Mk/Uses/ninja.mk: Add support for devel/samurai (D29353)

Samurai is a Ninja-compatible build tool with fewer dependencies
than Ninja.  Hook it to the framework via a new NINJA_DEFAULT.

This also adds %p to NINJA_STATUS to make Ninja or Samurai print
the percentage of completed jobs to make it easier to eyeball how
much of the build is done.

PR:		254678
Exp-run	by:	antoine

1 files changed, 56 insertions, 5 deletions

diff --git a/Mk/Uses/ninja.mk b/Mk/Uses/ninja.mk
index e67d6e488841..6f71484f1ec4 100644
--- a/Mk/Uses/ninja.mk
+++ b/Mk/Uses/ninja.mk
@@ -2,26 +2,77 @@
 #
 # Feature:		ninja
 # Usage:		USES=ninja
+# Valid ARGS:		build, make (default), run
+#
+# build			add a build dependency on ninja
+# make			use ninja for the build instead of make, implies "build"
+# run			add a run dependency on ninja
 #
 # MAINTAINER: portmgr@FreeBSD.org
 
 .if !defined(_INCLUDE_USES_NINJA_MK)
 _INCLUDE_USES_NINJA_MK=	yes
 
-.if !empty(ninja_ARGS)
-IGNORE=	Incorrect 'USES+= ninja:${ninja_ARGS}' ninja takes no arguments
+_valid_ARGS=	build make run
+
+.for _arg in ${ninja_ARGS}
+.    if empty(_valid_ARGS:M${_arg})
+IGNORE=	'USES+= ninja:${ninja_ARGS}' usage: argument [${_arg}] is not recognized
+.    endif
+.endfor
+
+.if empty(ninja_ARGS)
+ninja_ARGS+=	make
 .endif
 
-MAKE_ARGS+=	-v
+.if ${ninja_ARGS:Mmake}
+ninja_ARGS+=	build
+.endif
+
+.if ${NINJA_DEFAULT} == ninja
+NINJA_CMD=	ninja
+_NINJA_PORT=	devel/ninja
+.elif ${NINJA_DEFAULT} == samurai
+NINJA_CMD=	samu
+_NINJA_PORT=	devel/samurai
+MAKE_ENV+=	SAMUFLAGS="-v -j${MAKE_JOBS_NUMBER}"
+.  if ${ninja_ARGS:Mbuild} && !${BINARY_ALIAS:U:Mninja=*}
+# Cmake and Meson have native support for Samurai and detect and
+# use it when Ninja is not available in the build environment.  The
+# alias is needed for other ports which call Ninja directly and do
+# not fall back to Samurai. There should be no harm in providing it
+# generally.
+BINARY_ALIAS+=	ninja=samu
+.  endif
+.else
+IGNORE=	invalid DEFAULT_VERSIONS+=ninja=${NINJA_DEFAULT}
+.endif
 
-BUILD_DEPENDS+=	ninja:devel/ninja
+.if ${ninja_ARGS:Mbuild}
+BUILD_DEPENDS+=	${NINJA_CMD}:${_NINJA_PORT}
+# Humanize build log and include percentage of completed jobs %p in it.
+# See samu(1) or the Ninja manual.
+MAKE_ENV+=	NINJA_STATUS="[%p %s/%t] "
+.endif
 
+.if ${ninja_ARGS:Mmake}
+.  if ${NINJA_DEFAULT} == ninja
+# samu does not support GNU-style args, so we cannot just append
+# -v last.  samu gets this via SAMUFLAGS above but ninja does not
+# support an equivalent environment variable.
+MAKE_ARGS+=	-v
+.  endif
 CMAKE_ARGS+=	-GNinja
 MAKEFILE=
-MAKE_CMD=	ninja
+MAKE_CMD=	${NINJA_CMD}
 MAKE_FLAGS=
 # Set a minimal job of 1
 _MAKE_JOBS=	-j${MAKE_JOBS_NUMBER}
 _DESTDIR_VIA_ENV=	yes
+.endif
+
+.if ${ninja_ARGS:Mrun}
+RUN_DEPENDS+=	${NINJA_CMD}:${_NINJA_PORT}
+.endif
 
 .endif