Add packaging scripts for Meson

It probably doesn't belong here but I don't feel like creating another
repository for this either yet.

meson/packaging/make-deb.sh

@@ -0,0 +1,28 @@
+#!/bin/sh -e
+cd "$MESON_BUILD_ROOT"
+. "$MESON_SUBDIR/meta"
+wd="`pwd`/`mktemp -d deb.XXXXXX`"
+trap "rm -rf '$wd'" INT QUIT TERM EXIT
+
+[ "$arch" = x86    ] && arch=i386
+[ "$arch" = x86_64 ] && arch=amd64
+target="$name-$version-$system-$arch.deb"
+
+echo 2.0 > "$wd/debian-binary"
+cat > "$wd/control" <<-EOF
+	Package: $name
+	Version: $version
+	Section: misc
+	Priority: optional
+	Architecture: $arch
+	Maintainer: $author
+	Description: $summary
+EOF
+fakeroot sh -e <<-EOF
+	DESTDIR="$wd/pkg" ninja install
+	cd "$wd/pkg" && tar cJf ../data.tar.xz .
+EOF
+
+(cd "$wd" && tar czf control.tar.gz ./control)
+ar rc "$target" "$wd/debian-binary" "$wd/control.tar.gz" "$wd/data.tar.xz"
+echo Written $target

meson/packaging/make-pacman.sh

@@ -0,0 +1,22 @@
+#!/bin/sh -e
+cd "$MESON_BUILD_ROOT"
+. "$MESON_SUBDIR/meta"
+wd="`pwd`/`mktemp -d pacman.XXXXXX`"
+trap "rm -rf '$wd'" INT QUIT TERM EXIT
+
+target="$name-$version-$arch.tar.xz"
+fakeroot sh -e <<-EOF
+	DESTDIR="$wd" ninja install
+	cat > "$wd/.PKGINFO" <<END
+	pkgname = $name
+	pkgver = $version-1
+	pkgdesc = $summary
+	url = $url
+	builddate = \`date -u +%s\`
+	packager = $author
+	size = \`du -sb --apparent-size | cut -f1\`
+	arch = $arch
+	END
+	cd "$wd" && tar cJf "../$target" .PKGINFO *
+	echo Written $target
+EOF

meson/packaging/meson.build

@@ -0,0 +1,11 @@
+# You need to prepare a configuration object with the required metadata
+packaging.set ('arch', target_machine.cpu_family ())
+packaging.set ('system', target_machine.system ())
+configure_file (input: 'meta.in', output: 'meta', configuration: packaging)
+
+# RPM is awful and I've given up on both manual generation (we'd have to either
+# include rpmrc data or generate fake noarch packages) and rpmbuild (just no)
+run_target ('deb',
+	command: [join_paths (meson.current_source_dir (), 'make-deb.sh')])
+run_target ('pacman',
+	command: [join_paths (meson.current_source_dir (), 'make-pacman.sh')])

meson/packaging/meta.in

@@ -0,0 +1,8 @@
+define() { [ -z "$2" ] && { echo $1 is undefined; exit 1; } || eval "$1='$2'"; }
+
+define name    "@name@"
+define version "@version@"
+define summary "@summary@"
+define author  "@author@"
+define arch    "@arch@"
+define system  "@system@"