On Tue, 17 Oct 2017 10:48:03 +0200
Ludovic Courtès <ludo@gnu.org> wrote:

> Hello,
> 
> Here’s a ready-to-merge patch series.  Once applied, nars
> (aka. “substitutes”) are downloaded and extracted when a VCS checkout
> fails.  This will address cases such as the recent Guile-Git repository
> renaming for people who have disabled substitutes.
> 
> I’m Cc’ing 宋文武 because this also moves the progress-report code to
> a new (guix progress) module.
> 
> Feedback welcome!
> 
> Ludo’.
> 
> Ludovic Courtès (4):
>   download: Remove old-Guile leftovers.
>   download: Make 'http-fetch' public.
>   Add (guix progress).
>   download: Download a nar when a VCS checkout fails.
> 
>  Makefile.am                 |   2 +
>  guix/build/download-nar.scm | 125 ++++++++++++++++++++++++
>  guix/build/download.scm     | 216 +++++------------------------------------
>  guix/cvs-download.scm       |  38 ++++++--
>  guix/git-download.scm       |  37 +++++--
>  guix/hg-download.scm        |  36 +++++--
>  guix/progress.scm           | 228 ++++++++++++++++++++++++++++++++++++++++++++
>  guix/scripts/download.scm   |   4 +-
>  guix/scripts/substitute.scm |   5 +-
>  guix/utils.scm              |  28 +-----
>  10 files changed, 470 insertions(+), 249 deletions(-)
>  create mode 100644 guix/build/download-nar.scm
>  create mode 100644 guix/progress.scm
> 

This all sounds good to me Ludo, and I didn't spot anything of note
when looking through the patches.