hg-fast-export.sh

   1 #!/bin/sh
   2
   3 # Copyright (c) 2007, 2008 Rocco Rutte <pdmef@gmx.net> and others.
   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 <name>] [-o <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 (default to 'master')
  31         -o      Use <name> as branch namespace to track upstream (eg 'origin')
  32 "
  33
  34 . "$(git --exec-path)/git-sh-setup"
  35 cd_to_toplevel
  36
  37 while case "$#" in 0) break ;; esac
  38 do
  39   case "$1" in
  40     -r|--r|--re|--rep|--repo)
  41       shift
  42       REPO="$1"
  43       ;;
  44     --q|--qu|--qui|--quie|--quiet)
  45       QUIET="--quiet"
  46       ;;
  47     -*)
  48       # pass any other options down to hg2git.py
  49       break
  50       ;;
  51     *)
  52       break
  53       ;;
  54   esac
  55   shift
  56 done
  57
  58 # for convenience: get default repo from state file
  59 if [ x"$REPO" = x -a -f "$GIT_DIR/$PFX-$SFX_STATE" ] ; then
  60   REPO="`egrep '^:repo ' "$GIT_DIR/$PFX-$SFX_STATE" | cut -d ' ' -f 2`"
  61   echo "Using last hg repository \"$REPO\""
  62 fi
  63
  64 # make sure we have a marks cache
  65 if [ ! -f "$GIT_DIR/$PFX-$SFX_MARKS" ] ; then
  66   touch "$GIT_DIR/$PFX-$SFX_MARKS"
  67 fi
  68
  69 GIT_DIR="$GIT_DIR" $PYTHON "$ROOT/hg-fast-export.py" \
  70   --repo "$REPO" \
  71   --marks "$GIT_DIR/$PFX-$SFX_MARKS" \
  72   --mapping "$GIT_DIR/$PFX-$SFX_MAPPING" \
  73   --heads "$GIT_DIR/$PFX-$SFX_HEADS" \
  74   --status "$GIT_DIR/$PFX-$SFX_STATE" \
  75   "$@" \
  76 | git fast-import $QUIET --export-marks="$GIT_DIR/$PFX-$SFX_MARKS.tmp"
  77
  78 # move recent marks cache out of the way...
  79 if [ -f "$GIT_DIR/$PFX-$SFX_MARKS" ] ; then
  80   mv "$GIT_DIR/$PFX-$SFX_MARKS" "$GIT_DIR/$PFX-$SFX_MARKS.old"
  81 else
  82   touch "$GIT_DIR/$PFX-$SFX_MARKS.old"
  83 fi
  84
  85 # ...to create a new merged one
  86 cat "$GIT_DIR/$PFX-$SFX_MARKS.old" "$GIT_DIR/$PFX-$SFX_MARKS.tmp" \
  87 | uniq > "$GIT_DIR/$PFX-$SFX_MARKS"
  88
  89 # cleanup
  90 rm -rf "$GIT_DIR/$PFX-$SFX_MARKS.old" "$GIT_DIR/$PFX-$SFX_MARKS.tmp"
  91
  92 # save SHA1s of current heads for incremental imports
  93 # and connectivity (plus sanity checking)
  94 for head in `git branch | sed 's#^..##'` ; do
  95   id="`git rev-parse $head`"
  96   echo ":$head $id"
  97 done > "$GIT_DIR/$PFX-$SFX_HEADS"
  98
  99 # check diff with color:
 100 # ( for i in `find . -type f | grep -v '\.git'` ; do diff -u $i $REPO/$i ; done | cdiff ) | less -r