Default to Ninja build instead of Makefiles on Linux

Author: artemdinaburg

pkgman/installers/utils.py

@@ -59,6 +59,9 @@ def get_cmake_generator(use_clang=True):
     parameters = ["-G", "Visual Studio 15 2017 Win64"]
     if use_clang:
       parameters += ["-T", "LLVM-vs2014"]
+  elif sys.platform.startswith("linux"):
+    # do ninja-build on linux for faster builds
+    parameters = ["-G", "Ninja"]
 
   return parameters
 

travis.sh

@@ -39,7 +39,7 @@ linux_initialize() {
   fi
 
   printf " > Installing the required packages...\n"
-  sudo apt-get install -qqy python2.7 build-essential python3 python3-pip clang
+  sudo apt-get install -qqy python2.7 build-essential python3 python3-pip clang ninja-build
   if [ $? -ne 0 ] ; then
     printf " x Could not install the required dependencies\n"
     return 1