2 # git-difftool--helper is a GIT_EXTERNAL_DIFF-compatible diff tool launcher.
3 # This script is typically launched by using the 'git difftool'
6 # Copyright (c) 2009-2010 David Aguilar
11 # difftool.prompt controls the default prompt/no-prompt behavior
12 # and is overridden with $GIT_DIFFTOOL*_PROMPT.
14 prompt=$(git config --bool difftool.prompt || echo true)
15 if test "$prompt" = true; then
16 test -z "$GIT_DIFFTOOL_NO_PROMPT"
18 test -n "$GIT_DIFFTOOL_PROMPT"
22 launch_merge_tool () {
23 # Merged is the filename as it appears in the work tree
24 # Local is the contents of a/filename
25 # Remote is the contents of b/filename
26 # Custom merge tool commands might use $BASE so we provide it
32 # $LOCAL and $REMOTE are temporary files so prompt
33 # the user with the real $MERGED name before launching $merge_tool.
34 if should_prompt; then
35 printf "\nViewing: '$MERGED'\n"
36 printf "Hit return to launch '%s': " "$merge_tool"
40 run_merge_tool "$merge_tool"
43 # GIT_DIFF_TOOL indicates that --tool=... was specified
44 if test -n "$GIT_DIFF_TOOL"; then
45 merge_tool="$GIT_DIFF_TOOL"
47 merge_tool="$(get_merge_tool)" || exit
50 # Launch the merge tool on each path provided by 'git diff'
53 launch_merge_tool "$1" "$2" "$5"