Here's an example of librefetch being triggered by `updpkgsums` for libre/dbscripts:

==> Retrieving sources...
  -> Downloading dbscripts-20170120.2.tar.gz...
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
  0     0    0     0    0     0      0      0 --:--:--  0:00:01 --:--:--     0
curl: (22) The requested URL returned error: 404 Not Found
==> Making source: dbscripts 20170120.2-1 (Fri Jan 20 18:41:45 EST 2017)
==> Checking source dependencies...
==> Retrieving sources...
  -> Cloning dbscripts-20170120.2 git repo...
Cloning into bare repository '/home/luke/packages/srcdest/dbscripts-20170120.2'...
remote: Counting objects: 5919, done.
remote: Compressing objects: 100% (1939/1939), done.
Receiving objects: 100% (5919/5919), done.
Resolving deltas: 100% (3939/3939), done.
==> Validating source files with md5sums...
    dbscripts-20170120.2 ... Skipped
==> Extracting sources...
  -> Creating working copy of  git repo...
Cloning into 'dbscripts-20170120.2'...
done.
Switched to a new branch 'makepkg'
==> Starting prepare()...
==> Starting build()...
==> Starting check()...
==> Entering fakeroot environment...
==> Starting package()...
==> Tidying install...
  -> Purging unwanted files...
==> Checking for packaging issue...
==> WARNING: backup entry file not in package : etc/dbscripts/config
==> WARNING: backup entry file not in package : etc/dbscripts/config.testing
==> WARNING: backup entry file not in package : etc/dbscripts/db-import-archlinux.conf
==> WARNING: backup entry file not in package : etc/dbscripts/db-import-archlinuxarm.conf
==> Creating package "dbscripts"...
  -> Generating .PKGINFO file...
  -> Generating .BUILDINFO file...
  -> Generating .MTREE file...
  -> Compressing package...
==> Leaving fakeroot environment.
==> Finished making: dbscripts 20170120.2-1 (Fri Jan 20 18:41: 51 EST 2017)
==> Generating checksums for source files...