Add pack generation workflow

.github/workflows/pack.yml

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+name: Build pack
+on:
+  workflow_dispatch:
+  pull_request:
+  push:
+    branches: [main]
+  release:
+    types: [published]
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  pack:
+    name: Generate pack
+    runs-on: ubuntu-22.04
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: Fetch tags
+        if: github.event_name == 'release'
+        run: |
+          git fetch --tags --force
+
+      - uses: Open-CMSIS-Pack/gen-pack-action@main
+        with:
+          doxygen-version: none
+          packchk-version: 1.4.1
+          gen-pack-script: ./gen_pack.sh --no-preprocess
+          gen-pack-output: ./output

gen_pack.sh

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+#!/usr/bin/env bash
+# Version: 3.1
+# Date: 2024-04-17
+# This bash script generates a CMSIS Software Pack:
+#
+
+set -o pipefail
+
+# Set version of gen pack library
+# For available versions see https://github.com/Open-CMSIS-Pack/gen-pack/tags.
+# Use the tag name without the prefix "v", e.g., 0.7.0
+REQUIRED_GEN_PACK_LIB="0.11.1"
+
+# Set default command line arguments
+DEFAULT_ARGS=(-c "v")
+
+# Pack warehouse directory - destination
+# Default: ./output
+#
+# PACK_OUTPUT=./output
+
+# Temporary pack build directory,
+# Default: ./build
+#
+# PACK_BUILD=./build
+
+# Specify directory names to be added to pack base directory
+# An empty list defaults to all folders next to this script.
+# Default: empty (all folders)
+#
+PACK_DIRS="
+  drivers
+  examples
+  licenses
+  sensors
+  shields
+"
+
+# Specify file names to be added to pack base directory
+# Default: empty
+#
+PACK_BASE_FILES="
+  LICENSE
+"
+
+# Specify file names to be deleted from pack build directory
+# Default: empty
+#
+# PACK_DELETE_FILES="
+#   <list files here>
+# "
+
+# Specify patches to be applied
+# Default: empty
+#
+# PACK_PATCH_FILES="
+#     <list patches here>
+# "
+
+# Specify addition argument to packchk
+# Default: empty
+#
+# PACKCHK_ARGS=()
+
+# Specify additional dependencies for packchk
+# Default: empty
+#
+PACKCHK_DEPS="
+  ARM.CMSIS.pdsc
+"
+
+# Optional: restrict fallback modes for changelog generation
+# Default: full
+# Values:
+# - full      Tag annotations, release descriptions, or commit messages (in order)
+# - release   Tag annotations, or release descriptions (in order)
+# - tag       Tag annotations only
+#
+PACK_CHANGELOG_MODE="tag"
+
+# Specify file patterns to be excluded from the checksum file
+# Default: <empty>
+# Values:
+# - empty          All files packaged are included in the checksum file
+# - glob pattern   One glob pattern per line. Files matching a given pattern are excluded
+#                  from the checksum file
+# - "*"            The * (match all pattern) can be used to skip checksum file creating completely.
+# 
+# PACK_CHECKSUM_EXCLUDE="
+#   <list file patterns here>
+# "
+
+#
+# custom pre-processing steps
+#
+# usage: preprocess <build>
+#   <build>  The build folder
+#
+function preprocess() {
+  # add custom steps here to be executed
+  # before populating the pack build folder
+  return 0
+}
+
+#
+# custom post-processing steps
+#
+# usage: postprocess <build>
+#   <build>  The build folder
+#
+function postprocess() {
+  # add custom steps here to be executed
+  # after populating the pack build folder
+  # but before archiving the pack into output folder
+  return 0
+}
+
+############ DO NOT EDIT BELOW ###########
+
+# Set GEN_PACK_LIB_PATH to use a specific gen-pack library root
+# ... instead of bootstrap based on REQUIRED_GEN_PACK_LIB
+if [[ -f "${GEN_PACK_LIB_PATH}/gen-pack" ]]; then
+  . "${GEN_PACK_LIB_PATH}/gen-pack"
+else
+  . <(curl -sL "https://raw.githubusercontent.com/Open-CMSIS-Pack/gen-pack/main/bootstrap")
+fi
+
+gen_pack "${DEFAULT_ARGS[@]}" "$@"
+
+exit 0