Rewrite mktags.sh to MakeTags.py

This makes tags for all third-party dependencies, and uses universal-ctags
instead of fast-tags. It's so nice having tags for /everything/. It's also
pretty fast, and caches the result for third-party deps anyway.

Oh yeah this also added an explicit list of third-party Python packages. I need
to filter the entire pkgset down to just the ones I'm using in order to make
tags for them.

1 files changed, 23 insertions, 4 deletions

diff --git a/Biz/Bild.nix b/Biz/Bild.nix
index 8e33d93..c24cecd 100644
--- a/Biz/Bild.nix
+++ b/Biz/Bild.nix
@@ -14,6 +14,19 @@ let
 
   unstable = nixpkgs.nixos-unstable-small;
 
+  # get the .src attributes of all drvs in each pkgset in the `sources` list,
+  # and concat them with `:` into a Unix-style search path.
+  # makeSourcesPath :: [pkgset] -> str
+  makeSourcesPath = with stable;
+    sources:
+    lib.trivial.pipe sources [
+      (builtins.map lib.attrsets.attrValues)
+      lib.lists.flatten
+      (builtins.filter (pkg: pkg != null))
+      (builtins.map (pkg: pkg.src))
+      (lib.strings.concatStringsSep ":")
+    ];
+
   # this is the main library definitions, recursive references can be made with
   # `self.thing`, like in Python objects
   self = {
@@ -68,7 +81,8 @@ let
     lisp = { sbclWith = stable.sbcl.withPackages; };
 
     python = {
-      packages = stable.python3.pkgs;
+      packages = self.lib.attrsets.getAttrs (import ./Bild/Deps/Python.nix)
+        stable.python3.pkgs;
       pythonWith = stable.python3.withPackages;
       buildPythonApplication = stable.python3.pkgs.buildPythonApplication;
     };
@@ -83,8 +97,7 @@ let
         git-branchless gitlint groff guile hlint indent jq lolcat mypy nixfmt
         ormolu pkg-config ripgrep rustc tree wemux;
       llama-cpp = unstable.llama-cpp;
-      llm = python3.withPackages
-        (p: with p; [ p.llm-ollama ]);
+      llm = python3.withPackages (p: with p; [ p.llm-ollama ]);
       ollama = unstable.ollama;
       ruff = unstable.ruff;
       shellcheck = unstable.shellcheck;
@@ -192,12 +205,18 @@ let
         llm
         ormolu
         ripgrep
-        stable.haskell.packages.${constants.ghcCompiler}.fast-tags
         tree
         wemux
       ];
       shellHook = ''
         export GHC_PACKAGE_PATH=${self.bild}/lib/ghc-${self.haskell.ghcVersion}/package.conf.d
+        export ALL_SOURCES=${
+          makeSourcesPath [
+            self.python.packages
+            self.haskell.packages
+            self.c.packages
+          ]
+        }
       '';
     };