[gnome-continuous] Check for Ninja first

[Emmanuele Bassi <ebassi src gnome org>]

commit 4255b51d00f78880c1ec64c8f62d1ae64b77e982
Author: Emmanuele Bassi <ebassi gnome org>
Date:   Wed Nov 29 16:30:51 2017 +0000

    Check for Ninja first
    
    Some projects do not use Autotools, but still provide a Makefile. If we
    don't find a Ninja build rules file, let's fall back to the previous
    behaviour.

 src/ostree-build-compile-one |   14 +++++++-------
 1 files changed, 7 insertions(+), 7 deletions(-)
---
diff --git a/src/ostree-build-compile-one b/src/ostree-build-compile-one
index 26ed4eb..5b01f3d 100755
--- a/src/ostree-build-compile-one
+++ b/src/ostree-build-compile-one
@@ -213,25 +213,25 @@ def main(args):
     use_ninja = False
     buildfile_path = None
 
-    for name in ['Makefile', 'makefile', 'GNUmakefile']:
+    for name in ['build.ninja']:
         buildfile_path = os.path.join(builddir, name)
         if os.path.exists(buildfile_path):
-            use_make = True
+            use_ninja = True
             break
 
-    for name in ['build.ninja']:
+    for name in ['Makefile', 'makefile', 'GNUmakefile']:
         buildfile_path = os.path.join(builddir, name)
         if os.path.exists(buildfile_path):
-            use_ninja = True
+            use_make = True
             break
 
     if buildfile_path is None:
         fatal("No build rules file found")
 
-    if use_make:
-        args = list(makeargs)
-    else:
+    if use_ninja:
         args = list(ninjaargs)
+    else:
+        args = list(makeargs)
 
     user_specified_jobs = False
     for arg in args: