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 ranges=
   8
   9
  10 ## Parse options
  11
  12 while [ -n "$1" ]; do
  13         arg="$1"; shift
  14         case "$arg" in
  15         -*)
  16                 echo "Usage: tg [...] import RANGE..." >&2
  17                 exit 1;;
  18         *)
  19                 ranges="$ranges $arg";;
  20         esac
  21 done
  22
  23
  24 get_commit_msg()
  25 {
  26         commit="$1"
  27         git log -1 --pretty=format:"From: %an <%ae>%n%n%s%n%n%b" "$commit"
  28 }
  29
  30 get_branch_name()
  31 {
  32         # nice sed script from git-format-patch.sh
  33         commit="$1"
  34         titleScript='
  35         s/[^-a-z.A-Z_0-9]/-/g
  36         s/\.\.\.*/\./g
  37         s/\.*$//
  38         s/--*/-/g
  39         s/^-//
  40         s/-$//
  41         q
  42 '
  43         git log -1 --pretty=format:"%s" "$commit" | sed -e "$titleScript"
  44 }
  45
  46 process_commit()
  47 {
  48         commit="$1"
  49         branch_name=$(get_branch_name "$commit")
  50         echo "Importing $commit to $branch_name"
  51         tg create tp/"$branch_name"
  52         git read-tree "$commit"
  53         get_commit_msg "$commit" > .topmsg
  54         git add -f .topmsg .topdeps
  55         git commit -C "$commit"
  56 }
  57
  58 # nice arg verification stolen from git-format-patch.sh
  59 for revpair in $ranges
  60 do
  61         case "$revpair" in
  62         ?*..?*)
  63                 rev1=`expr "z$revpair" : 'z\(.*\)\.\.'`
  64                 rev2=`expr "z$revpair" : 'z.*\.\.\(.*\)'`
  65                 ;;
  66         *)
  67                 die "Unknow range spec $revpair"
  68                 ;;
  69         esac
  70         git rev-parse --verify "$rev1^0" >/dev/null 2>&1 ||
  71                 die "Not a valid rev $rev1 ($revpair)"
  72         git rev-parse --verify "$rev2^0" >/dev/null 2>&1 ||
  73                 die "Not a valid rev $rev2 ($revpair)"
  74         git cherry -v "$rev1" "$rev2" |
  75         while read sign rev comment
  76         do
  77                 case "$sign" in
  78                 '-')
  79                         info "Merged already: $comment"
  80                         ;;
  81                 *)
  82                         process_commit "$rev"
  83                         ;;
  84                 esac
  85         done
  86 done