Major infrastructure changes, part 2.

* Moved helpers, common and triggers dirs into xbps-src, where
  they belong.
* Renamed the templates dir to srcpkgs, it was so redundant before.
* Make it possible to add subpkgs with no restriction in names, for
  example udev now has a subpkgs called "libgudev". Previously
  subpkgs were named "${sourcepkg}-${pkgname}".
* xbps-src: changed to look for template files in current directory.
  That means that most arguments from the targets have been removed.
* xbps-src: added a reinstall target, to remove + install.
* xbps-src: do not overwrite binpkgs by default, skip them.

And more that I forgot because it's a mega-commit that I've been
working for some days already...

--HG--
extra : convert_revision : 0f466878584d1e6895d2a234f07ea1b2d1e61b3e

xbps-src/triggers/initramfs-tools

@@ -0,0 +1,68 @@
+#!/bin/sh -e
+#
+# Runs update-initramfs(8) to create/update an initramfs for specified
+# version (if the pkg that is triggering it) or for the currently
+# installed kernel otherwise.
+#
+# Arguments:	$1 = action [run/targets]
+#		$2 = target [post-install/post-remove]
+#		$3 = pkgname
+#		$4 = version
+#
+ACTION="$1"
+TARGET="$2"
+PKGNAME="$3"
+VERSION="$4"
+
+update_initramfs=usr/sbin/update-initramfs
+
+case "$ACTION" in
+targets)
+	echo "post-install post-remove"
+	;;
+run)
+	[ ! -x ${update_initramfs} ] && exit 0
+
+	initramfs_args="update-initramfs"
+
+	if [ "$PKGNAME" = "kernel" ]; then
+		if [ "$TARGET" = "post-remove" ]; then
+			exit 0
+		fi
+		if [ ! -f var/lib/initramfs-tools/${VERSION} ]; then
+			# Create new initramfs
+			initramfs_args="-c -t -k ${VERSION}"
+		else
+			# Update existing initramfs
+			initramfs_args="-u -t -k ${VERSION}"
+		fi
+	else
+		# Update initramfs for all kernels
+		initramfs_args="-u -t -k all"
+	fi
+
+	if [ ! -e /proc/filesystems ]; then
+		mount -t proc proc /proc
+		proc_mounted=1
+	fi
+
+	if [ ! -e /sys/kernel/vmcoreinfo ]; then
+		mount -t sysfs sysfs /sys
+		sys_mounted=1
+	fi
+
+	${update_initramfs} ${initramfs_args}
+
+	if [ -n "$proc_mounted" ]; then
+		umount /proc
+	fi
+	if [ -n "$sys_mounted" ]; then
+		umount /sys
+	fi
+	;;
+*)
+	exit 1
+	;;
+esac
+
+exit 0