}
translate_merge_tool_path () {
- case "$1" in
- araxis)
- echo compare
- ;;
- bc3)
- echo bcompare
- ;;
- emerge)
- echo emacs
- ;;
- gvimdiff|gvimdiff2)
- echo gvim
- ;;
- vimdiff|vimdiff2)
- echo vim
- ;;
- *)
- echo "$1"
- ;;
- esac
+ echo "$1"
}
check_unchanged () {
do
echo "$MERGED seems unchanged."
printf "Was the merge successful? [y/n] "
- read answer
+ read answer || return 1
case "$answer" in
y*|Y*) status=0; break ;;
n*|N*) status=1; break ;;
fi
}
+valid_tool_config () {
+ if test -n "$(get_merge_tool_cmd "$1")"
+ then
+ return 0
+ else
+ return 1
+ fi
+}
+
valid_tool () {
+ setup_tool "$1" || valid_tool_config "$1"
+}
+
+setup_tool () {
case "$1" in
- araxis | bc3 | diffuse | ecmerge | emerge | gvimdiff | gvimdiff2 | \
- kdiff3 | meld | opendiff | p4merge | tkdiff | vimdiff | vimdiff2 | xxdiff)
- ;; # happy
- kompare)
- if ! diff_mode
- then
- return 1
- fi
- ;;
- tortoisemerge)
- if ! merge_mode
- then
- return 1
- fi
+ vim*|gvim*)
+ tool=vim
;;
*)
- if test -z "$(get_merge_tool_cmd "$1")"
- then
- return 1
- fi
+ tool="$1"
;;
esac
+ mergetools="$(git --exec-path)/mergetools"
+
+ # Load the default definitions
+ . "$mergetools/defaults"
+ if ! test -f "$mergetools/$tool"
+ then
+ return 1
+ fi
+
+ # Load the redefined functions
+ . "$mergetools/$tool"
+
+ if merge_mode && ! can_merge
+ then
+ echo "error: '$tool' can not be used to resolve merges" >&2
+ exit 1
+ elif diff_mode && ! can_diff
+ then
+ echo "error: '$tool' can only be used to resolve merges" >&2
+ exit 1
+ fi
+ return 0
}
get_merge_tool_cmd () {
# Prints the custom command for a merge tool
- if test -n "$1"
- then
- merge_tool="$1"
- else
- merge_tool="$(get_merge_tool)"
- fi
+ merge_tool="$1"
if diff_mode
then
echo "$(git config difftool.$merge_tool.cmd ||
fi
}
+# Entry point for running tools
run_merge_tool () {
# If GIT_PREFIX is empty then we cannot use it in tools
# that expect to be able to chdir() to its value.
base_present="$2"
status=0
- case "$1" in
- araxis)
- if merge_mode
- then
- touch "$BACKUP"
- if $base_present
- then
- "$merge_tool_path" -wait -merge -3 -a1 \
- "$BASE" "$LOCAL" "$REMOTE" "$MERGED" \
- >/dev/null 2>&1
- else
- "$merge_tool_path" -wait -2 \
- "$LOCAL" "$REMOTE" "$MERGED" \
- >/dev/null 2>&1
- fi
- check_unchanged
- else
- "$merge_tool_path" -wait -2 "$LOCAL" "$REMOTE" \
- >/dev/null 2>&1
- fi
- ;;
- bc3)
- if merge_mode
- then
- touch "$BACKUP"
- if $base_present
- then
- "$merge_tool_path" "$LOCAL" "$REMOTE" "$BASE" \
- -mergeoutput="$MERGED"
- else
- "$merge_tool_path" "$LOCAL" "$REMOTE" \
- -mergeoutput="$MERGED"
- fi
- check_unchanged
- else
- "$merge_tool_path" "$LOCAL" "$REMOTE"
- fi
- ;;
- diffuse)
- if merge_mode
- then
- touch "$BACKUP"
- if $base_present
- then
- "$merge_tool_path" \
- "$LOCAL" "$MERGED" "$REMOTE" \
- "$BASE" | cat
- else
- "$merge_tool_path" \
- "$LOCAL" "$MERGED" "$REMOTE" | cat
- fi
- check_unchanged
- else
- "$merge_tool_path" "$LOCAL" "$REMOTE" | cat
- fi
- ;;
- ecmerge)
- if merge_mode
- then
- touch "$BACKUP"
- if $base_present
- then
- "$merge_tool_path" "$BASE" "$LOCAL" "$REMOTE" \
- --default --mode=merge3 --to="$MERGED"
- else
- "$merge_tool_path" "$LOCAL" "$REMOTE" \
- --default --mode=merge2 --to="$MERGED"
- fi
- check_unchanged
- else
- "$merge_tool_path" --default --mode=diff2 \
- "$LOCAL" "$REMOTE"
- fi
- ;;
- emerge)
- if merge_mode
- then
- if $base_present
- then
- "$merge_tool_path" \
- -f emerge-files-with-ancestor-command \
- "$LOCAL" "$REMOTE" "$BASE" \
- "$(basename "$MERGED")"
- else
- "$merge_tool_path" \
- -f emerge-files-command \
- "$LOCAL" "$REMOTE" \
- "$(basename "$MERGED")"
- fi
- status=$?
- else
- "$merge_tool_path" -f emerge-files-command \
- "$LOCAL" "$REMOTE"
- fi
- ;;
- gvimdiff|vimdiff)
- if merge_mode
- then
- touch "$BACKUP"
- if $base_present
- then
- "$merge_tool_path" -f -d -c "wincmd J" \
- "$MERGED" "$LOCAL" "$BASE" "$REMOTE"
- else
- "$merge_tool_path" -f -d -c "wincmd l" \
- "$LOCAL" "$MERGED" "$REMOTE"
- fi
- check_unchanged
- else
- "$merge_tool_path" -R -f -d -c "wincmd l" \
- -c 'cd $GIT_PREFIX' \
- "$LOCAL" "$REMOTE"
- fi
- ;;
- gvimdiff2|vimdiff2)
- if merge_mode
- then
- touch "$BACKUP"
- "$merge_tool_path" -f -d -c "wincmd l" \
- "$LOCAL" "$MERGED" "$REMOTE"
- check_unchanged
- else
- "$merge_tool_path" -R -f -d -c "wincmd l" \
- -c 'cd $GIT_PREFIX' \
- "$LOCAL" "$REMOTE"
- fi
- ;;
- kdiff3)
- if merge_mode
- then
- if $base_present
- then
- "$merge_tool_path" --auto \
- --L1 "$MERGED (Base)" \
- --L2 "$MERGED (Local)" \
- --L3 "$MERGED (Remote)" \
- -o "$MERGED" \
- "$BASE" "$LOCAL" "$REMOTE" \
- >/dev/null 2>&1
- else
- "$merge_tool_path" --auto \
- --L1 "$MERGED (Local)" \
- --L2 "$MERGED (Remote)" \
- -o "$MERGED" \
- "$LOCAL" "$REMOTE" \
- >/dev/null 2>&1
- fi
- status=$?
- else
- "$merge_tool_path" --auto \
- --L1 "$MERGED (A)" \
- --L2 "$MERGED (B)" "$LOCAL" "$REMOTE" \
- >/dev/null 2>&1
- fi
- ;;
- kompare)
- "$merge_tool_path" "$LOCAL" "$REMOTE"
- ;;
- meld)
- if merge_mode
- then
- touch "$BACKUP"
- "$merge_tool_path" "$LOCAL" "$MERGED" "$REMOTE"
- check_unchanged
- else
- "$merge_tool_path" "$LOCAL" "$REMOTE"
- fi
- ;;
- opendiff)
- if merge_mode
- then
- touch "$BACKUP"
- if $base_present
- then
- "$merge_tool_path" "$LOCAL" "$REMOTE" \
- -ancestor "$BASE" \
- -merge "$MERGED" | cat
- else
- "$merge_tool_path" "$LOCAL" "$REMOTE" \
- -merge "$MERGED" | cat
- fi
- check_unchanged
- else
- "$merge_tool_path" "$LOCAL" "$REMOTE" | cat
- fi
- ;;
- p4merge)
- if merge_mode
+ # Bring tool-specific functions into scope
+ setup_tool "$1"
+
+ if merge_mode
+ then
+ run_merge_cmd "$1"
+ else
+ run_diff_cmd "$1"
+ fi
+ return $status
+}
+
+# Run a either a configured or built-in diff tool
+run_diff_cmd () {
+ merge_tool_cmd="$(get_merge_tool_cmd "$1")"
+ if test -n "$merge_tool_cmd"
+ then
+ ( eval $merge_tool_cmd )
+ status=$?
+ return $status
+ else
+ diff_cmd "$1"
+ fi
+}
+
+# Run a either a configured or built-in merge tool
+run_merge_cmd () {
+ merge_tool_cmd="$(get_merge_tool_cmd "$1")"
+ if test -n "$merge_tool_cmd"
+ then
+ trust_exit_code="$(git config --bool \
+ mergetool."$1".trustExitCode || echo false)"
+ if test "$trust_exit_code" = "false"
then
touch "$BACKUP"
- $base_present || >"$BASE"
- "$merge_tool_path" "$BASE" "$LOCAL" "$REMOTE" "$MERGED"
- check_unchanged
- else
- "$merge_tool_path" "$LOCAL" "$REMOTE"
- fi
- ;;
- tkdiff)
- if merge_mode
- then
- if $base_present
- then
- "$merge_tool_path" -a "$BASE" \
- -o "$MERGED" "$LOCAL" "$REMOTE"
- else
- "$merge_tool_path" \
- -o "$MERGED" "$LOCAL" "$REMOTE"
- fi
+ ( eval $merge_tool_cmd )
status=$?
- else
- "$merge_tool_path" "$LOCAL" "$REMOTE"
- fi
- ;;
- tortoisemerge)
- if $base_present
- then
- touch "$BACKUP"
- "$merge_tool_path" \
- -base:"$BASE" -mine:"$LOCAL" \
- -theirs:"$REMOTE" -merged:"$MERGED"
check_unchanged
- else
- echo "TortoiseMerge cannot be used without a base" 1>&2
- status=1
- fi
- ;;
- xxdiff)
- if merge_mode
- then
- touch "$BACKUP"
- if $base_present
- then
- "$merge_tool_path" -X --show-merged-pane \
- -R 'Accel.SaveAsMerged: "Ctrl-S"' \
- -R 'Accel.Search: "Ctrl+F"' \
- -R 'Accel.SearchForward: "Ctrl-G"' \
- --merged-file "$MERGED" \
- "$LOCAL" "$BASE" "$REMOTE"
- else
- "$merge_tool_path" -X $extra \
- -R 'Accel.SaveAsMerged: "Ctrl-S"' \
- -R 'Accel.Search: "Ctrl+F"' \
- -R 'Accel.SearchForward: "Ctrl-G"' \
- --merged-file "$MERGED" \
- "$LOCAL" "$REMOTE"
- fi
- check_unchanged
- else
- "$merge_tool_path" \
- -R 'Accel.Search: "Ctrl+F"' \
- -R 'Accel.SearchForward: "Ctrl-G"' \
- "$LOCAL" "$REMOTE"
- fi
- ;;
- *)
- merge_tool_cmd="$(get_merge_tool_cmd "$1")"
- if test -z "$merge_tool_cmd"
- then
- if merge_mode
- then
- status=1
- fi
- break
- fi
- if merge_mode
- then
- trust_exit_code="$(git config --bool \
- mergetool."$1".trustExitCode || echo false)"
- if test "$trust_exit_code" = "false"
- then
- touch "$BACKUP"
- ( eval $merge_tool_cmd )
- check_unchanged
- else
- ( eval $merge_tool_cmd )
- status=$?
- fi
else
( eval $merge_tool_cmd )
+ status=$?
fi
- ;;
- esac
- return $status
+ return $status
+ else
+ merge_cmd "$1"
+ fi
}
-guess_merge_tool () {
+list_merge_tool_candidates () {
if merge_mode
then
tools="tortoisemerge"
else
tools="opendiff kdiff3 tkdiff xxdiff meld $tools"
fi
- tools="$tools gvimdiff diffuse ecmerge p4merge araxis bc3"
+ tools="$tools gvimdiff diffuse ecmerge p4merge araxis bc3 codecompare"
fi
case "${VISUAL:-$EDITOR}" in
*vim*)
tools="$tools emerge vimdiff"
;;
esac
+}
+
+guess_merge_tool () {
+ list_merge_tool_candidates
echo >&2 "merge tool candidates: $tools"
# Loop over each candidate and stop when a valid merge tool is found.
get_merge_tool_path () {
# A merge tool has been set, so verify that it's valid.
- if test -n "$1"
- then
- merge_tool="$1"
- else
- merge_tool="$(get_merge_tool)"
- fi
+ merge_tool="$1"
if ! valid_tool "$merge_tool"
then
echo >&2 "Unknown merge tool $merge_tool"
get_merge_tool () {
# Check if a merge tool has been configured
- merge_tool=$(get_configured_merge_tool)
+ merge_tool="$(get_configured_merge_tool)"
# Try to guess an appropriate merge tool if no tool has been set.
if test -z "$merge_tool"
then