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authorAlex Bennée <alex.bennee@linaro.org>2018-06-08 16:20:48 +0100
committerAlex Bennée <alex.bennee@linaro.org>2018-06-20 22:13:39 +0100
commitf97da1f71700a3417953fa85bf1394307e5dd013 (patch)
tree35e33d9b13f198cba13606b8f33526ec66a8e48b /tests/docker/docker.py
parentf9172822e7a07db346e21d461e2a61ffcee7c77e (diff)
docker: docker.py add check sub-command
This command allows you to check if we need to re-build a docker image. If the image isn't in the repository or the checksums don't match then we return false and some text (for processing in makefiles). Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Diffstat (limited to 'tests/docker/docker.py')
-rwxr-xr-xtests/docker/docker.py38
1 files changed, 37 insertions, 1 deletions
diff --git a/tests/docker/docker.py b/tests/docker/docker.py
index 6a9f2f224b..e4f37820e0 100755
--- a/tests/docker/docker.py
+++ b/tests/docker/docker.py
@@ -184,8 +184,14 @@ class Docker(object):
stderr=subprocess.STDOUT,
**kwargs)
+ def inspect_tag(self, tag):
+ try:
+ return self._output(["inspect", tag])
+ except subprocess.CalledProcessError:
+ return None
+
def get_image_dockerfile_checksum(self, tag):
- resp = self._output(["inspect", tag])
+ resp = self.inspect_tag(tag)
labels = json.loads(resp)[0]["Config"].get("Labels", {})
return labels.get("com.qemu.dockerfile-checksum", "")
@@ -447,6 +453,36 @@ class CcCommand(SubCommand):
return Docker().command("run", cmd, args.quiet)
+class CheckCommand(SubCommand):
+ """Check if we need to re-build a docker image out of a dockerfile.
+ Arguments: <tag> <dockerfile>"""
+ name = "check"
+
+ def args(self, parser):
+ parser.add_argument("tag",
+ help="Image Tag")
+ parser.add_argument("dockerfile",
+ help="Dockerfile name")
+
+ def run(self, args, argv):
+ dockerfile = open(args.dockerfile, "rb").read()
+ tag = args.tag
+
+ dkr = Docker()
+ info = dkr.inspect_tag(tag)
+ if info is None:
+ print("Image does not exist")
+ return 1
+
+ if dkr.image_matches_dockerfile(tag, dockerfile):
+ if not args.quiet:
+ print("Image is up to date")
+ return 0
+ else:
+ print("Image needs updating")
+ return 1
+
+
def main():
parser = argparse.ArgumentParser(description="A Docker helper",
usage="%s <subcommand> ..." % os.path.basename(sys.argv[0]))