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-rwxr-xr-xgit-mergetool.sh327
1 files changed, 327 insertions, 0 deletions
diff --git a/git-mergetool.sh b/git-mergetool.sh
new file mode 100755
index 0000000..2f8dc44
--- /dev/null
+++ b/git-mergetool.sh
@@ -0,0 +1,327 @@
+#!/bin/sh
+#
+# This program resolves merge conflicts in git
+#
+# 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 Hamano.
+#
+
+USAGE='[--tool=tool] [-y|--no-prompt|--prompt] [file to merge] ...'
+SUBDIRECTORY_OK=Yes
+OPTIONS_SPEC=
+TOOL_MODE=merge
+. git-sh-setup
+. git-mergetool--lib
+require_work_tree
+
+# Returns true if the mode reflects a symlink
+is_symlink () {
+ test "$1" = 120000
+}
+
+local_present () {
+ test -n "$local_mode"
+}
+
+remote_present () {
+ test -n "$remote_mode"
+}
+
+base_present () {
+ test -n "$base_mode"
+}
+
+cleanup_temp_files () {
+ if test "$1" = --save-backup ; then
+ mv -- "$BACKUP" "$MERGED.orig"
+ rm -f -- "$LOCAL" "$REMOTE" "$BASE"
+ else
+ rm -f -- "$LOCAL" "$REMOTE" "$BASE" "$BACKUP"
+ fi
+}
+
+describe_file () {
+ mode="$1"
+ branch="$2"
+ file="$3"
+
+ printf " {%s}: " "$branch"
+ if test -z "$mode"; then
+ echo "deleted"
+ elif is_symlink "$mode" ; then
+ echo "a symbolic link -> '$(cat "$file")'"
+ else
+ if base_present; then
+ echo "modified"
+ else
+ echo "created"
+ fi
+ fi
+}
+
+
+resolve_symlink_merge () {
+ while true; do
+ printf "Use (l)ocal or (r)emote, or (a)bort? "
+ read ans
+ case "$ans" in
+ [lL]*)
+ git checkout-index -f --stage=2 -- "$MERGED"
+ git add -- "$MERGED"
+ cleanup_temp_files --save-backup
+ return 0
+ ;;
+ [rR]*)
+ git checkout-index -f --stage=3 -- "$MERGED"
+ git add -- "$MERGED"
+ cleanup_temp_files --save-backup
+ return 0
+ ;;
+ [aA]*)
+ return 1
+ ;;
+ esac
+ done
+}
+
+resolve_deleted_merge () {
+ while true; do
+ if base_present; then
+ printf "Use (m)odified or (d)eleted file, or (a)bort? "
+ else
+ printf "Use (c)reated or (d)eleted file, or (a)bort? "
+ fi
+ read ans
+ case "$ans" in
+ [mMcC]*)
+ git add -- "$MERGED"
+ cleanup_temp_files --save-backup
+ return 0
+ ;;
+ [dD]*)
+ git rm -- "$MERGED" > /dev/null
+ cleanup_temp_files
+ return 0
+ ;;
+ [aA]*)
+ return 1
+ ;;
+ esac
+ done
+}
+
+checkout_staged_file () {
+ tmpfile=$(expr "$(git checkout-index --temp --stage="$1" "$2")" : '\([^ ]*\) ')
+
+ if test $? -eq 0 -a -n "$tmpfile" ; then
+ mv -- "$(git rev-parse --show-cdup)$tmpfile" "$3"
+ fi
+}
+
+merge_file () {
+ MERGED="$1"
+
+ f=$(git ls-files -u -- "$MERGED")
+ if test -z "$f" ; then
+ if test ! -f "$MERGED" ; then
+ echo "$MERGED: file not found"
+ else
+ echo "$MERGED: file does not need merging"
+ fi
+ return 1
+ fi
+
+ ext="$$$(expr "$MERGED" : '.*\(\.[^/]*\)$')"
+ BACKUP="./$MERGED.BACKUP.$ext"
+ LOCAL="./$MERGED.LOCAL.$ext"
+ REMOTE="./$MERGED.REMOTE.$ext"
+ BASE="./$MERGED.BASE.$ext"
+
+ mv -- "$MERGED" "$BACKUP"
+ cp -- "$BACKUP" "$MERGED"
+
+ base_mode=$(git ls-files -u -- "$MERGED" | awk '{if ($3==1) print $1;}')
+ local_mode=$(git ls-files -u -- "$MERGED" | awk '{if ($3==2) print $1;}')
+ remote_mode=$(git ls-files -u -- "$MERGED" | awk '{if ($3==3) print $1;}')
+
+ base_present && checkout_staged_file 1 "$MERGED" "$BASE"
+ local_present && checkout_staged_file 2 "$MERGED" "$LOCAL"
+ remote_present && checkout_staged_file 3 "$MERGED" "$REMOTE"
+
+ if test -z "$local_mode" -o -z "$remote_mode"; then
+ echo "Deleted merge conflict for '$MERGED':"
+ describe_file "$local_mode" "local" "$LOCAL"
+ describe_file "$remote_mode" "remote" "$REMOTE"
+ resolve_deleted_merge
+ return
+ fi
+
+ if is_symlink "$local_mode" || is_symlink "$remote_mode"; then
+ echo "Symbolic link merge conflict for '$MERGED':"
+ describe_file "$local_mode" "local" "$LOCAL"
+ describe_file "$remote_mode" "remote" "$REMOTE"
+ resolve_symlink_merge
+ return
+ fi
+
+ echo "Normal merge conflict for '$MERGED':"
+ describe_file "$local_mode" "local" "$LOCAL"
+ describe_file "$remote_mode" "remote" "$REMOTE"
+ if "$prompt" = true; then
+ printf "Hit return to start merge resolution tool (%s): " "$merge_tool"
+ read ans
+ fi
+
+ if base_present; then
+ present=true
+ else
+ present=false
+ fi
+
+ if ! run_merge_tool "$merge_tool" "$present"; then
+ echo "merge of $MERGED failed" 1>&2
+ mv -- "$BACKUP" "$MERGED"
+
+ if test "$merge_keep_temporaries" = "false"; then
+ cleanup_temp_files
+ fi
+
+ return 1
+ fi
+
+ if test "$merge_keep_backup" = "true"; then
+ mv -- "$BACKUP" "$MERGED.orig"
+ else
+ rm -- "$BACKUP"
+ fi
+
+ git add -- "$MERGED"
+ cleanup_temp_files
+ return 0
+}
+
+prompt=$(git config --bool mergetool.prompt || echo true)
+
+while test $# != 0
+do
+ case "$1" in
+ -t|--tool*)
+ case "$#,$1" in
+ *,*=*)
+ merge_tool=$(expr "z$1" : 'z-[^=]*=\(.*\)')
+ ;;
+ 1,*)
+ usage ;;
+ *)
+ merge_tool="$2"
+ shift ;;
+ esac
+ ;;
+ -y|--no-prompt)
+ prompt=false
+ ;;
+ --prompt)
+ prompt=true
+ ;;
+ --)
+ shift
+ break
+ ;;
+ -*)
+ usage
+ ;;
+ *)
+ break
+ ;;
+ esac
+ shift
+done
+
+prompt_after_failed_merge() {
+ while true; do
+ printf "Continue merging other unresolved paths (y/n) ? "
+ read ans
+ case "$ans" in
+
+ [yY]*)
+ return 0
+ ;;
+
+ [nN]*)
+ return 1
+ ;;
+ esac
+ done
+}
+
+if test -z "$merge_tool"; then
+ merge_tool=$(get_merge_tool "$merge_tool") || exit
+fi
+merge_keep_backup="$(git config --bool mergetool.keepBackup || echo true)"
+merge_keep_temporaries="$(git config --bool mergetool.keepTemporaries || echo false)"
+
+last_status=0
+rollup_status=0
+rerere=false
+
+files_to_merge() {
+ if test "$rerere" = true
+ then
+ git rerere status
+ else
+ git ls-files -u | sed -e 's/^[^ ]* //' | sort -u
+ fi
+}
+
+
+if test $# -eq 0 ; then
+ cd_to_toplevel
+
+ if test -e "$GIT_DIR/MERGE_RR"
+ then
+ rerere=true
+ fi
+
+ files=$(files_to_merge)
+ if test -z "$files" ; then
+ echo "No files need merging"
+ exit 0
+ fi
+
+ # Save original stdin
+ exec 3<&0
+
+ printf "Merging:\n"
+ printf "$files\n"
+
+ files_to_merge |
+ while IFS= read i
+ do
+ if test $last_status -ne 0; then
+ prompt_after_failed_merge <&3 || exit 1
+ fi
+ printf "\n"
+ merge_file "$i" <&3
+ last_status=$?
+ if test $last_status -ne 0; then
+ rollup_status=1
+ fi
+ done
+else
+ while test $# -gt 0; do
+ if test $last_status -ne 0; then
+ prompt_after_failed_merge || exit 1
+ fi
+ printf "\n"
+ merge_file "$1"
+ last_status=$?
+ if test $last_status -ne 0; then
+ rollup_status=1
+ fi
+ shift
+ done
+fi
+
+exit $rollup_status
generated by cgit v0.10.2-6-g49f6 at 2024-05-06 03:04:39 (GMT)