Allow run recent command for REPL using shell integration (microsoft#…

…22720)

Resolves: microsoft#22647

Allow access to recent command "Terminal: Run recent command:" for
Python REPL users.
Due to GNU readline, Mac and Linux Users will now be able to see their
REPL command history.

Blocked on recent history support for Windows:
- Would have to go through VS Code to pick up the command or via native
VS Code REPL.

package.json

@@ -1601,7 +1601,7 @@
         "@types/xml2js": "^0.4.2",
         "@typescript-eslint/eslint-plugin": "^3.7.0",
         "@typescript-eslint/parser": "^3.7.0",
-        "@vscode/test-electron": "^2.3.4",
+        "@vscode/test-electron": "^2.3.8",
         "@vscode/vsce": "^2.18.0",
         "bent": "^7.3.12",
         "chai": "^4.1.2",
@@ -1643,13 +1643,13 @@
         "typescript": "4.5.5",
         "uuid": "^8.3.2",
         "webpack": "^5.76.0",
-        "worker-loader": "^3.0.8",
         "webpack-bundle-analyzer": "^4.5.0",
         "webpack-cli": "^4.9.2",
         "webpack-fix-default-import-plugin": "^1.0.3",
         "webpack-merge": "^5.8.0",
         "webpack-node-externals": "^3.0.0",
         "webpack-require-from": "^1.8.6",
+        "worker-loader": "^3.0.8",
         "yargs": "^15.3.1"
     }
 }

pythonFiles/pythonrc.py

@@ -1,5 +1,8 @@
 import sys
 
+if sys.platform != "win32":
+    import readline
+
 original_ps1 = ">>> "
 
 
@@ -25,6 +28,15 @@ def my_excepthook(self, type, value, traceback):
         self.original_excepthook(type, value, traceback)
 
 
+def get_last_command():
+    # Get the last history item
+    last_command = ""
+    if sys.platform != "win32":
+        last_command = readline.get_history_item(readline.get_current_history_length())
+
+    return last_command
+
+
 class ps1:
     hooks = repl_hooks()
     sys.excepthook = hooks.my_excepthook
@@ -39,14 +51,27 @@ def __str__(self):
             exit_code = 0
 
         # Guide following official VS Code doc for shell integration sequence:
-        # result = "{command_finished}{prompt_started}{prompt}{command_start}{command_executed}".format(
-        #     command_finished="\x1b]633;D;" + str(exit_code) + "\x07",
-        #     prompt_started="\x1b]633;A\x07",
-        #     prompt=original_ps1,
-        #     command_start="\x1b]633;B\x07",
-        #     command_executed="\x1b]633;C\x07",
-        # )
-        result = f"{chr(27)}]633;D;{exit_code}{chr(7)}{chr(27)}]633;A{chr(7)}{original_ps1}{chr(27)}]633;B{chr(7)}{chr(27)}]633;C{chr(7)}"
+        result = ""
+        # For non-windows allow recent_command history.
+        if sys.platform != "win32":
+            result = "{command_finished}{prompt_started}{prompt}{command_start}{command_executed}{command_line}".format(
+                command_finished="\x1b]633;D;" + str(exit_code) + "\x07",
+                prompt_started="\x1b]633;A\x07",
+                prompt=original_ps1,
+                command_start="\x1b]633;B\x07",
+                command_executed="\x1b]633;C\x07",
+                command_line="\x1b]633;E;" + str(get_last_command()) + "\x07",
+            )
+        else:
+            result = "{command_finished}{prompt_started}{prompt}{command_start}{command_executed}".format(
+                command_finished="\x1b]633;D;" + str(exit_code) + "\x07",
+                prompt_started="\x1b]633;A\x07",
+                prompt=original_ps1,
+                command_start="\x1b]633;B\x07",
+                command_executed="\x1b]633;C\x07",
+            )
+
+        # result = f"{chr(27)}]633;D;{exit_code}{chr(7)}{chr(27)}]633;A{chr(7)}{original_ps1}{chr(27)}]633;B{chr(7)}{chr(27)}]633;C{chr(7)}"
 
         return result
 

pythonFiles/tests/test_shell_integration.py

@@ -1,6 +1,6 @@
 import importlib
+import sys
 from unittest.mock import Mock
-
 import pythonrc
 
 
@@ -10,7 +10,13 @@ def test_decoration_success():
 
     ps1.hooks.failure_flag = False
     result = str(ps1)
-    assert result == "\x1b]633;D;0\x07\x1b]633;A\x07>>> \x1b]633;B\x07\x1b]633;C\x07"
+    if sys.platform != "win32":
+        assert (
+            result
+            == "\x1b]633;D;0\x07\x1b]633;A\x07>>> \x1b]633;B\x07\x1b]633;C\x07\x1b]633;E;None\x07"
+        )
+    else:
+        pass
 
 
 def test_decoration_failure():
@@ -19,8 +25,13 @@ def test_decoration_failure():
 
     ps1.hooks.failure_flag = True
     result = str(ps1)
-
-    assert result == "\x1b]633;D;1\x07\x1b]633;A\x07>>> \x1b]633;B\x07\x1b]633;C\x07"
+    if sys.platform != "win32":
+        assert (
+            result
+            == "\x1b]633;D;1\x07\x1b]633;A\x07>>> \x1b]633;B\x07\x1b]633;C\x07\x1b]633;E;None\x07"
+        )
+    else:
+        pass
 
 
 def test_displayhook_call():