1 files changed, 128 insertions, 0 deletions
diff --git a/tools/emacs/default.nix b/tools/emacs/default.nix
new file mode 100644
index 000000000000..d36673e363f4
--- /dev/null
+++ b/tools/emacs/default.nix
@@ -0,0 +1,128 @@
+# This file builds an Emacs pre-configured with the packages I need
+# and my personal Emacs configuration.
+
+{ pkgs, ... }:
+
+with pkgs;
+with third_party.emacsPackagesNg;
+with third_party.emacs;
+
+let
+  localPackages = pkgs.tools.emacs-pkgs;
+  emacsWithPackages = (third_party.emacsPackagesNgGen third_party.emacs26).emacsWithPackages;
+
+  # $PATH for binaries that need to be available to Emacs
+  emacsBinPath = lib.makeBinPath [ third_party.telega ];
+
+  identity = x: x;
+  tazjinsEmacs = pkgfun: (emacsWithPackages(epkgs: pkgfun(
+  # Actual ELPA packages (the enlightened!)
+  (with epkgs.elpaPackages; [
+    ace-window
+    avy
+    pinentry
+    rainbow-mode
+    undo-tree
+  ]) ++
+
+  # MELPA packages:
+  (with epkgs.melpaPackages; [
+    browse-kill-ring
+    cargo
+    clojure-mode
+    counsel
+    counsel-notmuch
+    dash-functional
+    direnv
+    dockerfile-mode
+    elixir-mode
+    elm-mode
+    erlang
+    exwm
+    go-mode
+    gruber-darker-theme
+    haskell-mode
+    ht
+    hydra
+    idle-highlight-mode
+    intero
+    ivy
+    ivy-pass
+    ivy-prescient
+    jq-mode
+    kotlin-mode
+    lsp-mode
+    magit
+    markdown-toc
+    multi-term
+    multiple-cursors
+    nginx-mode
+    nix-mode
+    notmuch # this comes from pkgs.third_party
+    paredit
+    password-store
+    pg
+    prescient
+    racket-mode
+    rainbow-delimiters
+    refine
+    restclient
+    request
+    sly
+    string-edit
+    swiper
+    telega
+    telephone-line
+    terraform-mode
+    toml-mode
+    transient
+    use-package
+    uuidgen
+    vterm
+    web-mode
+    websocket
+    which-key
+    xelb
+    yaml-mode
+  ]) ++
+
+  # Custom packages
+  (with localPackages; [
+    carp-mode
+    dottime
+    nix-util
+    term-switcher
+  ]))));
+in lib.fix(self: l: f: third_party.writeShellScriptBin "tazjins-emacs" ''
+  export PATH="${emacsBinPath}:$PATH"
+  exec ${tazjinsEmacs f}/bin/emacs \
+    --debug-init \
+    --no-site-file \
+    --no-site-lisp \
+    --no-init-file \
+    --directory ${./config} ${if l != null then "--directory ${l}" else ""} \
+    --eval "(require 'init)" $@
+  '' // {
+    # Call overrideEmacs with a function (pkgs -> pkgs) to modify the
+    # packages that should be included in this Emacs distribution.
+    overrideEmacs = f': self l f';
+
+    # Call withLocalConfig with the path to a *folder* containing a
+    # `local.el` which provides local system configuration.
+    withLocalConfig = confDir: self confDir f;
+
+    # Build a derivation that uses the specified local Emacs (i.e.
+    # built outside of Nix) instead
+    withLocalEmacs = emacsBin: third_party.writeShellScriptBin "tazjins-emacs" ''
+      export PATH="${emacsBinPath}:$PATH"
+      export EMACSLOADPATH="${(tazjinsEmacs f).deps}/share/emacs/site-lisp:"
+      exec ${emacsBin} \
+        --debug-init \
+        --no-site-file \
+        --no-site-lisp \
+        --no-init-file \
+        --directory ${./config} \
+        ${if l != null then "--directory ${l}" else ""} \
+        --eval "(require 'init)" $@
+    '';
+  }) null identity