[Buildroot] [PATCH 2/2] dl-wrapper: Fix support for URIs containing '+'

[Yann E. MORIN <yann.morin.1998@free.fr>]

Robert, All,

On 2018-06-04 14:32 +0100, Robert Beckett spake thusly:
> '+' is a valid character in a url. The current dl-wrapper gets the
> URI scheme by dropping everything after the last '+' character, with
> the intension of finding 'git' from e.g. 'git+https://uri'.
> 
> If a uri has a '+' anywhere in it, it ends up using too much of the
> string as a scheme, and fails to match the handler properly.
> 
> An example of where this form of URI is used is when using deploy tokens
> in gitlab. It uses a form like https://<username>:<password>@gitlab.com/<group>/<repo.git>
> where username for deploy token is of the form 'gitlab+deploy-token-<number>'.
> 
> Use the %% operator to search backwards until the last '+' character when
> dropping the rest of the string as we know that the first '+'
> in the string should be the scheme.
> 
> Signed-off-by: Robert Beckett <bbeckett@netvu.org.uk>

Acked-by: "Yann E. MORIN" <yann.morin.1998@free.fr>

Regards,
Yann E. MORIN.

> ---
>  support/download/dl-wrapper | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/support/download/dl-wrapper b/support/download/dl-wrapper
> index 8d6365e..4059c37 100755
> --- a/support/download/dl-wrapper
> +++ b/support/download/dl-wrapper
> @@ -88,7 +88,7 @@ main() {
>      download_and_check=0
>      rc=1
>      for uri in "${uris[@]}"; do
> -        backend=${uri%+*}
> +        backend=${uri%%+*}
>          case "${backend}" in
>              git|svn|cvs|bzr|file|scp|hg) ;;
>              *) backend="wget" ;;
> -- 
> 2.7.4
> 

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