nix: rename custom -> packages

nix/packages/tokei/default.nix

@@ -0,0 +1,43 @@
+{
+  lib,
+  stdenv,
+  fetchFromGitHub,
+  rustPlatform,
+  libiconv,
+  darwin,
+  zlib,
+}:
+
+let
+  rev = "6392516c47d4573d16886b9fe5f79592b1c70d49";
+in
+
+rustPlatform.buildRustPackage {
+  pname = "tokei";
+  version = lib.substring 0 7 rev;
+
+  src = fetchFromGitHub {
+    owner = "XAMPPRocky";
+    repo = "tokei";
+    inherit rev;
+    hash = "sha256-EYr4K1Bt+74jb85UQ3So0efrOcYAq71/4++kMCSPi1E=";
+  };
+
+  cargoSha256 = "sha256-fdAJwQNJczRqy0KQqse8QRx5+1gZTCBw+kkwgn6UGKU=";
+
+  patches = [
+    ./hledger.patch
+    ./skel.patch
+    ./why3.patch
+  ];
+
+  buildInputs = lib.optionals stdenv.isDarwin [
+    libiconv
+    darwin.Security
+  ];
+
+  checkInputs = lib.optionals stdenv.isDarwin [ zlib ];
+
+  # enable all output formats
+  buildFeatures = [ "all" ];
+}

nix/packages/tokei/hledger.patch

@@ -0,0 +1,42 @@
+diff --git a/languages.json b/languages.json
+index ac548b9..b2899f1 100644
+--- a/languages.json
++++ b/languages.json
+@@ -846,6 +846,13 @@
+       "nested": true,
+       "extensions": ["lean", "hlean"]
+     },
++    "Hledger": {
++      "name": "hledger",
++      "line_comment": [";", "#"],
++      "multi_line_comments": [["comment", "end comment"]],
++      "nested": false,
++      "extensions": ["hledger"]
++    },
+     "Less": {
+       "name": "LESS",
+       "line_comment": ["//"],
+diff --git a/tests/data/hledger.hledger b/tests/data/hledger.hledger
+new file mode 100644
+index 0000000..df7259d
+--- /dev/null
++++ b/tests/data/hledger.hledger
+@@ -0,0 +1,18 @@
++# 18 lines 6 code 10 comments 2 blanks
++# a comment
++; another comment
++
++; ^ a blank line
++comment
++account assets             ; Declare valid account names and display order.
++a block comment
++end comment
++
++account assets:savings     ; A subaccount. This one represents a bank account.
++account assets:checking    ; Another. Note, 2+ spaces after the account name.
++account assets:receivable  ; Accounting type is inferred from english names,
++account passifs            ; or declared with a "type" tag, type:L
++account expenses           ; type:X
++                           ; A follow-on comment line, indented.
++account expenses:rent      ; Expense and revenue categories are also accounts.
++                           ; Subaccounts inherit their parent's type.

nix/packages/tokei/skel.patch

@@ -0,0 +1,32 @@
+diff --git a/languages.json b/languages.json
+index b2899f1..dfeff47 100644
+--- a/languages.json
++++ b/languages.json
+@@ -1406,6 +1406,10 @@
+       "quotes": [["\\\"", "\\\""]],
+       "extensions": ["shader", "cginc"]
+     },
++    "Skel": {
++      "multi_line_comments": [["(*", "*)"]],
++      "extensions": ["skel", "sk"]
++    },
+     "Slang": {
+       "name": "Slang",
+       "line_comment": ["//"],
+diff --git a/tests/data/skel.sk b/tests/data/skel.sk
+new file mode 100644
+index 0000000..c6e8a68
+--- /dev/null
++++ b/tests/data/skel.sk
+@@ -0,0 +1,11 @@
++(* 11 lines 5 code 5 comments 1 blanks *)
++
++(* ^ a blank line, a comment *)
++(*
++a multiline comment
++*)
++type ident
++type term =
++| Var ident
++| Lam (ident, term)
++| App (term, term)

nix/packages/tokei/why3.patch

@@ -0,0 +1,30 @@
+diff --git a/languages.json b/languages.json
+index dfeff47..0baedb7 100644
+--- a/languages.json
++++ b/languages.json
+@@ -1742,6 +1742,12 @@
+       "line_comment": ["//"],
+       "extensions": ["wgsl"]
+     },
++    "Why3": {
++      "name": "Why3",
++      "quotes": [["\\\"", "\\\""]],
++      "multi_line_comments": [["(*", "*)"]],
++      "extensions": ["mlw"]
++    },
+     "Wolfram": {
+       "quotes": [["\\\"", "\\\""]],
+       "multi_line_comments": [["(*", "*)"]],
+diff --git a/tests/data/why3.mlw b/tests/data/why3.mlw
+new file mode 100644
+index 0000000..0d07bb2
+--- /dev/null
++++ b/tests/data/why3.mlw
+@@ -0,0 +1,7 @@
++(* 7 lines 3 code 3 comments 1 blanks *)
++module Exercice3
++  (* ^ ligne vide *)
++
++  val foo (bar) : baz
++  (* commentaire *)
++end