add capnp and ffmpeg (#4)

capnproto/build.sh

@@ -0,0 +1,69 @@
+#!/usr/bin/env bash
+set -e
+
+DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" >/dev/null && pwd)"
+cd "$DIR"
+
+VERSION="1.0.1"
+INSTALL_DIR="$DIR/capnproto/install"
+
+# Idempotent: skip if already built
+if [ -x "$INSTALL_DIR/bin/capnp" ]; then
+  echo "capnproto already present, skipping build."
+  exit 0
+fi
+
+NJOBS="$(nproc 2>/dev/null || sysctl -n hw.ncpu 2>/dev/null || echo 2)"
+
+# Clone
+if [ ! -d "capnproto-src" ]; then
+  git clone --depth 1 --branch "v${VERSION}" https://github.com/capnproto/capnproto.git capnproto-src
+fi
+
+# Build
+PREFIX="$DIR/build/prefix"
+mkdir -p "$DIR/build"
+
+cmake -S capnproto-src -B "$DIR/build" \
+  -DCMAKE_BUILD_TYPE=MinSizeRel \
+  -DCMAKE_INTERPROCEDURAL_OPTIMIZATION=ON \
+  -DCMAKE_INSTALL_PREFIX="$PREFIX" \
+  -DCMAKE_INSTALL_LIBDIR=lib \
+  -DCMAKE_POLICY_VERSION_MINIMUM=3.5 \
+  -DWITH_OPENSSL=OFF \
+  -DBUILD_TESTING=OFF \
+  -DBUILD_SHARED_LIBS=OFF
+
+cmake --build "$DIR/build" -j"$NJOBS"
+cmake --install "$DIR/build"
+
+# Copy to package install dir
+rm -rf "$INSTALL_DIR"
+mkdir -p "$INSTALL_DIR"/{bin,lib,include}
+
+# Binaries
+cp "$PREFIX/bin/capnp" "$INSTALL_DIR/bin/"
+cp "$PREFIX/bin/capnpc-c++" "$INSTALL_DIR/bin/"
+ln -sf capnp "$INSTALL_DIR/bin/capnpc"
+
+# Libraries (only the ones openpilot needs)
+cp "$PREFIX/lib/libcapnp.a" "$INSTALL_DIR/lib/"
+cp "$PREFIX/lib/libkj.a" "$INSTALL_DIR/lib/"
+
+# Headers
+cp -r "$PREFIX/include/capnp" "$INSTALL_DIR/include/"
+cp -r "$PREFIX/include/kj" "$INSTALL_DIR/include/"
+
+# Strip binaries and libs
+strip "$INSTALL_DIR/bin/capnp" "$INSTALL_DIR/bin/capnpc-c++" 2>/dev/null || true
+
+# Strip unused kj objects from libkj.a (not needed by openpilot)
+for obj in filesystem.c++.o main.c++.o test-helpers.c++.o; do
+  ar d "$INSTALL_DIR/lib/libkj.a" "$obj" 2>/dev/null || true
+done
+
+# Clean up
+rm -rf capnproto-src "$DIR/build"
+
+echo "Installed capnproto to $INSTALL_DIR"
+du -sh "$INSTALL_DIR"