implement -g,--get-urls option

gallery_dl/__init__.py

@@ -37,12 +37,16 @@ def build_cmdline_parser():
         metavar="OPT", action="append", default=[],
         help="option value",
     )
+    parser.add_argument(
+        "-g", "--get-urls", dest="list_urls", action="store_true",
+        help="print download urls",
+    )
     parser.add_argument(
         "--list-modules", dest="list_modules", action="store_true",
         help="print a list of available modules/supported sites",
     )
     parser.add_argument(
-        "--list-keywords", dest="keywords", action="store_true",
+        "--list-keywords", dest="list_keywords", action="store_true",
         help="print a list of available keywords for the given URLs",
     )
     parser.add_argument(
@@ -77,7 +81,12 @@ def main():
         else:
             if not args.urls:
                 parser.error("the following arguments are required: URL")
-            jobtype = jobs.KeywordJob if args.keywords else jobs.DownloadJob
+            if args.list_urls:
+                jobtype = jobs.UrlJob
+            elif args.list_keywords:
+                jobtype = jobs.KeywordJob
+            else:
+                jobtype = jobs.DownloadJob
             for url in args.urls:
                 jobtype(url).run()
     except KeyboardInterrupt:

gallery_dl/jobs.py

@@ -8,7 +8,6 @@
 
 import os
 import sys
-import tempfile
 from . import config, extractor, downloader, text, output
 from .extractor.message import Message
 
@@ -145,3 +144,18 @@ class KeywordJob():
         for key, value in sorted(keywords.items()):
             print(key, ":", " "*(offset-len(key)), value, sep="")
         print()
+
+
+class UrlJob():
+
+    def __init__(self, url):
+        self.extractor = extractor.find(url)
+        if self.extractor is None:
+            print(url, ": No extractor found", sep="", file=sys.stderr)
+
+    def run(self):
+        if self.extractor is None:
+            return
+        for msg in self.extractor:
+            if msg[0] == Message.Url:
+                print(msg[1])