Packit: fetch copr rpm version from Cargo.toml

Current installation of nv from podman-next is failing because it's
expecting aardvark-dns >= 102:1.16 while current av on podman-next is
only 102:1.15 . From the latest build log, that seems to be because
Packit is determining 1.15.0 as the version for av and 1.16.0 as the
version for nv.

This commit includes a script to fetch the version directly from Cargo.toml. A
similar script will be added to nv as well, thus ensuring both nv and av
major.minor versions are in sync for copr rpms as well.

Signed-off-by: Lokesh Mandvekar <lsm5@redhat.com>

.packit-copr-rpm.sh

@@ -0,0 +1,36 @@
+#!/usr/bin/env bash
+
+# This script handles any custom processing of the spec file using the `fix-spec-file`
+# action in .packit.yaml. These steps only work on copr builds, not on official
+# Fedora builds.
+
+set -exo pipefail
+
+PACKAGE=aardvark-dns
+SPEC_FILE=rpm/"$PACKAGE".spec
+
+# Get Version from HEAD
+VERSION=$(grep '^version' Cargo.toml | cut -d\" -f2)
+
+# RPM Version can't take "-"
+RPM_VERSION="${VERSION//-/\~}"
+
+# Generate source tarball from HEAD
+git-archive-all -C "$(git rev-parse --show-toplevel)" --prefix="$PACKAGE"-"$VERSION"/ rpm/"$PACKAGE"-"$VERSION".tar.gz
+
+# RPM Spec modifications
+
+# Use the Version from HEAD in rpm spec
+sed -i "s/^Version:.*/Version: $RPM_VERSION/" "$SPEC_FILE"
+
+# Use Packit's supplied variable in the Release field in rpm spec
+sed -i "s/^Release:.*/Release: $PACKIT_RPMSPEC_RELEASE%{?dist}/" "$SPEC_FILE"
+
+# Use above generated tarball as Source in rpm spec
+sed -i "s/^Source0:.*.tar.gz/Source0: $PACKAGE-$VERSION.tar.gz/" $SPEC_FILE
+
+# Don't need Source1 for copr builds
+sed -i "/^Source1/d" "$SPEC_FILE"
+
+# Update setup macro to use the correct build dir
+sed -i "s/^%autosetup.*/%autosetup -Sgit -n %{name}-$VERSION/" "$SPEC_FILE"

.packit.yaml

@@ -38,9 +38,15 @@ packages:
 
 srpm_build_deps:
   - cargo
+  - git-archive-all
   - make
   - openssl-devel
 
+# https://packit.dev/docs/configuration/actions
+# fix-spec-file only operates on copr builds and doesn't affect official distro builds
+actions:
+  fix-spec-file: "bash .packit-copr-rpm.sh"
+
 jobs:
   - job: copr_build
     trigger: pull_request