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