feat: switch to nickel for configuration #703
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languages.ncl
Issue: #634
Note
This PR is blocked until a new
nickel-lang-core
version is released to crates.io (we don't want to depend on a git crate fortopiary-config
. See: tweag/nickel#1900Description
To support Nickel adoption, this PR switches Topiary's configuration from TOML to Nickel.
Unfortunately, this removes the collation mode.
We will support a subset of the collation mode using Nickel's merge functionality.
NOTE: Even with nickel's default features disabled, compilation of Topiary is increased by about five-fold with this PR. Don't worry if compilation suddenly takes much longer.
Checklist
Checklist before merging: