This Julia package exports macro @usingany. This macro makes package(s) available, if they are not already, and loads them with using keyword.
- If a package is available in an environment in LOAD_PATH, that's OK.
- If a package is available in a shared environment, this environment will be pushed into LOAD_PATH.
- Otherwise if it can be installed, you will be prompted to select an environment to install the package(s).
- If the package is not listed in any registry, an error will be thrown.
Usage example: While working on your package MyPackage you may temporarily need packages TOML, Plots, and Chairmarks, which however you don't want to add to your package dependencies. You also need Unitful, which is already an installed dependence of MyPackage. TOML is available in the stdlib, Plots you already put into a shared environment @utilities, and Chairmarks is not on your computer yet.
First, you add ShareAdd to your "main" (standard) enviroment, making it available at all times:
]
(YourEnv) pkg> activate
Activating project at `~/.julia/environments/v1.10`
(@v1.10) pkg> add ShareAdd
(...)
(@v1.10) pkg> activate . # back to your environment
(YourEnv) pkg>
By that occasion you may also want to clean your standard environment: It is generally not recommended having a lot of packages there.
Now, the only thing you need, is to type into REPL (or adding to your script) the following two lines:
using ShareAdd
@usingany Unitful, TOML, Plots, Chairmarks
As Chairmarks was not installed yet, you will be asked as to where to install it. You may e.g. add it to your existing @utilities shared environment, or let create a new environment @Chairmarks and put it there.
Afrerwards @utilities (and @Chairmarks, if created) will be added to LOAD_PATH, making their packages available.
Finally, the macro returns using Unitful, TOML, Plots, Chairmarks - and that's it. Enjoy!
P.S. Exported functions all have docstrings. More documentation and tests promised 😉