`platformio-freebsd-toolchain-xtensa`

Trick platformio so that it thinks toolchain-xtensa, a platformio package, is installed.

Notice

With recent ESP8266/Arduino (3.0.0), This workaround does not work anymore. Use freebsd-ports-esp-quick-toolchain.

Rationale

platformio claims "No more hardware or software lock-ins", but users are locked in their so-called package system. The package system has several issues:

Undocumented
Ignores lib versions, such as libc
Publishes packages from unknown sources
Does not sign packages
Uses seemingly random version number scheme

Like similar attempts to manage dependencies by projects themselves, the project has not successfully provided different OS/arch/machine, mostly because the package build procedure is not documented.

This is an attempt to fix some of the issues.

The project stopped providing toolchain-xtensa for FreeBSD. Here is the log you end up with:

pio run -e tasmota
Processing tasmota (platform: espressif8266@2.5.1; framework: arduino; board: esp01_1m)
---------------------------------------------------------------------------------------
PackageManager: Installing toolchain-xtensa @ ~2.40802.191122
Error: Could not find a version that satisfies the requirement '~2.40802.191122' for your system 'freebsd_amd64'

What it does

init.sh creates symlinks to the directories where the system package installed the tool-chain, and creates package.json.

Requirements

trombik/freebsd-ports-xtensa-lx106-elf is installed

Usage

cd ~/.platformio/packages
git clone https://github.com/trombik/platformio-freebsd-toolchain-xtensa.git toolchain-xtensa
cd toolchain-xtensa
./init.sh

init.sh creates symlinks and package.json.

Further improvement

The script should be able to support other OSes, such as OpenBSD as long as a package for the OS is provided.