94 lines
3.8 KiB
Nix
94 lines
3.8 KiB
Nix
# Builds a sandbox for Emacs (and optionally, Doom) with a particular version of
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# Emacs. Use this as a basis for module shell.nix's.
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#
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# Usage examples:
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#
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# To create a doom environment with the test config:
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#
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# nix-shell
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#
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# With your own DOOMDIR:
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#
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# nix-shell --argstr doomdir ~/.config/other-doom-config
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#
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# With a specific version of Emacs
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#
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# nix-shell --argstr emacs 26 # 26.3
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# nix-shell --argstr emacs 26.3 # 26.3
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# nix-shell --argstr emacs 27 # 27.1
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# nix-shell --argstr emacs 27.1 # 27.1
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# nix-shell --argstr emacs 27.2 # 27.2
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# nix-shell --argstr emacs 28 # 28.0.50
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# nix-shell --argstr emacs gcc # 28.0.50 + native-comp
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# nix-shell --argstr emacs pgtk+gcc # 28.0.50 + pgtk + native-comp
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# nix-shell --argstr emacs ci-26.3 # 26.3 (barebones; no GUI)
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# nix-shell --argstr emacs ci-27.1 # 27.1 (barebones; no GUI)
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# nix-shell --argstr emacs ci-27.2 # 27.2 (barebones; no GUI)
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# nix-shell --argstr emacs ci-HEAD # 28.0.50 (barebones; no GUI)
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# nixpkgs: provides Emacs 26.3 and 27.1
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{ pkgs ? import (fetchTarball "https://github.com/NixOS/nixpkgs/archive/20.09.tar.gz")
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{
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overlays = [
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# emacs-overlay: provides Emacs 28, native-comp, and pgtk
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(import (fetchTarball "https://github.com/nix-community/emacs-overlay/archive/85cc3a1fd067440181a4902455912e7c08ec26c8.tar.gz"))
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# nix-emacs-ci: provides CI versions of Emacs 26.3, 27.1, 27.2, and 28.0.50
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(_: _: (import (fetchTarball "https://github.com/purcell/nix-emacs-ci/archive/master.tar.gz")))
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# Pull Emacs 27.2 from later version of nixpkgs
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(_: _: { emacs27-2 = (import (fetchTarball "https://github.com/NixOS/nixpkgs/archive/4c87cb87a2db6b9eb43541c1cf83f2a2f725fa25.tar.gz") {}).emacs; })
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];
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}
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, emacs ? "27"
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, emacsdir ? "$(pwd)"
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, doomdir ? ""
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, doomlocaldir ? "$EMACSDIR/.local" }:
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let emacsPkg = (if emacs == "26" then pkgs.emacs26
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else if emacs == "26.3" then pkgs.emacs26
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else if emacs == "27" then pkgs.emacs27-2
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else if emacs == "27.1" then pkgs.emacs27
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else if emacs == "27.2" then pkgs.emacs27-2
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else if emacs == "28" then pkgs.emacsGit
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else if emacs == "gcc" then pkgs.emacsGcc
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else if emacs == "pgtk+gcc" then pkgs.emacsPgtkGcc
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else if emacs == "ci-26.3" then pkgs.emacs-26-3
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else if emacs == "ci-27.1" then pkgs.emacs-27-1
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else if emacs == "ci-27.2" then pkgs.emacs-27-2
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else if emacs == "ci-28" then pkgs.emacs-snapshot
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else pkgs.emacs);
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in pkgs.stdenv.mkDerivation {
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name = "doom-emacs";
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buildInputs = [
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emacsPkg
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pkgs.git
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(pkgs.ripgrep.override {withPCRE2 = true;})
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];
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shellHook = ''
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export EMACS="${emacsPkg}/bin/emacs"
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export EMACSVERSION="$($EMACS --no-site-file --batch --eval '(princ emacs-version)')"
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export EMACSDIR="$(readlink -f "${emacsdir}")/"
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export DOOMDIR="$(readlink -f "${doomdir}")/"
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export DOOMLOCALDIR="$(readlink -f "${doomlocaldir}").$EMACSVERSION/"
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export DOOMNOCOMPILE=1
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export PATH="$EMACSDIR/bin:$PATH"
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echo "Running Emacs $EMACSVERSION (emacs=${emacs})"
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echo "EMACSDIR=$EMACSDIR"
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echo "DOOMDIR=$DOOMDIR"
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echo "DOOMLOCALDIR=$DOOMLOCALDIR"
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# Copy your existing repos over to optimize on install times (but not the
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# builds, because that may contain stale bytecode).
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mkdir -p "$DOOMLOCALDIR/straight"
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pushd "$DOOMLOCALDIR/straight" >/dev/null
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if [[ -d "$EMACSDIR/.local/straight/repos" && ! -d ./repos ]]; then
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echo "Copying '$EMACSDIR/.local/straight/repos' to './$(basename $DOOMLOCALDIR)straight/repos' to save time"
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cp -r "$EMACSDIR/.local/straight/repos" ./repos
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fi
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popd >/dev/null
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echo "Ready! Remember to 'doom sync'!"
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'';
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}
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