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 single=
   9 ranges=
  10 basedep=
  11
  12
  13 ## Parse options
  14
  15 while [ -n "$1" ]; do
  16         arg="$1"; shift
  17         case "$arg" in
  18         -d)
  19                 basedep="$1"; shift;;
  20         -p)
  21                 branch_prefix="$1"; shift;;
  22         -s)
  23                 single="$1"; shift;;
  24         -*)
  25                 echo "Usage: tg [...] import [-d BASE_BRANCH] {[-p PREFIX] RANGE...|-s NAME COMMIT}" >&2
  26                 exit 1;;
  27         *)
  28                 ranges="$ranges $arg";;
  29         esac
  30 done
  31
  32
  33 ## Make sure our tree is clean
  34
  35 git update-index --ignore-submodules --refresh || exit
  36 [ -z "$(git diff-index --cached --name-status -r --ignore-submodules HEAD --)" ] ||
  37         die "the index is not clean"
  38
  39
  40 ## Perform import
  41
  42 get_commit_msg()
  43 {
  44         commit="$1"
  45         headers=""
  46         ! header="$(git config topgit.to)" || headers="$headers%nTo: $header"
  47         ! header="$(git config topgit.cc)" || headers="$headers%nCc: $header"
  48         ! header="$(git config topgit.bcc)" || headers="$headers%nBcc: $header"
  49         git log -1 --pretty=format:"From: %an <%ae>$headers%nSubject: %s%n%n%b" "$commit"
  50 }
  51
  52 get_branch_name()
  53 {
  54         # nice sed script from git-format-patch.sh
  55         commit="$1"
  56         titleScript='
  57         s/[^-a-z.A-Z_0-9]/-/g
  58         s/\.\.\.*/\./g
  59         s/\.*$//
  60         s/--*/-/g
  61         s/^-//
  62         s/-$//
  63         q
  64 '
  65         git log -1 --pretty=format:"%s" "$commit" | sed -e "$titleScript"
  66 }
  67
  68 process_commit()
  69 {
  70         commit="$1"
  71         branch_name="$2"
  72         info "---- Importing $commit to $branch_name"
  73         tg create "$branch_name" $basedep
  74         basedep=
  75         git cherry-pick --no-commit "$commit"
  76         get_commit_msg "$commit" > .topmsg
  77         git add -f .topmsg .topdeps
  78         git commit -C "$commit"
  79         info "++++ Importing $commit finished"
  80 }
  81
  82 if [ -n "$single" ]; then
  83         process_commit $ranges "$single"
  84         exit
  85 fi
  86
  87 # nice arg verification stolen from git-format-patch.sh
  88 for revpair in $ranges
  89 do
  90         case "$revpair" in
  91         ?*..?*)
  92                 rev1=`expr "z$revpair" : 'z\(.*\)\.\.'`
  93                 rev2=`expr "z$revpair" : 'z.*\.\.\(.*\)'`
  94                 ;;
  95         *)
  96                 die "Unknow range spec $revpair"
  97                 ;;
  98         esac
  99         git rev-parse --verify "$rev1^0" >/dev/null 2>&1 ||
 100                 die "Not a valid rev $rev1 ($revpair)"
 101         git rev-parse --verify "$rev2^0" >/dev/null 2>&1 ||
 102                 die "Not a valid rev $rev2 ($revpair)"
 103         git cherry -v "$rev1" "$rev2" |
 104         while read sign rev comment
 105         do
 106                 case "$sign" in
 107                 '-')
 108                         info "Merged already: $comment"
 109                         ;;
 110                 *)
 111                         process_commit "$rev" "$branch_prefix$(get_branch_name "$rev")"
 112                         ;;
 113                 esac
 114         done
 115 done