Fix regeneration rule so it is not triggered needlessly.

1 files changed, 5 insertions, 5 deletions

diff --git a/run_tests.py b/run_tests.py
index eb44bd9..2046509 100755
--- a/run_tests.py
+++ b/run_tests.py
@@ -19,15 +19,15 @@ import os, subprocess, shutil, sys
 
 test_build_dir = 'work area'
 install_dir = os.path.join(os.path.split(os.path.abspath(__file__))[0], 'install dir')
-use_shell = len(sys.argv) == 1
+use_shell = len(sys.argv) > 1
 builder_command = './builder.py'
 if use_shell:
-    generator_flags = []
+    generator_flags = ['--generator', 'shell']
     compile_commands = ['compile.sh']
     test_commands = ['run_tests.sh']
     install_commands = ['install.sh']
 else:
-    generator_flags = ['--generator', 'ninja']
+    generator_flags = []
     compile_commands = ['ninja']
     test_commands = ['ninja', 'test']
     install_commands = ['ninja', 'install']
@@ -38,8 +38,8 @@ def run_test(testdir):
     os.mkdir(test_build_dir)
     os.mkdir(install_dir)
     print('Running test: ' + testdir)
-    p = subprocess.Popen([builder_command, '--prefix', install_dir, testdir, test_build_dir] +\
-                         generator_flags)
+    gen_command = [builder_command, '--prefix', install_dir, testdir, test_build_dir] + generator_flags
+    p = subprocess.Popen(gen_command)
     p.wait()
     if p.returncode != 0:
         raise RuntimeError('Generating the build system failed.')