Automate libuv download and build

.gitignore

@@ -1,4 +1,6 @@
 build/
+.deps/
+
 *.rej
 *.orig
 *.mo

Makefile

@@ -3,12 +3,22 @@ CMAKE_FLAGS := -DCMAKE_BUILD_TYPE=Debug
 test: build/src/vim
 	cd src/testdir && make
 
-build/src/vim:
+build/src/vim: deps
 	cd build && make
 
-cmake:
-	rm -rf build
+deps: .deps/usr/lib/libuv.a
+
+.deps/usr/lib/libuv.a:
+	sh -e scripts/get-libuv.sh
+
+cmake: clean
 	mkdir build
 	cd build && cmake $(CMAKE_FLAGS) ../
 
-.PHONY: test cmake
+clean:
+	rm -rf build
+	for file in lua mbyte mzscheme small tiny; do \
+		rm -f src/testdir/$$file.vim; \
+	done
+
+.PHONY: test deps cmake

scripts/common.sh

@@ -0,0 +1,37 @@
+pkgroot="$(pwd)"
+deps="$pkgroot/.deps"
+prefix="$deps/usr"
+export PATH="$prefix/bin:$PATH"
+
+download() {
+	local url=$1
+	local tgt=$2
+	local sha1=$3
+
+	if [ ! -d "$tgt" ]; then
+		mkdir -p "$tgt"
+		if which wget > /dev/null 2>&1; then
+			tmp_dir=$(mktemp -d "/tmp/download_sha1check_XXXXXXX")
+			fifo="$tmp_dir/fifo"
+			mkfifo "$fifo"
+			# download, untar and calculate sha1 sum in one pass
+			(wget "$url" -O - | tee "$fifo" | \
+				(cd "$tgt";  tar --strip-components=1 -xvzf -)) &
+			sum=$(sha1sum < "$fifo" | cut -d ' ' -f1)
+			rm -rf "$tmp_dir"
+			if [ "$sum" != "$sha1" ]; then
+				echo "SHA1 sum doesn't match, expected '$sha1' got '$sum'"
+				exit 1
+			fi
+		else
+			echo "Missing wget utility"
+			exit 1
+		fi
+	fi
+}
+
+github_download() {
+	local repo=$1
+	local ver=$2
+	download "https://github.com/${repo}/archive/${ver}.tar.gz" "$3" "$4"
+}

scripts/get-libuv.sh

@@ -0,0 +1,16 @@
+. scripts/common.sh
+
+uv_repo=joyent/libuv
+uv_ver=v0.11.19
+uv_dir="$deps/uv-$uv_ver"
+uv_sha1=5539d8e99e22b438cf4a412d4cec70ac6bb519fc
+
+rm -rf "$uv_dir"
+
+github_download "$uv_repo" "$uv_ver" "$uv_dir" "$uv_sha1"
+cd "$uv_dir"
+sh autogen.sh
+./configure --prefix="$prefix"
+make
+make install
+rm "$prefix/lib/"libuv*.so "$prefix/lib/"libuv*.so.*