[PULL 13/28] gitlab: fall back to commit hash in qemu-setup filename

["Alex Bennée" <alex.bennee@linaro.org>]

From: Stefan Hajnoczi <stefanha@redhat.com>

Personal repos may not have release tags (v6.0.0, v6.1.0, etc) and this
causes cross_system_build_job to fail when pretty-printing a unique
qemu-setup-*.exe name:

  version="$(git describe --match v[0-9]*)";
             ^^^^^^^^^^ fails ^^^^^^^^^^^
  mv -v qemu-setup*.exe qemu-setup-${version}.exe;

Fall back to the short commit hash if necessary. This fixes CI failures
that Greg Kurz and I experienced in our personal repos.

Cc: Greg Kurz <groug@kaod.org>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Greg Kurz <groug@kaod.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20220125173454.10381-1-stefanha@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20220204204335.1689602-14-alex.bennee@linaro.org>

diff --git a/.gitlab-ci.d/crossbuild-template.yml b/.gitlab-ci.d/crossbuild-template.yml
index 10d22dcf6c..29c3c2b826 100644
--- a/.gitlab-ci.d/crossbuild-template.yml
+++ b/.gitlab-ci.d/crossbuild-template.yml
@@ -14,7 +14,7 @@
     - make -j$(expr $(nproc) + 1) all check-build $MAKE_CHECK_ARGS
     - if grep -q "EXESUF=.exe" config-host.mak;
       then make installer;
-      version="$(git describe --match v[0-9]*)";
+      version="$(git describe --match v[0-9]* 2>/dev/null || git rev-parse --short HEAD)";
       mv -v qemu-setup*.exe qemu-setup-${version}.exe;
       fi
 
-- 
2.30.2