Separate out conda-lock generation into new script

conda-reqs/chipyard.yaml

@@ -131,7 +131,7 @@ dependencies:
     - pytest-mock
     - moto
     - mypy
-    - s3fs
+    - s3fs==0.4.2
     - aiohttp
     - pip:
         - sure

scripts/build-setup.sh

@@ -114,11 +114,12 @@ if run_step "1"; then
     # note: lock file must end in .conda-lock.yml - see https://github.com/conda-incubator/conda-lock/issues/154
     CONDA_REQS=$CYDIR/conda-reqs
     CONDA_LOCK_REQS=$CONDA_REQS/conda-lock-reqs
+    # must match with the file generated by generate-conda-lockfile.sh
     LOCKFILE=$CONDA_LOCK_REQS/conda-requirements-$TOOLCHAIN_TYPE-linux-64.conda-lock.yml
 
     if [ "$USE_UNPINNED_DEPS" = true ]; then
         # auto-gen the lockfile
-        conda-lock -f $CONDA_REQS/chipyard.yaml -f $CONDA_REQS/$TOOLCHAIN_TYPE.yaml --lockfile $LOCKFILE
+        $CYDIR/scripts/generate-conda-lockfile.sh $TOOLCHAIN_TYPE
     fi
 
     # use conda-lock to create env

scripts/generate-conda-lockfile.sh

@@ -0,0 +1,31 @@
+#!/usr/bin/env bash
+
+set -ex
+
+CUR_DIR=$( cd -- "$( dirname -- "${BASH_SOURCE[0]}" )" &> /dev/null && pwd )
+
+TOOLCHAIN_TYPE="riscv-tools"
+
+# getopts does not support long options, and is inflexible
+while [ "$1" != "" ];
+do
+    case $1 in
+        riscv-tools | esp-tools)
+            TOOLCHAIN_TYPE=$1 ;;
+        * )
+            error "invalid option $1"
+            usage 1 ;;
+    esac
+    shift
+done
+
+REQS_DIR="$CUR_DIR/../conda-reqs"
+if [ ! -d "$REQS_DIR" ]; then
+  echo "$REQS_DIR does not exist, make sure you're calling this script from chipyard/"
+  exit 1
+fi
+
+# note: lock file must end in .conda-lock.yml - see https://github.com/conda-incubator/conda-lock/issues/154
+LOCKFILE=$REQS_DIR/conda-lock-reqs/conda-requirements-$TOOLCHAIN_TYPE-linux-64.conda-lock.yml
+
+conda-lock -f "$REQS_DIR/chipyard.yaml" -f "$REQS_DIR/$TOOLCHAIN_TYPE.yaml" -p linux-64 --lockfile $LOCKFILE