[PATCH v2 1/2] xen/cppcheck: sort alphabetically cppcheck report entries

[Luca Fancellu <luca.fancellu@xxxxxxx>]

Sort alphabetically cppcheck report entries when producing the text
report, this will help comparing different reports and will group
together findings from the same file.

The sort operation is performed with two criteria, the first one is
sorting by misra rule, the second one is sorting by file.

Signed-off-by: Luca Fancellu <luca.fancellu@xxxxxxx>
---
Changes in v2:
 - Sort with two criteria, first misra rule, second filename
   (Michal, Jan)
---
---
 xen/scripts/xen_analysis/cppcheck_report_utils.py | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/xen/scripts/xen_analysis/cppcheck_report_utils.py 
b/xen/scripts/xen_analysis/cppcheck_report_utils.py
index 02440aefdfec..0b6cc72b9ac1 100644
--- a/xen/scripts/xen_analysis/cppcheck_report_utils.py
+++ b/xen/scripts/xen_analysis/cppcheck_report_utils.py
@@ -104,6 +104,13 @@ def cppcheck_merge_txt_fragments(fragments_list, 
out_txt_file, strip_paths):
                 for path in strip_paths:
                     text_report_content[i] = text_report_content[i].replace(
                                                                 path + "/", "")
+                    # Split by : separator
+                    text_report_content[i] = text_report_content[i].split(":")
+            # sort alphabetically for second field (misra rule) and as second
+            # criteria for the first field (file name)
+            text_report_content.sort(key = lambda x: (x[1], x[0]))
+            # merge back with : separator
+            text_report_content = [":".join(x) for x in text_report_content]
             # Write the final text report
             outfile.writelines(text_report_content)
     except OSError as e:
-- 
2.25.1