home/git: add fixup-interactive script

home/programs/git/scripts/git-fixup-interactive.sh

@@ -0,0 +1,18 @@
+if [ -n "${1:-}" ]; then
+  TARGET_BRANCH="$1"
+  shift
+else
+  TARGET_BRANCH=$(git remote show origin | sed -n '/HEAD branch/s/.*: //p')
+fi
+
+FORK_POINT=$(git merge-base --fork-point "$TARGET_BRANCH")
+
+COMMITS_SINCE_FORK_POINT=$(git log --format=format:'%s' "$FORK_POINT"..HEAD | grep -v -E '^fixup!')
+
+RESULT=$(fzf <<<"$COMMITS_SINCE_FORK_POINT")
+
+if [ "$RESULT" == "" ]; then
+  echo "Doing nothing..."
+else
+  git commit -m "fixup! $RESULT" "$@"
+fi