hg2git.sh

   1 #!/bin/sh
   2
   3 ROOT="`dirname $0`"
   4 REPO=""
   5 PFX="hg2git"
   6 SFX_MARKS="marks"
   7 SFX_HEADS="heads"
   8 SFX_STATE="state"
   9 QUIET=""
  10
  11 USAGE="[-m <max>] [--quiet] [<repo>]"
  12 LONG_USAGE="Import hg repository <repo> up to either tip or <max>
  13 If <repo> is omitted, use last hg repository as obtained from state file,
  14 GIT_DIR/$PFX-$SFX_STATE by default."
  15
  16 . git-sh-setup
  17 cd_to_toplevel
  18
  19 while case "$#" in 0) break ;; esac
  20 do
  21   case "$1" in
  22     -r|--r|--re|--rep|--repo)
  23       shift
  24       REPO="$1"
  25       ;;
  26     --q|--qu|--qui|--quie|--quiet)
  27       QUIET="--quiet"
  28       ;;
  29     -*)
  30       # pass any other options down to hg2git.py
  31       break
  32       ;;
  33     *)
  34       break
  35       ;;
  36   esac
  37   shift
  38 done
  39
  40 # for convenience: get default repo from state file
  41 if [ x"$REPO" = x -a -f "$GIT_DIR/$PFX-$SFX_STATE" ] ; then
  42   REPO="`egrep '^:repo ' "$GIT_DIR/$PFX-$SFX_STATE" | cut -d ' ' -f 2`"
  43   echo "Using last hg repository \"$REPO\""
  44 fi
  45
  46 # make sure we have a marks cache
  47 if [ ! -f "$GIT_DIR/$PFX-$SFX_MARKS" ] ; then
  48   touch "$GIT_DIR/$PFX-$SFX_MARKS"
  49 fi
  50
  51 GIT_DIR="$GIT_DIR" python "$ROOT/hg2git.py" \
  52   --repo "$REPO" \
  53   --marks "$GIT_DIR/$PFX-$SFX_MARKS" \
  54   --heads "$GIT_DIR/$PFX-$SFX_HEADS" \
  55   --status "$GIT_DIR/$PFX-$SFX_STATE" \
  56   "$@" \
  57 | git-fast-import $QUIET --export-marks="$GIT_DIR/$PFX-$SFX_MARKS.tmp" \
  58 || die 'Git fast-import failed'
  59
  60 # move recent marks cache out of the way...
  61 if [ -f "$GIT_DIR/$PFX-$SFX_MARKS" ] ; then
  62   mv "$GIT_DIR/$PFX-$SFX_MARKS" "$GIT_DIR/$PFX-$SFX_MARKS.old"
  63 else
  64   touch "$GIT_DIR/$PFX-$SFX_MARKS.old"
  65 fi
  66
  67 # ...to create a new merged one
  68 cat "$GIT_DIR/$PFX-$SFX_MARKS.old" "$GIT_DIR/$PFX-$SFX_MARKS.tmp" \
  69 | uniq > "$GIT_DIR/$PFX-$SFX_MARKS"
  70
  71 # cleanup
  72 rm -rf "$GIT_DIR/$PFX-$SFX_MARKS.old" "$GIT_DIR/$PFX-$SFX_MARKS.tmp"
  73
  74 # save SHA1s of current heads for incremental imports
  75 # and connectivity (plus sanity checking)
  76 for head in `git branch | sed 's#^..##'` ; do
  77   id="`git-rev-parse $head`"
  78   echo ":$head $id"
  79 done > "$GIT_DIR/$PFX-$SFX_HEADS"
  80
  81 # check diff with color:
  82 # ( for i in `find . -type f | grep -v '\.git'` ; do diff -u $i $REPO/$i ; done | cdiff ) | less -r