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

discovery-helper: use reflink copy if available...

discovery-helper: use reflink copy if available A reflink copy will copy the files "as usual" but keep using the same data block underneath. This is only supported by "copy on write" file system like btrfs or zfs. This will achieve similar performance that the existing hardlink clone that Mercurial performs with the same initial space saving. However, it will behave better on revlogs start being touch by strip. Instead of duplicating all data in the touched revlogs, only the block actually affected by the strip will be duplicated. This save a lot of space when building many variants of large repositories. The --reflink=always flag make sure the `cp` call fails if reflink copies are not supported. Falling back to local clone.

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
				}