From f9d4958195433864b66fe1e66b5af3fc2bcf1d21 Mon Sep 17 00:00:00 2001
From: tatsuo48 <green.americanidiot.yokoyama@gmail.com>
Date: Sat, 27 Feb 2021 08:42:59 +0900
Subject: [PATCH 1/5] allow prefix at date tag

---
 format.go | 20 ++++++++++++--------
 1 file changed, 12 insertions(+), 8 deletions(-)

diff --git a/format.go b/format.go
index ed6d1dc..356b65e 100644
--- a/format.go
+++ b/format.go
@@ -1,6 +1,7 @@
 package main
 
 import (
+	"regexp"
 	"strconv"
 	"strings"
 	"time"
@@ -30,16 +31,19 @@ func GetNextVersion(tag string) (string, error) {
 	const layout = "20060102"
 	today := time.Now().Format(layout)
 
-	if tags[0] == today {
-		minor, err := strconv.Atoi(tags[1])
-		if err != nil {
-			return "", err
-		}
+	dateRe := regexp.MustCompile(`(.*)(\d{8})(\.)(.+)`)
+	if match := dateRe.FindStringSubmatch(tag); match != nil {
+		if match[2] == today {
+			minor, err := strconv.Atoi(match[4])
+			if err != nil {
+				return "", err
+			}
 
-		next := strconv.Itoa(minor + 1)
-		return today + "." + next, nil
+			next := strconv.Itoa(minor + 1)
+			return match[1] + today + "." + next, nil
+		}
+		return match[1] + today + "." + "1", nil
 	}
-
 	return today + ".1", nil
 }
 

From 2ed4da7a05164ccd62b56502e4b7b99fc3f723f3 Mon Sep 17 00:00:00 2001
From: tatsuo48 <green.americanidiot.yokoyama@gmail.com>
Date: Sat, 27 Feb 2021 08:56:31 +0900
Subject: [PATCH 2/5] add test

---
 format_test.go | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/format_test.go b/format_test.go
index f6f4d8b..e6e4d03 100644
--- a/format_test.go
+++ b/format_test.go
@@ -53,6 +53,30 @@ func TestGetNextVersion_DatePlus(t *testing.T) {
 	}
 }
 
+func TestGetNextVersion_DateWithPrefix(t *testing.T) {
+	const prefix = "release_"
+	tag, _ := GetNextVersion(prefix + "20180525.1")
+
+	const layout = "20060102"
+	today := time.Now().Format(layout)
+	expected := prefix + today + ".1"
+	if tag != expected {
+		t.Errorf("Output=%q, Expected=%q", tag, expected)
+	}
+}
+
+func TestGetNextVersion_DatePlusWithPrefix(t *testing.T) {
+	const prefix = "release_"
+	const layout = "20060102"
+	today := time.Now().Format(layout)
+	tag, _ := GetNextVersion(prefix + today + ".1")
+
+	expected := prefix + today + ".2"
+	if tag != expected {
+		t.Errorf("Output=%q, Expected=%q", tag, expected)
+	}
+}
+
 func TestGetNextVersion_DateError(t *testing.T) {
 	const layout = "20060102"
 	today := time.Now().Format(layout)

From 18b36b8fe4afc199f9e181c01b9e513d9c48030c Mon Sep 17 00:00:00 2001
From: tatsuo48 <green.americanidiot.yokoyama@gmail.com>
Date: Sat, 27 Feb 2021 09:12:47 +0900
Subject: [PATCH 3/5] fix

---
 format.go | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/format.go b/format.go
index 356b65e..d56b856 100644
--- a/format.go
+++ b/format.go
@@ -31,18 +31,18 @@ func GetNextVersion(tag string) (string, error) {
 	const layout = "20060102"
 	today := time.Now().Format(layout)
 
-	dateRe := regexp.MustCompile(`(.*)(\d{8})(\.)(.+)`)
-	if match := dateRe.FindStringSubmatch(tag); match != nil {
-		if match[2] == today {
-			minor, err := strconv.Atoi(match[4])
+	dateRe := regexp.MustCompile(`(.*)(\d{8})\.(.+)`)
+	if m := dateRe.FindStringSubmatch(tag); m != nil {
+		if m[2] == today {
+			minor, err := strconv.Atoi(m[3])
 			if err != nil {
 				return "", err
 			}
 
 			next := strconv.Itoa(minor + 1)
-			return match[1] + today + "." + next, nil
+			return m[1] + today + "." + next, nil
 		}
-		return match[1] + today + "." + "1", nil
+		return m[1] + today + "." + "1", nil
 	}
 	return today + ".1", nil
 }

From 2aca8d5350c48ce840cc7fd2ffa70bdbc6e7b736 Mon Sep 17 00:00:00 2001
From: itosho <www.itosho@gmail.com>
Date: Mon, 8 Mar 2021 00:04:23 +0900
Subject: [PATCH 4/5] Improve a document

---
 README.md | 2 +-
 format.go | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/README.md b/README.md
index 025bcdc..f5a2a97 100755
--- a/README.md
+++ b/README.md
@@ -69,7 +69,7 @@ $ gdp publish
 
 ### Supported tag's format
 - [semantic version](https://semver.org/): e.g. v1.2.3 or 1.2.3
-- date version: e.g. 20180525.1
+- date version: e.g. 20180525.1 or release_20180525
 
 ### How to create generate note
 Release note content is generated based on merge commit messages.
diff --git a/format.go b/format.go
index d56b856..a8eccd3 100644
--- a/format.go
+++ b/format.go
@@ -27,7 +27,7 @@ func GetNextVersion(tag string) (string, error) {
 		return strings.Join(tags, "."), nil
 	}
 
-	// date version(e.g. 20180525.1)
+	// date version(e.g. 20180525.1 or release_20180525.1)
 	const layout = "20060102"
 	today := time.Now().Format(layout)
 

From 1be47d2b4d269877de575cf2b846bf8dcfb13af0 Mon Sep 17 00:00:00 2001
From: itosho <www.itosho@gmail.com>
Date: Mon, 8 Mar 2021 00:06:44 +0900
Subject: [PATCH 5/5] Update a version

---
 main.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/main.go b/main.go
index 916d061..5104157 100755
--- a/main.go
+++ b/main.go
@@ -6,7 +6,7 @@ import (
 )
 
 // Version is GDP's version.
-const Version string = "v0.2.4"
+const Version string = "v0.2.5"
 
 // Usage is GDP's usage.
 const Usage string = "usage: gdp deploy|publish [options]"