depot - monorepo for the virus lounge

Age	Commit message (Collapse)	Author	Files	Lines
2021-09-14	r/2856 feat(nix/tag): add functions for querying a tag's name and value	sterni	1	-1/+14
	Both are just trivial wrappers around assertIsTag to make these lookups more ergonomic. This also allows us to demote assertIsTag to an implemtation detail. Change-Id: Ib6ba2a858f4839354a57b660042b418976c4b1d9 Reviewed-on: https://cl.tvl.fyi/c/depot/+/3541 Tested-by: BuildkiteCI Reviewed-by: Profpatsch <mail@profpatsch.de>
2021-09-14	r/2855 docs(nix/tag): correct comment for assertIsTag	sterni	1	-1/+1
	Change-Id: Id54cc3a1d7c83c6a94b9446c76b00ca2ce1ab48e Reviewed-on: https://cl.tvl.fyi/c/depot/+/3540 Tested-by: BuildkiteCI Reviewed-by: Profpatsch <mail@profpatsch.de>
2021-09-10	r/2834 docs(nix/tag): fix example for discrDef	sterni	1	-2/+2
	Change-Id: I8b7accb399448f57ace502642bd91fcfae416f15 Reviewed-on: https://cl.tvl.fyi/c/depot/+/3507 Tested-by: BuildkiteCI Reviewed-by: Profpatsch <mail@profpatsch.de>
2021-01-30	r/2166 feat(nix): add nix.tag, a way of discriminating via tagged unions	Profpatsch	2	-0/+237
	Introduces the concept of a “tag”, a single-keyed attrset which annotates a nix value with a name. This can be used to implement tagged unions (by implying the list of possible tags is well-known), which has some overlap with how `nix.yants` does it. However, the more fascinating use-case is in concert with a so-called discriminator, `match` and hylomorphisms. The discriminator can take a nix value, and add tags to it based on some predicate. With `match`, we can then use that information to convert the discriminated values again. With `hylo`, we can combine both the “constructive” discriminator step with the “destructive” match step to recursively walk over a nix data structure (based on a description of how to recurse, e.g. through attrset values or list values), and then apply a transformation in one go. Change-Id: Ia335ca8b0881447fbbcb6bcd80f49feb835f1715 Reviewed-on: https://cl.tvl.fyi/c/depot/+/2434 Tested-by: BuildkiteCI Reviewed-by: sterni <sternenseemann@systemli.org>