util/osrelease.py: Replaced string stripping with shlex.split()

- Replaced string stripping with `shlex.split()` to properly
handle values in the os-release file;
- This ensures cleaner and more accurate key-value assignments,
follwing a broader set of shell-like parsing rules;
- Add os-release file for Fedora CoreOS 40 for testing.

Signed-off-by: Renata Ravanelli <rravanel@redhat.com>

osbuild/util/osrelease.py

@@ -5,6 +5,7 @@ related documentation can be found in `os-release(5)`.
 """
 
 import os
+import shlex
 
 # The default paths where os-release is located, as per os-release(5)
 DEFAULT_PATHS = [
@@ -33,7 +34,10 @@ def parse_files(*paths):
                 if line[0] == "#":
                     continue
                 key, value = line.split("=", 1)
-                osrelease[key] = value.strip('"')
+                split_value = shlex.split(value)
+                if not split_value or len(split_value) > 1:
+                    raise ValueError(f"Key '{key}' has an empty value or more than one token: {value}")
+                osrelease[key] = split_value[0]
 
     return osrelease
 

test/data/os-release/fedora40

@@ -0,0 +1,22 @@
+NAME="Fedora Linux"
+VERSION="40.20241106.dev.0 (CoreOS)"
+ID=fedora
+VERSION_ID=40
+VERSION_CODENAME=""
+PLATFORM_ID="platform:f40"
+PRETTY_NAME="Fedora CoreOS 40.20241106.dev.0"
+ANSI_COLOR="0;38;2;60;110;180"
+LOGO=fedora-logo-icon
+CPE_NAME="cpe:/o:fedoraproject:fedora:40"
+HOME_URL="https://getfedora.org/coreos/"
+DOCUMENTATION_URL="https://docs.fedoraproject.org/en-US/fedora-coreos/"
+SUPPORT_URL="https://github.com/coreos/fedora-coreos-tracker/"
+BUG_REPORT_URL="https://github.com/coreos/fedora-coreos-tracker/"
+REDHAT_BUGZILLA_PRODUCT="Fedora"
+REDHAT_BUGZILLA_PRODUCT_VERSION=40
+REDHAT_SUPPORT_PRODUCT="Fedora"
+REDHAT_SUPPORT_PRODUCT_VERSION=40
+SUPPORT_END=2025-05-13
+VARIANT="CoreOS"
+VARIANT_ID=coreos
+OSTREE_VERSION='40.20241106.dev.0'