Re: [GSoC][PATCH v5 2/3] credential-cache: use XDG_CACHE_HOME for socket

> Make git-credential-cache follow the XDG base path specification by
> default. This increases consistency with other applications and helps
> keep clutter out of users' home directories.
> 
> Check the old socket location, ~/.git-credential-cache/, and use
> ~/.git-credential-cache/socket if that directory exists rather than
> forcing users who have used `git credential-cache` before to migrate to
> the new XDG compliant location.
> Otherwise use the socket $XDG_CACHE_HOME/git/credential/socket following
> XDG base path specification. Use the subdirectory credential/ in case
> other files are cached under $XDG_CACHE_HOME/git/ in the future and to
> make the socket's purpose clear.
> 
> Signed-off-by: Devin Lehmacher <lehmacdj@gmail.com>
> ---
>  Documentation/git-credential-cache.txt | 11 +++++++----
>  credential-cache.c                     | 15 ++++++++++++++-
>  2 files changed, 21 insertions(+), 5 deletions(-)
> 
> diff --git a/Documentation/git-credential-cache.txt b/Documentation/git-credential-cache.txt
> index 96208f822..2b8582639 100644
> --- a/Documentation/git-credential-cache.txt
> +++ b/Documentation/git-credential-cache.txt
> @@ -33,10 +33,13 @@ OPTIONS
>  --socket <path>::
>  
>  	Use `<path>` to contact a running cache daemon (or start a new
> -	cache daemon if one is not started). Defaults to
> -	`~/.git-credential-cache/socket`. If your home directory is on a
> -	network-mounted filesystem, you may need to change this to a
> -	local filesystem. You must specify an absolute path.
> +	cache daemon if one is not started).
> +	Defaults to `$XDG_CACHE_HOME/git/credential/socket` unless

> +	`~/.git-credential-cache/` exists in which case
> +	`~/.git-credential-cache/socket` is used instead.
> +	If your home directory is on a network-mounted filesystem, you
> +	may need to change this to a local filesystem. You must specify
> +	an absolute path.