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let
pkgs = import ../../../clones/nixpkgs { };
lib = pkgs.lib;
dbFile = builtins.storePath <nixpkgs/programs.sqlite>;
dbJson = pkgs.runCommand "json" { } ''
${lib.getExe pkgs.sqlite} ${dbFile} '.mode json' "
SELECT package, system, json_group_array(name) AS names
FROM Programs
WHERE system = 'x86_64-linux'
GROUP BY package, system;
" > $out
'';
programs = lib.importJSON dbJson;
# the channel is older than nixpkgs master, so some attributes may no longer exist
# (but we edit on master, hence need that for e.g. positions)
stillExists = row: lib.hasAttrByPath (lib.splitString "." row.package) pkgs;
programs2 = lib.filter stillExists programs;
getPackage = e: lib.getAttrFromPath (lib.splitString "." e) pkgs;
isTrivial = row:
builtins.length (builtins.fromJSON row.names) == 1
&& !((getPackage row.package).meta ? "mainProgram");
missing = lib.filter isTrivial programs2;
in
pkgs.writeText "missing"
(builtins.toJSON (map (row: { pos = (getPackage row.package).meta.position or null; name = builtins.head (builtins.fromJSON row.names); }) missing))
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