git-merge-vim-runtime.sh

   1 #!/bin/sh
   2 #
   3 # by Markus Heidelberg, 2008
   4 # based on git-merge-one-file.sh from the git suite, which is
   5 #   Copyright (c) Linus Torvalds, 2005
   6 #
   7 # This is a wrapper around git-merge-one-file to handle the initial merge of
   8 # the current runtime files from the editor Vim into Vim's source tree. It's
   9 # called from git-merge-index with
  10 #
  11 #   $1 - original file SHA1 (or empty)   - Vim sources
  12 #   $2 - file in branch1 SHA1 (or empty) - Vim sources
  13 #   $3 - file in branch2 SHA1 (or empty) - Vim runtime
  14 #   $4 - pathname in repository
  15 #   $5 - original file mode (or empty)   - Vim sources
  16 #   $6 - file in branch1 mode (or empty) - Vim sources
  17 #   $7 - file in branch2 mode (or empty) - Vim runtime
  18 #
  19 # Since we use the same revision (HEAD of Vim sources) for the 'base' and 'our'
  20 # tree in git-read-tree, $1 is always equal to $2, therefore unchanged.
  21
  22 case "${1:-.}${2:-.}${3:-.}" in
  23 #
  24 # Deleted (not available) in branch2 (Vim runtime) and unchanged available in
  25 # the others (Vim sources).
  26 # Currently (Vim 7.2) affected are the files
  27 #   * outside of runtime/
  28 #   * in runtime/icons/
  29 #   * in runtime/ with the pattern *.info
  30 # because these are not available in the Vim runtime branch.
  31 #
  32 "$1$1.")
  33         # git-merge-one-file would delete the file, but we want to keep it in
  34         # our special case. Only print out the handled files below runtime/
  35         expr "$4" : 'runtime/.*' > /dev/null &&
  36                 echo "handled and kept by $(basename $0): $4"
  37         exec git update-index --add --cacheinfo "$6" "$2" "$4"
  38         ;;
  39
  40 #
  41 # All the other cases
  42 #
  43 # Added (only available) in branch2 (Vim runtime) and not available in the
  44 # others (Vim sources) -> ..$3
  45 # Or available (may be modified) in branch2 (Vim runtime) and unchanged
  46 # available in the others (Vim sources) -> $1$1$3
  47 #
  48 #"..$3" | "$1$1$3")
  49 *)
  50         # run the standard handler
  51         exec git merge-one-file "$1" "$2" "$3" "$4" "$5" "$6" "$7"
  52         ;;
  53 esac
  54 exit 1