ci: build simplex-chat CLI deb package (#6474)

* ci: build simplex-chat CLI deb package

* scripts/build-cli-deb: reproducible size (also actual file size)

* scripts/build-cli-deb: fix epoch

* scripts/build-cli-deb: set epoch to 1764547200

scripts/desktop/build-cli-deb.sh

@@ -0,0 +1,37 @@
+#!/usr/bin/env sh
+set -eu
+
+export SOURCE_DATE_EPOCH=1764547200
+
+CLI_VERSION="$1"
+CLI_PATH_TO_BIN="${2:-/out/simplex-chat}"
+BUILD_FOLDER="${3:-/out/deb-build}"
+
+size=$(stat -c '%s' "$CLI_PATH_TO_BIN" | awk '{printf "%.0f\n", ($1+1023)/1024}')
+arch=$(case "$(uname -m)" in x86_64) printf "amd64" ;; aarch64) printf "arm64" ;; *) printf "unknown" ;; esac)
+package='simplex-chat'
+
+mkdir "$BUILD_FOLDER"
+cd "$BUILD_FOLDER"
+
+mkdir -p ./${package}/DEBIAN
+mkdir -p ./${package}/usr/bin
+cat > ./${package}/DEBIAN/control << EOF
+Package: ${package}
+Version: ${CLI_VERSION}
+Section: Messenger
+Priority: optional
+Architecture: ${arch}
+Maintainer: SimpleX Chat <chat@simplex.chat>
+Description: SimpleX - the first messaging platform that has no user identifiers of any kind - 100% private by design! (CLI)
+Installed-Size: ${size}
+EOF
+
+cp "$CLI_PATH_TO_BIN" ./${package}/usr/bin/simplex-chat
+chmod +x ./${package}/usr/bin/simplex-chat
+
+find ./${package} -exec touch -d "@${SOURCE_DATE_EPOCH}" {} +
+
+dpkg-deb --build --root-owner-group --uniform-compression ./${package}
+
+strip-nondeterminism "./${package}.deb"