shithub: mc

ref: 79bd9957c85b57f31089719c9715e66e99296bbc
dir: /mbld/clean.myr/

use std

use "config.use"
use "deps.use"
use "opts.use"
use "parse.use"
use "types.use"
use "util.use"

pkg bld =
	const cleanall	: (b : build# -> bool)
	const clean	: (b : build#, targ : byte[:] -> bool)
;;

const cleanall = {b
	for tn in b.all
		match gettarg(b.targs, tn)
		| `Bin bt:
			cleanup(b, bt, bt.inputs)
		| `Lib lt:
			cleanup(b, lt, lt.inputs)
		| `Gen gt:
			for f in gt.out
				if !gt.durable && std.remove(f)
					std.put("\tclean {}\n", f)
				;;
			;;
		| `Cmd ct:	/* nothing to do */
		| `Man mt:	/* nothing to do */
		;;
	;;
	-> true
}

const clean = {b, targ
	for tn in b.all
		match gettarg(b.targs, tn)
		| `Bin bt:
			if std.sleq(bt.name, targ)
				cleanup(b, bt, bt.inputs)
			;;
		| `Lib lt:
			if std.sleq(lt.name, targ)
				cleanup(b, lt, lt.inputs)
			;;
		| `Gen gt:
			for f in gt.out
				if !gt.durable && std.remove(f)
					std.put("\tclean {}\n", f)
				;;
			;;
		| `Cmd ct:
		| `Man mt:
		;;
	;;
	-> true
}

const cleanup = {b, targ, leaves
	var mchammer_files /* cant touch this */
	var keys, dg

	/*
	we want to automatically add 'clean' sources since otherwise,
	mbld won't be able to clean code after changing a build file.
	*/
	setdir(b, targ.dir)
	dg = myrdeps(b, targ, true, true)
	mchammer_files = std.mkht(std.strhash, std.streq)
	for l in leaves
		std.htput(mchammer_files, l, true)
	;;

	keys = std.htkeys(dg.deps)
	for k in keys
		if !std.htgetv(mchammer_files, k, false) && std.remove(k)
			std.put("\tclean {}\n", k)
		;;
	;;
}