shithub: mc

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Rebuild if the toolchain was updated.

--- a/mbld/build.myr

+++ b/mbld/build.myr

@@ -126,6 +126,7 @@

 	var staletime

 	staletime = n.deptime

+	staletime = std.max(staletime, b.tctime)

 	for d : n.ndep

 		staletime = std.max(staletime, d.mtime)

 	;;

--- a/mbld/deps.myr

+++ b/mbld/deps.myr

@@ -651,3 +651,4 @@

 	std.slpush(&g.nodes, nod)

 	-> nod

 }

+

--- a/mbld/main.myr

+++ b/mbld/main.myr

@@ -152,9 +152,42 @@

 		.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

--- a/mbld/types.myr

+++ b/mbld/types.myr

@@ -7,6 +7,7 @@

 		tags	: std.htab(byte[:], (int, int, int))#

 		libs	: std.htab(byte[:], libdep#)#

 		deps	: depgraph#

+		tctime	: std.time	/* time the toolchain was updated */

 		/* in flight builds */

 		queue	: node#[:]