From fbc2e4e23d4ba93529a0cf95d8625af5b1026e29 Mon Sep 17 00:00:00 2001
From: David Runge <dave@sleepmap.de>
Date: Wed, 26 Jun 2019 23:24:36 +0200
Subject: [PATCH] create_assets.sh: Adding script to create assets (including
 any submodules) as .tar.gz in the form rack-<tag>.tar.gz in the same folder
 the script is residing in. Additionally, it can be used to create a detached
 PGP signature of the created source tarball.

---
 create_assets.sh | 125 +++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 125 insertions(+)
 create mode 100755 create_assets.sh

diff --git a/create_assets.sh b/create_assets.sh
new file mode 100755
index 00000000..8765ef05
--- /dev/null
+++ b/create_assets.sh
@@ -0,0 +1,125 @@
+#!/usr/bin/env bash
+#
+# Copyright 2019, David Runge
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+#
+# Creates assets for $upstream based on a provided tag in the form of
+# ${output_package_name}-${version}.tar.gz' and moves the file to
+# ${output_dir}.
+# Optionally creates a detached PGP signature for the tarball.
+# Requires a writable /tmp folder.
+
+set -euo pipefail
+
+get_absolute_path() {
+  cd "$(dirname "$0")" && pwd -P
+}
+
+remove_source_dir() {
+  rm -rf "${source_dir:?}/${package_name}"* \
+    "${source_dir:?}/${output_package_name}"*
+}
+
+checkout_project() {
+  remove_source_dir
+  cd "${source_dir}"
+  git clone "$upstream" --recursive
+  cd "${package_name}"
+  git checkout "${version}"
+}
+
+clean_sources() {
+  cd "${source_dir}/${package_name}"
+  find . \( -iname "*.git*" -o \
+         -iname "*.clang-format" -o \
+         -iname "*.travis.yml" -o \
+         -iname "*create_assets.sh" \) \
+         -exec rm -rfv {} +
+}
+
+rename_sources() {
+  cd "${source_dir}"
+  mv -v "${package_name}" "${output_package_name}-${version}"
+}
+
+compress_sources() {
+  cd "${source_dir}"
+  tar cvfz "${output_package_name}-${version}.tar.gz" \
+    "${output_package_name}-${version}"
+}
+
+move_sources() {
+  cd "${source_dir}"
+  mv -v "${output_package_name}-${version}.tar.gz" "${output_dir}/"
+}
+
+sign_sources() {
+  cd "${output_dir}"
+  gpg2 --default-key "${signer}" \
+       --output "${output_package_name}-${version}.tar.gz.asc" \
+       --detach-sign "${output_package_name}-${version}.tar.gz"
+}
+
+cleanup_source_dir() {
+  cd "${source_dir}"
+  rm -rf "${output_package_name}-${version}"
+}
+
+print_help() {
+  echo "Usage: $0 -v <version tag> -s <signature email>"
+  exit 1
+}
+
+upstream="https://github.com/vcvrack/rack"
+package_name="rack"
+output_package_name="rack"
+source_dir="/tmp"
+version=$(date "+%Y-%m-%d")
+signer=""
+output_dir=$(get_absolute_path "$0")
+
+
+if [ ${#@} -gt 0 ]; then
+  while getopts 'hv:s:' flag; do
+    case "${flag}" in
+      h) print_help
+          ;;
+      s) signer=$OPTARG
+          ;;
+      v) version=$OPTARG
+          ;;
+      *)
+        echo "Error! Try '${0} -h'."
+        exit 1
+        ;;
+    esac
+  done
+else
+  print_help
+fi
+
+checkout_project
+clean_sources
+rename_sources
+compress_sources
+move_sources
+if [ -n "${signer}" ]; then
+  sign_sources
+fi
+cleanup_source_dir
+
+exit 0
+
+# vim:set ts=2 sw=2 et: