Refactor of rpm downloading

Issue-ID: OOM-1803

Change-Id: Ic1efb371409daddd5910e067ad1f0a85cc7db4ab
Signed-off-by: Milan Verespej <m.verespej@partner.samsung.com>

1 files changed, 130 insertions, 0 deletions

diff --git a/build/download/rpm_downloader.py b/build/download/rpm_downloader.py
new file mode 100755
index 00000000..92ae6a78
--- /dev/null
+++ b/build/download/rpm_downloader.py
@@ -0,0 +1,130 @@
+#! /usr/bin/env python
+# -*- coding: utf-8 -*-
+
+#   COPYRIGHT NOTICE STARTS HERE
+
+#   Copyright 2019 © Samsung Electronics Co., Ltd.
+#
+#   Licensed under the Apache License, Version 2.0 (the "License");
+#   you may not use this file except in compliance with the License.
+#   You may obtain a copy of the License at
+#
+#       http://www.apache.org/licenses/LICENSE-2.0
+#
+#   Unless required by applicable law or agreed to in writing, software
+#   distributed under the License is distributed on an "AS IS" BASIS,
+#   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#   See the License for the specific language governing permissions and
+#   limitations under the License.
+
+#   COPYRIGHT NOTICE ENDS HERE
+
+import argparse
+import datetime
+import logging
+import os
+import subprocess
+import sys
+import timeit
+from collections import defaultdict
+
+from command_downloader import CommandDownloader
+
+log = logging.getLogger(name=__name__)
+
+
+class RpmDownloader(CommandDownloader):
+    def __init__(self, *list_args):
+        super().__init__('rpm packages', 'yumdownloader', *list_args)
+        # beneficial to have it in same format
+
+    @property
+    def check_table(self):
+        """
+        Return check table for rpm packages
+        :return: '' not implemented
+        """
+        log.warning('Check mode for rpms is not implemented.')
+        return ''
+
+    @staticmethod
+    def _download_rpm_set(dst, rpms):
+        command = 'yumdownloader --destdir={} {}'.format(dst, ' '.join(rpms))
+        log.info('Running command: {}'.format(command))
+        log.info(
+            subprocess.check_output(command.split(), stderr=subprocess.STDOUT).decode())
+        log.info('Downloaded: {}'.format(', '.join(sorted(rpms))))
+
+    def missing(self):
+        """
+        Check for missing rpms (not downloaded)
+        :return: dictionary of missing items grouped by dst dir
+        """
+        # we need slightly different format for yumdownloader
+        self._missing = defaultdict(set)
+        for item, dst in self._data_list.items():
+            self._missing[dst].add(item)
+        return self._missing
+
+    def _is_missing(self, item):
+        """
+        Check if item is missing
+        :param item: item to check
+        :return: it is always missing because not sure about downloaded filename
+        """
+        # don't know file names so always missing
+        return True
+
+    def _initial_log(self):
+        """
+        Simpler then in parent
+        """
+        class_name = type(self).__name__
+        log.info('{}: Initializing download {} {} are not present.'.format(class_name, len(self._data_list),
+                                                                           self._list_type))
+
+    def download(self):
+        """
+        Download rpm packages from lists
+        """
+        self._initial_log()
+        error_occurred = False
+
+        for dst, rpm_set in self._missing.items():
+            try:
+                self._download_rpm_set(dst, rpm_set)
+            except subprocess.CalledProcessError as err:
+                log.exception(err.output)
+                error_occurred = True
+        if error_occurred:
+            log.error('Download failed')
+            raise RuntimeError('Download unsuccessful')
+
+
+def run_cli():
+    """
+    Run as cli tool
+    """
+    parser = argparse.ArgumentParser(description='Download rpm packages from list')
+    parser.add_argument('rpm_list', metavar='rpm-list',
+                        help='File with list of npm packages to download.')
+    parser.add_argument('--output-dir', '-o', default=os.getcwd(),
+                        help='Download destination')
+
+    args = parser.parse_args()
+
+    logging.basicConfig(stream=sys.stdout, level=logging.INFO, format='%(message)s')
+
+    timer_start = timeit.default_timer()
+    try:
+        downloader = RpmDownloader([args.rpm_list, args.output_dir])
+        downloader.download()
+    except RuntimeError:
+        sys.exit(1)
+    finally:
+        log.info('Downloading finished in {}'.format(
+            datetime.timedelta(seconds=timeit.default_timer() - timer_start)))
+
+
+if __name__ == '__main__':
+    run_cli()