Attempt to update packit flow to build in COPR

No idea if this will really work, but at least `packit srpm`
does work now.

ci/make-git-snapshot.sh

@@ -1,31 +1,23 @@
-#!/bin/sh
+#!/bin/bash
+set -xeuo pipefail
 
-srcdir=$1
-shift
-PKG_VER=$1
-shift
-GITREV=$1
-shift
+TOP=$(git rev-parse --show-toplevel)
+GITREV=$(git rev-parse HEAD)
+gitdescribe=$(git describe --always --tags $GITREV)
+version=$(echo "$gitdescribe" | sed -e 's,-,\.,g' -e 's,^v,,')
+name=$(basename $(pwd))
+PKG_VER="${name}-${version}"
 
 TARFILE=${PKG_VER}.tar
 TARFILE_TMP=${TARFILE}.tmp
 
-set -x
-set -e
-
-test -n "${srcdir}"
-test -n "${PKG_VER}"
-test -n "${GITREV}"
-
-TOP=$(git rev-parse --show-toplevel)
-
 echo "Archiving ${PKG_VER} at ${GITREV} to ${TARFILE_TMP}"
 (cd ${TOP}; git archive --format=tar --prefix=${PKG_VER}/ ${GITREV}) > ${TARFILE_TMP}
 ls -al ${TARFILE_TMP}
 (cd ${TOP}; git submodule status) | while read line; do
     rev=$(echo ${line} | cut -f 1 -d ' '); path=$(echo ${line} | cut -f 2 -d ' ')
     echo "Archiving ${path} at ${rev}"
-    (cd ${srcdir}/${path}; git archive --format=tar --prefix=${PKG_VER}/${path}/ ${rev}) > submodule.tar
+    (cd ${TOP}/${path}; git archive --format=tar --prefix=${PKG_VER}/${path}/ ${rev}) > submodule.tar
     tar -A -f ${TARFILE_TMP} submodule.tar
     rm submodule.tar
 done