From 94e2e28eddcb667c939d5e7e54a08b64bca0237b Mon Sep 17 00:00:00 2001
From: c9s <yoanlin93@gmail.com>
Date: Wed, 17 Aug 2022 16:45:10 +0800
Subject: [PATCH 1/2] strategy/autoborrow: add debt re-balancing

---
 pkg/strategy/autoborrow/strategy.go | 64 ++++++++++++++++++++++++++++-
 1 file changed, 63 insertions(+), 1 deletion(-)

diff --git a/pkg/strategy/autoborrow/strategy.go b/pkg/strategy/autoborrow/strategy.go
index 34dfb209c..1ad7b4d59 100644
--- a/pkg/strategy/autoborrow/strategy.go
+++ b/pkg/strategy/autoborrow/strategy.go
@@ -47,6 +47,7 @@ type MarginAsset struct {
 	MaxTotalBorrow       fixedpoint.Value `json:"maxTotalBorrow"`
 	MaxQuantityPerBorrow fixedpoint.Value `json:"maxQuantityPerBorrow"`
 	MinQuantityPerBorrow fixedpoint.Value `json:"minQuantityPerBorrow"`
+	MinDebtRatio         fixedpoint.Value `json:"debtRatio"`
 }
 
 type Strategy struct {
@@ -109,7 +110,68 @@ func (s *Strategy) tryToRepayAnyDebt(ctx context.Context) {
 	}
 }
 
+func (s *Strategy) reBalanceDebt(ctx context.Context) {
+	account, err := s.ExchangeSession.UpdateAccount(ctx)
+	if err != nil {
+		log.WithError(err).Errorf("can not update account")
+		return
+	}
+
+	minMarginLevel := s.MinMarginLevel
+	curMarginLevel := account.MarginLevel
+
+	balances := account.Balances()
+	if len(balances) == 0 {
+		log.Warn("balance is empty, skip autoborrow")
+		return
+	}
+
+	for _, marginAsset := range s.Assets {
+		b, ok := balances[marginAsset.Asset]
+		if !ok {
+			continue
+		}
+
+		// debt / total
+		debtRatio := b.Debt().Div(b.Total())
+		if marginAsset.MinDebtRatio.IsZero() {
+			marginAsset.MinDebtRatio = fixedpoint.One
+		}
+
+		// if debt is greater than total, skip repay
+		if b.Debt().Compare(b.Total()) > 0 {
+			continue
+		}
+
+		// the current debt ratio is less than the minimal ratio,
+		// we need to repay and reduce the debt
+		if marginAsset.MinDebtRatio.Compare(debtRatio) < 0 {
+			continue
+		}
+
+		toRepay := fixedpoint.Min(b.Borrowed, b.Available)
+		if toRepay.IsZero() {
+			return
+		}
+
+		bbgo.Notify(&MarginAction{
+			Exchange:       s.ExchangeSession.ExchangeName,
+			Action:         "Repay for Debt Ratio",
+			Asset:          b.Currency,
+			Amount:         toRepay,
+			MarginLevel:    curMarginLevel,
+			MinMarginLevel: minMarginLevel,
+		})
+
+		if err := s.marginBorrowRepay.RepayMarginAsset(context.Background(), b.Currency, toRepay); err != nil {
+			log.WithError(err).Errorf("margin repay error")
+		}
+	}
+}
+
 func (s *Strategy) checkAndBorrow(ctx context.Context) {
+	s.reBalanceDebt(ctx)
+
 	if s.MinMarginLevel.IsZero() {
 		return
 	}
@@ -148,7 +210,7 @@ func (s *Strategy) checkAndBorrow(ctx context.Context) {
 		log.Warn("balance is empty, skip autoborrow")
 		return
 	}
-
+	
 	for _, marginAsset := range s.Assets {
 		changed := false
 

From 93ab26fbf7d2ea818558fb473191ec494ec303b5 Mon Sep 17 00:00:00 2001
From: c9s <yoanlin93@gmail.com>
Date: Wed, 17 Aug 2022 17:00:00 +0800
Subject: [PATCH 2/2] doc: add instruction for creating branch

---
 doc/development/release-process.md | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/doc/development/release-process.md b/doc/development/release-process.md
index f92152dd1..89efb1b35 100644
--- a/doc/development/release-process.md
+++ b/doc/development/release-process.md
@@ -1,5 +1,11 @@
 # Release Process
 
+Create a new branch for the new release:
+
+```shell
+git checkout -b release/v1.39.0 origin/main
+```
+
 ## 1. Run the release test script
 
 ```shell