# Copyright (c) 2006 Theodore Y. Ts'o
#
# This file is licensed under the GPL v2, or a later version
-# at the discretion of Junio C Hammano.
+# at the discretion of Junio C Hamano.
#
USAGE='[--tool=tool] [file to merge] ...'
SUBDIRECTORY_OK=Yes
. git-sh-setup
require_work_tree
+prefix=$(git rev-parse --show-prefix)
# Returns true if the mode reflects a symlink
-function is_symlink () {
+is_symlink () {
test "$1" = 120000
}
-function local_present () {
+local_present () {
test -n "$local_mode"
}
-function remote_present () {
+remote_present () {
test -n "$remote_mode"
}
-function base_present () {
+base_present () {
test -n "$base_mode"
}
fi
}
-function describe_file () {
+describe_file () {
mode="$1"
branch="$2"
file="$3"
- printf " "
+ printf " {%s}: " "$branch"
if test -z "$mode"; then
- printf "'%s' was deleted" "$path"
+ echo "deleted"
elif is_symlink "$mode" ; then
- printf "'%s' is a symlink containing '%s'" "$path" "$file"
+ echo "a symbolic link -> '$(cat "$file")'"
else
if base_present; then
- printf "'%s' was created" "$path"
+ echo "modified"
else
- printf "'%s' was modified" "$path"
+ echo "created"
fi
fi
- echo " in the $branch branch"
}
resolve_symlink_merge () {
while true; do
- printf "Use (r)emote or (l)ocal, or (a)bort? "
+ printf "Use (l)ocal or (r)emote, or (a)bort? "
read ans
case "$ans" in
[lL]*)
- git-checkout-index -f --stage=2 -- "$path"
- git-add -- "$path"
+ git checkout-index -f --stage=2 -- "$path"
+ git add -- "$path"
cleanup_temp_files --save-backup
return
;;
- [rR]*)
- git-checkout-index -f --stage=3 -- "$path"
- git-add -- "$path"
+ [rR]*)
+ git checkout-index -f --stage=3 -- "$path"
+ git add -- "$path"
cleanup_temp_files --save-backup
return
;;
- [qQ]*)
+ [aA]*)
exit 1
;;
esac
resolve_deleted_merge () {
while true; do
- printf "Use (m)odified or (d)eleted file, or (a)bort? "
+ if base_present; then
+ printf "Use (m)odified or (d)eleted file, or (a)bort? "
+ else
+ printf "Use (c)reated or (d)eleted file, or (a)bort? "
+ fi
read ans
case "$ans" in
- [mM]*)
- git-add -- "$path"
+ [mMcC]*)
+ git add -- "$path"
cleanup_temp_files --save-backup
return
;;
- [dD]*)
- git-rm -- "$path"
+ [dD]*)
+ git rm -- "$path" > /dev/null
cleanup_temp_files
return
;;
- [qQ]*)
+ [aA]*)
exit 1
;;
esac
done
}
+check_unchanged () {
+ if test "$path" -nt "$BACKUP" ; then
+ status=0;
+ else
+ while true; do
+ echo "$path seems unchanged."
+ printf "Was the merge successful? [y/n] "
+ read answer < /dev/tty
+ case "$answer" in
+ y*|Y*) status=0; break ;;
+ n*|N*) status=1; break ;;
+ esac
+ done
+ fi
+}
+
+save_backup () {
+ if test "$status" -eq 0; then
+ mv -- "$BACKUP" "$path.orig"
+ fi
+}
+
+remove_backup () {
+ if test "$status" -eq 0; then
+ rm "$BACKUP"
+ fi
+}
+
merge_file () {
path="$1"
- f=`git-ls-files -u -- "$path"`
+ f=`git ls-files -u -- "$path"`
if test -z "$f" ; then
- if test ! -f "$path" ; then
+ if test ! -f "$path" ; then
echo "$path: file not found"
else
echo "$path: file does not need merging"
local_mode=`git ls-files -u -- "$path" | awk '{if ($3==2) print $1;}'`
remote_mode=`git ls-files -u -- "$path" | awk '{if ($3==3) print $1;}'`
- base_present && git cat-file blob ":1:$path" > "$BASE" 2>/dev/null
- local_present && git cat-file blob ":2:$path" > "$LOCAL" 2>/dev/null
- remote_present && git cat-file blob ":3:$path" > "$REMOTE" 2>/dev/null
+ base_present && git cat-file blob ":1:$prefix$path" >"$BASE" 2>/dev/null
+ local_present && git cat-file blob ":2:$prefix$path" >"$LOCAL" 2>/dev/null
+ remote_present && git cat-file blob ":3:$prefix$path" >"$REMOTE" 2>/dev/null
if test -z "$local_mode" -o -z "$remote_mode"; then
- echo "Deleted merge conflict for $path:"
+ echo "Deleted merge conflict for '$path':"
describe_file "$local_mode" "local" "$LOCAL"
describe_file "$remote_mode" "remote" "$REMOTE"
resolve_deleted_merge
fi
if is_symlink "$local_mode" || is_symlink "$remote_mode"; then
- echo "Symlink merge conflict for $path:"
+ echo "Symbolic link merge conflict for '$path':"
describe_file "$local_mode" "local" "$LOCAL"
describe_file "$remote_mode" "remote" "$REMOTE"
resolve_symlink_merge
return
fi
- echo "Normal merge conflict for $path:"
+ echo "Normal merge conflict for '$path':"
describe_file "$local_mode" "local" "$LOCAL"
describe_file "$remote_mode" "remote" "$REMOTE"
printf "Hit return to start merge resolution tool (%s): " "$merge_tool"
case "$merge_tool" in
kdiff3)
if base_present ; then
- (kdiff3 --auto --L1 "$path (Base)" -L2 "$path (Local)" --L3 "$path (Remote)" \
+ (kdiff3 --auto --L1 "$path (Base)" --L2 "$path (Local)" --L3 "$path (Remote)" \
-o "$path" -- "$BASE" "$LOCAL" "$REMOTE" > /dev/null 2>&1)
else
- (kdiff3 --auto -L1 "$path (Local)" --L2 "$path (Remote)" \
+ (kdiff3 --auto --L1 "$path (Local)" --L2 "$path (Remote)" \
-o "$path" -- "$LOCAL" "$REMOTE" > /dev/null 2>&1)
fi
status=$?
- if test "$status" -eq 0; then
- rm "$BACKUP"
- fi
+ remove_backup
;;
tkdiff)
if base_present ; then
tkdiff -o "$path" -- "$LOCAL" "$REMOTE"
fi
status=$?
- if test "$status" -eq 0; then
- mv -- "$BACKUP" "$path.orig"
- fi
+ save_backup
;;
meld|vimdiff)
touch "$BACKUP"
$merge_tool -- "$LOCAL" "$path" "$REMOTE"
- if test "$path" -nt "$BACKUP" ; then
- status=0;
- else
- while true; do
- echo "$path seems unchanged."
- printf "Was the merge successful? [y/n] "
- read answer < /dev/tty
- case "$answer" in
- y*|Y*) status=0; break ;;
- n*|N*) status=1; break ;;
- esac
- done
- fi
- if test "$status" -eq 0; then
- mv -- "$BACKUP" "$path.orig"
- fi
+ check_unchanged
+ save_backup
;;
+ gvimdiff)
+ touch "$BACKUP"
+ gvimdiff -f -- "$LOCAL" "$path" "$REMOTE"
+ check_unchanged
+ save_backup
+ ;;
xxdiff)
touch "$BACKUP"
if base_present ; then
-R 'Accel.SearchForward: "Ctrl-G"' \
--merged-file "$path" -- "$LOCAL" "$REMOTE"
fi
- if test "$path" -nt "$BACKUP" ; then
- status=0;
+ check_unchanged
+ save_backup
+ ;;
+ opendiff)
+ touch "$BACKUP"
+ if base_present; then
+ opendiff "$LOCAL" "$REMOTE" -ancestor "$BASE" -merge "$path" | cat
else
- while true; do
- echo "$path seems unchanged."
- printf "Was the merge successful? [y/n] "
- read answer < /dev/tty
- case "$answer" in
- y*|Y*) status=0; break ;;
- n*|N*) status=1; break ;;
- esac
- done
- fi
- if test "$status" -eq 0; then
- mv -- "$BACKUP" "$path.orig"
+ opendiff "$LOCAL" "$REMOTE" -merge "$path" | cat
fi
+ check_unchanged
+ save_backup
;;
emerge)
if base_present ; then
- emacs -f emerge-files-with-ancestor-command "$LOCAL" "$REMOTE" "$BASE" "$path"
+ emacs -f emerge-files-with-ancestor-command "$LOCAL" "$REMOTE" "$BASE" "$(basename "$path")"
else
- emacs -f emerge-files-command "$LOCAL" "$REMOTE" "$path"
+ emacs -f emerge-files-command "$LOCAL" "$REMOTE" "$(basename "$path")"
fi
status=$?
- if test "$status" -eq 0; then
- mv -- "$BACKUP" "$path.orig"
- fi
+ save_backup
;;
esac
if test "$status" -ne 0; then
cleanup_temp_files
}
-while case $# in 0) break ;; esac
+while test $# != 0
do
case "$1" in
-t|--tool*)
done
if test -z "$merge_tool"; then
- merge_tool=`git-config merge.tool`
+ merge_tool=`git config merge.tool`
case "$merge_tool" in
- kdiff3 | tkdiff | xxdiff | meld | emerge | vimdiff)
+ kdiff3 | tkdiff | xxdiff | meld | opendiff | emerge | vimdiff | gvimdiff | "")
;; # happy
*)
echo >&2 "git config option merge.tool set to unknown tool: $merge_tool"
fi
if test -z "$merge_tool" ; then
- if type kdiff3 >/dev/null 2>&1 && test -n "$DISPLAY"; then
- merge_tool="kdiff3";
- elif type tkdiff >/dev/null 2>&1 && test -n "$DISPLAY"; then
- merge_tool=tkdiff
- elif type xxdiff >/dev/null 2>&1 && test -n "$DISPLAY"; then
- merge_tool=xxdiff
- elif type meld >/dev/null 2>&1 && test -n "$DISPLAY"; then
- merge_tool=meld
- elif type emacs >/dev/null 2>&1; then
- merge_tool=emerge
- elif type vimdiff >/dev/null 2>&1; then
- merge_tool=vimdiff
- else
+ if test -n "$DISPLAY"; then
+ merge_tool_candidates="kdiff3 tkdiff xxdiff meld gvimdiff"
+ if test -n "$GNOME_DESKTOP_SESSION_ID" ; then
+ merge_tool_candidates="meld $merge_tool_candidates"
+ fi
+ if test "$KDE_FULL_SESSION" = "true"; then
+ merge_tool_candidates="kdiff3 $merge_tool_candidates"
+ fi
+ fi
+ if echo "${VISUAL:-$EDITOR}" | grep 'emacs' > /dev/null 2>&1; then
+ merge_tool_candidates="$merge_tool_candidates emerge"
+ fi
+ if echo "${VISUAL:-$EDITOR}" | grep 'vim' > /dev/null 2>&1; then
+ merge_tool_candidates="$merge_tool_candidates vimdiff"
+ fi
+ merge_tool_candidates="$merge_tool_candidates opendiff emerge vimdiff"
+ echo "merge tool candidates: $merge_tool_candidates"
+ for i in $merge_tool_candidates; do
+ if test $i = emerge ; then
+ cmd=emacs
+ else
+ cmd=$i
+ fi
+ if type $cmd > /dev/null 2>&1; then
+ merge_tool=$i
+ break
+ fi
+ done
+ if test -z "$merge_tool" ; then
echo "No available merge resolution programs available."
exit 1
fi
fi
case "$merge_tool" in
- kdiff3|tkdiff|meld|xxdiff|vimdiff)
+ kdiff3|tkdiff|meld|xxdiff|vimdiff|gvimdiff|opendiff)
if ! type "$merge_tool" > /dev/null 2>&1; then
echo "The merge tool $merge_tool is not available"
exit 1