Create TMT plans

.fmf/version

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+1

plans/all_tests.fmf

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+summary: All available tests
+discover:
+    how: fmf
+execute:
+    how: tmt
+adjust:
+    prepare+:
+        - name: Add secondary architecture RPMs
+          how: shell
+          script: ./plans/provide_secondary_arch_rpms.sh
+    when: distro == fedora and arch == x86_64

plans/ci.fmf

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+summary: CI Gating Plan
+discover:
+    how: fmf
+    filter: 'tag: Fedora-CI-gating'
+execute:
+    how: tmt
+adjust:
+    prepare+:
+        - name: Add secondary architecture RPMs
+          how: shell
+          script: ./plans/provide_secondary_arch_rpms.sh
+    when: distro == fedora and arch == x86_64

plans/provide_secondary_arch_rpms.sh

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+#!/bin/bash
+
+# Fedora CI testing systems don't provide a repository with the i686
+# RPMs of the build being tests. As a consequence, most
+#   dnf install -y <some-gcc-rpm>.i686
+# commands (whether being run by a test or by TMT's prepare) will probably
+# fail on a version mismatch with present x86_64 gcc RPMs. To prevent such
+# failures we provide this script which we recommend to include in every
+# Fedora CI test plan.
+#
+# Implementation notes:
+#
+# * The gcc build being tested in Fedora CI is given via KOJI_TASK_ID. See
+#   https://github.com/fedora-ci/dist-git-pipeline/pull/50 for details.
+#
+# * Currently this script just downloads and installs the i686 RPMs. It
+#   would not be sufficient for tests that uninstall and reinstall those
+#   RPMs. If such a test appears, this script should create a repository.
+#
+# * Fedora CI testing systems seem to have extremely small RAM-based /tmp,
+#   unable to host all the downloaded RPMs, and no other "real" filesystem
+#   than "/". That's the reason for using
+#     mktemp -d --tmpdir=/
+
+set -x
+
+true "V-V-V-V-V-V-V-V-V-V-V-V-V-V-V-V-V-V-V-V-V-V-V-V-V-V-V-V-V-V-V-V-V-V-V"
+
+echo "KOJI_TASK_ID=$KOJI_TASK_ID"
+
+. /etc/os-release
+
+echo "ID=$ID"
+echo "arch=$(arch)"
+echo "KOJI_TASK_ID=$KOJI_TASK_ID"
+
+if [[ "$ID" = fedora ]] && [[ "$(arch)" = x86_64 ]] && [[ -n "$KOJI_TASK_ID" ]]; then
+
+    if tmpd=$(mktemp -d --tmpdir=/) && pushd $tmpd; then
+
+        # Download
+        rpm -q koji || dnf -y install koji
+        koji download-task $KOJI_TASK_ID --noprogress --arch={x86_64,i686,noarch}
+
+        # Remove conflicting RPMs
+        rm -f *debuginfo* *debugsource*
+        rm -f gcc-[0-9]*.i686.*
+        rm -f *docs*.i686.*
+
+        # Install
+        ls
+        dnf -y install *.rpm
+
+        # Clean up
+        popd
+        rm -rf $tmpd
+    fi
+
+else
+    echo "Not applicable"
+fi
+
+true "^-^-^-^-^-^-^-^-^-^-^-^-^-^-^-^-^-^-^-^-^-^-^-^-^-^-^-^-^-^-^-^-^-^-^"