added logging

gentooimgr/__main__.py

@@ -4,6 +4,16 @@ import json
 import argparse
 import pathlib
 import copy
+import logging
+
+try:
+    import coloredlogs
+    os.environ['COLOREDLOGS_LEVEL_STYLES'] = 'spam=22;debug=28;verbose=34;notice=220;warning=202;success=118,bold;error=124;critical=background=red'
+except ImportError as e:
+    logging.log(logging.DEBUG, f"coloredlogs not available:  {e}")
+    coloredlogs = None
+
+from gentooimgr import LOG
 import gentooimgr.common
 import gentooimgr.config
 import gentooimgr.configs
@@ -13,7 +23,9 @@ def main(args):
     '''Gentoo Cloud Image Builder Utility'''
     import gentooimgr.config
     configjson = gentooimgr.config.determine_config(args)
+    prefix = args.temporary_dir
 
+    LOG.info(f'Gentoo Cloud Image Builder Utility {args.action}')
     if args.action == "build":
         import gentooimgr.builder
         gentooimgr.builder.build(args, configjson)
@@ -23,9 +35,11 @@ def main(args):
         gentooimgr.run.run(args, configjson)
 
     elif args.action == "test":
+        # empty
         import gentooimgr.test
 
     elif args.action == "clean":
+        # empty
         import gentooimgr.clean
 
     elif args.action == "status":
@@ -56,6 +70,7 @@ def main(args):
     elif args.action == "kernel":
         import gentooimgr.kernel
         gentooimgr.kernel.build_kernel(args, configjson)
+    return 0
 
 if __name__ == "__main__":
     """Gentoo Cloud Image Builder Utility"""
@@ -68,9 +83,13 @@ if __name__ == "__main__":
                         help="Use a minimal base Gentoo configuration")
 
     parser.add_argument("-t", "--temporary-dir", nargs='?', type=pathlib.Path,
-                        default=os.getcwd(), help="Path to temporary directory for downloading files")
+                        default=pathlib.Path(os.getcwd()), help="Path to temporary directory for downloading files")
     parser.add_argument("-j", "--threads", type=int, default=gentooimgr.config.THREADS,
                         help="Number of threads to use for building and emerging software")
+    parser.add_argument("-l", "--loglevel", type=int, default=logging.INFO,
+                        help="python logging level <= 50, INFO=20")
+    parser.add_argument("-y", "--days", type=int, default=7, # gentooimgr.config.DAYS
+                        help="Number of days before the files are redownloaded")
     parser.add_argument("-d", "--download-dir", type=pathlib.Path, default=os.getcwd(),
                         help="Path to the desired download directory (default: current)")
     parser.add_argument("--openrc", dest="profile", action="store_const", const="openrc",
@@ -145,9 +164,21 @@ if __name__ == "__main__":
 
     args = parser.parse_args()
 
+    assert args.loglevel < 59
+    if coloredlogs:
+        # https://pypi.org/project/coloredlogs/
+        coloredlogs.install(level=args.loglevel,
+                        logger=LOG,
+                        # %(asctime)s,%(msecs)03d %(hostname)s [%(process)d]
+                        fmt='%(name)s %(levelname)s %(message)s'
+                        )
+    else:
+        logging.basicConfig(level=args.loglevel) #  logging.INFO
+    logging.basicConfig(level=args.loglevel)
+
     isos = gentooimgr.common.find_iso(args.download_dir)
     if args.action == "run" and args.iso is None and len(isos) > 1:
-        print(f"Error: multiple iso files were found in {args.download_dir}, please specify one using `--iso [iso]`")
+        LOG.error(f"Error: multiple iso files were found in {args.download_dir}, please specify one using `--iso [iso]`")
         sys.exit(1)