From f19ab63802d3b2524d7cadb5fc1f0d0b0f9bc2a3 Mon Sep 17 00:00:00 2001
From: "guoqing.ge" <Guoqing.Ge@noaa.gov>
Date: Thu, 21 May 2026 10:39:27 -0600
Subject: [PATCH 1/2] add a new option 'chemrrfs' to build.all

---
 sorc/build.all | 17 ++++++++++++-----
 1 file changed, 12 insertions(+), 5 deletions(-)

diff --git a/sorc/build.all b/sorc/build.all
index 0bb97c481f..e1bcab5432 100755
--- a/sorc/build.all
+++ b/sorc/build.all
@@ -11,18 +11,25 @@ cleanup() {
 }
 trap cleanup SIGINT SIGTERM
 
-if [[ "${1,,}" == "chem" ]] || [[ "${2,,}" == "chem" ]]; then
+if [[ "${1,,}" == chem* ]] || [[ "${2,,}" == chem* ]]; then
   cd "${HOMErrfs}/sorc" || exit 1
   echo "Option 'chem' found in the command line, downloading chem-specific MPAS-Model ......"
-  remote_url="https://github.com/cheMPAS-Fire/MPAS-Model"
-  branch_commit="chem/develop"  # a branch name or a commit hash
+  if [[ "${1,,}" == chemrrfs ]] || [[ "${2,,}" == chemrrfs ]]; then
+    remote_url="https://github.com/RRFSx/MPAS-Model"
+    branch_commit="chemrrfs"
+  else
+    remote_url="https://github.com/cheMPAS-Fire/MPAS-Model"
+    branch_commit="chem/develop"  # a branch name or a commit hash
+  fi
   mv MPAS-Model "MPAS-Model.$(date +%s)" # save a copy of current MPAS-Model
   git clone "${remote_url}" MPAS-Model
   cd "${HOMErrfs}/sorc/MPAS-Model" || exit 1
   git checkout "${branch_commit}"
   git submodule update --init --recursive
-  # allow smoke_coarse in histlist_3d_smoke
-  cp "${HOMErrfs}/fix/chemistry/mpassit/histlist_3d_smoke.coarse" "${HOMErrfs}/fix/chemistry/mpassit/histlist_3d_smoke"
+  if [[ "${branch_commit}" != "chemrrfs" ]]; then
+    # allow smoke_coarse in histlist_3d_smoke
+    cp "${HOMErrfs}/fix/chemistry/mpassit/histlist_3d_smoke.coarse" "${HOMErrfs}/fix/chemistry/mpassit/histlist_3d_smoke"
+  fi
 fi
 cd "${HOMErrfs}/sorc" || exit 1
 

From f96e0287c7070dbcf9ceeb5030af7480e1ad16f9 Mon Sep 17 00:00:00 2001
From: "guoqing.ge" <Guoqing.Ge@noaa.gov>
Date: Thu, 21 May 2026 10:49:07 -0600
Subject: [PATCH 2/2] remove copying histlist_3d_smoke.coarse for cheMPAS

---
 sorc/build.all | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/sorc/build.all b/sorc/build.all
index e1bcab5432..7f89412a3e 100755
--- a/sorc/build.all
+++ b/sorc/build.all
@@ -26,10 +26,6 @@ if [[ "${1,,}" == chem* ]] || [[ "${2,,}" == chem* ]]; then
   cd "${HOMErrfs}/sorc/MPAS-Model" || exit 1
   git checkout "${branch_commit}"
   git submodule update --init --recursive
-  if [[ "${branch_commit}" != "chemrrfs" ]]; then
-    # allow smoke_coarse in histlist_3d_smoke
-    cp "${HOMErrfs}/fix/chemistry/mpassit/histlist_3d_smoke.coarse" "${HOMErrfs}/fix/chemistry/mpassit/histlist_3d_smoke"
-  fi
 fi
 cd "${HOMErrfs}/sorc" || exit 1