Initial commit

devscripts/prepare_manpage.py

@@ -0,0 +1,79 @@
+from __future__ import unicode_literals
+
+import io
+import optparse
+import os.path
+import re
+
+ROOT_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
+README_FILE = os.path.join(ROOT_DIR, 'README.md')
+
+PREFIX = r'''%YOUTUBE-DL(1)
+
+# NAME
+
+youtube\-dl \- download videos from youtube.com or other video platforms
+
+# SYNOPSIS
+
+**youtube-dl** \[OPTIONS\] URL [URL...]
+
+'''
+
+
+def main():
+    parser = optparse.OptionParser(usage='%prog OUTFILE.md')
+    options, args = parser.parse_args()
+    if len(args) != 1:
+        parser.error('Expected an output filename')
+
+    outfile, = args
+
+    with io.open(README_FILE, encoding='utf-8') as f:
+        readme = f.read()
+
+    readme = re.sub(r'(?s)^.*?(?=# DESCRIPTION)', '', readme)
+    readme = re.sub(r'\s+youtube-dl \[OPTIONS\] URL \[URL\.\.\.\]', '', readme)
+    readme = PREFIX + readme
+
+    readme = filter_options(readme)
+
+    with io.open(outfile, 'w', encoding='utf-8') as outf:
+        outf.write(readme)
+
+
+def filter_options(readme):
+    ret = ''
+    in_options = False
+    for line in readme.split('\n'):
+        if line.startswith('# '):
+            if line[2:].startswith('OPTIONS'):
+                in_options = True
+            else:
+                in_options = False
+
+        if in_options:
+            if line.lstrip().startswith('-'):
+                split = re.split(r'\s{2,}', line.lstrip())
+                # Description string may start with `-` as well. If there is
+                # only one piece then it's a description bit not an option.
+                if len(split) > 1:
+                    option, description = split
+                    split_option = option.split(' ')
+
+                    if not split_option[-1].startswith('-'):  # metavar
+                        option = ' '.join(split_option[:-1] + ['*%s*' % split_option[-1]])
+
+                    # Pandoc's definition_lists. See http://pandoc.org/README.html
+                    # for more information.
+                    ret += '\n%s\n:   %s\n' % (option, description)
+                    continue
+            ret += line.lstrip() + '\n'
+        else:
+            ret += line + '\n'
+
+    return ret
+
+
+if __name__ == '__main__':
+    main()