Replace metarecover bash script by a more flexible python version in order to use python for each tools

tools/metarecover.py

@@ -0,0 +1,25 @@
+from git import Repo,Git
+import io
+r=Repo(path=".")
+l=[item for item in r.index.diff(None) if item.a_path.endswith(".dat") and item.change_type=="M"]
+len(l)
+for i in l:
+  print(i.a_path)
+  g=Git(Repo.git_dir)
+  with io.StringIO(g.execute(["git" ,"--no-pager", "show", f"HEAD~1:{i.a_path}"])) as old:
+    with open(i.a_path,mode="r+") as new:
+      with io.StringIO(new.read()) as copy:
+        new.seek(0)
+        line=old.readline()
+        while line and line.startswith("#"):
+          new.write(line)
+          line=old.readline()
+        line=copy.readline()
+        end=False
+        while line:
+          if not end and not line.startswith("#"):
+            end=True
+          if end:
+            new.write(line)
+          line=copy.readline()
+      new.truncate()

tools/metarecover.sh

@@ -1,10 +0,0 @@
-#!/bin/bash
-files=$(git status -s | grep " M "  | cut -c4- | grep 'static/data/')
-for file in $files; do
-  show="$(git --no-pager show HEAD~1:$file)"
-  IFS=$'\n' lines=($show)
-  for (( i=0; i<=5; i++ )) ;do  
-    line=${lines[i]}
-    sed -i "$((i+1))s|^.*$|$line|" $file
-  done
-done