lix/src
John Ericson d2162e7acd Make more string values work as installables
As discussed in #7417, it would be good to make more string values work
as installables. That is to say, if an installable refers to a value,
and the value is a string, it used to not work at all, since #7484, it
works somewhat, and this PR make it work some more.

The new cases that are added for `BuiltPath` contexts:

- Fixed input- or content-addressed derivation:

  ```
  nix-repl> hello.out.outPath
  "/nix/store/jppfl2bp1zhx8sgs2mgifmsx6dv16mv2-hello-2.12"

  nix-repl> :p builtins.getContext hello.out.outPath
  { "/nix/store/c7jrxqjhdda93lhbkanqfs07x2bzazbm-hello-2.12.drv" = { outputs = [ "out" ]; }; }

  The string matches the specified single output of that derivation, so
  it should also be valid.

- Floating content-addressed derivation:

  ```
  nix-repl> (hello.overrideAttrs (_: { __contentAddressed = true; })).out.outPath
  "/1a08j26xqc0zm8agps8anxpjji410yvsx4pcgyn4bfan1ddkx2g0"

  nix-repl> :p builtins.getContext (hello.overrideAttrs (_: { __contentAddressed = true; })).out.outPath
  { "/nix/store/qc645pyf9wl37c6qvqzaqkwsm1gp48al-hello-2.12.drv" = { outputs = [ "out" ]; }; }
  ```

  The string is not a path but a placeholder, however it also matches
  the context, and because it is a CA derivation we have no better
  option. This should also be valid.

We may also want to think about richer attrset based values (also
discussed in that issue and #6507), but this change "completes" our
string-based building blocks, from which the others can be desugared
into or at least described/document/taught in terms of.

Progress towards #7417

Co-authored-by: Robert Hensing <roberth@users.noreply.github.com>
2023-05-15 09:03:38 -04:00
..
build-remote Split comment, match with each variable 2023-05-08 10:08:01 -04:00
libcmd Make more string values work as installables 2023-05-15 09:03:38 -04:00
libexpr Create EvalState::coerceToDerivedPath 2023-05-15 09:03:37 -04:00
libfetchers Fix hostRegex to accept hosts with a - 2023-05-03 18:59:44 -04:00
libmain nix: Support the --repair flag 2023-04-28 17:03:04 +02:00
libstore Merge pull request #8141 from tweag/user-files-doc 2023-05-15 07:11:47 -04:00
libutil Merge pull request #8141 from tweag/user-files-doc 2023-05-15 07:11:47 -04:00
nix Merge pull request #8141 from tweag/user-files-doc 2023-05-15 07:11:47 -04:00
nix-build nix: Support the --repair flag 2023-04-28 17:03:04 +02:00
nix-channel Factor out the generation of the profile/channel directory 2023-03-23 10:22:42 +01:00
nix-collect-garbage Fix nix-collect-garbage -d with the new profile location 2023-03-07 13:08:04 +01:00
nix-copy-closure Remove FormatOrString and remaining uses of format() 2023-03-02 15:57:54 +01:00
nix-env nix: Support the --repair flag 2023-04-28 17:03:04 +02:00
nix-instantiate nix: Support the --repair flag 2023-04-28 17:03:04 +02:00
nix-store Merge pull request #6312 from obsidiansystems/keyed-build-result 2023-04-17 18:08:05 +02:00
resolve-system-dependencies Remove FormatOrString and remaining uses of format() 2023-03-02 15:57:54 +01:00
toml11 Replace cpptoml with toml11 2021-12-17 22:03:33 +01:00