sbom: T8542: chnage result filenames to match ISO image filename

Author: c-po

scripts/image-build/build-vyos-image

@@ -729,23 +729,25 @@ Pin-Priority: 600
         # Now create SBOM
         syft_target_dir = 'chroot'
         syft_base_path = os.getcwd() + f'/{syft_target_dir}'
+        base_filename = iso_file.rstrip('.iso')
         cmd = [['syft', syft_target_dir,
                 '--source-name', 'VyOS', '--source-version', version,
-               '-o', f'cyclonedx-json=vyos-{version}.cdx.json',
-               '-o', f'spdx-json=vyos-{version}.spdx.json']]
+               '-o', f'cyclonedx-json={base_filename}.cdx.json',
+               '-o', f'spdx-json={base_filename}.spdx.json']]
 
         # syft bug for CycloneDX https://github.com/anchore/syft/issues/4592#issuecomment-4567247328
-        cmd.append(['sed', '-i', '-e', f's@{syft_base_path}@@g', f'vyos-{version}.cdx.json'])
-        cmd.append(['sed', '-i', '-e', f's@{syft_base_path}@//@g', f'vyos-{version}.spdx.json'])
+        cmd.append(['sed', '-i', '-e', f's@{syft_base_path}@@g', f'{base_filename}.cdx.json'])
+        cmd.append(['sed', '-i', '-e', f's@{syft_base_path}@//@g', f'{base_filename}.spdx.json'])
 
         for c in cmd:
-            print(c)
             with subprocess.Popen(c, stdout=subprocess.PIPE, stderr=subprocess.STDOUT,
                                   text=True, bufsize=1) as p:
                 for line in p.stdout:
                     sys.stdout.write(line)
                     sys.stdout.flush()
                 p.wait()
+        print("I: Finished SBOM generation")
+
 
     # If the flavor has `image_format = "iso"`, then the work is done.
     # If not, build additional flavors from the ISO.