From fad98794d6d3c33cffba45baa8cac41d47cdc79e Mon Sep 17 00:00:00 2001
From: Gervasio Perez <gperez@csc.conicet.gov.ar>
Date: Fri, 14 Jul 2023 12:41:00 +0000
Subject: [PATCH] WRF+WPS 4.4 v1

---
 README.md | 45 +++++++++++++++++++++++++++++++++++++++++++++
 wps.nix   | 41 +++++++++++++++++++++++++++++++++++++++++
 wrf.nix   | 51 +++++++++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 137 insertions(+)
 create mode 100644 README.md
 create mode 100644 wps.nix
 create mode 100644 wrf.nix

diff --git a/README.md b/README.md
new file mode 100644
index 0000000..ce71ab1
--- /dev/null
+++ b/README.md
@@ -0,0 +1,45 @@
+# COMPILACIÒN DE WRF 
+
+Este instructivo permite compilar WRF v4.4 con HDF5.
+
+## Activar entorno NIX
+
+```
+$ enable_nix
+```
+
+## Clonar este repositorio y bajar/compilar fuentes de WRF
+
+```
+$ git clone https://git.csc.gob.ar/tupac/wrf-nix.git
+$ cd wrf-nix
+$ nix-shell wrf.nix
+# [esperar a que se active el entorno Nix]
+# unpackPhase: función de Nix que baja y descomprime el fuente de WRF
+# Necesario por unica vez
+$ unpackPhase
+$ cd WRF
+$ ./configure
+# Seleccionar opciones 34 y 1
+$ ./compile -j 4 wrf
+$ ./compile -j 4 em_real
+$ exit
+```
+
+## Compilar WPS
+
+A continuación podemos compilar WPS (desde la carpeta base del repo):
+
+```
+$ nix-shell wps.nix
+$ [esperar a que se active el entorno Nix]
+# unpackPhase: función de Nix que baja y descomprime el fuente de WPS
+# Necesario por unica vez
+$ unpackPhase
+$ cd WPS-4.4
+$ ./configure
+# Seleccionar opcion 3, linux paralelo
+$ ./compile
+$ exit
+```
+
diff --git a/wps.nix b/wps.nix
new file mode 100644
index 0000000..891957d
--- /dev/null
+++ b/wps.nix
@@ -0,0 +1,41 @@
+#{ lib, stdenv, fetchurl, gfortran, mpi, jasper, netcdf, netcdf-fortran, zlib, removeReferencesTo}:
+
+with import <nixpkgs> {};
+
+let netcdf-full = pkgs.buildEnv {
+    name = "netcdf+c+fortran";
+      paths = [
+            netcdf
+                netcdffortran
+                  ];
+                };
+in
+
+stdenv.mkDerivation {
+  pname = "WPS";
+  version = "4.4";
+
+  src = fetchurl {
+    url = "https://github.com/wrf-model/WPS/archive/refs/tags/v4.4.tar.gz";
+    sha256 = "sha256-/pyNippKu/gAsw5suzeGBMYEDkU29VlLji2uQ+lC4rM=";
+  };
+
+  nativeBuildInputs = [ m4 removeReferencesTo ];
+  buildInputs = [ mpi netcdf-full gfortran zlib jasper openmpi libpng gomp ];
+  dontAddPrefix=true;
+  env.NETCDF=netcdf-full;
+  env.JASPERLIB=jasper + "/lib";
+  env.JASPERINC=jasper + "/include";
+  env.WRF_DIR = "../WRF";
+  env.NIX_LDFLAGS = "-lnetcdff";
+  configurePhase= ''
+     bash -c "echo 35 | ./configure"
+  '';
+
+  buildPhase= ''
+     bash -c "./compile wrf"
+  '';
+
+  installPhase= ''
+  '';
+}
diff --git a/wrf.nix b/wrf.nix
new file mode 100644
index 0000000..c290320
--- /dev/null
+++ b/wrf.nix
@@ -0,0 +1,51 @@
+#{ lib, stdenv, fetchurl, gfortran, mpi, jasper, netcdf, netcdffortran, zlib, removeReferencesTo}:
+
+with import <nixpkgs> {};
+
+let netcdf-full = pkgs.buildEnv {
+  name = "netcdf+c+fortran";
+  paths = [
+    netcdf
+    netcdffortran
+  ];
+};
+in
+
+gcc9Stdenv.mkDerivation {
+  pname = "WRF";
+  version = "4.4.2";
+
+  src = fetchurl {
+    url = "https://github.com/wrf-model/WRF/releases/download/v4.4.2/v4.4.2.tar.gz";
+    sha256 = "sha256-SIuZLo6ZRjfFjjxp6GmtBaz+eUGcAfvvat4fYk5Q3Do=";
+  };
+
+  nativeBuildInputs = [ m4 removeReferencesTo ];
+  buildInputs = [ mpi 
+    netcdf-full 
+    gfortran 
+    zlib 
+    jasper 
+    openmpi 
+    libpng 
+    gomp 
+    hdf5-mpi 
+    hdf5-fortran];
+  dontAddPrefix=true;
+  env.HDF5=hdf5-mpi;
+  env.NETCDF=netcdf-full;
+  env.JASPERLIB=jasper + "/lib";
+  env.JASPERINC=jasper + "/include";
+  NIX_CFLAGS_COMPILE = "-Wno-format-security";
+  env.NIX_LDFLAGS = "-lnetcdff";
+  configurePhase= ''
+     bash -c "echo 34 | ./configure"
+  '';
+
+  buildPhase= ''
+     bash -c "./compile wrf"
+  '';
+
+  installPhase= ''
+  '';
+}