[oe-commits] [openembedded-core] 24/32: cmake: allow the generator to be changed

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rpurdie pushed a commit to branch master-next
in repository openembedded-core.

commit 5726162a92011915ed87a174fe0b1102fd0c91ca
Author: Ross Burton <ross.burton at intel.com>
AuthorDate: Fri Jan 5 16:39:28 2018 +0000

    cmake: allow the generator to be changed
    
    Add OECMAKE_GENERATOR variable to control which generator is used by CMake,
    defaulting to the upstream default of Unix Makefiles for now.  The other
    supported option is Ninja, which is faster than Make for large projects (for
    example, using Ninja takes three minutes off webkitgtk:do_compile for me).
    
    Signed-off-by: Ross Burton <ross.burton at intel.com>
---
 meta/classes/cmake.bbclass | 20 ++++++++++++++++++--
 1 file changed, 18 insertions(+), 2 deletions(-)

diff --git a/meta/classes/cmake.bbclass b/meta/classes/cmake.bbclass
index 55698e6..74a9521 100644
--- a/meta/classes/cmake.bbclass
+++ b/meta/classes/cmake.bbclass
@@ -7,6 +7,23 @@ B = "${WORKDIR}/build"
 # We need to unset CCACHE otherwise cmake gets too confused
 CCACHE = ""
 
+# What CMake generator to use.
+# The supported options are "Unix Makefiles" or "Ninja".
+OECMAKE_GENERATOR ?= "Unix Makefiles"
+
+python() {
+    generator = d.getVar("OECMAKE_GENERATOR")
+    if generator == "Unix Makefiles":
+        args = "-G 'Unix Makefiles' -DCMAKE_MAKE_PROGRAM=" + d.getVar("MAKE")
+        d.setVar("OECMAKE_GENERATOR_ARGS", args)
+        d.setVarFlag("do_compile", "progress", "percent")
+    elif generator == "Ninja":
+        d.appendVar("DEPENDS", " ninja-native")
+        d.setVar("OECMAKE_GENERATOR_ARGS", "-G Ninja -DCMAKE_MAKE_PROGRAM=ninja")
+        d.setVarFlag("do_compile", "progress", "outof:^\[(\d+)/(\d+)\]\s+")
+    else:
+        bb.fatal("Unknown CMake Generator %s" % generator)
+}
 # C/C++ Compiler (without cpu arch/tune arguments)
 OECMAKE_C_COMPILER ?= "`echo ${CC} | sed 's/^\([^ ]*\).*/\1/'`"
 OECMAKE_CXX_COMPILER ?= "`echo ${CXX} | sed 's/^\([^ ]*\).*/\1/'`"
@@ -121,9 +138,9 @@ cmake_do_configure() {
 	fi
 
 	cmake \
+	  ${OECMAKE_GENERATOR_ARGS} \
 	  $oecmake_sitefile \
 	  ${OECMAKE_SOURCEPATH} \
-	  -DCMAKE_MAKE_PROGRAM=${MAKE} \
 	  -DCMAKE_INSTALL_PREFIX:PATH=${prefix} \
 	  -DCMAKE_INSTALL_BINDIR:PATH=${@os.path.relpath(d.getVar('bindir'), d.getVar('prefix'))} \
 	  -DCMAKE_INSTALL_SBINDIR:PATH=${@os.path.relpath(d.getVar('sbindir'), d.getVar('prefix'))} \
@@ -142,7 +159,6 @@ cmake_do_configure() {
 	  -Wno-dev
 }
 
-do_compile[progress] = "percent"
 cmake_do_compile()  {
 	bbnote VERBOSE=1 cmake --build '${B}' --target ${OECMAKE_TARGET_COMPILE} -- ${EXTRA_OECMAKE_BUILD}
 	VERBOSE=1 cmake --build '${B}' --target ${OECMAKE_TARGET_COMPILE} -- ${EXTRA_OECMAKE_BUILD}

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