Add release script

Add a script to generate the whole release properly.

It first builds locally in release mode, then execute tests. Then it
builds archives for Windows. Finally, it puts all release files (Windows
archives, prebuilt server and checksums) in a separate release
directory.

Makefile.CrossWindows

@@ -34,7 +34,7 @@ WIN32_TARGET := $(WIN32_TARGET_DIR)-$(VERSION).zip
 WIN64_TARGET := $(WIN64_TARGET_DIR)-$(VERSION).zip
 
 release: clean zip-win32 zip-win64 sums
-	@echo "Release created in $(DIST)/."
+	@echo "Windows archives generated in $(DIST)/"
 
 clean:
 	$(GRADLE) clean

release.sh

@@ -0,0 +1,35 @@
+#!/bin/bash
+set -e
+
+# build and test locally
+BUILDDIR=build_release
+rm -rf "$BUILDDIR"
+meson "$BUILDDIR" --buildtype release --strip -Db_lto=true
+cd "$BUILDDIR"
+ninja
+ninja test
+cd -
+
+# build Windows releases
+make -f Makefile.CrossWindows
+
+# the generated server must be the same everywhere
+cmp "$BUILDDIR/server/scrcpy-server.jar" dist/scrcpy-win32/scrcpy-server.jar
+cmp "$BUILDDIR/server/scrcpy-server.jar" dist/scrcpy-win64/scrcpy-server.jar
+
+# get version name
+TAG=$(git describe --tags --always)
+
+# create release directory
+mkdir -p "release-$TAG"
+cp "$BUILDDIR/server/scrcpy-server.jar" "release-$TAG/scrcpy-server-$TAG.jar"
+cp "dist/scrcpy-win32-$TAG.zip" "release-$TAG/"
+cp "dist/scrcpy-win64-$TAG.zip" "release-$TAG/"
+
+# generate checksums
+cd "release-$TAG"
+sha256sum "scrcpy-server-$TAG.jar" \
+          "scrcpy-win32-$TAG.zip" \
+          "scrcpy-win64-$TAG.zip" > SHA256SUMS.txt
+
+echo "Release generated in release-$TAG/"