Don't store assets modified time into generated files (#18193)

5 files changed, 64 insertions, 2 deletions

diff --git a/modules/public/public_bindata.go b/modules/public/public_bindata.go
index eb10d96426..c5485b7cc0 100644
--- a/modules/public/public_bindata.go
+++ b/modules/public/public_bindata.go
@@ -7,4 +7,4 @@
 
 package public
 
-//go:generate go run -mod=vendor  ../../build/generate-bindata.go ../../public public bindata.go
+//go:generate go run -mod=vendor  ../../build/generate-bindata.go ../../public public bindata.go true
diff --git a/modules/public/static.go b/modules/public/static.go
index 32ba0fe258..2e35329a07 100644
--- a/modules/public/static.go
+++ b/modules/public/static.go
@@ -18,8 +18,14 @@ import (
 	"time"
 
 	"code.gitea.io/gitea/modules/log"
+	"code.gitea.io/gitea/modules/timeutil"
 )
 
+// GlobalModTime provide a gloabl mod time for embedded asset files
+func GlobalModTime(filename string) time.Time {
+	return timeutil.GetExecutableModTime()
+}
+
 func fileSystem(dir string) http.FileSystem {
 	return Assets
 }
diff --git a/modules/templates/static.go b/modules/templates/static.go
index fdd68c1e6a..c2295b2bd8 100644
--- a/modules/templates/static.go
+++ b/modules/templates/static.go
@@ -15,9 +15,11 @@ import (
 	"path/filepath"
 	"strings"
 	texttmpl "text/template"
+	"time"
 
 	"code.gitea.io/gitea/modules/log"
 	"code.gitea.io/gitea/modules/setting"
+	"code.gitea.io/gitea/modules/timeutil"
 	"code.gitea.io/gitea/modules/util"
 )
 
@@ -26,6 +28,11 @@ var (
 	bodyTemplates    = template.New("")
 )
 
+// GlobalModTime provide a gloabl mod time for embedded asset files
+func GlobalModTime(filename string) time.Time {
+	return timeutil.GetExecutableModTime()
+}
+
 // GetAsset get a special asset, only for chi
 func GetAsset(name string) ([]byte, error) {
 	bs, err := os.ReadFile(filepath.Join(setting.CustomPath, name))
diff --git a/modules/templates/templates_bindata.go b/modules/templates/templates_bindata.go
index 887f9eeba2..95f71d0042 100644
--- a/modules/templates/templates_bindata.go
+++ b/modules/templates/templates_bindata.go
@@ -7,4 +7,4 @@
 
 package templates
 
-//go:generate go run -mod=vendor ../../build/generate-bindata.go ../../templates templates bindata.go
+//go:generate go run -mod=vendor ../../build/generate-bindata.go ../../templates templates bindata.go true
diff --git a/modules/timeutil/executable.go b/modules/timeutil/executable.go
new file mode 100644
index 0000000000..b0a3280753
--- /dev/null
+++ b/modules/timeutil/executable.go
@@ -0,0 +1,49 @@
+// Copyright 2022 The Gitea Authors. All rights reserved.
+// Use of this source code is governed by a MIT-style
+// license that can be found in the LICENSE file.
+
+package timeutil
+
+import (
+	"os"
+	"path/filepath"
+	"sync"
+	"time"
+
+	"code.gitea.io/gitea/modules/log"
+)
+
+var executablModTime = time.Now()
+var executablModTimeOnce sync.Once
+
+// GetExecutableModTime get executable file modified time of current process.
+func GetExecutableModTime() time.Time {
+	executablModTimeOnce.Do(func() {
+		exePath, err := os.Executable()
+		if err != nil {
+			log.Error("os.Executable: %v", err)
+			return
+		}
+
+		exePath, err = filepath.Abs(exePath)
+		if err != nil {
+			log.Error("filepath.Abs: %v", err)
+			return
+		}
+
+		exePath, err = filepath.EvalSymlinks(exePath)
+		if err != nil {
+			log.Error("filepath.EvalSymlinks: %v", err)
+			return
+		}
+
+		st, err := os.Stat(exePath)
+		if err != nil {
+			log.Error("os.Stat: %v", err)
+			return
+		}
+
+		executablModTime = st.ModTime()
+	})
+	return executablModTime
+}