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 $0`"
   7 REPO=""
   8 PFX="hg2git"
   9 SFX_MAPPING="mapping"
  10 SFX_MARKS="marks"
  11 SFX_HEADS="heads"
  12 SFX_STATE="state"
  13 QUIET=""
  14 PYTHON=${PYTHON:-python}
  15
  16 USAGE="[--quiet] [-r <repo>] [-m <max>] [-s] [-A <file>] [-M <branch_name>]"
  17 LONG_USAGE="Import hg repository <repo> up to either tip or <max>
  18 If <repo> is omitted, use last hg repository as obtained from state file,
  19 GIT_DIR/$PFX-$SFX_STATE by default.
  20
  21 Note: The argument order matters.
  22
  23 Options:
  24         -m      Maximum revision to import
  25         --quiet Passed to git-fast-import(1)
  26         -s      Enable parsing Signed-off-by lines
  27         -A      Read author map from file
  28                 (Same as in git-svnimport(1) and git-cvsimport(1))
  29         -r      Mercurial repository to import
  30         -M      Set the default branch name
  31 "
  32
  33 . "$(git --exec-path)/git-sh-setup"
  34 cd_to_toplevel
  35
  36 while case "$#" in 0) break ;; esac
  37 do
  38   case "$1" in
  39     -r|--r|--re|--rep|--repo)
  40       shift
  41       REPO="$1"
  42       ;;
  43     --q|--qu|--qui|--quie|--quiet)
  44       QUIET="--quiet"
  45       ;;
  46     -*)
  47       # pass any other options down to hg2git.py
  48       break
  49       ;;
  50     *)
  51       break
  52       ;;
  53   esac
  54   shift
  55 done
  56
  57 # for convenience: get default repo from state file
  58 if [ x"$REPO" = x -a -f "$GIT_DIR/$PFX-$SFX_STATE" ] ; then
  59   REPO="`egrep '^:repo ' "$GIT_DIR/$PFX-$SFX_STATE" | cut -d ' ' -f 2`"
  60   echo "Using last hg repository \"$REPO\""
  61 fi
  62
  63 # make sure we have a marks cache
  64 if [ ! -f "$GIT_DIR/$PFX-$SFX_MARKS" ] ; then
  65   touch "$GIT_DIR/$PFX-$SFX_MARKS"
  66 fi
  67
  68 GIT_DIR="$GIT_DIR" $PYTHON "$ROOT/hg-fast-export.py" \
  69   --repo "$REPO" \
  70   --marks "$GIT_DIR/$PFX-$SFX_MARKS" \
  71   --mapping "$GIT_DIR/$PFX-$SFX_MAPPING" \
  72   --heads "$GIT_DIR/$PFX-$SFX_HEADS" \
  73   --status "$GIT_DIR/$PFX-$SFX_STATE" \
  74   "$@" \
  75 | git fast-import $QUIET --export-marks="$GIT_DIR/$PFX-$SFX_MARKS.tmp"
  76
  77 # move recent marks cache out of the way...
  78 if [ -f "$GIT_DIR/$PFX-$SFX_MARKS" ] ; then
  79   mv "$GIT_DIR/$PFX-$SFX_MARKS" "$GIT_DIR/$PFX-$SFX_MARKS.old"
  80 else
  81   touch "$GIT_DIR/$PFX-$SFX_MARKS.old"
  82 fi
  83
  84 # ...to create a new merged one
  85 cat "$GIT_DIR/$PFX-$SFX_MARKS.old" "$GIT_DIR/$PFX-$SFX_MARKS.tmp" \
  86 | uniq > "$GIT_DIR/$PFX-$SFX_MARKS"
  87
  88 # cleanup
  89 rm -rf "$GIT_DIR/$PFX-$SFX_MARKS.old" "$GIT_DIR/$PFX-$SFX_MARKS.tmp"
  90
  91 # save SHA1s of current heads for incremental imports
  92 # and connectivity (plus sanity checking)
  93 for head in `git branch | sed 's#^..##'` ; do
  94   id="`git rev-parse $head`"
  95   echo ":$head $id"
  96 done > "$GIT_DIR/$PFX-$SFX_HEADS"
  97
  98 # check diff with color:
  99 # ( for i in `find . -type f | grep -v '\.git'` ; do diff -u $i $REPO/$i ; done | cdiff ) | less -r