view contrib/xml.rnc @ 26134:e0a6908f066f

hgweb: establish class for holding per request context

Currently, hgweb applications have many instance variables holding
mutated state. This is somewhat problematic because multiple threads
may race accessing or changing this state.

This patch starts a series that will add more thread safety to
hgweb applications. It will do this by moving mutated state out
of hgweb and into per-request instances of the newly established
"requestcontext" class.

Our new class currently behaves like a proxy to hgweb instances. This
should change once all state is captured in it instead of hgweb. The
effectiveness of this proxy is demonstrated by passing instances of
it - not hgweb instances/self - to various functions.

# RelaxNG schema for "xml" log style
# Inspired by Subversion's XML log format.

start = log
node.type = xsd:string  {minLength = "40" maxLength = "40"}

log = element log { logentry+ }
logentry = element logentry {
    logentry.attlist,
    branch*, tag*, hgparent*,
    author, date,
    msg, paths?, copies?, extra*
}
logentry.attlist =
    attribute revision {xsd:nonNegativeInteger}
  & attribute node {node.type}
branch = element branch { text }
tag = element tag { text }
hgparent = element parent {hgparent.attlist, text}
hgparent.attlist =
    attribute revision {xsd:integer {minInclusive = "-1"} }
  & attribute node {node.type}
author = element author { author.attlist, text }
author.attlist =
    attribute email {text}
date = element date {xsd:dateTime}
msg = element msg {msg.attlist, text}
msg.attlist =
    attribute xml:space {"preserve"}
paths = element paths { path* }
path = element path { path.attlist, text }
path.attlist =
    # Action: (A)dd, (M)odify, (R)emove
    attribute action {"A"|"M"|"R"}
copies = element copies { copy+ }
copy = element copy { copy.attlist, text }
copy.attlist =
    attribute source {text}
extra = element extra {extra.attlist, text}
extra.attlist =
    attribute key {text}