gin/debug.go

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// Copyright 2014 Manu Martinez-Almeida. All rights reserved.
// Use of this source code is governed by a MIT style
// license that can be found in the LICENSE file.
package gin
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import (
"bytes"
"fmt"
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"html/template"
)
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// IsDebugging returns true if the framework is running in debug mode.
// Use SetMode(gin.ReleaseMode) to disable debug mode.
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func IsDebugging() bool {
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return ginMode == debugCode
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}
// DebugPrintRouteFunc indicates debug log output format.
var DebugPrintRouteFunc func(httpMethod, absolutePath, handlerName string, nuHandlers int)
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func debugPrintRoute(httpMethod, absolutePath string, handlers HandlersChain) {
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if IsDebugging() {
nuHandlers := len(handlers)
handlerName := nameOfFunction(handlers.Last())
if DebugPrintRouteFunc == nil {
debugPrint("%-6s %-25s --> %s (%d handlers)\n", httpMethod, absolutePath, handlerName, nuHandlers)
} else {
DebugPrintRouteFunc(httpMethod, absolutePath, handlerName, nuHandlers)
}
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}
}
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func debugPrintLoadTemplate(tmpl *template.Template) {
if IsDebugging() {
var buf bytes.Buffer
for _, tmpl := range tmpl.Templates() {
buf.WriteString("\t- ")
buf.WriteString(tmpl.Name())
buf.WriteString("\n")
}
debugPrint("Loaded HTML Templates (%d): \n%s\n", len(tmpl.Templates()), buf.String())
}
}
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func debugPrint(format string, values ...interface{}) {
if IsDebugging() {
fmt.Printf("[GIN-debug] "+format, values...)
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}
}
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func debugPrintWARNINGDefault() {
debugPrint(`[WARNING] Now Gin requires Go 1.6 or later and Go 1.7 will be required soon.
`)
debugPrint(`[WARNING] Creating an Engine instance with the Logger and Recovery middleware already attached.
`)
}
func debugPrintWARNINGNew() {
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debugPrint(`[WARNING] Running in "debug" mode. Switch to "release" mode in production.
- using env: export GIN_MODE=release
- using code: gin.SetMode(gin.ReleaseMode)
`)
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}
func debugPrintWARNINGSetHTMLTemplate() {
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debugPrint(`[WARNING] Since SetHTMLTemplate() is NOT thread-safe. It should only be called
at initialization. ie. before any route is registered or the router is listening in a socket:
router := gin.Default()
router.SetHTMLTemplate(template) // << good place
`)
}
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func debugPrintError(err error) {
if err != nil {
debugPrint("[ERROR] %v\n", err)
}
}