[Scripts] Introduce FSDEB - a simple way to build FreeSWITCH packages…

… for Debian.

README.md

@@ -48,6 +48,10 @@ Step by step tutorials to build FreeSWITCH with provided dependency packages:
   * [Raspberry Pi](https://freeswitch.org/confluence/display/FREESWITCH/Raspberry+Pi)
   * [CentOS 7](https://freeswitch.org/confluence/display/FREESWITCH/CentOS+7+and+RHEL+7)
 
+### How to build Debian packages
+
+  * [Using FSDEB](/scripts/packaging/build)
+
 ## Downloads
 
   * [Tarballs](https://files.freeswitch.org/releases/freeswitch/)

scripts/packaging/build/README.md

@@ -0,0 +1,53 @@
+# Building FreeSWITCH packages using `FSDEB`
+## Prerequisites
+FreeSWITCH packages can be built when FreeSWITCH is cloned using `git` only.  
+(Methods described here won't work if you download a source tarball and extract it)
+
+Please make sure you have `git` and `curl` installed:
+```bash
+apt-get update
+apt-get install -y git curl
+```
+
+## Cloning FreeSWITCH
+Assuming you build Debian packages for a FreeSWITCH release (this can be your fork or another branch as well).
+
+```bash
+cd /usr/src
+git clone https://github.com/signalwire/freeswitch -b v1.10
+```
+
+## Configuring FreeSWITCH Debian repo (for dependencies)
+Since we are building a FreeSWITCH release let's configure FreeSWITCH Community Release Debian repo.  
+We recommend using [FSGET](/scripts/packaging).  
+
+Replace `<PAT or API token>` with your `SignalWire Personal Access Token (PAT)`  
+[HOWTO Create a SignalWire Personal Access Token](https://developer.signalwire.com/freeswitch/FreeSWITCH-Explained/Installation/how-to-create-a-personal-access-token/how-to-create-a-personal-access-token)
+```bash
+curl -sSL https://freeswitch.org/fsget | bash -s <PAT or API token>
+```
+
+## Building packages with `FSDEB`
+```bash
+curl -sSL https://freeswitch.org/fsdeb | bash -s -- -b 999 -o /usr/src/fsdebs/ -w /usr/src/freeswitch
+```
+That's pretty much it!
+
+## Output
+`FSDEB` will generate `.deb`, `.dsc`, `.changes`, and `.tar.*` files in the output directory:
+```bash
+ls -la /usr/src/fsdebs/
+```
+
+## Usage
+You may be interested in other arguments of `FSDEB`:
+```bash
+curl -sSL https://freeswitch.org/fsdeb | bash -s -- -b BUILD_NUMBER -o OUTPUT_DIR [-w WORKING_DIR]
+```
+
+Required:
+- `-b`: Build number (part of package version)
+- `-o`: Output directory for packages
+
+Optional:
+- `-w`: Working directory (defaults to git root, needs to be git tree)

scripts/packaging/build/fsdeb.sh

@@ -0,0 +1,117 @@
+#!/bin/bash
+
+# lint: shfmt -w -s -bn -ci -sr -fn scripts/packaging/build/build-debs-native.sh
+
+set -e          # Exit immediately if a command exits with a non-zero status
+set -u          # Treat unset variables as an error
+set -o pipefail # Return value of a pipeline is the value of the last (rightmost) command to exit with a non-zero status
+
+print_usage()
+{
+	echo "Usage: $0 -b BUILD_NUMBER -o OUTPUT_DIR [-w WORKING_DIR]"
+	exit 1
+}
+
+WORKING_DIR=$(git rev-parse --show-toplevel 2> /dev/null || pwd -P)
+
+while getopts ":b:o:w:" opt; do
+	case ${opt} in
+		b) BUILD_NUMBER=$OPTARG ;;
+		o) OUTPUT_DIR=$OPTARG ;;
+		w) WORKING_DIR=$OPTARG ;;
+		\?) print_usage ;;
+	esac
+done
+
+if [ -z "${BUILD_NUMBER:-}" ] || [ -z "${OUTPUT_DIR:-}" ]; then
+	print_usage
+fi
+
+if [ "$(id -u)" != "0" ]; then
+	echo "Non-root user detected. Execution may fail."
+fi
+
+cd "${WORKING_DIR}" || exit 1
+
+install_deps()
+{
+	apt-get update || echo "WARNING: apt-get update failed"
+	apt-get install -y \
+		apt-transport-https \
+		debhelper \
+		gnupg2 \
+		build-essential \
+		ca-certificates \
+		curl \
+		devscripts \
+		dh-autoreconf \
+		dos2unix \
+		doxygen \
+		lsb-release \
+		pkg-config \
+		wget || echo "WARNING: package installation failed"
+}
+
+export_vars()
+{
+	export CODENAME=$(lsb_release -sc)
+	if ! VERSION=$(cat ./build/next-release.txt | tr -d '\n'); then
+		echo "Failed to read version file" >&2
+		exit 1
+	fi
+	export GIT_SHA=$(git rev-parse --short HEAD)
+}
+
+setup_git_local()
+{
+	if [ -z "$(git config user.email)" ]; then
+		git config user.email "$(id -un)@localhost"
+	fi
+	if [ -z "$(git config user.name)" ]; then
+		git config user.name "$(id -un)"
+	fi
+	git config --add safe.directory '*'
+}
+
+bootstrap_freeswitch()
+{
+	./debian/util.sh prep-create-orig -n -V${VERSION}-${BUILD_NUMBER}-${GIT_SHA} -x
+	./debian/util.sh prep-create-dsc ${CODENAME}
+}
+
+install_freeswitch_deps()
+{
+	apt-get update || echo "WARNING: apt-get update failed"
+	mk-build-deps --install --remove debian/control \
+		--tool "apt-get --yes --no-install-recommends" || echo "WARNING: mk-build-deps failed"
+	apt-get --yes --fix-broken install || echo "WARNING: apt-get fix-broken failed"
+}
+
+build_source_package()
+{
+	dch -b -M -v "${VERSION}-${BUILD_NUMBER}-${GIT_SHA}~${CODENAME}" \
+		--force-distribution -D "${CODENAME}" "Nightly build, ${GIT_SHA}"
+
+	./debian/util.sh create-orig -n -V${VERSION}-${BUILD_NUMBER}-${GIT_SHA} -x
+}
+
+build_and_move()
+{
+	dpkg-source --diff-ignore=.* --compression=xz --compression-level=9 --build . \
+		&& debuild -b -us -uc \
+		&& mkdir -p "${OUTPUT_DIR}" \
+		&& mv -v ../*.{deb,dsc,changes,tar.*} "${OUTPUT_DIR}"/
+}
+
+main()
+{
+	install_deps
+	export_vars
+	setup_git_local
+	bootstrap_freeswitch
+	install_freeswitch_deps
+	build_source_package
+	build_and_move
+}
+
+main "$@"