Re: [PATCH 3/3] git-mergetool--lib: Make vimdiff retain the current directory

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David Aguilar venit, vidit, dixit 22.05.2011 11:57:
> When using difftool with vimdiff it can be unexpected that
> the current directory changes to the root of the project.
> Tell vim to chdir to the value of $GIT_PREFIX to fix this.
> 
> Care is taken to quote the variable so that vim expands it.
> This avoids problems when directory names contain spaces.
> 
> Signed-off-by: David Aguilar <davvid@xxxxxxxxx>
> Reported-by: FrÃdÃric Heitzmann <frederic.heitzmann@xxxxxxxxx>
> ---
>  git-mergetool--lib.sh |   13 +++++++++++++
>  1 files changed, 13 insertions(+), 0 deletions(-)
> 
> diff --git a/git-mergetool--lib.sh b/git-mergetool--lib.sh
> index 4db9212..ece6a08 100644
> --- a/git-mergetool--lib.sh
> +++ b/git-mergetool--lib.sh
> @@ -187,7 +187,9 @@ run_merge_tool () {
>  			fi
>  			check_unchanged
>  		else
> +			resolve_git_prefix
>  			"$merge_tool_path" -R -f -d -c "wincmd l" \
> +				-c 'cd $GIT_PREFIX' \
>  				"$LOCAL" "$REMOTE"
>  		fi
>  		;;
> @@ -198,7 +200,9 @@ run_merge_tool () {
>  				"$LOCAL" "$MERGED" "$REMOTE"
>  			check_unchanged
>  		else
> +			resolve_git_prefix
>  			"$merge_tool_path" -R -f -d -c "wincmd l" \
> +				-c 'cd $GIT_PREFIX' \
>  				"$LOCAL" "$REMOTE"
>  		fi
>  		;;
> @@ -437,3 +441,12 @@ get_merge_tool () {
>  	fi
>  	echo "$merge_tool"
>  }
> +
> +resolve_git_prefix() {
> +	# If GIT_PREFIX is empty then we cannot use it in tools
> +	# that expect to be able to chdir() to its value.
> +	if test -z "$GIT_PREFIX"; then
> +		GIT_PREFIX=.
> +		export GIT_PREFIX
> +	fi
> +}

Hmmm. Maybe we should export "." when there is no prefix? Maybe it's not
too late to change that aspect of GIT_PREFIX. We went through some
iteration back then for !alias.

Michael
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