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phases: avoid N² behavior in `advanceboundary`...

phases: avoid N² behavior in `advanceboundary` We allowed duplicated entries in the deque, which each entry could potentially insert all its ancestors. So advancing boundary for the full repository would mean each revision would walk all its ancestors, resulting in O(N²) iteration. For repository of any decent size, N² is quickly insane. We introduce a simple set to avoid this and get back to reasonable performance.

Robert Bachmann - - Load All Authors

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             xml.rnc
        
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                | application/relax-ng-compact-syntax
            
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                RNCCompactLexer
            
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      # 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}

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				# 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}