +1,45 @@
> +#!/bin/sh
> +# SPDX-License-Identifier: GPL-2.0+
> +#
> +# Copyright 2024 Linaro Ltd.
> +#
> +# Usage: from the top level U-Boot source tree, run:
> +# $ ./dts/update-dts-subtree.sh pull <release-tag>
> +# $ ./dts/update-dts-subtree.sh pick <commit-id>
> +#
> +# The script will pull changes from devicetree-rebasing repo into U-Boot
> +# as a subtree located as <U-Boot>/dts/upstream sub-directory. It will
> +# automatically create a squash/merge commit listing the commits imported.
> +
> +set -e
> +
> +merge_commit_msg=$(cat << EOF
> +Subtree merge tag '$2' of devicetree-rebasing repo [1] into dts/upstream
> +
> +[1] https://git.kernel.org/pub/scm/linux/kernel/git/devicetree/devicetree-rebasing.git/
> +EOF
> +)
> +
> +remote_add() {
> +    if ! git remote | grep -w devicetree-rebasing

I think you are looking for git-remote get-url here.

> +    then
> +        git remote add devicetree-rebasing \
> +            https://git.kernel.org/pub/scm/linux/kernel/git/devicetree/devicetree-rebasing.git

Rather than reconfigure user git remotes like this without user 
knowledge, either ask them, or print a warning and let the user 
configure their git remotes knowingly as they need to. Include the 
command in the warning to make it easier on the user.

> +    fi
> +    git fetch devicetree-rebasing master
> +}
> +
> +if [ ! -z $1 ] && [ $1 = "pull" ]
> +then
> +    remote_add

remote_add_and_fetch , since this does more then remote_add .

> +    git subtree pull --prefix dts/upstream devicetree-rebasing \
> +        $2 --squash -m "${merge_commit_msg}"
> +elif [ ! -z $1 ] && [ $1 = "pick" ]

The non-zero test is not useful, just add missing quotes around "$1" and 
compare:

elif [ "$1" = "pick" ]

> +then
> +    remote_add
> +    git cherry-pick -x --strategy=subtree -Xsubtree=dts/upstream/ $2
> +else
> +    echo "usage: $0 param1 param2"

The param names could really use improvement, instead of 'param1' that 
could be some '<op>' and 'param2' could be some '<url>' or something.

> +    echo "  param1    pull or pick"
> +    echo "  param2    release tag [pull] or commit id [pick]"
> +fi

Please run shellcheck on this .