Add script to populate release directory

scripts/xx_populate_release_directory.sh

@@ -0,0 +1,107 @@
+#!/bin/bash
+#
+# Populates directory <base_prefix>/release/<release_tag> with the release tagged as <release_tag>.
+#
+# Input arguments:
+#   - release_tag:   tag/branch/commit in repo
+#   - base_prefix:   prefix to base directory for softweare installation; e.g. /opt/hlrs
+#
+# Environment variables: $TMPDIR must be set
+#
+#
+# Release directory structure:
+# ${HLRS_SOFTWARE_STACK_RELEASE_ROOT}/
+# ├── opt-non-spack/
+# │ ├── modulefiles
+# │ └── ...
+# ├── opt-spack (${HLRS_SOFTWARE_STACK_SPACK_INSTALL_TREE})/
+# │ ├── modulefiles
+# │ └── ...
+# ├── hlrs-spack (${HLRS_SOFTWARE_STACK_HLRS_SPACK_ROOT})/
+# │ ├── spack (${SPACK_ROOT})
+# │ ├── config-hlrs
+# │ ├── config-user
+# │ ├── repos
+# │ ├── environments
+# │ └── ...
+# └── hlrs-plumbing
+#   ├── scripts
+#   ├── envs
+#   ├── ci-cd
+#   └── ...
+#
+
+_VERBOSITY=1
+
+if [[ "$#" -ne 2 ]]; then
+  echo "Syntax: $0 release_tag base_prefix"
+  echo "Populates directory <base_prefix>/release/<release_tag> with the release tagged as <release_tag>."
+  # TODO: exit with error code
+fi
+
+echo "TODO: check for $TMPDIR"
+
+arg_tag=$1
+arg_prefix=$2
+
+log () {
+    local msg=$1
+    if [[ -n $_VERBOSITY ]]; then 
+        echo $msg
+    fi
+}
+
+# modify tag by stripping "hlrs-release-" prefix
+canonize_tag () {
+    echo ${1##hlrs-release-}
+}
+
+# create and prepare destination directory
+# or return existing directory
+create_dir () {
+    local dir=$1
+    local rc
+
+    if [[ -d $dir ]]; then
+        rc=$dir
+    else
+        mkdir -p $dir
+        chmod g=u $dir
+        rc=$dir
+    fi
+    echo $rc
+}
+
+
+# process input arguments
+HLRS_SOFTWARE_STACK_RELEASE_VERSION__USER=$(canonize_tag $arg_tag)
+HLRS_OPT_PREFIX__USER=$(create_dir $arg_prefix)
+
+# Define various repo locations
+_HLRS_SPACK_REPO=file://$HOME/spack-test/dummy_repo/spack-v0.21.2.git
+_HLRS_SPACK_PLUMBING_REPO=file://$HOME/spack-test/dummy_repo/hawk-spack-env.git
+_HLRS_SPACK_CONFIG_REPO=
+
+# bootstrap environment variables 
+# (using [bash process substitution](https://tldp.org/LDP/abs/html/process-sub.html))
+source <(curl $_HLRS_SPACK_PLUMBING_REPO/envs/00_base_prefix.env)
+source <(curl $_HLRS_SPACK_PLUMBING_REPO/envs/01_release_root.env)
+source <(curl $_HLRS_SPACK_PLUMBING_REPO/envs/02_hlrs_spack_root.env)
+
+# setup plumbing directory
+curl $_HLRS_SPACK_PLUMBING_REPO/scripts/xx_checkout_repo.sh | \
+  bash -s -- $_HLRS_SPACK_PLUMBING_REPO \
+  $HLRS_SOFTWARE_STACK_RELEASE_VERSION $HLRS_SOFTWARE_STACK_RELEASE_ROOT hlrs-plumbing
+_HLRS_PLUMBING_DIR=$HLRS_SOFTWARE_STACK_RELEASE_ROOT/hlrs-plumbing
+
+# setup hlrs-spack directory
+mkdir -p $HLRS_SOFTWARE_STACK_HLRS_SPACK_ROOT
+# TODO: checkout repo as soon as available; in the meantime do
+# setup hlrs-config directory
+ln -s spack/config-hlrs $HLRS_SOFTWARE_STACK_HLRS_SPACK_ROOT/config-hlrs
+# setup $SPACK_ROOT directory
+$_HLRS_PLUMBING_DIR/scripts/xx_checkout_repo.sh $_HLRS_SPACK_REPO \
+  $HLRS_SOFTWARE_STACK_RELEASE_VERSION $HLRS_SOFTWARE_STACK_HLRS_SPACK_ROOT spack
+
+# setup opt-non-spack 
+# TODO