From 48df5fbbd200e35f51d81846428271edf386fbcd Mon Sep 17 00:00:00 2001
From: isa <isa@subgraph.com>
Date: Tue, 13 Feb 2024 16:07:59 -0500
Subject: [PATCH] Commit the working code

---
 bisdef.py | 77 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 77 insertions(+)
 create mode 100644 bisdef.py

diff --git a/bisdef.py b/bisdef.py
new file mode 100644
index 0000000..0e6b46d
--- /dev/null
+++ b/bisdef.py
@@ -0,0 +1,77 @@
+#!/usr/bin/python
+import sys, os, math, linecache, re
+
+# change numerator and denominator variables progressively to perform a proper bissection search manually
+numerator = 1
+denominator = 2
+
+defconfig_file_name = "defconfig_clean"
+
+def usage():
+    print("""Usage: bissect_conf [<input_comparison_file> <config_in>]
+
+Will output a defconfig file with the changes detected from the comparison_file to the config_in file
+Example usage:
+ $ bissect_conf comparison_file defconfig_not_working
+""")
+    sys.exit(0)
+
+def main():
+    global merge_style
+    outup_f = open("defconfig", "w")
+
+
+    # parse command line args
+    if ("-h" in sys.argv or "--help" in sys.argv):
+        usage()
+
+    compare_file = open("compare.defconfig")
+    compare_file_data = compare_file.readlines()
+    compare_file_num = len(compare_file_data)
+
+    defconfig_file = open(defconfig_file_name)
+    defconfig_data = defconfig_file.readlines()
+
+    # split into number of chunks equal to denominator
+    denomi_lines = math.ceil(compare_file_num/denominator)
+
+    for i in range(denomi_lines*(numerator-1), denomi_lines*(numerator)): # first line is at 1
+        compare_file_line = compare_file_data[i]
+
+##############################################################################################################
+        # the comparison file describes a change which starts with a "-"
+        if compare_file_line.startswith("-"):
+            compare_file_line = compare_file_line[1:]
+            current_config_name = "CONFIG_" + compare_file_line.split(" ")[0]
+
+            # cycle through entire defconfig file and search for config_name
+            for j in range(0, len(defconfig_data)):
+                if current_config_name+" " in defconfig_data[j] or current_config_name+"=" in defconfig_data[j]:
+                    defconfig_data[j] = current_config_name+"="+compare_file_line.split(" ")[1]
+
+                if j == len(defconfig_data) - 1:
+                    defconfig_data.append(current_config_name+"="+compare_file_line.split(" ")[1])
+
+##############################################################################################################
+        # the comparison file describes a change which starts with a "+"
+        elif compare_file_line.startswith("+"): 
+            compare_file_line = compare_file_line[1:]
+            current_config_name = "CONFIG_" + compare_file_line.split(" ")[0]
+            #current_config_name = current_config_name.strip()
+
+            # cycle through entire defconfig file and search for config_name
+            for j in range(0, len(defconfig_data)):
+                if current_config_name in defconfig_data[j]:
+                    defconfig_data[j] = ""
+
+##############################################################################################################
+        else:
+            current_config_name = "CONFIG_" + compare_file_line.split(" ")[1]
+            print(compare_file_line)
+            for j in range(0, len(defconfig_data)):
+                if current_config_name+" " in defconfig_data[j] or current_config_name+"=" in defconfig_data[j]:
+                    defconfig_data[j] = current_config_name+"="+compare_file_line.split(" ")[2]+"\n"
+
+    outup_f.writelines(defconfig_data)
+
+main()
\ No newline at end of file