shithub: mc

ref: b0e2b68b9c662a752fe4a40ad272a326d5887ba7
dir: /mbld/main.myr/

use std
use regex
use thread

use "build"
use "config"
use "deps"
use "install"
use "opts"
use "parse"
use "test"
use "types"
use "util"
use "syssel"

const main = {args : byte[:][:]
	var b, runsrc, objdir, path, cmd, srcs
	var targname, tags, pid, ok

	cmd = std.optparse(args, &[
		.argdesc = "[inputs...]",
		.opts = [
			[.opt='j', .arg="jobs", .desc="build with at most 'jobs' jobs"],
			[.opt='t', .arg="tag", .desc="build with specified systag"],
			[.opt='T', .arg="tag", .desc="build with only the specified systag"],
			[.opt='S', .desc="generate assembly when building"],
			[.opt='I', .arg="inc", .desc="add 'inc' to your include path"],
			[.opt='R', .arg="src", .desc="source to compile and run"],
			[.opt='B', .arg="base", .desc="install into 'base'"],
			[.opt='b', .arg="bin", .desc="compile binary 'bin' from inputs"],
			[.opt='r', .arg="rt", .desc="link against runtime 'rt'"],
			[.opt='o', .arg="dir", .desc="output directory"],
			[.opt='v', .desc="increase build verbosity"],
		][:]
	])

	tags = [][:]
	runsrc = false
	targname = ""
	ok = true
	objdir = ""
	srcs = cmd.args

	bld.initopts()
	for opt : cmd.opts
		match opt
		| ('S', ""):	bld.opt_genasm = true
		| ('I', arg):	std.slpush(&bld.opt_incpaths, arg)
		| ('B', arg):	bld.opt_instbase = arg
		| ('t', tag):	std.slpush(&tags, tag)
		| ('T', tag):	std.slpush(&bld.opt_alltags, tag)
		| ('j', arg):	bld.opt_maxproc = std.getv(std.intparse(arg), 1)
		| ('o', arg):	objdir = arg
		| ('r', arg):	bld.opt_runtime = arg
		| ('v', _):	bld.opt_verbosity++
		| ('b', arg):
			if targname.len != 0
				std.fatal("at most one -b and -R may be specified\n")
			;;
			targname = arg
		| ('R', src):
			if targname.len != 0
				std.fatal("at most one -b and -R may be specified\n")
			;;
			bld.opt_verbosity = -1
			runsrc = true
			targname = std.mktemppath("runmyr")
			srcs = [src][:]
		| _:	
			std.die("unreachable\n")
		;;
	;;
	path = std.pathcat(bld.opt_instbase, config.Libpath)
	std.slpush(&bld.opt_incpaths, path)

	for (e, v) : config.Env
		std.setenv(e, v)
	;;

	b = mkbuild(tags)
	if targname.len != 0
		if srcs.len == 0
			std.fatal("nothing to compile\n")
		;;

		bld.opt_objdir = objdir
		ok = buildimm(b, targname, srcs)
		if runsrc && ok
			pid = runcmd(targname, cmd.args)
			match std.wait(pid)
			| `std.Wsuccess:	ok = true
			| _:			ok = false
			;;
			std.remove(targname)
		;;
	else
		if objdir.len > 0
			bld.opt_objdir = objdir
		;;
		findproj(b)
		bld.load(b)
		bld.deps(b)
		bld.testdeps(b)
		bld.resolve(b)
		/* default: buildall */
		if cmd.args.len == 0
			ok = bld.buildtarg(b, "all")
		else
			match cmd.args[0]
			| "clean":	ok = bld.clean(b)
			| "install":	ok = bld.install(b)
			| "uninstall":	ok = bld.uninstall(b)
			| "test":	ok = bld.test(b, cmd.args[1:])
			| "bench":	ok = bld.bench(b, cmd.args[1:])
			| "list":	ok = show(b, cmd.args[1:])
			| _:
				for target : cmd.args
					ok = ok && bld.buildtarg(b, target)
				;;
			;;
		;;
	;;
	std.exit(ok ? 0 : 1)
}

const buildimm = {b, targ, inputs
	var mt : bld.myrtarg

	mt = [
		.name=targ,
		.inputs=inputs,
		.runtime=bld.opt_runtime,
		.incpath=bld.opt_incpaths,
		.libdeps=[][:]
	]
	std.slpush(&b.all, "__out__")
	std.htput(b.targs, "__out__", `bld.Bin &mt)
	bld.deps(b)
	bld.resolve(b)
	-> bld.buildtarg(b, "all")
}

const runcmd = {bin, args
	var sl

	sl = std.sldup([bin][:])
	-> bld.run(std.sljoin(&sl, args), "")
}

const mkbuild = {tags
	var b

	b = std.zalloc()
	b.libs = std.mkht()
	b.proc = std.mkht()
	b.targs = std.mkht()
	b.tags = std.mkht()
	b.deps = std.mk([
		.targs = std.mkht(),
		.gen = std.mkht(),
		.leaves = [][:],
		.nodes = [][:],
	])
	b.tctime = tctime()
	bld.addsysattrs(b, tags)
	-> b
}

const tctime = {
	var path : byte[1024]
	var tm

	tm = 0
	for bin : [bld.opt_muse, bld.opt_mc][:]
		match which(path[:], bin)
		| `std.None:
		| `std.Some p:
			match std.fmtime(p)
			| `std.Ok t:	tm = std.max(tm, t)
			| `std.Err e:	tm = std.now()
			;;
		;;
	;;
	-> tm
}

const which = {buf, name
	var path, f

	path = std.getenvv("PATH", "/bin")
	for p : std.bysplit(path, ":")
		f = std.bfmt(buf, "{}/{}", p, name)
		if std.fexists(f)
			-> `std.Some f
		;;
	;;
	-> `std.None
}


const findproj = {b
	var dir

	dir = std.getcwd()
	while dir.len > 0 && !std.eq(dir, "/")
		if std.chdir(dir) && std.fexists("bld.proj")
			b.basedir = dir
			b.rootdir = dir
			break
		;;
		dir = std.dirname(dir)
	;;
	if dir.len > 0 && std.eq(b.basedir, "/")
		std.fatal("could not find bld.proj\n")
	;;
}

const show = {b, targs
	var k
	
	k = std.htkeys(b.targs)
	std.put("{j=\n}\n", k)
	std.slfree(k)
	-> true
}