initial commit: make basic debian .deb package compile structure

build-deb.sh

@@ -0,0 +1,42 @@
+#!/usr/bin/env bash
+#
+# Build the project and pack it into a .deb using the standard Debian
+# toolchain (debhelper). Run this on a Debian-family system, e.g. Debian,
+# Ubuntu, or in WSL2 / a Docker container:
+#
+#   sudo apt install build-essential cmake debhelper
+#   ./build-deb.sh
+#
+# The resulting package lands in ./dist/ and can be installed with:
+#   sudo apt install ./dist/hatsune-miku-shoshitsu_*.deb
+#
+set -euo pipefail
+cd "$(dirname "$0")"
+
+# --- sanity checks ---------------------------------------------------------
+for tool in dpkg-buildpackage dpkg-deb cmake; do
+    command -v "$tool" >/dev/null 2>&1 || {
+        echo "error: '$tool' not found." >&2
+        echo "  Install the build tools first:" >&2
+        echo "    sudo apt install build-essential cmake debhelper" >&2
+        exit 1
+    }
+done
+
+# --- build the binary .deb -------------------------------------------------
+# -us  don't sign the source
+# -uc  don't sign the .changes file
+# -b   build a binary package only (no upstream source tarball needed)
+# -d   don't verify Build-Depends (we check the tools ourselves)
+#
+# dpkg-buildpackage writes the .deb into the PARENT directory.
+dpkg-buildpackage -us -uc -b -d
+
+# --- collect the artifacts into ./dist --------------------------------------
+mkdir -p dist
+mv -f ../hatsune-miku-shoshitsu_*.deb    dist/ 2>/dev/null || true
+mv -f ../hatsune-miku-shoshitsu_*.changes dist/ 2>/dev/null || true
+
+echo
+echo "Done. Debian package built:"
+ls -lh dist/*.deb