Support specifying the *exact* library folder for a given environment

[SRGDamia1]

What kind of issue is this?

• Feature Request

---

I would like to specify the exactly folder for the library dependencies for a given environment. Currently only specifying the parent directory for the group of individual folders is supported. The new folder location would have to be fixed in

platformio-core/platformio/package/commands/install.py

Lines 223 to 230 in b537004

	env_lm = LibraryPackageManager(
	os.path.join(config.get("platformio", "libdeps_dir"), project_env),
	compatibility=(
	PackageCompatibility(**compatibility_qualifiers)
	if compatibility_qualifiers
	else None
	),
	)

,

platformio-core/platformio/package/commands/install.py

Line 270 in b537004

storage_dir = Path(config.get("platformio", "libdeps_dir"), project_env)

,

platformio-core/platformio/package/commands/install.py

Lines 314 to 316 in b537004

	lm = LibraryPackageManager(
	os.path.join(config.get("platformio", "libdeps_dir"), project_env)
	)

, and probably several other places.

If you could specify the exact location for library dependencies for each environment, it would be easy to share the downloaded dependencies across various environments or projects, solving #4451 without scripting.