mergetools/meld

   1 diff_cmd () {
   2         "$merge_tool_path" "$LOCAL" "$REMOTE"
   3 }
   4
   5 diff_cmd_help () {
   6         echo "Use Meld (requires a graphical session)"
   7 }
   8
   9 merge_cmd () {
  10         check_meld_for_features
  11
  12         option_auto_merge=
  13         if test "$meld_use_auto_merge_option" = true
  14         then
  15                 option_auto_merge="--auto-merge"
  16         fi
  17
  18         if test "$meld_has_output_option" = true
  19         then
  20                 "$merge_tool_path" $option_auto_merge --output="$MERGED" \
  21                         "$LOCAL" "$BASE" "$REMOTE"
  22         else
  23                 "$merge_tool_path" $option_auto_merge "$LOCAL" "$MERGED" "$REMOTE"
  24         fi
  25 }
  26
  27 merge_cmd_help () {
  28         echo "Use Meld (requires a graphical session) with optional \`auto merge\` (see \`git help mergetool\`'s \`CONFIGURATION\` section)"
  29 }
  30
  31 # Get meld help message
  32 init_meld_help_msg () {
  33         if test -z "$meld_help_msg"
  34         then
  35                 meld_path="$(git config mergetool.meld.path || echo meld)"
  36                 meld_help_msg=$("$meld_path" --help 2>&1)
  37         fi
  38 }
  39
  40 # Check the features and set flags
  41 check_meld_for_features () {
  42         # Check whether we should use 'meld --output <file>'
  43         if test -z "$meld_has_output_option"
  44         then
  45                 meld_has_output_option=$(git config --bool mergetool.meld.hasOutput)
  46                 case "$meld_has_output_option" in
  47                 true | false)
  48                         : use configured value
  49                         ;;
  50                 *)
  51                         : empty or invalid configured value, detecting "--output" automatically
  52                         init_meld_help_msg
  53
  54                         case "$meld_help_msg" in
  55                         *"--output="* | *'[OPTION...]'*)
  56                                 # All version that has [OPTION...] supports --output
  57                                 meld_has_output_option=true
  58                                 ;;
  59                         *)
  60                                 meld_has_output_option=false
  61                                 ;;
  62                         esac
  63                         ;;
  64                 esac
  65         fi
  66         # Check whether we should use 'meld --auto-merge ...'
  67         if test -z "$meld_use_auto_merge_option"
  68         then
  69                 meld_use_auto_merge_option=$(
  70                         git config --bool-or-str mergetool.meld.useAutoMerge
  71                 )
  72                 case "$meld_use_auto_merge_option" in
  73                 true | false)
  74                         : use well formatted boolean value
  75                         ;;
  76                 auto)
  77                         # testing the "--auto-merge" option only if config is "auto"
  78                         init_meld_help_msg
  79
  80                         case "$meld_help_msg" in
  81                         *"--auto-merge"* | *'[OPTION...]'*)
  82                                 meld_use_auto_merge_option=true
  83                                 ;;
  84                         *)
  85                                 meld_use_auto_merge_option=false
  86                                 ;;
  87                         esac
  88                         ;;
  89                 "")
  90                         meld_use_auto_merge_option=false
  91                         ;;
  92                 *)
  93                         die "unknown mergetool.meld.useAutoMerge: $meld_use_auto_merge_option"
  94                         ;;
  95                 esac
  96         fi
  97 }