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localrepo: move extension loading to a separate method...

localrepo: move extension loading to a separate method The stateful chg plan [1] requires a special repo object, where ideally all side effects caused by loading the repo object could be reverted by just dropping (gabbage collect) the loaded repo object. Currently, that is impossible because repo.__init__ calls "extensions.loadall", which may have unpredictable side-effects that cannot be reverted by dropping the repo object. This patch moves "extensions.loadall" to a separate method, so chg could subclass localrepository and make extensions loading a no-op. [1]: mercurial-scm.org/pipermail/mercurial-devel/2017-February/092547.html

Pierre-Yves David - - 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() {

          make cleanbutpackages

          make local || make local PURE=--pure

          HG="$PWD/hg"

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

          hgversion=`$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 -- '-' > /dev/null 2>&1; then

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

              type=`echo $hgversion | cut -d- -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() {
				make cleanbutpackages
				make local \|\| make local PURE=--pure
				HG="$PWD/hg"

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

				hgversion=`$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 -- '-' > /dev/null 2>&1; then
				version=`echo $hgversion \| cut -d- -f1`
				type=`echo $hgversion \| cut -d- -f2`
				else
				version=$hgversion
				type=''
				fi
				}