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