hg-reset.sh

   1 #!/bin/sh
   2
   3 # Copyright (c) 2007, 2008 Rocco Rutte <pdmef@gmx.net> and others.
   4 # License: MIT <http://www.opensource.org/licenses/mit-license.php>
   5
   6 ROOT="`dirname $0`"
   7 REPO=""
   8 PFX="hg2git"
   9 SFX_MARKS="marks"
  10 SFX_MAPPING="mapping"
  11 SFX_HEADS="heads"
  12 SFX_STATE="state"
  13 QUIET=""
  14 PYTHON=${PYTHON:-python}
  15
  16 USAGE="[-r <repo>] -R <rev>"
  17 LONG_USAGE="Print SHA1s of latest changes per branch up to <rev> useful
  18 to reset import and restart at <rev>.
  19 If <repo> is omitted, use last hg repository as obtained from state file,
  20 GIT_DIR/$PFX-$SFX_STATE by default.
  21
  22 Options:
  23         -R      Hg revision to reset to
  24         -r      Mercurial repository to use
  25 "
  26
  27 IS_BARE=$(git rev-parse --is-bare-repository) \
  28     || (echo "Could not find git repo" ; exit 1)
  29 if test "z$IS_BARE" != ztrue; then
  30    # This is not a bare repo, cd to the toplevel
  31    TOPLEVEL=$(git rev-parse --show-toplevel) \
  32        || (echo "Could not find git repo toplevel" ; exit 1)
  33    cd $TOPLEVEL || exit 1
  34 fi
  35 GIT_DIR=$(git rev-parse --git-dir) || (echo "Could not find git repo" ; exit 1)
  36
  37 while case "$#" in 0) break ;; esac
  38 do
  39   case "$1" in
  40     -r|--r|--re|--rep|--repo)
  41       shift
  42       REPO="$1"
  43       ;;
  44     -*)
  45       # pass any other options down to hg2git.py
  46       break
  47       ;;
  48     *)
  49       break
  50       ;;
  51   esac
  52   shift
  53 done
  54
  55 # for convenience: get default repo from state file
  56 if [ x"$REPO" = x -a -f "$GIT_DIR/$PFX-$SFX_STATE" ] ; then
  57   REPO="`grep '^:repo ' "$GIT_DIR/$PFX-$SFX_STATE" | cut -d ' ' -f 2`"
  58   echo "Using last hg repository \"$REPO\""
  59 fi
  60
  61 # make sure we have a marks cache
  62 if [ ! -f "$GIT_DIR/$PFX-$SFX_MARKS" ] ; then
  63   touch "$GIT_DIR/$PFX-$SFX_MARKS"
  64 fi
  65
  66 GIT_DIR="$GIT_DIR" $PYTHON "$ROOT/hg-reset.py" \
  67   --repo "$REPO" \
  68   --marks "$GIT_DIR/$PFX-$SFX_MARKS" \
  69   --mapping "$GIT_DIR/$PFX-$SFX_MAPPING" \
  70   --heads "$GIT_DIR/$PFX-$SFX_HEADS" \
  71   --status "$GIT_DIR/$PFX-$SFX_STATE" \
  72   "$@"
  73
  74 exit $?