Merge pull request #80 from nE0sIghT/feature/gzipped-config

[kconfig-hardened-check.git] / kconfig_hardened_check / __init__.py

diff --git a/kconfig_hardened_check/__init__.py b/kconfig_hardened_check/__init__.py
index cfe0877e93a05b2dc2b63f2f94a77bdf1cd8e8c2..c6c4349839f4ed4448a5f10e217d7135aedc9003 100644 (file)
--- a/kconfig_hardened_check/__init__.py
+++ b/kconfig_hardened_check/__init__.py
@@ -12,6 +12,7 @@ This module performs input/output.
 
 # pylint: disable=missing-function-docstring,line-too-long,invalid-name,too-many-branches,too-many-statements
 
+import gzip
 import sys
 from argparse import ArgumentParser
 from collections import OrderedDict
@@ -22,8 +23,16 @@ from .checks import add_kconfig_checks, add_cmdline_checks, normalize_cmdline_op
 from .engine import populate_with_data, perform_checks
 
 
+def _open(file: str, *args, **kwargs):
+    open_method = open
+    if file.endswith(".gz"):
+        open_method = gzip.open
+
+    return open_method(file, *args, **kwargs)
+
+
 def detect_arch(fname, archs):
-    with open(fname, 'r', encoding='utf-8') as f:
+    with _open(fname, 'rt', encoding='utf-8') as f:
         arch_pattern = re.compile("CONFIG_[a-zA-Z0-9_]*=y")
         arch = None
         for line in f.readlines():
@@ -40,7 +49,7 @@ def detect_arch(fname, archs):
 
 
 def detect_kernel_version(fname):
-    with open(fname, 'r', encoding='utf-8') as f:
+    with _open(fname, 'rt', encoding='utf-8') as f:
         ver_pattern = re.compile("# Linux/.* Kernel Configuration")
         for line in f.readlines():
             if ver_pattern.match(line):
@@ -58,7 +67,7 @@ def detect_kernel_version(fname):
 def detect_compiler(fname):
     gcc_version = None
     clang_version = None
-    with open(fname, 'r', encoding='utf-8') as f:
+    with _open(fname, 'rt', encoding='utf-8') as f:
         gcc_version_pattern = re.compile("CONFIG_GCC_VERSION=[0-9]*")
         clang_version_pattern = re.compile("CONFIG_CLANG_VERSION=[0-9]*")
         for line in f.readlines():
@@ -101,8 +110,8 @@ def print_unknown_options(checklist, parsed_options):
 def print_checklist(mode, checklist, with_results):
     if mode == 'json':
         output = []
-        for o in checklist:
-            output.append(o.json_dump(with_results))
+        for opt in checklist:
+            output.append(opt.json_dump(with_results))
         print(json.dumps(output))
         return
 
@@ -146,7 +155,7 @@ def print_checklist(mode, checklist, with_results):
 
 
 def parse_kconfig_file(parsed_options, fname):
-    with open(fname, 'r', encoding='utf-8') as f:
+    with _open(fname, 'rt', encoding='utf-8') as f:
         opt_is_on = re.compile("CONFIG_[a-zA-Z0-9_]*=[a-zA-Z0-9_\"]*")
         opt_is_off = re.compile("# CONFIG_[a-zA-Z0-9_]* is not set")
 
@@ -258,10 +267,12 @@ def main():
         parsed_kconfig_options = OrderedDict()
         parse_kconfig_file(parsed_kconfig_options, args.config)
         populate_with_data(config_checklist, parsed_kconfig_options, 'kconfig')
+
+        # populate the checklist with the kernel version data
         populate_with_data(config_checklist, kernel_version, 'version')
 
         if args.cmdline:
-            # populate the checklist with the parsed kconfig data
+            # populate the checklist with the parsed cmdline data
             parsed_cmdline_options = OrderedDict()
             parse_cmdline_file(parsed_cmdline_options, args.cmdline)
             populate_with_data(config_checklist, parsed_cmdline_options, 'cmdline')