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="$1"
  45         git log -1 --pretty=format:"From: %an <%ae>%n%n%s%n%n%b" "$commit"
  46 }
  47
  48 get_branch_name()
  49 {
  50         # nice sed script from git-format-patch.sh
  51         commit="$1"
  52         titleScript='
  53         s/[^-a-z.A-Z_0-9]/-/g
  54         s/\.\.\.*/\./g
  55         s/\.*$//
  56         s/--*/-/g
  57         s/^-//
  58         s/-$//
  59         q
  60 '
  61         git log -1 --pretty=format:"%s" "$commit" | sed -e "$titleScript"
  62 }
  63
  64 process_commit()
  65 {
  66         commit="$1"
  67         branch_name="$2"
  68         info "---- Importing $commit to $branch_name"
  69         tg create "$branch_name" $basedep
  70         basedep=
  71         git cherry-pick --no-commit "$commit"
  72         get_commit_msg "$commit" > .topmsg
  73         git add -f .topmsg .topdeps
  74         git commit -C "$commit"
  75         info "++++ Importing $commit finished"
  76 }
  77
  78 if [ -n "$single" ]; then
  79         process_commit "$ranges" "$single"
  80         exit
  81 fi
  82
  83 # nice arg verification stolen from git-format-patch.sh
  84 for revpair in $ranges
  85 do
  86         case "$revpair" in
  87         ?*..?*)
  88                 rev1=`expr "z$revpair" : 'z\(.*\)\.\.'`
  89                 rev2=`expr "z$revpair" : 'z.*\.\.\(.*\)'`
  90                 ;;
  91         *)
  92                 die "Unknow range spec $revpair"
  93                 ;;
  94         esac
  95         git rev-parse --verify "$rev1^0" >/dev/null 2>&1 ||
  96                 die "Not a valid rev $rev1 ($revpair)"
  97         git rev-parse --verify "$rev2^0" >/dev/null 2>&1 ||
  98                 die "Not a valid rev $rev2 ($revpair)"
  99         git cherry -v "$rev1" "$rev2" |
 100         while read sign rev comment
 101         do
 102                 case "$sign" in
 103                 '-')
 104                         info "Merged already: $comment"
 105                         ;;
 106                 *)
 107                         process_commit "$rev" "$branch_prefix$(get_branch_name "$rev")"
 108                         ;;
 109                 esac
 110         done
 111 done