added pip hook to mommify newly installed packages

python_mommy_venv/__main__.py

@@ -30,7 +30,7 @@ def write_current_config():
         f.write(data)
 
 
-TEMPLATE = """#!{inner_bin}
+WRAPPER_TEMPLATE = """#!{inner_bin}
 # -*- coding: utf-8 -*-
 
 import sys, subprocess
@@ -46,6 +46,53 @@ print(get_response(Situation.POSITIVE if code == 0 else Situation.NEGATIVE))
 exit(code=code)
 """
 
+PIP_HOOK = """# GENERATED BY MOMMY
+    code = main()
+
+    from pathlib import Path
+
+    bin_path = Path(".venv", "bin")
+
+    python_interpreter_wrappers = []
+    for path in bin_path.iterdir():
+        if path.is_symlink() and path.name.startswith("inner_"):
+            python_interpreter_wrappers.append(path.name.replace("inner_", "", 1))
+
+    for path in bin_path.iterdir():
+        if path.is_symlink():
+            continue
+        if path.name in python_interpreter_wrappers:
+            continue
+
+        text: str
+        with path.open("r") as f:
+            text = f.read()
+
+        first_line = text.split("\\n")[0]
+        if not ("inner_" in first_line and first_line.startswith("#!")):
+            continue 
+        
+        print(f"mommifying " + str(path))
+
+        text = text.replace("inner_", "", 1)
+        with path.open("w") as f:
+            f.write(text)
+
+    sys.exit(code)"""
+
+def mommify_pip(path: Path):
+    text: str
+    with path.open("r") as f:
+        text = f.read()
+
+    if "# GENERATED BY MOMMY" in text:
+        print(f"pip hook already installed in {path}")
+        return
+    
+    print(f"installing pip hook in {path}")
+    text = text.replace("sys.exit(main())", PIP_HOOK, 1)
+    with path.open("w") as f:
+        f.write(text)
 
 def mommify_venv():
     v = ".venv"
@@ -58,6 +105,8 @@ def mommify_venv():
 
     for path in bin_path.iterdir():
         if not path.is_symlink():
+            if path.name.startswith("pip"):
+                mommify_pip(path)
             continue
         
         name = path.name
@@ -85,6 +134,6 @@ def mommify_venv():
         # creating the wrapper string
         print("writing wrapper script")
         with path.open("w") as f:
-            f.write(TEMPLATE.format(inner_bin=str(inner_bin)))
+            f.write(WRAPPER_TEMPLATE.format(inner_bin=str(inner_bin)))
         print("making wrapper script executable")
         path.chmod(path.stat().st_mode | stat.S_IEXEC)