tg-import.sh

   1 #!/bin/sh
   2 # TopGit - A different patch queue manager
   3 # (c) Petr Baudis <pasky@suse.cz>  2008
   4 # (c) Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>  2008
   5 # GPLv2
   6
   7 branch_prefix=t/
   8 ranges=
   9
  10
  11 ## Parse options
  12
  13 while [ -n "$1" ]; do
  14         arg="$1"; shift
  15         case "$arg" in
  16         -p)
  17                 branch_prefix="$1"; shift;;
  18         -*)
  19                 echo "Usage: tg [...] import [-p PREFIX] RANGE..." >&2
  20                 exit 1;;
  21         *)
  22                 ranges="$ranges $arg";;
  23         esac
  24 done
  25
  26
  27 ## Make sure our tree is clean
  28
  29 git update-index --ignore-submodules --refresh || exit
  30 [ -z "$(git diff-index --cached --name-status -r --ignore-submodules HEAD --)" ] ||
  31         die "the index is not clean"
  32
  33
  34 ## Perform import
  35
  36 get_commit_msg()
  37 {
  38         commit="$1"
  39         git log -1 --pretty=format:"From: %an <%ae>%n%n%s%n%n%b" "$commit"
  40 }
  41
  42 get_branch_name()
  43 {
  44         # nice sed script from git-format-patch.sh
  45         commit="$1"
  46         titleScript='
  47         s/[^-a-z.A-Z_0-9]/-/g
  48         s/\.\.\.*/\./g
  49         s/\.*$//
  50         s/--*/-/g
  51         s/^-//
  52         s/-$//
  53         q
  54 '
  55         git log -1 --pretty=format:"%s" "$commit" | sed -e "$titleScript"
  56 }
  57
  58 process_commit()
  59 {
  60         commit="$1"
  61         branch_name=$(get_branch_name "$commit")
  62         info "---- Importing $commit to $branch_prefix$branch_name"
  63         tg create "$branch_prefix""$branch_name"
  64         git read-tree -u -m "$commit"
  65         get_commit_msg "$commit" > .topmsg
  66         git add -f .topmsg .topdeps
  67         git commit -C "$commit"
  68         info "++++ Importing $commit finished"
  69 }
  70
  71 # nice arg verification stolen from git-format-patch.sh
  72 for revpair in $ranges
  73 do
  74         case "$revpair" in
  75         ?*..?*)
  76                 rev1=`expr "z$revpair" : 'z\(.*\)\.\.'`
  77                 rev2=`expr "z$revpair" : 'z.*\.\.\(.*\)'`
  78                 ;;
  79         *)
  80                 die "Unknow range spec $revpair"
  81                 ;;
  82         esac
  83         git rev-parse --verify "$rev1^0" >/dev/null 2>&1 ||
  84                 die "Not a valid rev $rev1 ($revpair)"
  85         git rev-parse --verify "$rev2^0" >/dev/null 2>&1 ||
  86                 die "Not a valid rev $rev2 ($revpair)"
  87         git cherry -v "$rev1" "$rev2" |
  88         while read sign rev comment
  89         do
  90                 case "$sign" in
  91                 '-')
  92                         info "Merged already: $comment"
  93                         ;;
  94                 *)
  95                         process_commit "$rev"
  96                         ;;
  97                 esac
  98         done
  99 done