From: Florent Kermarrec <florent@enjoy-digital.fr>
Date: Wed, 25 Mar 2020 15:36:53 +0000 (+0100)
Subject: build/tools: add replace_in_file function.
X-Git-Tag: 24jan2021_ls180~519
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=5bcf730c771af733e4603c10e2de5b4d9328b871;p=litex.git

build/tools: add replace_in_file function.
---

diff --git a/litex/build/tools.py b/litex/build/tools.py
index 030d32f5..16dd8af9 100644
--- a/litex/build/tools.py
+++ b/litex/build/tools.py
@@ -37,6 +37,17 @@ def write_to_file(filename, contents, force_unix=False):
         with open(filename, "w", newline=newline) as f:
             f.write(contents)
 
+def replace_in_file(filename, _from, _to):
+    # Read in the file
+    with open(filename, "r") as file :
+        filedata = file.read()
+
+    # Replace the target string
+    filedata = filedata.replace(_from, _to)
+
+    # Write the file out again
+    with open(filename, "w") as file:
+        file.write(filedata)
 
 def sub_rules(line, rules, max_matches=1):
     for pattern, color in rules: