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git/git-mergetool--lib.sh
David Aguilar b6f0621a46 mergetool--lib: add support for araxis merge
Araxis merge is now a built-in diff/merge tool.
This adds araxis to git-completion and updates
the documentation to mention araxis.

Signed-off-by: David Aguilar <davvid@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-05-24 11:21:05 -07:00

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# git-mergetool--lib is a library for common merge tool functions
diff_mode() {
test "$TOOL_MODE" = diff
}
merge_mode() {
test "$TOOL_MODE" = merge
}
translate_merge_tool_path () {
case "$1" in
vimdiff)
echo vim
;;
gvimdiff)
echo gvim
;;
emerge)
echo emacs
;;
araxis)
echo compare
;;
*)
echo "$1"
;;
esac
}
check_unchanged () {
if test "$MERGED" -nt "$BACKUP"; then
status=0
else
while true; do
echo "$MERGED seems unchanged."
printf "Was the merge successful? [y/n] "
read answer < /dev/tty
case "$answer" in
y*|Y*) status=0; break ;;
n*|N*) status=1; break ;;
esac
done
fi
}
valid_tool () {
case "$1" in
kdiff3 | tkdiff | xxdiff | meld | opendiff | \
emerge | vimdiff | gvimdiff | ecmerge | diffuse | araxis)
;; # happy
tortoisemerge)
if ! merge_mode; then
return 1
fi
;;
kompare)
if ! diff_mode; then
return 1
fi
;;
*)
if test -z "$(get_merge_tool_cmd "$1")"; then
return 1
fi
;;
esac
}
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
if diff_mode; then
echo "$(git config difftool.$merge_tool.cmd ||
git config mergetool.$merge_tool.cmd)"
else
echo "$(git config mergetool.$merge_tool.cmd)"
fi
}
run_merge_tool () {
merge_tool_path="$(get_merge_tool_path "$1")" || exit
base_present="$2"
status=0
case "$1" in
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"
;;
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
status=$?
else
"$merge_tool_path" "$LOCAL" "$REMOTE"
fi
;;
meld)
if merge_mode; then
touch "$BACKUP"
"$merge_tool_path" "$LOCAL" "$MERGED" "$REMOTE"
check_unchanged
else
"$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" "$REMOTE" | cat
fi
;;
vimdiff)
if merge_mode; then
touch "$BACKUP"
"$merge_tool_path" -d -c "wincmd l" \
"$LOCAL" "$MERGED" "$REMOTE"
check_unchanged
else
"$merge_tool_path" -d -c "wincmd l" \
"$LOCAL" "$REMOTE"
fi
;;
gvimdiff)
if merge_mode; then
touch "$BACKUP"
"$merge_tool_path" -d -c "wincmd l" -f \
"$LOCAL" "$MERGED" "$REMOTE"
check_unchanged
else
"$merge_tool_path" -d -c "wincmd l" -f \
"$LOCAL" "$REMOTE"
fi
;;
xxdiff)
if merge_mode; then
touch "$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" "$REMOTE"
fi
;;
opendiff)
if merge_mode; then
touch "$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" "$REMOTE" | cat
fi
;;
ecmerge)
if merge_mode; then
touch "$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
;;
tortoisemerge)
if $base_present; then
touch "$BACKUP"
"$merge_tool_path" \
-base:"$BASE" -mine:"$LOCAL" \
-theirs:"$REMOTE" -merged:"$MERGED"
check_unchanged
else
echo "TortoiseMerge cannot be used without a base" 1>&2
status=1
fi
;;
araxis)
if merge_mode; then
touch "$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" "$REMOTE" \
>/dev/null 2>&1
fi
;;
*)
merge_tool_cmd="$(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 )
fi
;;
esac
return $status
}
guess_merge_tool () {
if merge_mode; then
tools="tortoisemerge"
else
tools="kompare"
fi
if test -n "$DISPLAY"; then
if test -n "$GNOME_DESKTOP_SESSION_ID" ; then
tools="meld opendiff kdiff3 tkdiff xxdiff $tools"
else
tools="opendiff kdiff3 tkdiff xxdiff meld $tools"
fi
tools="$tools gvimdiff diffuse ecmerge araxis"
fi
if echo "${VISUAL:-$EDITOR}" | grep emacs > /dev/null 2>&1; then
# $EDITOR is emacs so add emerge as a candidate
tools="$tools emerge vimdiff"
elif echo "${VISUAL:-$EDITOR}" | grep vim > /dev/null 2>&1; then
# $EDITOR is vim so add vimdiff as a candidate
tools="$tools vimdiff emerge"
else
tools="$tools emerge vimdiff"
fi
echo >&2 "merge tool candidates: $tools"
# Loop over each candidate and stop when a valid merge tool is found.
for i in $tools
do
merge_tool_path="$(translate_merge_tool_path "$i")"
if type "$merge_tool_path" > /dev/null 2>&1; then
echo "$i"
return 0
fi
done
echo >&2 "No known merge resolution program available."
return 1
}
get_configured_merge_tool () {
# Diff mode first tries diff.tool and falls back to merge.tool.
# Merge mode only checks merge.tool
if diff_mode; then
merge_tool=$(git config diff.tool || git config merge.tool)
else
merge_tool=$(git config merge.tool)
fi
if test -n "$merge_tool" && ! valid_tool "$merge_tool"; then
echo >&2 "git config option $TOOL_MODE.tool set to unknown tool: $merge_tool"
echo >&2 "Resetting to default..."
return 1
fi
echo "$merge_tool"
}
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
if ! valid_tool "$merge_tool"; then
echo >&2 "Unknown merge tool $merge_tool"
exit 1
fi
if diff_mode; then
merge_tool_path=$(git config difftool."$merge_tool".path ||
git config mergetool."$merge_tool".path)
else
merge_tool_path=$(git config mergetool."$merge_tool".path)
fi
if test -z "$merge_tool_path"; then
merge_tool_path="$(translate_merge_tool_path "$merge_tool")"
fi
if test -z "$(get_merge_tool_cmd "$merge_tool")" &&
! type "$merge_tool_path" > /dev/null 2>&1; then
echo >&2 "The $TOOL_MODE tool $merge_tool is not available as"\
"'$merge_tool_path'"
exit 1
fi
echo "$merge_tool_path"
}
get_merge_tool () {
# Check if a merge tool has been configured
merge_tool=$(get_configured_merge_tool)
# Try to guess an appropriate merge tool if no tool has been set.
if test -z "$merge_tool"; then
merge_tool="$(guess_merge_tool)" || exit
fi
echo "$merge_tool"
}