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>] [-M <branch_name>]"
  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         -M      Set the default branch name
  30 "
  31
  32 . "$(git --exec-path)/git-sh-setup"
  33 cd_to_toplevel
  34
  35 while case "$#" in 0) break ;; esac
  36 do
  37   case "$1" in
  38     -r|--r|--re|--rep|--repo)
  39       shift
  40       REPO="$1"
  41       ;;
  42     --q|--qu|--qui|--quie|--quiet)
  43       QUIET="--quiet"
  44       ;;
  45     -*)
  46       # pass any other options down to hg2git.py
  47       break
  48       ;;
  49     *)
  50       break
  51       ;;
  52   esac
  53   shift
  54 done
  55
  56 # for convenience: get default repo from state file
  57 if [ x"$REPO" = x -a -f "$GIT_DIR/$PFX-$SFX_STATE" ] ; then
  58   REPO="`egrep '^:repo ' "$GIT_DIR/$PFX-$SFX_STATE" | cut -d ' ' -f 2`"
  59   echo "Using last hg repository \"$REPO\""
  60 fi
  61
  62 # make sure we have a marks cache
  63 if [ ! -f "$GIT_DIR/$PFX-$SFX_MARKS" ] ; then
  64   touch "$GIT_DIR/$PFX-$SFX_MARKS"
  65 fi
  66
  67 GIT_DIR="$GIT_DIR" $PYTHON "$ROOT/hg-fast-export.py" \
  68   --repo "$REPO" \
  69   --marks "$GIT_DIR/$PFX-$SFX_MARKS" \
  70   --heads "$GIT_DIR/$PFX-$SFX_HEADS" \
  71   --status "$GIT_DIR/$PFX-$SFX_STATE" \
  72   "$@" \
  73 | git fast-import $QUIET --export-marks="$GIT_DIR/$PFX-$SFX_MARKS.tmp" \
  74 || die 'Git fast-import failed'
  75
  76 # move recent marks cache out of the way...
  77 if [ -f "$GIT_DIR/$PFX-$SFX_MARKS" ] ; then
  78   mv "$GIT_DIR/$PFX-$SFX_MARKS" "$GIT_DIR/$PFX-$SFX_MARKS.old"
  79 else
  80   touch "$GIT_DIR/$PFX-$SFX_MARKS.old"
  81 fi
  82
  83 # ...to create a new merged one
  84 cat "$GIT_DIR/$PFX-$SFX_MARKS.old" "$GIT_DIR/$PFX-$SFX_MARKS.tmp" \
  85 | uniq > "$GIT_DIR/$PFX-$SFX_MARKS"
  86
  87 # cleanup
  88 rm -rf "$GIT_DIR/$PFX-$SFX_MARKS.old" "$GIT_DIR/$PFX-$SFX_MARKS.tmp"
  89
  90 # save SHA1s of current heads for incremental imports
  91 # and connectivity (plus sanity checking)
  92 for head in `git branch | sed 's#^..##'` ; do
  93   id="`git rev-parse $head`"
  94   echo ":$head $id"
  95 done > "$GIT_DIR/$PFX-$SFX_HEADS"
  96
  97 # check diff with color:
  98 # ( for i in `find . -type f | grep -v '\.git'` ; do diff -u $i $REPO/$i ; done | cdiff ) | less -r