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ofborg/src/maintainers.nix: look up files pointed by "pos" attribute

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Sometimes most of attributes for a package are defined outside the file
that defines it. Examples are `openjdk` and `nix`.

At least `openjdk` defined `pos` attribute to guide `nix edit` to open
the right file. Let's extend `ofborg` to do the same.

Before the change (with `pos` applied to `nix_2_3`):

    $ printf '[["nix_2_3"]]' > attrs.json; \
      printf '["pkgs/tools/package-management/nix/default.nix"]' > paths.json; \
      nix-instantiate --eval maintainers.nix --arg changedattrsjson ./attrs.json --arg changedpathsjson ./paths.json
    { }

After the change:

    $ printf '[["nix_2_3"]]' > attrs.json; \
      printf '["pkgs/tools/package-management/nix/default.nix"]' > paths.json; \
      nix-instantiate --eval maintainers.nix --arg changedattrsjson ./attrs.json --arg changedpathsjson ./paths.json
    { flokli = <CODE>; raitobezarius = <CODE>; }
This commit is contained in:
Sergei Trofimovich 2023-12-26 10:39:50 +00:00 committed by Cole Helbling
parent de415d3729
commit 7db074df7b
1 changed files with 11 additions and 0 deletions
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11
ofborg/src/maintainers.nix
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@ -62,6 +62,17 @@ let
#(builtins.unsafeGetAttrPos "name" drv)
(builtins.unsafeGetAttrPos "pname" drv)
(builtins.unsafeGetAttrPos "version" drv)
# Use ".meta.position" for cases when most of the package is
# defined in a "common" section and the only place where
# reference to the file with a derivation the "pos"
# attribute.
#
# ".meta.position" has the following form:
# "pkgs/tools/package-management/nix/default.nix:155"
# We transform it to the following:
# { file = "pkgs/tools/package-management/nix/default.nix"; }
{ file = pkgs.lib.head (pkgs.lib.splitString ":" (drv.meta.position or "")); }
]
)));