X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=tools%2Fmake-man-rules.py;h=e75bfffba140c6cab9508618acc9d30b358a8c03;hp=0d1ca244c467d0b8bba7fdd85d42bc0f9703eee9;hb=0eb3cc88504b5d8f740764047ac5162b67992386;hpb=3c3e5f4276a893791110b03984735654372aa33a

diff --git a/tools/make-man-rules.py b/tools/make-man-rules.py
index 0d1ca244c..e75bfffba 100644
--- a/tools/make-man-rules.py
+++ b/tools/make-man-rules.py
@@ -42,8 +42,14 @@ endif
 
 HEADER = '''\
 # Do not edit. Generated by make-man-rules.py.
-# Regenerate with 'make all update-man-list'.
-
+# To regenerate:
+#   1. Create, update, or remove source .xml files in man/
+#   2. Run 'make update-man-list'
+#   3. Run 'make man' to generate manpages
+#
+# To make a man page conditional on a configure switch add
+# attribute conditional="ENABLE_WHAT" or conditional="WITH_WHAT"
+# to <refentry> element.
 '''
 
 HTML_ALIAS_RULE = '''\
@@ -53,8 +59,10 @@ HTML_ALIAS_RULE = '''\
 
 FOOTER = '''\
 
+# Really, do not edit this file.
+
 EXTRA_DIST += \\
-       {files}
+	{files}
 '''
 
 def man(page, number):
@@ -66,6 +74,8 @@ def xml(file):
 def add_rules(rules, name):
     xml = xml_parse(name)
     # print('parsing {}'.format(name), file=sys.stderr)
+    if xml.getroot().tag != 'refentry':
+        return
     conditional = xml.getroot().get('conditional') or ''
     rulegroup = rules[conditional]
     refmeta = xml.find('./refmeta')
@@ -86,7 +96,11 @@ def create_rules(xml_files):
     " {conditional => {alias-name => source-name}} "
     rules = collections.defaultdict(dict)
     for name in xml_files:
-        add_rules(rules, name)
+        try:
+            add_rules(rules, name)
+        except Exception:
+            print("Failed to process", name, file=sys.stderr)
+            raise
     return rules
 
 def mjoin(files):