upstream/mercurial-mirror Files · contrib/xml.rnc

rust-revlog: fix RevlogEntry.data() for NULL_REVISION...

rust-revlog: fix RevlogEntry.data() for NULL_REVISION Before this change, the pseudo-entry returned by `Revlog.get_entry` for `NULL_REVISION` would trigger errors in application code using it. For example, this fixes a crash spotted with changelog data while implementing RHGitaly: `Changelog.data_for_rev(-1)` was already returning the pseudo content as expected, e.g., for `hg log`, but `Changelog.entry_for_rev(-1).data()` would still crash with "corrupted revlog, hash check failed for revision -1". There is an added test for this scenario.

Robert Bachmann - - Load All Authors

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                r51639:124c44b5

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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}