platformio/platformio-core

symlinks in platformio.ini should you pre-binding to path instead of late binding to path

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#5,201 opened on Jul 1, 2025

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Description

In platformio.ini symlinks to forward relative paths must be used

For example

libs_deps=FastLED:symlink://.

If .. is used then that path resolves to a directory in the ~/.platform directory structure.

Suggested Fix

Paths should early bind to the symlink target and the path to should passed back to the backend in absolute path form.

Contributor guide

Research direction
Investigate how symlinks in platformio.ini are resolved and trace the path resolution logic to understand where early binding should replace late binding.
Tech stack
python
Domain
build systemdeveloper experience
Issue type
Bug
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-3 hours
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Mostly clear
Prerequisites
PythonGit
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
50