upstream/mercurial-mirror Files · contrib/packaging/packagelib.sh

rust-dirstatemap: cache non normal and other parent set...

rust-dirstatemap: cache non normal and other parent set Performance of `hg update` was significantly worse since the introduction of the Rust `dirstatemap`. This regression was noticed by Valentin Gatien-Baron when working on a large repository, as it goes unnoticed for smaller repositories like Mercurial itself. This fix introduces the same getter/setter mechanism at `hg-core` level as for `set/get_dirs`. While this technique is, as previously discussed, quite suboptimal, it fixes an important enough problem. Refactoring `hg-core` to use the typestate pattern could be a good approach to improving code quality in a future patch. Differential Revision: https://phab.mercurial-scm.org/D8048

Mathias De Mare - - Load All Authors

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      # Extract version number into 4 parts, some of which may be empty:

      #

      # version: the numeric part of the most recent tag. Will always look like 1.3.

      #

      # type: if an rc build, "rc", otherwise empty

      #

      # distance: the distance from the nearest tag, or empty if built from a tag

      #

      # node: the node|short hg was built from, or empty if built from a tag

      gethgversion() {

          export HGRCPATH=

          export HGPLAIN=

          make cleanbutpackages

          make local PURE=--pure

          HG="$PWD/hg"

          "$HG" version > /dev/null || { echo 'abort: hg version failed!'; exit 1 ; }

          hgversion=`LANGUAGE=C "$HG" version | sed -ne 's/.*(version \(.*\))$/\1/p'`

          if echo $hgversion | grep + > /dev/null 2>&1 ; then

              tmp=`echo $hgversion | cut -d+ -f 2`

              hgversion=`echo $hgversion | cut -d+ -f 1`

              distance=`echo $tmp | cut -d- -f 1`

              node=`echo $tmp | cut -d- -f 2`

          else

              distance=''

              node=''

          fi

          if echo $hgversion | grep -E -- '[0-9]\.[0-9](\.[0-9])?rc' > /dev/null 2>&1; then

              version=`echo $hgversion | cut -d'r' -f1`

              type="rc`echo $hgversion | cut -d'c' -f2-`"

          else

              version=$hgversion

              type=''

          fi

      }

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				# Extract version number into 4 parts, some of which may be empty:
				#
				# version: the numeric part of the most recent tag. Will always look like 1.3.
				#
				# type: if an rc build, "rc", otherwise empty
				#
				# distance: the distance from the nearest tag, or empty if built from a tag
				#
				# node: the node\|short hg was built from, or empty if built from a tag
				gethgversion() {
				export HGRCPATH=
				export HGPLAIN=

				make cleanbutpackages
				make local PURE=--pure
				HG="$PWD/hg"

				"$HG" version > /dev/null \|\| { echo 'abort: hg version failed!'; exit 1 ; }

				hgversion=`LANGUAGE=C "$HG" version \| sed -ne 's/.(version \(.\))$/\1/p'`

				if echo $hgversion \| grep + > /dev/null 2>&1 ; then
				tmp=`echo $hgversion \| cut -d+ -f 2`
				hgversion=`echo $hgversion \| cut -d+ -f 1`
				distance=`echo $tmp \| cut -d- -f 1`
				node=`echo $tmp \| cut -d- -f 2`
				else
				distance=''
				node=''
				fi
				if echo $hgversion \| grep -E -- '[0-9]\.[0-9](\.[0-9])?rc' > /dev/null 2>&1; then
				version=`echo $hgversion \| cut -d'r' -f1`
				type="rc`echo $hgversion \| cut -d'c' -f2-`"
				else
				version=$hgversion
				type=''
				fi
				}