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#!/usr/bin/env bash
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# SPDX-License-Identifier: GPL-2.0-or-later
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# Copyright (C) 2026 Bryan Joshua Pedini
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# fixture.sh - deterministic E2E fixture for RPM distros (dnf: Alma/Rocky/..., zypper: openSUSE)
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#
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# Builds three dummy packages with rpmbuild, installs version 1.0 of each, publishes
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# version 2.0 in a local file:// repo and registers that repo, so that the package
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# manager reports exactly these upgrades:
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#
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# su-dummy-a 1.0-1 -> 2.0-1 (noarch, Requires: su-dummy-b)
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# su-dummy-b 1.0-1 -> 2.0-1 (noarch)
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# su-dummy-c 1.0-1 -> 2.0-1 (ARCH-SPECIFIC, so the ".x86_64" suffix path is exercised)
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#
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# Optional (SU_FIXTURE_EXTRAS=1):
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# - installs su-dummy-d 1.0 (NOT upgradable): Requires su-dummy-a, /bin/sh (file dep),
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# "su-dummy-b >= 1.0" (versioned), "(su-dummy-c if su-dummy-b)" (rich dep) and rpmlib(...)
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# -> for reverse-dep / dependency-closure tests;
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# - publishes su-dummy-r 1.0 (Requires su-dummy-s) and su-dummy-s 1.0 in the repo, NOT installed
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# -> for install/remove/--clean-deps tests.
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#
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# Re-runnable: re-running resets everything to the "1.0 installed, 2.0 available" state.
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#
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# Usage (inside the container, as root): bash fixture.sh
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# docker run --rm -i -v <project>/discovery/rpm:/d:ro <image> bash /d/fixture.sh
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set -euo pipefail
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export LC_ALL=C
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T0=$SECONDS
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log() { printf '[fixture] %s\n' "$*" >&2; }
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die() { printf '[fixture] ERROR: %s\n' "$*" >&2; exit 1; }
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[ "$(id -u)" -eq 0 ] || die "must run as root"
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# ---- 1. backend detection ---------------------------------------------------
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BACKEND=
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if command -v zypper >/dev/null 2>&1; then BACKEND=zypper
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elif command -v dnf >/dev/null 2>&1; then BACKEND=dnf
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elif command -v yum >/dev/null 2>&1; then BACKEND=yum
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else die "neither zypper nor dnf/yum found"; fi
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log "backend=$BACKEND"
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TOP=/var/tmp/su-fixture # rpmbuild topdir
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REPO=/var/lib/su-dummy-repo # file:// repo (only 2.0 packages)
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SPEC_DIR=$TOP/SPECS
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# ---- 2. build tools ---------------------------------------------------------
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t=$SECONDS
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case $BACKEND in
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zypper) zypper --non-interactive --quiet install --no-recommends rpm-build createrepo_c >/dev/null ;;
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dnf|yum) "$BACKEND" -y -q install --setopt=install_weak_deps=False rpm-build createrepo_c >/dev/null ;;
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esac
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command -v rpmbuild >/dev/null || die "rpmbuild missing after install"
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command -v createrepo_c >/dev/null || die "createrepo_c missing after install"
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log "build tools installed in $((SECONDS - t))s"
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# ---- 3. build RPMs ----------------------------------------------------------
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rm -rf "$TOP" "$REPO"
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mkdir -p "$TOP"/{BUILD,BUILDROOT,RPMS,SRPMS,SOURCES,SPECS} "$REPO"
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# mkspec <name> <version> <arch|noarch> <extra spec header lines...>
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mkspec() {
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local name=$1 ver=$2 arch=$3; shift 3
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local f=$SPEC_DIR/$name-$ver.spec
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{
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echo "Name: $name"
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echo "Version: $ver"
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echo "Release: 1"
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echo "Summary: skeptical-updater dummy $name (v$ver)"
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echo "License: MIT"
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[ "$arch" = noarch ] && echo "BuildArch: noarch"
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local l; for l in "$@"; do echo "$l"; done
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echo "%global debug_package %{nil}"
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echo "%description"
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echo "Dummy package $name version $ver for skeptical-updater tests."
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echo ""
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echo "Second paragraph of $name $ver (blank line above on purpose)."
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echo "%install"
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echo "mkdir -p %{buildroot}/usr/share/su-dummy"
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echo "echo '$name $ver' > %{buildroot}/usr/share/su-dummy/$name"
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echo "%files"
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echo "/usr/share/su-dummy/$name"
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} > "$f"
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printf '%s\n' "$f"
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}
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build() { rpmbuild -bb --quiet --define "_topdir $TOP" "$1" >/dev/null 2>"$TOP/rpmbuild.err" \
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|| { cat "$TOP/rpmbuild.err" >&2; die "rpmbuild failed for $1"; }; }
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t=$SECONDS
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for v in 1.0 2.0; do
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build "$(mkspec su-dummy-a $v noarch 'Requires: su-dummy-b')"
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build "$(mkspec su-dummy-b $v noarch)"
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build "$(mkspec su-dummy-c $v arch)"
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done
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if [ "${SU_FIXTURE_EXTRAS:-0}" = 1 ]; then
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build "$(mkspec su-dummy-s 1.0 noarch)" # published in the repo, NOT installed
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build "$(mkspec su-dummy-r 1.0 noarch 'Requires: su-dummy-s')" # (used to test remove/--clean-deps)
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build "$(mkspec su-dummy-d 1.0 noarch \
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'Requires: su-dummy-a' \
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'Requires: /bin/sh' \
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'Requires: su-dummy-b >= 1.0' \
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'Requires: (su-dummy-c if su-dummy-b)' \
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'Requires: rpmlib(CompressedFileNames)')"
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fi
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log "rpmbuild done in $((SECONDS - t))s"
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# ---- 4. install 1.0 (rpm directly: distro-agnostic, resets to 1.0 on re-run) ----
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shopt -s nullglob
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v1=( "$TOP"/RPMS/*/su-dummy-[abc]-1.0-1.*.rpm )
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[ "${#v1[@]}" -eq 3 ] || die "expected 3 built 1.0 rpms, got ${#v1[@]}"
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rpm -Uvh --oldpackage --replacepkgs "${v1[@]}" >/dev/null
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if [ "${SU_FIXTURE_EXTRAS:-0}" = 1 ]; then
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rpm -Uvh --oldpackage --replacepkgs "$TOP"/RPMS/noarch/su-dummy-d-1.0-1.*.rpm >/dev/null
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fi
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# ---- 5. publish 2.0 as a local repo -------------------------------------------
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v2=( "$TOP"/RPMS/*/su-dummy-[abc]-2.0-1.*.rpm )
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[ "${#v2[@]}" -eq 3 ] || die "expected 3 built 2.0 rpms, got ${#v2[@]}"
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cp "${v2[@]}" "$REPO"/
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if [ "${SU_FIXTURE_EXTRAS:-0}" = 1 ]; then cp "$TOP"/RPMS/noarch/su-dummy-[rs]-1.0-1.*.rpm "$REPO"/; fi
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createrepo_c --quiet "$REPO" >/dev/null
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# ---- 6. register repo ---------------------------------------------------------
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case $BACKEND in
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zypper)
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zypper --non-interactive --quiet removerepo su-dummy >/dev/null 2>&1 || true
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zypper --non-interactive --quiet addrepo --no-gpgcheck --no-check --refresh "file://$REPO" su-dummy >/dev/null
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t=$SECONDS
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zypper --non-interactive --quiet refresh su-dummy >/dev/null
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;;
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dnf|yum)
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cat > /etc/yum.repos.d/su-dummy.repo <<REPOEOF
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[su-dummy]
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name=skeptical-updater dummy packages
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baseurl=file://$REPO
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enabled=1
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gpgcheck=0
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repo_gpgcheck=0
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metadata_expire=0
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REPOEOF
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t=$SECONDS
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"$BACKEND" -q makecache --repo su-dummy >/dev/null
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;;
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esac
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log "repo refresh in $((SECONDS - t))s"
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# ---- 7. verify: the three must be listed as upgradable --------------------------
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want="su-dummy-a su-dummy-b su-dummy-c"
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case $BACKEND in
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zypper) listing=$(zypper --non-interactive --quiet list-updates 2>&1 || true) ;;
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dnf|yum) listing=$("$BACKEND" -q check-update 2>&1 || true) ;;
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esac
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bad=0
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for p in $want; do
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printf '%s\n' "$listing" | grep -Eq "(^|[| ])$p([. ]|$)" || { log "NOT listed as upgradable: $p"; bad=1; }
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done
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if [ "$bad" -ne 0 ]; then printf '%s\n' "$listing" >&2; die "fixture verification failed"; fi
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log "OK: su-dummy-{a,b,c} 1.0 installed and 2.0 offered by repo 'su-dummy' (total ${SECONDS}s, since start $((SECONDS - T0))s)"
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