[elbe-devel] [PATCH v2 1/6] commands: check-build: Create base for checkers

[Olivier Dion]

Checkers for a build should inherit from 'CheckBase' and register
themself with 'CheckBase.register(tag)' where 'tag' is the name of the
command on the command line.  As a special case, the command 'all'
will run all checkers.  Checkers should implement the 'run' method to
do their testing of the build.  The 'run' method should return 0 for
success.

Checkers can assume that their working directory is set to the build
directory before entering 'run'.

Any uncatch exception will result in a failure.  Calling
'self.fail(reason)', returning none 0 from 'run' or setting 'self.ret'
to none 0 will also result in a failure.

Signed-off-by: Olivier Dion <dion at linutronix.de>
---
 elbepack/commands/check-build.py | 97 ++++++++++++++++++++++++++++++++
 1 file changed, 97 insertions(+)
 create mode 100644 elbepack/commands/check-build.py

diff --git a/elbepack/commands/check-build.py b/elbepack/commands/check-build.py
new file mode 100644
index 00000000..2db8faf6
--- /dev/null
+++ b/elbepack/commands/check-build.py
@@ -0,0 +1,97 @@
+# ELBE - Debian Based Embedded Rootfilesystem Builder
+# Copyright (c) 2020 Olivier Dion <dion at linutronix.de>
+#
+# SPDX-License-Identifier: GPL-3.0-or-later
+
+import logging
+import optparse
+import os
+import tempfile
+import traceback
+
+from elbepack.log import elbe_logging
+from elbepack.treeutils import etree
+from elbepack.shellhelper import get_command_out, command_out, do, CommandError
+from elbepack.filesystem import TmpdirFilesystem
+
+DEVNULL = open(os.devnull, "w")
+
+def run_command(argv):
+
+    oparser = optparse.OptionParser(usage="usage: %prog check-build <cmd> <build-dir>")
+
+    (_, args) = oparser.parse_args(argv)
+
+    if len(args) < 2:
+        oparser.print_help()
+        os.sys.exit(20)
+
+    os.chdir(args[1])
+
+    if args[0] == "all":
+        tests = [CheckBase.tests[tag] for tag in CheckBase.tests]
+    elif args[0] in CheckBase.tests:
+        tests = [CheckBase.tests[args[0]]]
+    else:
+        print("Invalid check test %s" % args[0])
+        print("Valid tests are:\n\tall")
+        for tag in CheckBase.tests:
+            print("\t%s" % tag)
+        os.sys.exit(20)
+
+    total_cnt = 0
+    fail_cnt  = 0
+
+    with elbe_logging({"streams":None}):
+
+        for test in tests:
+
+            logging.info("Starting test %s (%s)", test.__name__, test.__doc__)
+            ret = test()()
+
+            total_cnt += 1
+            if ret:
+                fail_cnt += 1
+                logging.error("FAILED test %s (%s)", test.__name__, test.__doc__)
+
+        logging.info("Passed %d tests ouf of %d",
+                     total_cnt - fail_cnt, total_cnt)
+
+    os.sys.exit(fail_cnt)
+
+class CheckException(Exception):
+    pass
+
+# TODO:py3 Remove object inheritance
+# pylint: disable=useless-object-inheritance
+class CheckBase(object):
+
+    tests = dict()
+
+    def __init__(self):
+        self.ret = 0
+
+    def __call__(self):
+        try:
+            self.ret = self.run()
+        except CheckException as E:
+            logging.exception(E)
+            self.ret = 1
+        except: # pylint: disable=bare-except
+            logging.error(traceback.format_exc())
+            self.ret = 1
+        return self.ret
+
+    @classmethod
+    def register(cls, tag):
+        def _register(test):
+            cls.tests[tag] = test
+            return test
+        return _register
+
+    # pylint: disable=no-self-use
+    def run(self):
+        raise Exception("Check run method not implemented")
+
+    def fail(self, reason):
+        raise CheckException(reason)
-- 
2.28.0