hg2git.sh

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