hg-fast-export.sh

   1 #!/bin/sh
   2
   3 # Copyright (c) 2007 Rocco Rutte <pdmef@gmx.net>
   4 # License: MIT <http://www.opensource.org/licenses/mit-license.php>
   5
   6 ROOT="`dirname $0`"
   7 REPO=""
   8 PFX="hg2git"
   9 SFX_MARKS="marks"
  10 SFX_HEADS="heads"
  11 SFX_STATE="state"
  12 QUIET=""
  13 PYTHON=${PYTHON:python}
  14
  15 USAGE="[--quiet] [-r <repo>] [-m <max>] [-s] [-A <file>]"
  16 LONG_USAGE="Import hg repository <repo> up to either tip or <max>
  17 If <repo> is omitted, use last hg repository as obtained from state file,
  18 GIT_DIR/$PFX-$SFX_STATE by default.
  19
  20 Note: The argument order matters.
  21
  22 Options:
  23         -m      Maximum revision to import
  24         --quiet Passed to git-fast-import(1)
  25         -s      Enable parsing Signed-off-by lines
  26         -A      Read author map from file
  27                 (Same as in git-svnimport(1) and git-cvsimport(1))
  28         -r      Mercurial repository to import
  29 "
  30
  31 . git-sh-setup
  32 cd_to_toplevel
  33
  34 while case "$#" in 0) break ;; esac
  35 do
  36   case "$1" in
  37     -r|--r|--re|--rep|--repo)
  38       shift
  39       REPO="$1"
  40       ;;
  41     --q|--qu|--qui|--quie|--quiet)
  42       QUIET="--quiet"
  43       ;;
  44     -*)
  45       # pass any other options down to hg2git.py
  46       break
  47       ;;
  48     *)
  49       break
  50       ;;
  51   esac
  52   shift
  53 done
  54
  55 # for convenience: get default repo from state file
  56 if [ x"$REPO" = x -a -f "$GIT_DIR/$PFX-$SFX_STATE" ] ; then
  57   REPO="`egrep '^:repo ' "$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-fast-export.py" \
  67   --repo "$REPO" \
  68   --marks "$GIT_DIR/$PFX-$SFX_MARKS" \
  69   --heads "$GIT_DIR/$PFX-$SFX_HEADS" \
  70   --status "$GIT_DIR/$PFX-$SFX_STATE" \
  71   "$@" \
  72 | git-fast-import $QUIET --export-marks="$GIT_DIR/$PFX-$SFX_MARKS.tmp" \
  73 || die 'Git fast-import failed'
  74
  75 # move recent marks cache out of the way...
  76 if [ -f "$GIT_DIR/$PFX-$SFX_MARKS" ] ; then
  77   mv "$GIT_DIR/$PFX-$SFX_MARKS" "$GIT_DIR/$PFX-$SFX_MARKS.old"
  78 else
  79   touch "$GIT_DIR/$PFX-$SFX_MARKS.old"
  80 fi
  81
  82 # ...to create a new merged one
  83 cat "$GIT_DIR/$PFX-$SFX_MARKS.old" "$GIT_DIR/$PFX-$SFX_MARKS.tmp" \
  84 | uniq > "$GIT_DIR/$PFX-$SFX_MARKS"
  85
  86 # cleanup
  87 rm -rf "$GIT_DIR/$PFX-$SFX_MARKS.old" "$GIT_DIR/$PFX-$SFX_MARKS.tmp"
  88
  89 # save SHA1s of current heads for incremental imports
  90 # and connectivity (plus sanity checking)
  91 for head in `git branch | sed 's#^..##'` ; do
  92   id="`git-rev-parse $head`"
  93   echo ":$head $id"
  94 done > "$GIT_DIR/$PFX-$SFX_HEADS"
  95
  96 # check diff with color:
  97 # ( for i in `find . -type f | grep -v '\.git'` ; do diff -u $i $REPO/$i ; done | cdiff ) | less -r