====== PlatformIO Notes ======

===== ccache with PlatformIO =====

==== Installation ====

<code bash>
brew install ccache
</code>

==== Setup ====

Create ''~/.platformio/scripts/ccache.py'':

<code python>
Import("env")
import shutil

ccache = shutil.which("ccache")
if not ccache:
    Return()

def wrap(val):
    if val and not val.startswith("ccache "):
        return "ccache " + val
    return val

env["CC"]  = wrap(env["CC"])
env["CXX"] = wrap(env["CXX"])
env["AS"]  = wrap(env["AS"])
</code>

Add to ''~/.zshrc'':

<code bash>
export PLATFORMIO_EXTRA_SCRIPTS="${HOME}/.platformio/scripts/ccache.py"
</code>

Applies globally to all PlatformIO projects without modifying any project files.