René's URL Explorer Experiment

Title: Fix multiline environment variable parsing in .env files by Copilot · Pull Request #928 · microsoft/vscode-python-debugger · GitHub

Open Graph Title: Fix multiline environment variable parsing in .env files by Copilot · Pull Request #928 · microsoft/vscode-python-debugger

X Title: Fix multiline environment variable parsing in .env files by Copilot · Pull Request #928 · microsoft/vscode-python-debugger

Description: Fix multiline environment variable parsing in .env files The envFile parser was truncating quoted multiline values at the first newline. A value like: EXAMPLE_VAR='very long value with new line , we need to get all the lines' Would parse as 'very long value instead of preserving the full multiline content. Changes Made: Analyze the current parseEnvFile and parseEnvLine implementation Implement a stateful parser that handles multiline quoted values Uses character-by-character parsing with state tracking for quotes Preserves newlines within quoted values Handles both single and double quotes Improved escape sequence handling to properly count consecutive backslashes Add comprehensive tests for multiline environment variables Single-quoted multiline values Double-quoted multiline values Escaped newlines (\n) Multiple multiline variables Mix of multiline and single-line values Trailing whitespace preservation Verify the fix works with the example from the issue Tested with actual .env file from the issue Output matches python-dotenv library behavior Address code review feedback Improved escape sequence detection (counts consecutive backslashes) Verified trailing whitespace is preserved correctly Fixed comment about regex 's' flag usage Verified existing tests still pass (lint and build successful) Security check passed (CodeQL found no vulnerabilities) Fixed linter and prettier formatting issues Solution: The fix replaces the simple .split('\n') approach with a state machine that: Tracks whether we're inside quotes (single or double) Preserves newlines when inside quotes Only splits on newlines when not inside quotes Properly handles escaped quotes by counting consecutive backslashes Resets state properly between lines This matches the behavior of the python-dotenv library that the issue mentions works correctly. Testing: All tests pass, including: Original issue example works correctly Multiline values in single and double quotes Escaped newlines (\n sequences) Multiple multiline variables Trailing whitespace preservation Build and lint successful CodeQL security scan passed with no alerts Prettier formatting applied Security Summary: No security vulnerabilities introduced. CodeQL analysis found 0 alerts. Original prompt This section details on the original issue you should resolve Unable to get full environment variable spread on multi line ## Description Using envFile in launch.json file to load env variables from .env file does not load full variable which have multi line. Environment Information Python Debugger extension versions 2025.14.1 Example code import os variable = os.getenv("EXAMPLE_VAR") print("EXAMPLE_VAR:", variable) launch.json { "version": "0.2.0", "configurations": [ { "name": "Python: Debug single file", "request": "launch", "type": "debugpy", "program": "${file}", "console": "integratedTerminal", "envFile": "${workspaceFolder}/example.env" } ] } example.env EXAMPLE_VAR='very long value with new line , we need to get all the lines' Output EXAMPLE_VAR: 'very long value Expected output EXAMPLE_VAR: very long value with new line , we need to get all the lines Using load_dotenv to load .env work as expected import os from dotenv import load_dotenv load_dotenv(dotenv_path="example.env") variable = os.getenv("EXAMPLE_VAR") print("EXAMPLE_VAR:", variable) ## Output EXAMPLE_VAR: very long value with new line , we need to get all the lines Result with env load from launch.json Result with env load from load_dotenv Investigate if multiline environment variables are passable through DAP and whether or not the extension is expanding them correctly. Comments on the Issue (you are @copilot in this section) @eleanorjboyd is this with or without the python environments extension installed? Can you try disabling it and see if that makes a difference Fixes #850 ✨ Let Copilot coding agent set things up for you — coding agent works faster and does higher quality work when set up for your repo.

Open Graph Description: Fix multiline environment variable parsing in .env files The envFile parser was truncating quoted multiline values at the first newline. A value like: EXAMPLE_VAR='very long value with new line...

X Description: Fix multiline environment variable parsing in .env files The envFile parser was truncating quoted multiline values at the first newline. A value like: EXAMPLE_VAR='very long value with new ...

Opengraph URL: https://github.com/microsoft/vscode-python-debugger/pull/928

X: @github

direct link

Domain: patch-diff.githubusercontent.com

Links:

Viewport: width=device-width