git-resolve-script

   1 #!/bin/sh
   2 #
   3 # Copyright (c) 2005 Linus Torvalds
   4 #
   5 # Resolve two trees.
   6 #
   7 head="$1"
   8 merge="$2"
   9 merge_repo="$3"
  10
  11 : ${GIT_DIR=.git}
  12 : ${GIT_OBJECT_DIRECTORY="${SHA1_FILE_DIRECTORY-"$GIT_DIR/objects"}"}
  13
  14 rm -f "$GIT_DIR"/MERGE_HEAD "$GIT_DIR"/ORIG_HEAD
  15 echo $head > "$GIT_DIR"/ORIG_HEAD
  16 echo $merge > "$GIT_DIR"/MERGE_HEAD
  17
  18 #
  19 # The remote name is just used for the message,
  20 # but we do want it.
  21 #
  22 if [ "$merge_repo" == "" ]; then
  23         echo "git-resolve-script <head> <remote> <merge-repo-name>"
  24         exit 1
  25 fi
  26
  27 common=$(git-merge-base $head $merge)
  28 if [ -z "$common" ]; then
  29         echo "Unable to find common commit between" $merge $head
  30         exit 1
  31 fi
  32
  33 if [ "$common" == "$merge" ]; then
  34         echo "Already up-to-date. Yeeah!"
  35         rm -f -- "$GIT_DIR/ORIG_HEAD" "$GIT_DIR/MERGE_HEAD"
  36         exit 0
  37 fi
  38 if [ "$common" == "$head" ]; then
  39         echo "Updating from $head to $merge."
  40         git-read-tree -u -m $head $merge || exit 1
  41         echo $merge > "$GIT_DIR"/HEAD
  42         git-diff-tree -p ORIG_HEAD HEAD | git-apply --stat
  43         rm -f -- "$GIT_DIR/ORIG_HEAD" "$GIT_DIR/MERGE_HEAD"
  44         exit 0
  45 fi
  46 echo "Trying to merge $merge into $head"
  47 git-read-tree -u -m $common $head $merge || exit 1
  48 merge_msg="Merge $merge_repo"
  49 result_tree=$(git-write-tree  2> /dev/null)
  50 if [ $? -ne 0 ]; then
  51         echo "Simple merge failed, trying Automatic merge"
  52         git-merge-cache -o git-merge-one-file-script -a
  53         if [ $? -ne 0 ]; then
  54                 echo "Automatic merge failed, fix up by hand"
  55                 exit 1
  56         fi
  57         result_tree=$(git-write-tree) || exit 1
  58 fi
  59 result_commit=$(echo "$merge_msg" | git-commit-tree $result_tree -p $head -p $merge)
  60 echo "Committed merge $result_commit"
  61 echo $result_commit > "$GIT_DIR"/HEAD
  62 git-diff-tree -p $head $result_commit | git-apply --stat
  63 rm -f -- "$GIT_DIR/ORIG_HEAD" "$GIT_DIR/MERGE_HEAD"