From 8fd68186b24e7fbb447401dd482e5b42f60b40f8 Mon Sep 17 00:00:00 2001
From: Moritz Angermann <moritz.angermann@gmail.com>
Date: Tue, 21 Nov 2017 04:06:25 +0800
Subject: [PATCH] Add ways to build hadrian using nix (#473)
* Add ways to build hadrian using nix
This adds two new files to the hadrian directory
shell.nix sets up the build envrionment you need to build ghc
build-nix is a simple wrapper which invokes hadrian in the correct environment
Note: this patch was authored by @mpickering, however it ended up on phabricator due to the subtree as https://phabricator.haskell.org/D4207.
* Comments and renamed build-nix
---
build.nix.sh | 35 ++++++++++++++++++++++++++++++
shell.nix | 61 ++++++++++++++++++++++++++++++++++++++++++++++++++++
2 files changed, 96 insertions(+)
create mode 100755 build.nix.sh
create mode 100644 shell.nix
diff --git a/build.nix.sh b/build.nix.sh
new file mode 100755
index 000000000000..4b03ea8418da
--- /dev/null
+++ b/build.nix.sh
@@ -0,0 +1,35 @@
+#!/usr/bin/env nix-shell
+#! nix-shell -i bash shell.nix
+
+# This script sets up the build environment by invoking nix-shell shell.nix
+# and then runs the hadrian executable.
+
+function rl {
+ TARGET_FILE="$1"
+
+ cd "$(dirname "$TARGET_FILE")"
+ TARGET_FILE="$(basename "$TARGET_FILE")"
+
+ # Iterate down a (possible) chain of symlinks
+ while [ -L "$TARGET_FILE" ]
+ do
+ TARGET_FILE="$(readlink "$TARGET_FILE")"
+ cd "$(dirname "$TARGET_FILE")"
+ TARGET_FILE="$(basename "$TARGET_FILE")"
+ done
+
+ # Compute the canonicalized name by finding the physical path
+ # for the directory we're in and appending the target file.
+ PHYS_DIR="$(pwd -P)"
+ RESULT="$PHYS_DIR/$TARGET_FILE"
+ echo "$RESULT"
+}
+
+absoluteRoot="$(dirname "$(rl "$0")")"
+echo $absoluteRoot
+cd "$absoluteRoot"
+
+hadrian \
+ --lint \
+ --directory="$absoluteRoot/.." \
+ "$@"
diff --git a/shell.nix b/shell.nix
new file mode 100644
index 000000000000..e9a5ecc88e4d
--- /dev/null
+++ b/shell.nix
@@ -0,0 +1,61 @@
+# Invoking nix-shell sets up an environment where we can build ghc
+# by only invoking hadrian.
+
+
+{ nixpkgs ? import <nixpkgs> {} }:
+
+let
+ haskellPackages = nixpkgs.haskell.packages.ghc821;
+
+ removeBuild = path: type:
+ let baseName = baseNameOf (toString path);
+ in
+ ! (baseName == "_build"
+ || baseName == "dist"
+ || baseName == "dist-newstyle"
+ || baseName == ".stack-work"
+ || baseName == "config.log"
+ || baseName == "config.status"
+ || nixpkgs.lib.hasSuffix ".sh" baseName
+ || !(nixpkgs.lib.cleanSourceFilter path type)) ;
+
+ filterSrc = path: builtins.filterSource removeBuild path;
+
+
+ hadrianPackages = nixpkgs.haskell.packages.ghc821.override {
+ overrides = self: super: let
+ localPackage = name: path: self.callCabal2nix name (filterSrc path) {};
+ in {
+ hadrian = localPackage "hadrian" ./. ;
+ shake = self.callHackage "shake" "0.16" {};
+ Cabal = localPackage "Cabal" ./../libraries/Cabal/Cabal ;
+ filepath = localPackage "filepath" ./../libraries/filepath ;
+ text = localPackage "text" ./../libraries/text ;
+ hpc = localPackage"hpc" ./../libraries/hpc ;
+ parsec = localPackage "parsec" ./../libraries/parsec ;
+ HUnit = nixpkgs.haskell.lib.dontCheck (self.callHackage "HUnit" "1.3.1.2" {});
+ process = localPackage "process" ./../libraries/process ;
+ directory = localPackage "directory" ./../libraries/directory ;
+ }; };
+
+in
+
+ nixpkgs.stdenv.mkDerivation {
+ name = "ghc-dev";
+ buildInputs = [
+ hadrianPackages.hadrian
+ nixpkgs.haskell.compiler.ghc821
+ haskellPackages.alex
+ haskellPackages.happy
+ nixpkgs.python3
+ nixpkgs.git
+ nixpkgs.autoconf
+ nixpkgs.automake
+ nixpkgs.perl
+ nixpkgs.gcc
+ nixpkgs.python3Packages.sphinx
+ nixpkgs.ncurses
+ nixpkgs.m4
+ nixpkgs.gmp
+ nixpkgs.file ];
+ }
--
GitLab