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-rwxr-xr-xcontrib/gitian/gitian-build.py7
1 files changed, 5 insertions, 2 deletions
diff --git a/contrib/gitian/gitian-build.py b/contrib/gitian/gitian-build.py
index 491488efa..a8140a8a6 100755
--- a/contrib/gitian/gitian-build.py
+++ b/contrib/gitian/gitian-build.py
@@ -36,8 +36,11 @@ def setup():
os.chdir('..')
make_image_prog = ['bin/make-base-vm', '--suite', 'bionic', '--arch', 'amd64']
if args.docker:
- if not subprocess.call(['docker', '--help'], shell=False, stdout=subprocess.DEVNULL):
- print("Please install docker first manually")
+ try:
+ subprocess.check_output(['docker', '--help'])
+ except:
+ print("ERROR: Could not find 'docker' command. Ensure this is in your PATH.")
+ sys.exit(1)
make_image_prog += ['--docker']
elif not args.kvm:
make_image_prog += ['--lxc']