This package allows you to avoid race conditions when instantiating and precompiling Julia projects. This is particularly useful when using a common depot which multiple Julia processes might have access to (e.g. when working on a HPC cluster with a shared file system).
In particular, this partially works around the following issues:
This currently provides one function instantiate_precompile which will attempt to run Pkg.instantiate() and Pkg.precompile(). If the latter fails, it will attempt to rerun Pkg.build() and Pkg.precompile().
Note that you probably don't want to add PkgLock.jl as a dependency to your project. Instead, a typical usage would be to install PkgLock.jl into a shared environment, and then use it in your initialization scripts.
For example, you could add it to a shared environment named pkglock:
julia -e 'using Pkg; Pkg.activate("pkglock"; shared=true); Pkg.add(PackageSpec(url="https://github.com/simonbyrne/PkgLock.jl"))'(this only needs to be done once)
Then in your job submission script, you might have
julia --project -e 'push!(LOAD_PATH, "@pkglock"); using PkgLock; PkgLock.instantiate_precompile()'
# run program which uses the project