Re: [PATCH 04/10] dim: autodetect remotes, first part for dim_setup

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On Tue, 18 Oct 2016, Daniel Vetter <daniel.vetter@xxxxxxxx> wrote:
> The goals here are multiple:
> - simpler configuration through autodetection
> - allows seamless upgrading to git worktree for the aux checkouts
> - eventually I want to split up drm-misc into a separate remote ...
>
> And yes this is just a start.
>
> v2: Print errors to stderr, otherwise they can't be seen when directly
> assigning the result of get_remote_name to a variable.
>
> Signed-off-by: Daniel Vetter <daniel.vetter@xxxxxxxxx>
> ---
>  dim | 112 +++++++++++++++++++++++++++++++++++---------------------------------
>  1 file changed, 58 insertions(+), 54 deletions(-)
>
> diff --git a/dim b/dim
> index 2601bb7dbbad..90eb553c6575 100755
> --- a/dim
> +++ b/dim
> @@ -192,6 +192,24 @@ if [[ "$((`date +%s` % 100))" -eq "0" ]] ; then
>          dim_uptodate
>  fi
>  
> +function get_remote_name
> +{
> +	local remote_url=$1
> +
> +	local remote=`git remote -v | grep $remote_url | \
> +		head -n1 | sed -e 's/^\(.*\)\t.*/\1/'`

'cut -f 1' seems cleaner than the sed.

> +
> +	if [[ $remote == "" ]] ; then

I'd prefer

	if [[ -z "$remote" ]]; then

> +		echoerr No git remote for $remote_url found in `pwd`.
> +		echoerr Please set it up using
> +		echoerr     $ git remote add '<name>' $remote_url
> +		echoerr with a name of your choice.

I'm fond of wrapping the strings in double quotes. Gives me nicer
highlighting in the editor. ;)

Otherwise seems nice.

BR,
Jani.

> +		exit 1
> +	fi
> +
> +	echo $remote
> +}
> +
>  # get message id from file
>  # $1 = file
>  message_get_id ()
> @@ -1044,8 +1062,36 @@ function dim_update_branches
>  	update_rerere_cache
>  }
>  
> +function setup_aux_checkout # name remote
> +{
> +	local name=$1
> +	local remote_url=$2
> +	local dir=$3
> +	local remote
> +
> +	echo "Setting up $dir ..."
> +
> +	if [ ! -d $dir ]; then
> +		git clone --reference=$DIM_PREFIX/$DIM_DRM_INTEL/.git $remote_url $dir
> +		cd $dir
> +		git config remote.origin.url $remote_url
> +		echo "$DIM_PREFIX/$DIM_DRM_INTEL/.git/objects" > .git/objects/info/alternates
> +		git repack -a -d -l
> +		remote=origin
> +	else
> +		cd $dir
> +		remote=`get_remote_name $drm_intel_ssh`
> +	fi
> +	if ! git branch | grep $name > /dev/null ; then
> +		git checkout -t $remote/$name
> +	fi
> +	cd ..
> +}
> +
>  function dim_setup
>  {
> +	local remote
> +
>  	if [ ! -d $DIM_PREFIX ]; then
>  		echo "please set up your repository directory with:"
>  		echo "    mkdir -p $DIM_PREFIX"
> @@ -1062,76 +1108,34 @@ function dim_setup
>  		exit 1
>  	fi
>  	cd $DIM_DRM_INTEL
> -	if ! git remote -v | grep "^origin[[:space:]]" | grep $linux_upstream_git > /dev/null; then
> -		echo "please set up remote origin for $linux_upstream_git"
> -		exit 1
> -	fi
> -	if ! git remote -v | grep "^$DIM_DRM_INTEL_REMOTE[[:space:]]" | grep $drm_intel_ssh > /dev/null; then
> -		echo "please set up remote $DIM_DRM_INTEL_REMOTE for $drm_intel_ssh with:"
> -		echo "    git remote add $DIM_DRM_INTEL_REMOTE $drm_intel_ssh"
> -		echo "or update your configuration."
> -		exit 1
> -	fi
> -	if ! git remote -v | grep "^$DIM_DRM_UPSTREAM_REMOTE[[:space:]]" | grep $drm_upstream_git > /dev/null; then
> -		echo "please set up remote $DIM_DRM_UPSTREAM_REMOTE for $drm_upstream_git with:"
> -		echo "    git remote add $DIM_DRM_UPSTREAM_REMOTE $drm_upstream_git"
> -		echo "or update your configuration."
> -		exit 1
> -	fi
> -	cd ..
>  
> -	echo "Setting up maintainer-tools ..."
> -	if [ ! -d maintainer-tools ]; then
> -		git clone --reference=$DIM_PREFIX/$DIM_DRM_INTEL/.git $drm_intel_ssh maintainer-tools
> -	fi
> -	cd maintainer-tools
> -	git config remote.origin.url $drm_intel_ssh
> -	echo "$DIM_PREFIX/$DIM_DRM_INTEL/.git/objects" > .git/objects/info/alternates
> -	git repack -a -d -l
> -	if ! git branch | grep maintainer-tools > /dev/null ; then
> -		git checkout -t origin/maintainer-tools
> -	fi
> -	cd ..
> +	# check remote configuration
> +	remote=`get_remote_name $linux_upstream_git`
> +	remote=`get_remote_name $drm_intel_ssh`
> +	remote=`get_remote_name $drm_upstream_git`
>  
> -	echo "Setting up drm-intel-rerere ..."
> -	if [ ! -d drm-intel-rerere ]; then
> -		git clone --reference=$DIM_PREFIX/$DIM_DRM_INTEL/.git $drm_intel_ssh drm-intel-rerere
> -	fi
> -	cd drm-intel-rerere
> -	git config remote.origin.url $drm_intel_ssh
> -	echo "$DIM_PREFIX/$DIM_DRM_INTEL/.git/objects" > .git/objects/info/alternates
> -	git repack -a -d -l
> -	if ! git branch | grep rerere-cache > /dev/null ; then
> -		git checkout -t origin/rerere-cache
> -	fi
>  	cd ..
>  
> -	echo "Setting up drm-intel-nightly ..."
> -	if [ ! -d drm-intel-nightly ]; then
> -		git clone --reference=$DIM_PREFIX/$DIM_DRM_INTEL/.git $drm_intel_ssh drm-intel-nightly
> -	fi
> +	setup_aux_checkout maintainer-tools $drm_intel_ssh maintainer-tools
> +
> +	setup_aux_checkout rerere-cache $drm_intel_ssh drm-intel-rerere
> +
> +	setup_aux_checkout drm-intel-nightly $drm_intel_ssh drm-intel-nightly
>  	cd drm-intel-nightly
> -	mkdir -p .git/rr-cache
> -	git config remote.origin.url $drm_intel_ssh
> -	echo "$DIM_PREFIX/$DIM_DRM_INTEL/.git/objects" > .git/objects/info/alternates
> -	git repack -a -d -l
> -	if ! git branch | grep drm-intel-nightly > /dev/null ; then
> -		git checkout -t origin/drm-intel-nightly
> -	fi
>  	if git remote | grep drm-upstream > /dev/null ; then
>  		git config remote.drm-upstream.url $drm_upstream_git
>  	else
> -		git remote add drm-upstream $drm_upstream_git
> +		remote=`get_remote_name $drm_upstream_git`
>  	fi
>  	if git remote | grep sound-upstream > /dev/null ; then
>  		git config remote.sound-upstream.url $sound_upstream_git
>  	else
> -		git remote add sound-upstream $sound_upstream_git
> +		remote=`get_remote_name $sound_upstream_git`
>  	fi
>  	if git remote | grep driver-core-upstream > /dev/null ; then
>  		git config remote.driver-core-upstream.url $driver_core_upstream_git
>  	else
> -		git remote add driver-core-upstream $driver_core_upstream_git
> +		remote=`get_remote_name $driver_core_upstream_git`
>  	fi
>  
>  	echo "dim setup successfully completed!"

-- 
Jani Nikula, Intel Open Source Technology Center
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