From 7250a77e8d8bb24d7798ad0d853a84c8981739cc Mon Sep 17 00:00:00 2001
From: Luca Boccassi <bluca@debian.org>
Date: Tue, 19 Aug 2025 12:32:00 +0100
Subject: [PATCH] test: also edit /etc/os-release if it's not a symlink when
 patching /usr/lib/os-release (#38628)

mkosi patches up /etc/os-release to add local IDs and fixup certain
issues, so when tests patch /usr/lib/ on the fly, copy to the version in
/etc/ too to avoid test failures when querying

6370s 10/98 systemd:integration-tests / TEST-07-PID1 FAIL 31.03s exit
status 1
6370s 25/98 systemd:integration-tests / TEST-29-PORTABLE FAIL 12.76s
exit status 1
6370s 33/98 systemd:integration-tests / TEST-43-PRIVATEUSER-UNPRIV FAIL
6.57s exit status 1
6370s 37/98 systemd:integration-tests / TEST-50-DISSECT FAIL 16.97s exit
status 1

This is particularly an issue when running these tests on debian unstable,
where mkosi has to fixup os-release to make it valid and avoid further
breakages:

https://github.com/systemd/mkosi/blob/main/mkosi/distributions/debian.py#L234
(cherry picked from commit b1cd38e893c5a0d353e2112acfc701ed29449c5e)
---
 mkosi/mkosi.images/minimal-0/mkosi.postinst |  3 +++
 mkosi/mkosi.images/minimal-1/mkosi.postinst |  3 +++
 test/units/TEST-50-DISSECT.sysext.sh        | 10 ++++++++++
 3 files changed, 16 insertions(+)

diff --git a/mkosi/mkosi.images/minimal-0/mkosi.postinst b/mkosi/mkosi.images/minimal-0/mkosi.postinst
index a66cf68465a..8b009f5012f 100755
--- a/mkosi/mkosi.images/minimal-0/mkosi.postinst
+++ b/mkosi/mkosi.images/minimal-0/mkosi.postinst
@@ -8,4 +8,7 @@ cat >>"$BUILDROOT/usr/lib/os-release" <<EOF
 MARKER=1
 PORTABLE_PREFIXES=app0 minimal minimal-app0
 EOF
+if [ ! -L "$BUILDROOT/etc/os-release" ]; then
+    cp "$BUILDROOT/usr/lib/os-release" "$BUILDROOT/etc/os-release"
+fi
 cp "$BUILDROOT/usr/lib/systemd/system/minimal-app0.service" "$BUILDROOT/usr/lib/systemd/system/minimal-app0-foo.service"
diff --git a/mkosi/mkosi.images/minimal-1/mkosi.postinst b/mkosi/mkosi.images/minimal-1/mkosi.postinst
index e2d08d04d88..a971748ad96 100755
--- a/mkosi/mkosi.images/minimal-1/mkosi.postinst
+++ b/mkosi/mkosi.images/minimal-1/mkosi.postinst
@@ -8,4 +8,7 @@ cat >>"$BUILDROOT/usr/lib/os-release" <<EOF
 MARKER=2
 PORTABLE_PREFIXES=app0 minimal minimal-app0
 EOF
+if [ ! -L "$BUILDROOT/etc/os-release" ]; then
+    cp "$BUILDROOT/usr/lib/os-release" "$BUILDROOT/etc/os-release"
+fi
 cp "$BUILDROOT/usr/lib/systemd/system/minimal-app0.service" "$BUILDROOT/usr/lib/systemd/system/minimal-app0-bar.service"
diff --git a/test/units/TEST-50-DISSECT.sysext.sh b/test/units/TEST-50-DISSECT.sysext.sh
index 6bb106bac26..5302314d261 100755
--- a/test/units/TEST-50-DISSECT.sysext.sh
+++ b/test/units/TEST-50-DISSECT.sysext.sh
@@ -89,6 +89,11 @@ prepare_root() {
         echo "VERSION=1.2.3"
     } >"$root/usr/lib/os-release"
 
+    if [[ -e $root/etc/os-release ]] && [[ ! -L $root/etc/os-release ]]; then
+        mv "$root/etc/os-release" "$root/etc/os-release.orig"
+        cp "$root/usr/lib/os-release" "$root/etc/os-release"
+    fi
+
     prepend_trap "cleanup_os_release ${root@Q}"
 }
 
@@ -103,6 +108,11 @@ cleanup_os_release() {
         # shellcheck disable=SC2317 # It is not unreachable, used in a trap couple lines above.
         mv "$root/usr/lib/os-release.orig" "$root/usr/lib/os-release"
     fi
+    # shellcheck disable=SC2317 # It is not unreachable, used in a trap couple lines above.
+    if [[ -e $root/etc/os-release.orig ]]; then
+        # shellcheck disable=SC2317 # It is not unreachable, used in a trap couple lines above.
+        mv "$root/etc/os-release.orig" "$root/etc/os-release"
+    fi
 }
 
 prepare_extension_image() {
-- 
2.47.3