guilt-import-commit

   1 #!/bin/sh
   2 #
   3 # Copyright (c) Josef "Jeff" Sipek, 2007-2013
   4 #
   5
   6 USAGE="[<hash> | <since>..[<until>] | ..<until>]"
   7 if [ -z "$GUILT_VERSION" ]; then
   8         echo "Invoking `basename "$0"` directly is no longer supported." >&2
   9         exit 1
  10 fi
  11
  12 _main() {
  13
  14 if [ $# -ne 1 ] || [ -z "$1" ]; then
  15         die "You must specify a range of commits"
  16 fi
  17
  18 rhash=`munge_hash_range $1`
  19
  20 # make sure that there are no unapplied changes
  21 if ! must_commit_first; then
  22         die "Uncommited changes detected. Refresh first."
  23 fi
  24
  25 disp "About to begin conversion..." >&2
  26 disp "Current head: `git rev-parse \`git_branch\``" >&2
  27
  28 for rev in `git rev-list $rhash`; do
  29         s=`git log --no-decorate --pretty=oneline -1 $rev | cut -c 42-`
  30
  31         # Try to convert the first line of the commit message to a
  32         # valid patch name.
  33         fname=`printf %s "$s" | sed -e "s/&/and/g" -e "s/[ :]/_/g" -e "s,[/\\],-,g" \
  34                         -e "s/['\\[{}<>(),]//g" -e 's/]//g' -e 's/\*/-/g' \
  35                         -e 's/\?/-/g' -e 's/\.\.\.*/./g' -e 's/^\.//' \
  36                         -e 's/\.patch$//' -e 's/\.$//' | tr A-Z a-z`
  37
  38         if [ `expr length "$fname"` -gt 80 ] ; then
  39                 # Limit the patch length to about 80 chars.  While this is
  40                 # arbitrary, we have to have a limit to avoid trying to
  41                 # create filenames that are too long for the filesystem to
  42                 # handle.
  43                 fname=`expr substr "$fname" 1 80`
  44         fi
  45
  46         if ! valid_patchname "$fname"; then
  47                 # Try harder to make it a legal commit name by
  48                 # removing all but a few safe characters.
  49                 fname=`echo $fname|tr -d -c _a-zA-Z0-9---/\\n`
  50         fi
  51         if ! valid_patchname "$fname"; then
  52                 # If we failed to derive a legal patch name, use the
  53                 # name "x".  (If this happens, we likely have to
  54                 # append a suffix to make the name unique.)
  55                 fname=x
  56         fi
  57
  58         disp "Converting `echo $rev | cut -c 1-8` as $fname"
  59
  60         mangle_prefix=1
  61         fname_base=$fname
  62         while [ -f "$GUILT_DIR/$branch/$fname.patch" ]; do
  63                 fname="$fname_base-$mangle_prefix"
  64                 mangle_prefix=`expr $mangle_prefix + 1`
  65                 disp "Patch under that name exists...trying '$fname'"
  66         done
  67         fname="$fname".patch
  68
  69         (
  70                 do_make_header $rev
  71                 echo ""
  72                 git diff --binary $rev^..$rev
  73         ) > "$GUILT_DIR/$branch/$fname"
  74
  75         # FIXME: grab the GIT_AUTHOR_DATE from the commit object and set the
  76         # timestamp on the patch
  77
  78         # insert the patch name into the series file
  79         series_insert_patch $fname
  80
  81         # Only reset if the commit was on this branch
  82         if head_check $rev 2> /dev/null; then
  83                 # BEWARE: "git reset" ahead! Is there a way to verify that
  84                 # we really created a patch? - We don't want to lose any
  85                 # history.
  86                 git reset --hard $rev^ > /dev/null
  87         elif [ -z "$warned" ]; then
  88                 disp "Warning: commit $rev is not the HEAD...preserving commit" >&2
  89                 disp "Warning: (this message is displayed only once)" >&2
  90                 warned=t
  91         fi
  92 done
  93
  94 disp "Done." >&2
  95 disp "Current head: `git rev-parse \`git_branch\``" >&2
  96
  97 }